Background: Cervical Intraepithelial neoplasia treatments have become essential interventions to manage cervical lesions. Majority of the recipients of these treatments are women within the reproductive age group, who...Background: Cervical Intraepithelial neoplasia treatments have become essential interventions to manage cervical lesions. Majority of the recipients of these treatments are women within the reproductive age group, who according to literature may be at risk of adverse pregnancy outcomes. This pilot study is part of a study investigating adverse pregnancy outcomes among women who received Cryotherapy, Thermal ablation and Loop Electrosurgical Excision Procedure compared to the untreated women in Zambia. Materials and Methods: This descriptive study analyzed records of 886 (n = 443 treated and n = 443 untreated) women aged 15 - 49 years. The women were either screened with Visual Inspection with Acetic Acid or treated for Cervical Intraepithelial neoplasia at the Adult Infectious Disease Centre between January 2010 and December 2020. Women meeting the criteria were identified using the Visual Inspection with Acetic Acid screening records and telephone interviews to obtain the adverse pregnancy outcome experienced. Data were analysed using STATA version 16 to determine the prevalence and obtain frequency distribution of outcomes of interest. Univariate and multivariable binary logistic regression estimated odds of adverse pregnancy outcomes across the three treatments. Results: The respondents were aged 15 to 49 years. Adverse pregnancy outcomes were observed to be more prevalent in the treatment group (18.5%) compared to the untreated group (5.4%). Normal pregnancy outcomes were lower in the treated (46.3%;n = 443) than the untreated (53.7%;n = 443). The treated group accounted for the majority of abortions (85.2%), prolonged labour (85.7%) and low birth weight (80%), whereas, the untreated accounted for the majority of still births (72.7%). Women treated with cryotherapy (aOR = 2.43, 95% CI = 1.32 - 4.49, p = 0.004), thermal ablation (aOR = 6.37, 95% CI = 0.99 - 41.2, p = 0.052) and Loop Electrosurgical Excision Procedure (aOR = 9.67, 95% CI = 2.17 - 43.1, p = 0.003) had two-, six- and ten-times higher odds of adverse pregnancy outcomes respectively, relative to women who required no treatment. Conclusion: Adverse pregnancy outcomes are prevalent among women who have received treatment in Zambia. The findings indicate that treating Cervical Intraepithelial Neoplasia has been linked to higher chances of experiencing abortion, delivering low birth weight babies and enduring prolonged labor that may result in a caesarean section delivery. Cervical neoplasia treatments, particularly Loop Electrosurgical Excision Procedure, are associated with significantly increased odds of adverse pregnancy outcomes. It is essential to include information about prior Cervical Intraepithelial neoplasia treatment outcomes in obstetric care.展开更多
Objective:To compare the efficacy of anal adenectomy with virtual hanging wire and anal fistulotomy in the treatment of low anal fistula in infants and children.Methods:60 children with low anal fistula who were admit...Objective:To compare the efficacy of anal adenectomy with virtual hanging wire and anal fistulotomy in the treatment of low anal fistula in infants and children.Methods:60 children with low anal fistula who were admitted to our hospital from October 2021 to March 2022 and met the inclusion criteria were randomly divided into two groups of 30 cases each;the treatment group was treated with anal adenectomy and virtual hanging wire surgery,and the control group was treated with anal fistula resection.The clinical efficacy after treatment was compared.Results:The total effective rate of both groups was 96.67%and the difference between the two groups was not statistically significant(P>0.05).The postoperative pain score of the treatment group was lower than that of the control group(P<0.05).The length of hospitalization and healing time of the treatment group was lower than that of the control group(P<0.05).The anal function of the patients in both groups was normal,and there was no adverse reaction.Conclusion:Anal gland excision and virtual hanging surgery for the treatment of low anal fistula in infants and children have the advantages of mild pain,reduced length of hospitalization,short healing time,and better patient experience as compared to anal fistula excision.展开更多
To ensure the security of resource and intelligence sharing in 6G,blockchain has been widely adopted in wireless communications and applications.Although blockchain can ensure the traceability and non-tamperability of...To ensure the security of resource and intelligence sharing in 6G,blockchain has been widely adopted in wireless communications and applications.Although blockchain can ensure the traceability and non-tamperability of data in the concatenated blocks,it cannot guarantee the honest behaviors of users in the application before the generation of transactions.Thus,additional technologies are required to ensure that the source of blockchain data is reliable.In this paper,the detailed procedure is designed for the application-oriented task validation in the blockchainenhanced computing resource sharing and transactions in ultra dense networks(UDN).The corresponding queuing model is built and analyzed with the consideration of the wireless re-transmission and the probability of malicious deception by users.Based on the analysis results,the UDN deployment is optimized to save network cost while ensuring latency performance.Numerical results verify our analysis,and the optimized system deployment including the number and service capacities of both base stations and mobile edge computing(MEC)servers are also given with various system settings.展开更多
BACKGROUND Rotationplasty is often performed for malignant tumors,but type BIIIb rotationplasty is rarely reported,and there needs to be more evidence of the procedure and treatment.The purpose of this case study was ...BACKGROUND Rotationplasty is often performed for malignant tumors,but type BIIIb rotationplasty is rarely reported,and there needs to be more evidence of the procedure and treatment.The purpose of this case study was to report a new direction in the use of type BIIIb rotationplasty in treating patients with limb salvage and longterm non-healing infections.CASE SUMMARY Case 1:A 47-year-old man underwent radiotherapy for hemangioendothelioma in his left thigh,resulting in a femoral fracture.Despite the use of plates,intramedullary nailing,and external fixators,the femoral bone failed to unite due to infectious nonunion.Multiple operations were unable to control the infection,leaving the patient immobile.We performed a modified tibia-pelvic-constrained hip rotationplasty,utilizing a constrained prosthetic hip between the tibia and pelvis following a femur resection.Two years post-surgery,the patient was able to walk with the prosthetic device without any signs of recurring infection.The corresponding functional scores were 72 points for the Musculoskeletal Tumor Society(MSTS),53 for the Functional Mobility Assessment(FMA),93 for the Toronto Extremity Salvage Score(TESS),and 56 for the MOS 36-item short form health survey(SF-36).Case 2:A 59-year-old woman presented with liposarcoma in her left thigh.Magnetic resonance imaging revealed tumors in the medial,anterior,and posterior femur muscles,encircling the femoral vessels and nerves.Fortunately,there were no symptoms of sciatic dysfunction,and the tumor had not invaded the sciatic nucleus.After one year of follow-up,the patient expressed satisfaction with limb preservation post-type BIIIb rotationplasty.The corresponding functional scores were 63 points for the MSTS,47 for the FMA,88 for the TESS,and 52 for the SF-36.CONCLUSION Our study suggests that type BIIIb rotationplasty may be an alternative to amputation in patients with incurable infections.For malignant tumors of the lower extremities without invasion of the sciatic nerve,type BIIIb rotationplasty remains an excellent alternative to amputation.This surgical method may prevent amputation,improve functional outcomes,and facilitate biological reconstruction.展开更多
