Objective To evaluate physicians' attitude and knowledge about the management of adult growth hormone deficiency(AGHD) at Peking Union Medical College Hospital and impact factors associated with better decision-ma...Objective To evaluate physicians' attitude and knowledge about the management of adult growth hormone deficiency(AGHD) at Peking Union Medical College Hospital and impact factors associated with better decision-making.Methods A 21-question anonymous survey was distributed and collected at Peking Union Medical College Hospital,a major teaching hospital in Chinese Academy of Medical Sciences.Data of physicians' educational background,clinical training,patient workload per year and continuing medical education in AGHD were collected.Factors associated with appropriate answers were further analyzed by multivariate regression models.Results One hundred and eighteen internal medicine residents,endocrine fellows,attending physicians and visiting physicians responded to the survey.Among them,44.9% thought that AGHD patients should accept recombinant human growth hormone replacement therapy.Moreover,56.8% selected insulin tolerance test and growth hormone-releasing hormone-arginine test for the diagnosis of AGHD.Logistic regression analysis of physician demographic data,educational background,and work experience found no consistent independent factors associated with better decision-making,other than continued medical education,that were associated with treatment choice.Conclusions The physicians' reported management of AGHD in this major academic healthcare center in Beijing was inconsistent with current evidence.High quality continued medical education is required to improve Chinese physician management of AGHD.展开更多
Objectives To investigate the positive rate of different hepatitis B virus （HBV） serological markers, and the demographic factors related to HBV infection. Methods We enrolled all patients tested for HBV serologica...Objectives To investigate the positive rate of different hepatitis B virus （HBV） serological markers, and the demographic factors related to HBV infection. Methods We enrolled all patients tested for HBV serological markers, such as HBV surface antigen （HBsAg）, HBV surface antibody （HBsAb）, hepatitis B e antigen （HBeAg）, hepatitis B e antibody （HBeAb）, HBV core antibody （HBcAb）, and HBV-DNA from July 2008 to July 2009 in Peking Union Medical College Hospital. The positive rate of each HBV serological marker was calculated according to gender, age, and department, respectively. The positive rates of HBV-DNA among patients with positive HBsAg were also analyzed. Results Among 27 409 samples included, 2681 （9.8%） were HBsAg positive. When patients were divided into 9 age groups, the age-specific positive rate of HBsAg was 1.2%, 9.6%, 12.3%, 10.9%, 10.3%, 9.7%, 8.0%, 5.8%, and 4.3%, respectively. The positive rate of HBsAg in non-surgical department, surgical department, and health examination center was 16.2%, 5.8%, and 4.7%, respectively. The positive rate of HBsAg of males （13.3%） was higher than that of females （7.3%, P=0.000）. Among the 2681 HBsAg （＋） patients, 1230 （45.9%） had HBV-DNA test, of whom 564 （45.9%） were positive. Patients with HBsAg （＋）, HBeAg （＋）, and HBcAg （＋） result usually had high positive rate of HBV-DNA results （71.8%, P=0.000）. Conclusions Among this group of patients in our hospital, the positive rate of HBsAg was relatively high. Age group of 20-29, males, and patients in non-surgical departments were factors associated with high positive rate of HBsAg.展开更多
Objective To evaluate the effect of elective repeat cesarean section on the maternal and neonatal outcomes. Methods A retrospective clinic- and hospital-based survey was designed for comparing the maternal and neonat...Objective To evaluate the effect of elective repeat cesarean section on the maternal and neonatal outcomes. Methods A retrospective clinic- and hospital-based survey was designed for comparing the maternal and neonatal outcomes of elective repeat cesarean section [RCS group （one previous cesarean section） and MRCS group （two or more previous cesarean sections）] and primary cesarean section （FCS group） at Peking Union Medical College Hospital from January 1998 to December 2007. Results The incidence of repeat cesarean section increased from 1.26% to 7.32%. The mean gestational age at delivery in RCS group （38.1±1.8 weeks） and MRCS group （37.3±2.5 weeks） were significantly shorter than that in FCS group （38.9±2.1 weeks, all P〈0.01）. The incidence of complication was 33.8% and 33.3% in RCS group and MRCS group respectively, and was significantly higher than that in FCS group （7.9%, P〈0.05）. Dense adhesion （13.5% vs. 0.4%, OR=7.156, 95% CI： 1.7-30.7, P〈0.01） and uterine rupture （1.0% vs. O,P〈0.05） were commoner in RCS group compared with FCS group. Neonatal morbidity was similar among three groups （P〉0.05）. Conclusions Repeat cesarean section is associated with more complicated surgery technique and increased frequency of maternal morbidity. However, the incidence of neonatal morbidity is similar to primary cesarean section.展开更多
Background In clinical practice, the mechanisms underlying chronic post-surgical pain （CPSP） remain insufficiently understood. The primary goals of this study were to determine the incidence of chronic pain after th...Background In clinical practice, the mechanisms underlying chronic post-surgical pain （CPSP） remain insufficiently understood. The primary goals of this study were to determine the incidence of chronic pain after thoracic surgery and to identify possible risk factors associated with the development of chronic post-thoracotomy pain in Chinese patients. The secondary goal was to determine whether the difference between pre- and post-operative white blood cell （WBC） counts could predict the prevalence of CPSP after thoracotomy. The impact of chronic pain on daily life was also investigated. Methods We contacted by phone 607 patients who had undergone thoracotomy at our hospital during the period February 2009 to May 2010. Statistical comparisons were made between patients with or without CPSP. Results Results were ultimately analyzed from 466 qualified patients. The overall incidence of CPSP was 64.5%. Difference between pre- and post-operative WBC counts differed significantly between patients with or without CPSP （P 〈0.001） and was considered as an independent risk factor for the development of CPSP following thoracotomy （P 〈0.001）. Other predictive factors for chronic pain included younger age （〈60 years, P 〈0.001）, diabetes mellitus （P=0.023）, acute post-operative pain （P=0.005） and the duration of chest tube drainage （P 〈0.001）. At the time of interviews, the pain resulted in at least moderate restriction of daily activities in 15% of the patients, of which only 16 patients had paid a visit to the doctor and only three of them were satisfied with the therapeutic effects, Conclusions Chronic pain is common after thoracotomy. WBC count may be a new independent risk factoring surgical patients during peri-operative period. Besides, age, diabetes mellitus, acute post-operative pain, and duration of chest tube drainage may also play a role in chronic post-surgical pain occurrence.展开更多
Background Respiratory failure caused by metastatic pulmonary choriocarcinoma usually develops rapidly and is associated with a high mortality. The clinical management strategy is important in choriocarcinoma patients...Background Respiratory failure caused by metastatic pulmonary choriocarcinoma usually develops rapidly and is associated with a high mortality. The clinical management strategy is important in choriocarcinoma patients with acute respiratory failure. The objective of this study was to evaluate the clinical characteristics, treatment outcome and potential risk factors in patients with acute respiratory failure from metastatic pulmonary choriocarcinoma. Methods Sixteen patients with acute respiratory failure from pulmonary metastases choriocarcinoma were enrolled and treated at Peking Union Medical College Hospital from 1995 to 2010. Clinical characteristics, causes of pulmonary failure, treatment profiles and outcomes were analyzed retrospectively. Results The