BACKGROUND Transmission of severe acute respiratory syndrome coronavirus 2 can occur during aerosol generating procedures.Several steps in spinal fusion may aerosolize blood but little data exists to quantify the risk...BACKGROUND Transmission of severe acute respiratory syndrome coronavirus 2 can occur during aerosol generating procedures.Several steps in spinal fusion may aerosolize blood but little data exists to quantify the risk this may confer upon surgeons.Aerosolized particles containing infectious coronavirus are typically 0.5-8.0μm.AIM To measure the generation of aerosols during spinal fusion using a handheld optical particle sizer(OPS).METHODS We quantified airborne particle counts during five posterior spinal instrumentation and fusions(9/22/2020-10/15/2020)using an OPS near the surgical field.Data were analyzed by 3 particle size groups:0.3-0.5μm/m^(3),1.0-5.0μm/m^(3),and 10.0μm/m^(3).We used hierarchical logistic regression to model the odds of a spike in aerosolized particle counts based on the step in progress.A spike was defined as a>3 standard deviation increase from average baseline levels.RESULTS Upon univariate analysis,bovie(P<0.0001),high speed pneumatic burring(P=0.009),and ultrasonic bone scalpel(P=0.002)were associated with increased 0.3-0.5μm/m^(3)particle counts relative to baseline.Bovie(P<0.0001)and burring(P<0.0001)were also associated with increased 1-5μm/m^(3)and 10μm/m^(3)particle counts.Pedicle drilling was not associated with increased particle counts in any of the size ranges measured.Our logistic regression model demonstrated that bovie(OR=10.2,P<0.001),burring(OR=10.9,P<0.001),and bone scalpel(OR=5.9,P<0.001)had higher odds of a spike in 0.3-0.5μm/m^(3)particle counts.Bovie(OR=2.6,P<0.001),burring(OR=5.8,P<0.001),and bone scalpel(OR=4.3,P=0.005)had higher odds of a spike in 1-5μm/m^(3)particle counts.Bovie(OR=0.3,P<0.001)and drilling(OR=0.2,P=0.011)had significantly lower odds of a spike in 10μm/m^(3)particle counts relative to baseline.CONCLUSION Several steps in spinal fusion are associated with increased airborne particle counts in the aerosol size range.Further research is warranted to determine if such particles have the potential to contain infectious viruses.Previous research has shown that electrocautery smoke may be an inhalation hazard for surgeons but here we show that usage of the bone scalpel and high-speed burr also have the potential to aerosolize blood.展开更多
Traditional Chinese medicine breast massage,also known as breast Tuina or manual expression of breast milk,is a technique of using certain manipulations to act on specific positions or acupoints of the breast to promo...Traditional Chinese medicine breast massage,also known as breast Tuina or manual expression of breast milk,is a technique of using certain manipulations to act on specific positions or acupoints of the breast to promote blood and lymphatic circulation of breast and facilitate the discharge of stagnant milk.This technique is widely used in China to treat breastfeeding problems such as breast engorgement,mastitis,and postpartum hypogalactia.In this article,we introduce the definition and standardization process of breast massage,elaborate the operating procedures of breast massage in detail,and summarize and discuss the current situation of its clinical application,so as to provide a reference for its wide application and in‑depth research.展开更多
Objective To introduce the accession procedure and evaluation of PIC/S,and help relevant departments in China to understand the requirements of PIC/S in detail,and to promote the process of China’s entry into PIC/S.M...Objective To introduce the accession procedure and evaluation of PIC/S,and help relevant departments in China to understand the requirements of PIC/S in detail,and to promote the process of China’s entry into PIC/S.Methods The procedures and steps of joining PIC/S,the evaluation process of PIC/S,and the experience of several countries in joining PIC/S were introduced and analyzed,which could help the relevant personnel in China understand the specific contents.Results and Conclusion According to the requirements of PIC/S,it is necessary to establish a unified GMP quality management system.展开更多
Background:The study aimed to assess the efficacy and safety of dinoprostone vaginal insert in labor induction following optimization of standard operating procedure(SOP)and to discover independent predictors of vagin...Background:The study aimed to assess the efficacy and safety of dinoprostone vaginal insert in labor induction following optimization of standard operating procedure(SOP)and to discover independent predictors of vaginal delivery.Methods:This study comprised 551 pregnant women who required cervical ripening with dinoprostone before induction of labor.Using univariate and multivariate analyses,independent predictors of vaginal delivery were identified.Results:443 of the 551 women(80.4%)gave birth vaginally.Vaginal delivery was predicted by maternal age(24-30 vs.<24,P<0.001;30-35 vs.<24,P=0.03),gestational age(P=0.005),birth weight(P<0.001),parity(P=0.001),pre-pregnancy BMI(P<0.001),premature rupture of membranes(P=0.001),meconium-stained amniotic fluid(P<0.001),fundal height(P<0.001)and the Bishop score(P<0.001).None of the women exhibited severe postpartum hemorrhage.Conclusions:The maternal age,gestational age,birth weight,parity,body mass index,premature membrane rupture,amniotic fluid contamination,fundal height,and the Bishop score were independent predictors of vaginal delivery.These may guide the clinical use of dinoprostone for induction of labor.展开更多
<strong>Introduction:</strong> Bone marrow aspiration and biopsies are carried out principally to permit cytological assessment of marrow. The procedure is also indicated for immunophenotypic, cytogenetic,...<strong>Introduction:</strong> Bone marrow aspiration and biopsies are carried out principally to permit cytological assessment of marrow. The procedure is also indicated for immunophenotypic, cytogenetic, molecular and other specialized investigations. The skill to perform bone marrow aspirate and biopsy is usually acquired by the medical personnel through apprenticeship during their training. The training includes performing the procedure, indications, contraindications, and associated hazards. Moi Teaching and Referral Hospital (MTRH) being a specialized Hospital in Western Kenya has several staff trained on performing the procedure. <strong>Objective:</strong> To assess the performance of bone marrow procedure by clinicians at a teaching and referral hospital. <strong>Materials and </strong><strong>methods: </strong>A descriptive cross-sectional study was done involving 40 clinicians working in the hematology clinic and medical wards from June to December 2019. A structured questionnaire was used to collect the data and data analysis was done using frequency tables. Approval to carry out the study was sought from the institutional IRB. <strong>Results:</strong> Patients attended to were predominantly adults 33 (83%). The superior posterior iliac crest was the commonest site for the procedure and disposable needles were routinely used in 33 (83%) of the patients. Pain and excessive bleeding 18 (45%) were the commonest complications associated with the procedure. <strong>Conclusion:</strong> Most of the clinicians involved doing the procedure were residents/registrars. Most of the patients attended to were adults (83%) and majority of the clinicians performed the procedure on the posterior iliac site (96%) using disposable needles (83%). Local anesthesia was commonly used during the procedure (88%). The common complications associated with the bone marrow procedure were pain and excessive bleeding (45%).展开更多
AIM: To compare the clinical efficacies of two surgical procedures for hemorrhoid rectal prolapse with outlet obstruction-induced constipation.METHODS: One hundred eight inpatients who underwent surgery for outlet obs...AIM: To compare the clinical efficacies of two surgical procedures for hemorrhoid rectal prolapse with outlet obstruction-induced constipation.METHODS: One hundred eight inpatients who underwent surgery for outlet obstructive constipation caused by internal rectal prolapse and circumferential hemorrhoids at the First Affiliated Hospital of Xinjiang Medical University from June 2012 to June 2013 were prospectively included in the study.The patients with rectal prolapse hemorrhoids with outlet obstructioninduced constipation were randomly divided into two groups to undergo either a procedure for prolapse and hemorrhoids(PPH)(n = 54) or conventional surgery(n = 54; control group).Short-term(operative time,postoperative hospital stay,postoperative urinary retention,postoperative perianal edema,and postoperative pain) and long-term(postoperative anal stenosis,postoperative sensory anal incontinence,postoperative recurrence,and postoperative difficulty in defecation) clinical effects were compared between the two groups.The short- and long-term efficacies of the two procedures were determined.RESULTS: In terms of short-term clinical effects,operative time and postoperative hospital stay were significantly shorter in the PPH group than in the control group(24.36 ± 5.16 min vs 44.27 ± 6.57 min,2.1 ± 1.4 d vs 3.6 ± 2.3 d,both P < 0.01).The incidence of postoperative urinary retention was higher in the PPH group than in the control group,but the difference was not statistically significant(48.15% vs 37.04%).Theincidence of perianal edema was significantly lower in the PPH group(11.11% vs 42.60%,P < 0.05).The visual analogue scale scores at 24 h after surgery,first defecation,and one week after surgery were significantly lower in the PPH group(2.9 ± 0.9 vs 8.3 ± 1.1,2.0 ± 0.5 vs 6.5 ± 0.8,and 1.7 ± 0.5 vs 5.0 ± 0.7,respectively,all P < 0.01).With regard to long-term clinical effects,the incidence of anal stenosis was lower in the PPH group than in the control group,but the difference was not significant(1.85% vs 5.56%).The incidence of sensory anal incontinence was significantly lower in the PPH group(3.70% vs 12.96%,P < 0.05).The incidences of recurrent internal rectal prolapse and difficulty in defecation were lower in the PPH group than in the control group,but the differences were not significant(11.11% vs 16.67% and 12.96% vs 24.07%,respectively).CONCLUSION: PPH is superior to the traditional surgery in the management of outlet obstructive constipation caused by internal rectal prolapse with circumferential hemorrhoids.展开更多
Endoscopic submucosal dissection (ESD) is efficient for en bloc resection of large colorectal tumors. However, it has several technical difficulties, because the wall of the colon is thin and due to the winding nature...Endoscopic submucosal dissection (ESD) is efficient for en bloc resection of large colorectal tumors. However, it has several technical difficulties, because the wall of the colon is thin and due to the winding nature of the colon. The main complications of ESD comprise postoperative perforation and hemorrhage, similar to endoscopic mucosal resection (EMR). In particular, the rate of perforation in ESD is higher than that in EMR. Perforation of the colon can cause fatal peritonitis. Endoscopic clipping is reported to be an efficient therapy for perforation. Most cases with perforation are treated conservatively without urgent surgical intervention. However, the rate of postoperative hemorrhage in ESD is similar to that in EMR. Endoscopic therapy including endoscopic clipping is performed and most of the cases are treated conservatively without blood transfusion. In blood examination, some degree of inflammation is detected after ESD. For the standardization of ESD, it is most important to decrease the rate of perforation. Adopting a safe strategy for ESD and a suitable choice of knife are both important waysof preventing perforation. Moreover, appropriate training and increasing experience can improve the endoscopic technique and can decrease the rate of perforation. In this review, we describe safe procedures in ESD to prevent complications, the complications of ESD and their management.展开更多
AIM: To share our experience regarding the laparoscopic Frey procedure for chronic pancreatitis(CP) and patient selection.METHODS: All consecutive patients undergoingduodenum-preserving pancreatic head resection from ...AIM: To share our experience regarding the laparoscopic Frey procedure for chronic pancreatitis(CP) and patient selection.METHODS: All consecutive patients undergoingduodenum-preserving pancreatic head resection from July 2013 to July 2014 were reviewed and those undergoing the Frey procedure for CP were included in this study. Data on age, gender, body mass index(BMI), American Society of Anesthesiologists score, imaging findings, inflammatory index(white blood cells, interleukin(IL)-6, and C-reaction protein), visual analogue score score during hospitalization and outpatient visit, history of CP, operative time, estimated blood loss, and postoperative data(postoperative mortality and morbidity, postoperative length of hospital stay) were obtained for patients undergoing laparoscopic surgery. The open surgery cases in this study were analyzed for risk factors related to extensive bleeding, which was the major reason for conversion during the laparoscopic procedure. Age, gender, etiology, imaging findings, amylase level, complications due to pancreatitis, functional insufficiency, and history of CP were assessed in these patients.RESULTS: Nine laparoscopic and 37 open Frey procedures were analyzed. Of the 46 patients, 39 were male(85%) and seven were female(16%). The etiology of CP was alcohol in 32 patients(70%) and idiopathic in 14 patients(30%). Stones were found in 38 patients(83%). An inflammatory mass was found in five patients(11%). The time from diagnosis of CP to the Frey procedure was 39 ± 19(9-85) mo. The BMI of patients in the laparoscopic group was 20.4 ± 1.7(17.8-22.4) kg/m2 and was 20.6 ± 2.9(15.4-27.7) kg/m2 in the opengroup. Allpatientsrequired analgesic medication for abdominal pain. Frequent acute pancreatitis or severe abdominal pain due to acute exacerbation occurred in 20 patients(43%). Pre-operative complications due to pancreatitis were observed in 18 patients(39%). Pancreatic functional insufficiency was observed in 14 patients(30%). Two laparoscopic patients(2/9) were converted. In seven successful laparoscopic cases, the mean operative time was 323 ± 29(290-370) min. Estimated intra-operativeblood loss was 57 ± 14(40-80) m L. One patient had a postoperative complication, and no mortality was observed. Postoperative hospital stay was 7 ± 2(5-11) d. Multiple linear regression analysis of 37 open Frey procedures showed that an inflammatory mass(P < 0.001) and acute exacerbation(P < 0.001) were risk factors for intra-operative blood loss. CONCLUSION: The laparoscopic Frey procedure for CP is feasible but only suitable in carefully selected patients.展开更多
BACKGROUND: Portal hypertension is a common diseasewith a high mortality and serious effect on the life quality ofpatients. Presently, shunt and disconnection are commonlyused for surgical treatment of portal hyperten...BACKGROUND: Portal hypertension is a common diseasewith a high mortality and serious effect on the life quality ofpatients. Presently, shunt and disconnection are commonlyused for surgical treatment of portal hypertension. The aimof this study was conducted to analyze the results of a modi-fied Sugiura procedure for the management of 160 cirrhoticpatients with portal hypertension.METHODS: The results of a modified Sugiura procedurefor the treatment of 160 cirrhotic patients with portal hyper-tension from January 1991 to July 2002 were retrospectivelyanalyzed.RESULTS: The operative mortality for the procedure waszero. Postoperative intra-abdominal bleeding was noted in2 patients, drowned lung in 1, pneumonia in 1, and splenicvenous thrombosis in 4. Of the 160 patients, 157 (98%)were followed up from 6 months to 11.5 years. Of the 157patients, only one died of hepatic coma 6 years after opera-tion, and 3 of rebleeding. The absolute and relative survivalrates were 97.5% (156/160) and 99% (159/160), respective-ly. The absolute and relative occurrence rates of hepatic co-ma were 2.5% (4/160) and 0.6% (1/157), respectively. Theabsolute and relative occurrence rates of rebleeding were3.8% (6/160) and 1.9% (3/157) , respectively. In 96 of 116Child B patients (82.8%), liver function improved frompreoperative class B to A 3 months after operation. Sixty-five patients were subjected to gastroscopy and 22 patients,esophageal barium photography 6 months after operation.Gastro-esophageal varices disappeared in 56 patients(64.4%, 56/87), obviously improved in 30 (34.5%, 30/87),and unchanged in 1 (1.2%, 1/87). The occurrence rate ofportal hypertensive gastropathy (PHG) was 13.9% (9/65).CONCLUSION: Our results showed that the modifiedSugiura procedure is effective in the treatment of portal hy-pertension, with a low rate of operative complication,bleeding recurrence, and hepatic coma.展开更多
BACKGROUND:The Frey procedure(FP)is the treatment of choice for symptomatic chronic pancreatitis(CP).In cases of biliary stricture,biliary derivation can be performed by choledochoduodenostomy,Roux-en-Y choledochojeju...BACKGROUND:The Frey procedure(FP)is the treatment of choice for symptomatic chronic pancreatitis(CP).In cases of biliary stricture,biliary derivation can be performed by choledochoduodenostomy,Roux-en-Y choledochojejunostomy or,more recently,reinsertion of the common bile duct(CBD)into the resection cavity.The objective of the present study was to evaluate the outcomes associated with each of these three types of biliary derivation.METHODS:We retrospectively analyzed demographic,CPrelated,surgical and follow-up data for patients having undergone FP for CP with biliary derivation between 2004and 2012 in our university medical center.The primary efficacy endpoint was the rate of CBD stricture recurrence.The secondary endpoints were surgical parameters,postoperative complications,postoperative follow-up and the presence of risk factors for secondary CBD stricture.RESULTS:Eighty patients underwent surgery for CP during the study period.Of these,15 patients received biliary derivation with the FP.Eight of the FPs(53.3%)were combined with choledochoduodenostomy,4(26.7%)with choledochojejunostomy and 3(20.0%)with reinsertion of the CBD into the resection cavity.The mean operating time was 390minutes.Eleven complications(73.3%)were recorded,including one major complication(6.7%)that necessitated radiologicallyguided drainage of an abdominal collection.The mean(range)length of stay was 17 days(8-28)and the median(range)follow-up time was 35.2 months(7.2-95.4).Two patients presented stricture after CBD reinsertion into the resection cavity;one was treated with radiologically-guided dilatation and the other underwent revisional Roux-en-Y choledochojejunostomy.Three patients presented alkaline reflux gastritis(37.5%),one(12.5%)cholangitis and one CBD stricture after FP with choledochoduodenostomy.No risk factors for secondary CBD stricture were identified.CONCLUSIONS:As part of a biliary derivation,the FP gave good results.We did not observe any complications specifically related to surgical treatment of the biliary tract.However,CBD reinsertion into the resection cavity appeared to be associated with a higher stricture recurrence rate.In our experience,choledochojejunostomy remains the"gold standard"for the surgical treatment for CBD strictures.展开更多
BACKGROUND Hemorrhoidal prolapse is a common benign disease with a high incidence.The treatment procedure for prolapse and hemorrhoids(PPH)remains an operative method used for internal hemorrhoid prolapse.Although it ...BACKGROUND Hemorrhoidal prolapse is a common benign disease with a high incidence.The treatment procedure for prolapse and hemorrhoids(PPH)remains an operative method used for internal hemorrhoid prolapse.Although it is related to less posoperative pain,faster recovery and shorter hospital stays,the postoperative recurrence rate is higher than that of the Milligan-Morgan hemorrhoidectomy(MMH).We have considered that recurrence could be due to shortage of the pulling-up effect.This issue may be overcome by using lower purse-string sutures[modified-PPH(M-PPH)].AIM To compare the therapeutic effects and the patients’satisfaction after M-PPH,PPH and MMH.METHODS This retrospective cohort study included 1163 patients(M-PPH,461;original PPH,321;MMH,381)with severe hemorrhoids(stage III/IV)who were admitted to The 2nd Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University from 2012 to 2014.Early postoperative complications,efficacy,postoperative anal dysfunction and patient satisfaction were compared among the three groups.Established criteria were used to assess short-and long-term postoperative complications.A visual analog scale was used to evaluate postoperative pain.Follow-up was conducted 5 years postoperatively.RESULT Length of hospital stay and operating time were significantly longer in the MMH group(8.05±2.50 d,19.98±4.21 min;P<0.0001)than in other groups.The incidence of postoperative anastomotic bleeding was significantly lower after MPPH than after PPH or MMH(1.9%,5.1%and 3.7%;n=9,16 and 14;respectively).There was a significantly higher rate of sensation of rectal tenesmus after M-PPH than after MMH or PPH(15%,8%and 10%;n=69,30 and 32;respectively).There was a significantly lower rate of recurrence after M-PPH than after PPH(8.7%and 18.8%,n=40 and 61;P<0.0001).The incidence of postoperative anal incontinence differed significantly only between the MMH and M-PPH groups(1.3%and 4.3%,n=5 and 20;P=0.04).Patient satisfaction was significantly greater after M-PPH than after other surgeries.CONCLUSION M-PPH has many advantages for severe hemorrhoids(Goligher stage III/IV),with a low rate of anastomotic bleeding and recurrence and a very high rate of patient satisfaction.展开更多
There is still significant debate regarding the best surgical treatment for malignant left-sided large bowel obstruction.Primary resection and anastomosis offers the advantages of a definite procedure without need for...There is still significant debate regarding the best surgical treatment for malignant left-sided large bowel obstruction.Primary resection and anastomosis offers the advantages of a definite procedure without need for further surgery.Its main disadvantages are related to the increased technical challenge and to the potential higher risk of anastomotic leakage that occurs in the emergency setting.Primary resection with end colostomy(Hartmann's procedure) is considered the safer option.Tan et al compared in a systematic review and meta-analysis the use of self-expanding metallic stents(SEMS) as a bridge to surgery vs emergency surgery in the management of acute malignant left-sided large bowel obstruction.The authors concluded that the technical and clinical success rates for stenting were lower than expected.SEMS was associated with a high incidence of clinical and silent perforation.Stenting instead of loop colostomy can be recommended only if the appropriate expertise is available in the hospital.The goal of stenting,a decrease of the stoma rate,may be advocated only if the complication rates of stenting are lower than those of stoma creation in the emergency situation.Until now,this was not demonstrated in a prospective randomized trial.展开更多
Fracture assessment of the cracked structures is essential to avoiding fracture failure.A number of fracture assessment procedures have been proposed for various steel structures.However,the studies about the applicat...Fracture assessment of the cracked structures is essential to avoiding fracture failure.A number of fracture assessment procedures have been proposed for various steel structures.However,the studies about the application of available procedures for titanium alloy structures are scarcely reported.Fracture assessment for the electron beam(EB) welded thick-walled damage tolerant Ti-6Al-4V(TC4-DT) alloy is performed by the fitness-for-service(FFS) FITNET procedure.Uniaxial tensile tests and fracture assessment tests of the base metal and weld metal are carried out to obtain the input information of assessment.The standard options and advanced options of FITNET FFS procedure are used to the fracture assessment of the present material.Moreover,the predicted maximum loads of compact tensile specimen using FITNET FFS procedure are verified with the experimental data of fracture assessment tests.As a result,it is shown that the mechanical properties of weld metal are inhomogeneous along the weld depth.The mismatch ratio M is less than 10% at the weld top and middle,whereas more than 10% at the weld bottom.Failure assessment lines of standard options are close to that of advanced option,which means that the standard options are suitable for fracture assessment of the present welds.The accurate estimation of the maximum loads has been obtained by fracture assessment of standard options with error less than 6%.Furthermore,there are no potential advantages of applying higher options or mismatch options.Thus,the present welded joints can be treated as homogeneous material during the fracture assessment,and standard option 1 can be used to achieve accurate enough results.This research provides the engineering treatment methods for the fracture assessment of titanium alloy and its EB welds.展开更多
Objective: To evaluate the procedures and timing ofoperation as well as long-term postoperative effect ofcongenital choledochal cysts (CCC) in adults.Methods: The procedures and timing of operation,effective rate, re-...Objective: To evaluate the procedures and timing ofoperation as well as long-term postoperative effect ofcongenital choledochal cysts (CCC) in adults.Methods: The procedures and timing of operation,effective rate, re-operation rate and incidence of car-cinoma after operation for 70 adult patients withCCC from January 1980 to June 1999 were analyzedretrospectively.Results: The re-operation rate of external drainagewas 86% (6/7). The effective rate of internal drain-age was significantly lower than that of cyst resection(3/10 vs 45/49, X^2=20. 94, P【0.001). The re-op-eration rate and incidence of carcinoma of internaldrainage were higher than those of cyst resection (5/10 vs 3/49, X^2=13. 64, P【0. 001 and 3/10 vs 3/49,X^2=5. 18, P【0. 025). The reoperation rate of e-mergency surgery was higher than that of selectiveoperation (8/10 vs 6/56, X^2=24. 37, P【0.001).Conclusions: External drainage should be the first-aid measure and the therapy of choice on emergencybasis. Internal drainage should never be attempted.Cyst resection with Roux-en-Y hepaticojejunostomy isrecommended as the treatment of choice in selectiveoperation.展开更多
BACKGROUND Obstructed defecation syndrome(ODS) is a widespread disease in the world.Rectocele is the most common cause of ODS in females. Multiple procedures have been performed to treat rectocele and no procedure has...BACKGROUND Obstructed defecation syndrome(ODS) is a widespread disease in the world.Rectocele is the most common cause of ODS in females. Multiple procedures have been performed to treat rectocele and no procedure has been accepted as the gold-standard procedure. Stapled transanal rectal resection(STARR) has been widely used. However, there are still some disadvantages in this procedure and its effectiveness in anterior wall repair is doubtful. Therefore, new procedures are expected to further improve the treatment of rectocele.AIM To evaluate the efficacy and safety of a novel rectocele repair combining Khubchandani's procedure with stapled posterior rectal wall resection.METHODS A cohort of 93 patients were recruited in our randomized clinical trial and were divided into two different groups in a randomized manner. Forty-two patients(group A) underwent Khubchandani's procedure with stapled posterior rectal wall resection and 51 patients(group B) underwent the STARR procedure.Follow-up was performed at 1, 3, 6, and 12 mo after the operation. Preoperative and postoperative ODS scores and depth of rectocele, postoperative complications, blood loss, and hospital stay of each patient were documented. All data were analyzed statistically to evaluate the efficiency and safety of our procedure.RESULTS In group A, 42 patients underwent Khubchandani's procedure with stapled posterior rectal wall resection and 34 were followed until the final analysis. In group B, 51 patients underwent the STARR procedure and 37 were followed until the final analysis. Mean operative duration was 41.47 ± 6.43 min(group A) vs39.24 ± 6.53 min(group B). Mean hospital stay was 3.15 ± 0.70 d(group A) vs 3.14± 0.54 d(group B). Mean blood loss was 10.91 ± 2.52 mL(group A) vs 10.14 ± 1.86 m L(group B). Mean ODS score in group A declined from 16.50 ± 2.06 before operation to 5.06 ± 1.07 one year after the operation, whereas in group B it was17.11 ± 2.57 before operation and 6.03 ± 2.63 one year after the operation. Mean depth of rectocele decreased from 4.32 ± 0.96 cm(group A) vs 4.18 ± 0.95 cm(group B) preoperatively to 1.19 ± 0.43 cm(group A) vs 1.54 ± 0.82 cm(group B)one year after operation. No other serious complications, such as rectovaginal fistula, perianal sepsis, or deaths, were recorded. After 12 mo of follow-up, 30 patients'(30/34, 88.2%) final outcomes were judged as effective and 4(4/34,11.8%) as moderate in group A, whereas in group B, 30(30/37, 81.1%) patients' outcomes were judged as effective, 5(5/37, 13.5%) as moderate, and 2(2/37,5.4%) as poor.CONCLUSION Khubchandani's procedure combined with stapled posterior rectal wall resection is an effective, feasible, and safe procedure with minor trauma to rectocele.展开更多
Acute sensorineural hearing loss is an uncommon phenomenon in dentistry.We describe the case of a 79-year-old male who presented with acute sensorineural hearing loss occurring 2 days after a tooth extraction procedur...Acute sensorineural hearing loss is an uncommon phenomenon in dentistry.We describe the case of a 79-year-old male who presented with acute sensorineural hearing loss occurring 2 days after a tooth extraction procedure under local anesthesia.Possible mechanisms are discussed.He was treated with vasodilators(Ginaton and Alprostadil Injection)and Mecobalamin injection with benefit.High dose oral steroids(1 mg/kg)and low molecular weight dextran were used.展开更多
文摘Background: Cervical Intraepithelial neoplasia treatments have become essential interventions to manage cervical lesions. Majority of the recipients of these treatments are women within the reproductive age group, who according to literature may be at risk of adverse pregnancy outcomes. This pilot study is part of a study investigating adverse pregnancy outcomes among women who received Cryotherapy, Thermal ablation and Loop Electrosurgical Excision Procedure compared to the untreated women in Zambia. Materials and Methods: This descriptive study analyzed records of 886 (n = 443 treated and n = 443 untreated) women aged 15 - 49 years. The women were either screened with Visual Inspection with Acetic Acid or treated for Cervical Intraepithelial neoplasia at the Adult Infectious Disease Centre between January 2010 and December 2020. Women meeting the criteria were identified using the Visual Inspection with Acetic Acid screening records and telephone interviews to obtain the adverse pregnancy outcome experienced. Data were analysed using STATA version 16 to determine the prevalence and obtain frequency distribution of outcomes of interest. Univariate and multivariable binary logistic regression estimated odds of adverse pregnancy outcomes across the three treatments. Results: The respondents were aged 15 to 49 years. Adverse pregnancy outcomes were observed to be more prevalent in the treatment group (18.5%) compared to the untreated group (5.4%). Normal pregnancy outcomes were lower in the treated (46.3%;n = 443) than the untreated (53.7%;n = 443). The treated group accounted for the majority of abortions (85.2%), prolonged labour (85.7%) and low birth weight (80%), whereas, the untreated accounted for the majority of still births (72.7%). Women treated with cryotherapy (aOR = 2.43, 95% CI = 1.32 - 4.49, p = 0.004), thermal ablation (aOR = 6.37, 95% CI = 0.99 - 41.2, p = 0.052) and Loop Electrosurgical Excision Procedure (aOR = 9.67, 95% CI = 2.17 - 43.1, p = 0.003) had two-, six- and ten-times higher odds of adverse pregnancy outcomes respectively, relative to women who required no treatment. Conclusion: Adverse pregnancy outcomes are prevalent among women who have received treatment in Zambia. The findings indicate that treating Cervical Intraepithelial Neoplasia has been linked to higher chances of experiencing abortion, delivering low birth weight babies and enduring prolonged labor that may result in a caesarean section delivery. Cervical neoplasia treatments, particularly Loop Electrosurgical Excision Procedure, are associated with significantly increased odds of adverse pregnancy outcomes. It is essential to include information about prior Cervical Intraepithelial neoplasia treatment outcomes in obstetric care.
基金Xi’an Municipal Bureau of Science and Technology,No.21YXYJ0060。
文摘Objective:To compare the efficacy of anal adenectomy with virtual hanging wire and anal fistulotomy in the treatment of low anal fistula in infants and children.Methods:60 children with low anal fistula who were admitted to our hospital from October 2021 to March 2022 and met the inclusion criteria were randomly divided into two groups of 30 cases each;the treatment group was treated with anal adenectomy and virtual hanging wire surgery,and the control group was treated with anal fistula resection.The clinical efficacy after treatment was compared.Results:The total effective rate of both groups was 96.67%and the difference between the two groups was not statistically significant(P>0.05).The postoperative pain score of the treatment group was lower than that of the control group(P<0.05).The length of hospitalization and healing time of the treatment group was lower than that of the control group(P<0.05).The anal function of the patients in both groups was normal,and there was no adverse reaction.Conclusion:Anal gland excision and virtual hanging surgery for the treatment of low anal fistula in infants and children have the advantages of mild pain,reduced length of hospitalization,short healing time,and better patient experience as compared to anal fistula excision.
文摘To ensure the security of resource and intelligence sharing in 6G,blockchain has been widely adopted in wireless communications and applications.Although blockchain can ensure the traceability and non-tamperability of data in the concatenated blocks,it cannot guarantee the honest behaviors of users in the application before the generation of transactions.Thus,additional technologies are required to ensure that the source of blockchain data is reliable.In this paper,the detailed procedure is designed for the application-oriented task validation in the blockchainenhanced computing resource sharing and transactions in ultra dense networks(UDN).The corresponding queuing model is built and analyzed with the consideration of the wireless re-transmission and the probability of malicious deception by users.Based on the analysis results,the UDN deployment is optimized to save network cost while ensuring latency performance.Numerical results verify our analysis,and the optimized system deployment including the number and service capacities of both base stations and mobile edge computing(MEC)servers are also given with various system settings.
基金Supported by the Army Logistics Scientific Research Projects,No.CNJ16C013.
文摘BACKGROUND Rotationplasty is often performed for malignant tumors,but type BIIIb rotationplasty is rarely reported,and there needs to be more evidence of the procedure and treatment.The purpose of this case study was to report a new direction in the use of type BIIIb rotationplasty in treating patients with limb salvage and longterm non-healing infections.CASE SUMMARY Case 1:A 47-year-old man underwent radiotherapy for hemangioendothelioma in his left thigh,resulting in a femoral fracture.Despite the use of plates,intramedullary nailing,and external fixators,the femoral bone failed to unite due to infectious nonunion.Multiple operations were unable to control the infection,leaving the patient immobile.We performed a modified tibia-pelvic-constrained hip rotationplasty,utilizing a constrained prosthetic hip between the tibia and pelvis following a femur resection.Two years post-surgery,the patient was able to walk with the prosthetic device without any signs of recurring infection.The corresponding functional scores were 72 points for the Musculoskeletal Tumor Society(MSTS),53 for the Functional Mobility Assessment(FMA),93 for the Toronto Extremity Salvage Score(TESS),and 56 for the MOS 36-item short form health survey(SF-36).Case 2:A 59-year-old woman presented with liposarcoma in her left thigh.Magnetic resonance imaging revealed tumors in the medial,anterior,and posterior femur muscles,encircling the femoral vessels and nerves.Fortunately,there were no symptoms of sciatic dysfunction,and the tumor had not invaded the sciatic nucleus.After one year of follow-up,the patient expressed satisfaction with limb preservation post-type BIIIb rotationplasty.The corresponding functional scores were 63 points for the MSTS,47 for the FMA,88 for the TESS,and 52 for the SF-36.CONCLUSION Our study suggests that type BIIIb rotationplasty may be an alternative to amputation in patients with incurable infections.For malignant tumors of the lower extremities without invasion of the sciatic nerve,type BIIIb rotationplasty remains an excellent alternative to amputation.This surgical method may prevent amputation,improve functional outcomes,and facilitate biological reconstruction.
文摘BACKGROUND Transmission of severe acute respiratory syndrome coronavirus 2 can occur during aerosol generating procedures.Several steps in spinal fusion may aerosolize blood but little data exists to quantify the risk this may confer upon surgeons.Aerosolized particles containing infectious coronavirus are typically 0.5-8.0μm.AIM To measure the generation of aerosols during spinal fusion using a handheld optical particle sizer(OPS).METHODS We quantified airborne particle counts during five posterior spinal instrumentation and fusions(9/22/2020-10/15/2020)using an OPS near the surgical field.Data were analyzed by 3 particle size groups:0.3-0.5μm/m^(3),1.0-5.0μm/m^(3),and 10.0μm/m^(3).We used hierarchical logistic regression to model the odds of a spike in aerosolized particle counts based on the step in progress.A spike was defined as a>3 standard deviation increase from average baseline levels.RESULTS Upon univariate analysis,bovie(P<0.0001),high speed pneumatic burring(P=0.009),and ultrasonic bone scalpel(P=0.002)were associated with increased 0.3-0.5μm/m^(3)particle counts relative to baseline.Bovie(P<0.0001)and burring(P<0.0001)were also associated with increased 1-5μm/m^(3)and 10μm/m^(3)particle counts.Pedicle drilling was not associated with increased particle counts in any of the size ranges measured.Our logistic regression model demonstrated that bovie(OR=10.2,P<0.001),burring(OR=10.9,P<0.001),and bone scalpel(OR=5.9,P<0.001)had higher odds of a spike in 0.3-0.5μm/m^(3)particle counts.Bovie(OR=2.6,P<0.001),burring(OR=5.8,P<0.001),and bone scalpel(OR=4.3,P=0.005)had higher odds of a spike in 1-5μm/m^(3)particle counts.Bovie(OR=0.3,P<0.001)and drilling(OR=0.2,P=0.011)had significantly lower odds of a spike in 10μm/m^(3)particle counts relative to baseline.CONCLUSION Several steps in spinal fusion are associated with increased airborne particle counts in the aerosol size range.Further research is warranted to determine if such particles have the potential to contain infectious viruses.Previous research has shown that electrocautery smoke may be an inhalation hazard for surgeons but here we show that usage of the bone scalpel and high-speed burr also have the potential to aerosolize blood.
文摘Traditional Chinese medicine breast massage,also known as breast Tuina or manual expression of breast milk,is a technique of using certain manipulations to act on specific positions or acupoints of the breast to promote blood and lymphatic circulation of breast and facilitate the discharge of stagnant milk.This technique is widely used in China to treat breastfeeding problems such as breast engorgement,mastitis,and postpartum hypogalactia.In this article,we introduce the definition and standardization process of breast massage,elaborate the operating procedures of breast massage in detail,and summarize and discuss the current situation of its clinical application,so as to provide a reference for its wide application and in‑depth research.
文摘Objective To introduce the accession procedure and evaluation of PIC/S,and help relevant departments in China to understand the requirements of PIC/S in detail,and to promote the process of China’s entry into PIC/S.Methods The procedures and steps of joining PIC/S,the evaluation process of PIC/S,and the experience of several countries in joining PIC/S were introduced and analyzed,which could help the relevant personnel in China understand the specific contents.Results and Conclusion According to the requirements of PIC/S,it is necessary to establish a unified GMP quality management system.
文摘Background:The study aimed to assess the efficacy and safety of dinoprostone vaginal insert in labor induction following optimization of standard operating procedure(SOP)and to discover independent predictors of vaginal delivery.Methods:This study comprised 551 pregnant women who required cervical ripening with dinoprostone before induction of labor.Using univariate and multivariate analyses,independent predictors of vaginal delivery were identified.Results:443 of the 551 women(80.4%)gave birth vaginally.Vaginal delivery was predicted by maternal age(24-30 vs.<24,P<0.001;30-35 vs.<24,P=0.03),gestational age(P=0.005),birth weight(P<0.001),parity(P=0.001),pre-pregnancy BMI(P<0.001),premature rupture of membranes(P=0.001),meconium-stained amniotic fluid(P<0.001),fundal height(P<0.001)and the Bishop score(P<0.001).None of the women exhibited severe postpartum hemorrhage.Conclusions:The maternal age,gestational age,birth weight,parity,body mass index,premature membrane rupture,amniotic fluid contamination,fundal height,and the Bishop score were independent predictors of vaginal delivery.These may guide the clinical use of dinoprostone for induction of labor.
文摘<strong>Introduction:</strong> Bone marrow aspiration and biopsies are carried out principally to permit cytological assessment of marrow. The procedure is also indicated for immunophenotypic, cytogenetic, molecular and other specialized investigations. The skill to perform bone marrow aspirate and biopsy is usually acquired by the medical personnel through apprenticeship during their training. The training includes performing the procedure, indications, contraindications, and associated hazards. Moi Teaching and Referral Hospital (MTRH) being a specialized Hospital in Western Kenya has several staff trained on performing the procedure. <strong>Objective:</strong> To assess the performance of bone marrow procedure by clinicians at a teaching and referral hospital. <strong>Materials and </strong><strong>methods: </strong>A descriptive cross-sectional study was done involving 40 clinicians working in the hematology clinic and medical wards from June to December 2019. A structured questionnaire was used to collect the data and data analysis was done using frequency tables. Approval to carry out the study was sought from the institutional IRB. <strong>Results:</strong> Patients attended to were predominantly adults 33 (83%). The superior posterior iliac crest was the commonest site for the procedure and disposable needles were routinely used in 33 (83%) of the patients. Pain and excessive bleeding 18 (45%) were the commonest complications associated with the procedure. <strong>Conclusion:</strong> Most of the clinicians involved doing the procedure were residents/registrars. Most of the patients attended to were adults (83%) and majority of the clinicians performed the procedure on the posterior iliac site (96%) using disposable needles (83%). Local anesthesia was commonly used during the procedure (88%). The common complications associated with the bone marrow procedure were pain and excessive bleeding (45%).
文摘AIM: To compare the clinical efficacies of two surgical procedures for hemorrhoid rectal prolapse with outlet obstruction-induced constipation.METHODS: One hundred eight inpatients who underwent surgery for outlet obstructive constipation caused by internal rectal prolapse and circumferential hemorrhoids at the First Affiliated Hospital of Xinjiang Medical University from June 2012 to June 2013 were prospectively included in the study.The patients with rectal prolapse hemorrhoids with outlet obstructioninduced constipation were randomly divided into two groups to undergo either a procedure for prolapse and hemorrhoids(PPH)(n = 54) or conventional surgery(n = 54; control group).Short-term(operative time,postoperative hospital stay,postoperative urinary retention,postoperative perianal edema,and postoperative pain) and long-term(postoperative anal stenosis,postoperative sensory anal incontinence,postoperative recurrence,and postoperative difficulty in defecation) clinical effects were compared between the two groups.The short- and long-term efficacies of the two procedures were determined.RESULTS: In terms of short-term clinical effects,operative time and postoperative hospital stay were significantly shorter in the PPH group than in the control group(24.36 ± 5.16 min vs 44.27 ± 6.57 min,2.1 ± 1.4 d vs 3.6 ± 2.3 d,both P < 0.01).The incidence of postoperative urinary retention was higher in the PPH group than in the control group,but the difference was not statistically significant(48.15% vs 37.04%).Theincidence of perianal edema was significantly lower in the PPH group(11.11% vs 42.60%,P < 0.05).The visual analogue scale scores at 24 h after surgery,first defecation,and one week after surgery were significantly lower in the PPH group(2.9 ± 0.9 vs 8.3 ± 1.1,2.0 ± 0.5 vs 6.5 ± 0.8,and 1.7 ± 0.5 vs 5.0 ± 0.7,respectively,all P < 0.01).With regard to long-term clinical effects,the incidence of anal stenosis was lower in the PPH group than in the control group,but the difference was not significant(1.85% vs 5.56%).The incidence of sensory anal incontinence was significantly lower in the PPH group(3.70% vs 12.96%,P < 0.05).The incidences of recurrent internal rectal prolapse and difficulty in defecation were lower in the PPH group than in the control group,but the differences were not significant(11.11% vs 16.67% and 12.96% vs 24.07%,respectively).CONCLUSION: PPH is superior to the traditional surgery in the management of outlet obstructive constipation caused by internal rectal prolapse with circumferential hemorrhoids.
文摘Endoscopic submucosal dissection (ESD) is efficient for en bloc resection of large colorectal tumors. However, it has several technical difficulties, because the wall of the colon is thin and due to the winding nature of the colon. The main complications of ESD comprise postoperative perforation and hemorrhage, similar to endoscopic mucosal resection (EMR). In particular, the rate of perforation in ESD is higher than that in EMR. Perforation of the colon can cause fatal peritonitis. Endoscopic clipping is reported to be an efficient therapy for perforation. Most cases with perforation are treated conservatively without urgent surgical intervention. However, the rate of postoperative hemorrhage in ESD is similar to that in EMR. Endoscopic therapy including endoscopic clipping is performed and most of the cases are treated conservatively without blood transfusion. In blood examination, some degree of inflammation is detected after ESD. For the standardization of ESD, it is most important to decrease the rate of perforation. Adopting a safe strategy for ESD and a suitable choice of knife are both important waysof preventing perforation. Moreover, appropriate training and increasing experience can improve the endoscopic technique and can decrease the rate of perforation. In this review, we describe safe procedures in ESD to prevent complications, the complications of ESD and their management.
文摘AIM: To share our experience regarding the laparoscopic Frey procedure for chronic pancreatitis(CP) and patient selection.METHODS: All consecutive patients undergoingduodenum-preserving pancreatic head resection from July 2013 to July 2014 were reviewed and those undergoing the Frey procedure for CP were included in this study. Data on age, gender, body mass index(BMI), American Society of Anesthesiologists score, imaging findings, inflammatory index(white blood cells, interleukin(IL)-6, and C-reaction protein), visual analogue score score during hospitalization and outpatient visit, history of CP, operative time, estimated blood loss, and postoperative data(postoperative mortality and morbidity, postoperative length of hospital stay) were obtained for patients undergoing laparoscopic surgery. The open surgery cases in this study were analyzed for risk factors related to extensive bleeding, which was the major reason for conversion during the laparoscopic procedure. Age, gender, etiology, imaging findings, amylase level, complications due to pancreatitis, functional insufficiency, and history of CP were assessed in these patients.RESULTS: Nine laparoscopic and 37 open Frey procedures were analyzed. Of the 46 patients, 39 were male(85%) and seven were female(16%). The etiology of CP was alcohol in 32 patients(70%) and idiopathic in 14 patients(30%). Stones were found in 38 patients(83%). An inflammatory mass was found in five patients(11%). The time from diagnosis of CP to the Frey procedure was 39 ± 19(9-85) mo. The BMI of patients in the laparoscopic group was 20.4 ± 1.7(17.8-22.4) kg/m2 and was 20.6 ± 2.9(15.4-27.7) kg/m2 in the opengroup. Allpatientsrequired analgesic medication for abdominal pain. Frequent acute pancreatitis or severe abdominal pain due to acute exacerbation occurred in 20 patients(43%). Pre-operative complications due to pancreatitis were observed in 18 patients(39%). Pancreatic functional insufficiency was observed in 14 patients(30%). Two laparoscopic patients(2/9) were converted. In seven successful laparoscopic cases, the mean operative time was 323 ± 29(290-370) min. Estimated intra-operativeblood loss was 57 ± 14(40-80) m L. One patient had a postoperative complication, and no mortality was observed. Postoperative hospital stay was 7 ± 2(5-11) d. Multiple linear regression analysis of 37 open Frey procedures showed that an inflammatory mass(P < 0.001) and acute exacerbation(P < 0.001) were risk factors for intra-operative blood loss. CONCLUSION: The laparoscopic Frey procedure for CP is feasible but only suitable in carefully selected patients.
文摘BACKGROUND: Portal hypertension is a common diseasewith a high mortality and serious effect on the life quality ofpatients. Presently, shunt and disconnection are commonlyused for surgical treatment of portal hypertension. The aimof this study was conducted to analyze the results of a modi-fied Sugiura procedure for the management of 160 cirrhoticpatients with portal hypertension.METHODS: The results of a modified Sugiura procedurefor the treatment of 160 cirrhotic patients with portal hyper-tension from January 1991 to July 2002 were retrospectivelyanalyzed.RESULTS: The operative mortality for the procedure waszero. Postoperative intra-abdominal bleeding was noted in2 patients, drowned lung in 1, pneumonia in 1, and splenicvenous thrombosis in 4. Of the 160 patients, 157 (98%)were followed up from 6 months to 11.5 years. Of the 157patients, only one died of hepatic coma 6 years after opera-tion, and 3 of rebleeding. The absolute and relative survivalrates were 97.5% (156/160) and 99% (159/160), respective-ly. The absolute and relative occurrence rates of hepatic co-ma were 2.5% (4/160) and 0.6% (1/157), respectively. Theabsolute and relative occurrence rates of rebleeding were3.8% (6/160) and 1.9% (3/157) , respectively. In 96 of 116Child B patients (82.8%), liver function improved frompreoperative class B to A 3 months after operation. Sixty-five patients were subjected to gastroscopy and 22 patients,esophageal barium photography 6 months after operation.Gastro-esophageal varices disappeared in 56 patients(64.4%, 56/87), obviously improved in 30 (34.5%, 30/87),and unchanged in 1 (1.2%, 1/87). The occurrence rate ofportal hypertensive gastropathy (PHG) was 13.9% (9/65).CONCLUSION: Our results showed that the modifiedSugiura procedure is effective in the treatment of portal hy-pertension, with a low rate of operative complication,bleeding recurrence, and hepatic coma.
文摘BACKGROUND:The Frey procedure(FP)is the treatment of choice for symptomatic chronic pancreatitis(CP).In cases of biliary stricture,biliary derivation can be performed by choledochoduodenostomy,Roux-en-Y choledochojejunostomy or,more recently,reinsertion of the common bile duct(CBD)into the resection cavity.The objective of the present study was to evaluate the outcomes associated with each of these three types of biliary derivation.METHODS:We retrospectively analyzed demographic,CPrelated,surgical and follow-up data for patients having undergone FP for CP with biliary derivation between 2004and 2012 in our university medical center.The primary efficacy endpoint was the rate of CBD stricture recurrence.The secondary endpoints were surgical parameters,postoperative complications,postoperative follow-up and the presence of risk factors for secondary CBD stricture.RESULTS:Eighty patients underwent surgery for CP during the study period.Of these,15 patients received biliary derivation with the FP.Eight of the FPs(53.3%)were combined with choledochoduodenostomy,4(26.7%)with choledochojejunostomy and 3(20.0%)with reinsertion of the CBD into the resection cavity.The mean operating time was 390minutes.Eleven complications(73.3%)were recorded,including one major complication(6.7%)that necessitated radiologicallyguided drainage of an abdominal collection.The mean(range)length of stay was 17 days(8-28)and the median(range)follow-up time was 35.2 months(7.2-95.4).Two patients presented stricture after CBD reinsertion into the resection cavity;one was treated with radiologically-guided dilatation and the other underwent revisional Roux-en-Y choledochojejunostomy.Three patients presented alkaline reflux gastritis(37.5%),one(12.5%)cholangitis and one CBD stricture after FP with choledochoduodenostomy.No risk factors for secondary CBD stricture were identified.CONCLUSIONS:As part of a biliary derivation,the FP gave good results.We did not observe any complications specifically related to surgical treatment of the biliary tract.However,CBD reinsertion into the resection cavity appeared to be associated with a higher stricture recurrence rate.In our experience,choledochojejunostomy remains the"gold standard"for the surgical treatment for CBD strictures.
文摘BACKGROUND Hemorrhoidal prolapse is a common benign disease with a high incidence.The treatment procedure for prolapse and hemorrhoids(PPH)remains an operative method used for internal hemorrhoid prolapse.Although it is related to less posoperative pain,faster recovery and shorter hospital stays,the postoperative recurrence rate is higher than that of the Milligan-Morgan hemorrhoidectomy(MMH).We have considered that recurrence could be due to shortage of the pulling-up effect.This issue may be overcome by using lower purse-string sutures[modified-PPH(M-PPH)].AIM To compare the therapeutic effects and the patients’satisfaction after M-PPH,PPH and MMH.METHODS This retrospective cohort study included 1163 patients(M-PPH,461;original PPH,321;MMH,381)with severe hemorrhoids(stage III/IV)who were admitted to The 2nd Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University from 2012 to 2014.Early postoperative complications,efficacy,postoperative anal dysfunction and patient satisfaction were compared among the three groups.Established criteria were used to assess short-and long-term postoperative complications.A visual analog scale was used to evaluate postoperative pain.Follow-up was conducted 5 years postoperatively.RESULT Length of hospital stay and operating time were significantly longer in the MMH group(8.05±2.50 d,19.98±4.21 min;P<0.0001)than in other groups.The incidence of postoperative anastomotic bleeding was significantly lower after MPPH than after PPH or MMH(1.9%,5.1%and 3.7%;n=9,16 and 14;respectively).There was a significantly higher rate of sensation of rectal tenesmus after M-PPH than after MMH or PPH(15%,8%and 10%;n=69,30 and 32;respectively).There was a significantly lower rate of recurrence after M-PPH than after PPH(8.7%and 18.8%,n=40 and 61;P<0.0001).The incidence of postoperative anal incontinence differed significantly only between the MMH and M-PPH groups(1.3%and 4.3%,n=5 and 20;P=0.04).Patient satisfaction was significantly greater after M-PPH than after other surgeries.CONCLUSION M-PPH has many advantages for severe hemorrhoids(Goligher stage III/IV),with a low rate of anastomotic bleeding and recurrence and a very high rate of patient satisfaction.
文摘There is still significant debate regarding the best surgical treatment for malignant left-sided large bowel obstruction.Primary resection and anastomosis offers the advantages of a definite procedure without need for further surgery.Its main disadvantages are related to the increased technical challenge and to the potential higher risk of anastomotic leakage that occurs in the emergency setting.Primary resection with end colostomy(Hartmann's procedure) is considered the safer option.Tan et al compared in a systematic review and meta-analysis the use of self-expanding metallic stents(SEMS) as a bridge to surgery vs emergency surgery in the management of acute malignant left-sided large bowel obstruction.The authors concluded that the technical and clinical success rates for stenting were lower than expected.SEMS was associated with a high incidence of clinical and silent perforation.Stenting instead of loop colostomy can be recommended only if the appropriate expertise is available in the hospital.The goal of stenting,a decrease of the stoma rate,may be advocated only if the complication rates of stenting are lower than those of stoma creation in the emergency situation.Until now,this was not demonstrated in a prospective randomized trial.
基金supported by Key Program of National Natural Science Foundation of China(Grant No.50935008)
文摘Fracture assessment of the cracked structures is essential to avoiding fracture failure.A number of fracture assessment procedures have been proposed for various steel structures.However,the studies about the application of available procedures for titanium alloy structures are scarcely reported.Fracture assessment for the electron beam(EB) welded thick-walled damage tolerant Ti-6Al-4V(TC4-DT) alloy is performed by the fitness-for-service(FFS) FITNET procedure.Uniaxial tensile tests and fracture assessment tests of the base metal and weld metal are carried out to obtain the input information of assessment.The standard options and advanced options of FITNET FFS procedure are used to the fracture assessment of the present material.Moreover,the predicted maximum loads of compact tensile specimen using FITNET FFS procedure are verified with the experimental data of fracture assessment tests.As a result,it is shown that the mechanical properties of weld metal are inhomogeneous along the weld depth.The mismatch ratio M is less than 10% at the weld top and middle,whereas more than 10% at the weld bottom.Failure assessment lines of standard options are close to that of advanced option,which means that the standard options are suitable for fracture assessment of the present welds.The accurate estimation of the maximum loads has been obtained by fracture assessment of standard options with error less than 6%.Furthermore,there are no potential advantages of applying higher options or mismatch options.Thus,the present welded joints can be treated as homogeneous material during the fracture assessment,and standard option 1 can be used to achieve accurate enough results.This research provides the engineering treatment methods for the fracture assessment of titanium alloy and its EB welds.
文摘Objective: To evaluate the procedures and timing ofoperation as well as long-term postoperative effect ofcongenital choledochal cysts (CCC) in adults.Methods: The procedures and timing of operation,effective rate, re-operation rate and incidence of car-cinoma after operation for 70 adult patients withCCC from January 1980 to June 1999 were analyzedretrospectively.Results: The re-operation rate of external drainagewas 86% (6/7). The effective rate of internal drain-age was significantly lower than that of cyst resection(3/10 vs 45/49, X^2=20. 94, P【0.001). The re-op-eration rate and incidence of carcinoma of internaldrainage were higher than those of cyst resection (5/10 vs 3/49, X^2=13. 64, P【0. 001 and 3/10 vs 3/49,X^2=5. 18, P【0. 025). The reoperation rate of e-mergency surgery was higher than that of selectiveoperation (8/10 vs 6/56, X^2=24. 37, P【0.001).Conclusions: External drainage should be the first-aid measure and the therapy of choice on emergencybasis. Internal drainage should never be attempted.Cyst resection with Roux-en-Y hepaticojejunostomy isrecommended as the treatment of choice in selectiveoperation.
文摘BACKGROUND Obstructed defecation syndrome(ODS) is a widespread disease in the world.Rectocele is the most common cause of ODS in females. Multiple procedures have been performed to treat rectocele and no procedure has been accepted as the gold-standard procedure. Stapled transanal rectal resection(STARR) has been widely used. However, there are still some disadvantages in this procedure and its effectiveness in anterior wall repair is doubtful. Therefore, new procedures are expected to further improve the treatment of rectocele.AIM To evaluate the efficacy and safety of a novel rectocele repair combining Khubchandani's procedure with stapled posterior rectal wall resection.METHODS A cohort of 93 patients were recruited in our randomized clinical trial and were divided into two different groups in a randomized manner. Forty-two patients(group A) underwent Khubchandani's procedure with stapled posterior rectal wall resection and 51 patients(group B) underwent the STARR procedure.Follow-up was performed at 1, 3, 6, and 12 mo after the operation. Preoperative and postoperative ODS scores and depth of rectocele, postoperative complications, blood loss, and hospital stay of each patient were documented. All data were analyzed statistically to evaluate the efficiency and safety of our procedure.RESULTS In group A, 42 patients underwent Khubchandani's procedure with stapled posterior rectal wall resection and 34 were followed until the final analysis. In group B, 51 patients underwent the STARR procedure and 37 were followed until the final analysis. Mean operative duration was 41.47 ± 6.43 min(group A) vs39.24 ± 6.53 min(group B). Mean hospital stay was 3.15 ± 0.70 d(group A) vs 3.14± 0.54 d(group B). Mean blood loss was 10.91 ± 2.52 mL(group A) vs 10.14 ± 1.86 m L(group B). Mean ODS score in group A declined from 16.50 ± 2.06 before operation to 5.06 ± 1.07 one year after the operation, whereas in group B it was17.11 ± 2.57 before operation and 6.03 ± 2.63 one year after the operation. Mean depth of rectocele decreased from 4.32 ± 0.96 cm(group A) vs 4.18 ± 0.95 cm(group B) preoperatively to 1.19 ± 0.43 cm(group A) vs 1.54 ± 0.82 cm(group B)one year after operation. No other serious complications, such as rectovaginal fistula, perianal sepsis, or deaths, were recorded. After 12 mo of follow-up, 30 patients'(30/34, 88.2%) final outcomes were judged as effective and 4(4/34,11.8%) as moderate in group A, whereas in group B, 30(30/37, 81.1%) patients' outcomes were judged as effective, 5(5/37, 13.5%) as moderate, and 2(2/37,5.4%) as poor.CONCLUSION Khubchandani's procedure combined with stapled posterior rectal wall resection is an effective, feasible, and safe procedure with minor trauma to rectocele.
基金supported by grants from the Youth cultivation project of military medical science(16QNP133)Medical big data research and development project of PLA general hospital(2018MBD-015)+3 种基金the capital health research and development of special project(2016-1-5014)the National Natural Science Foundation of China(81670940,81770991)Financial supports from the Beijing Nova Program(xxjh2015105)clinical support fund of General Hospital of the PLA are acknowledged
文摘Acute sensorineural hearing loss is an uncommon phenomenon in dentistry.We describe the case of a 79-year-old male who presented with acute sensorineural hearing loss occurring 2 days after a tooth extraction procedure under local anesthesia.Possible mechanisms are discussed.He was treated with vasodilators(Ginaton and Alprostadil Injection)and Mecobalamin injection with benefit.High dose oral steroids(1 mg/kg)and low molecular weight dextran were used.
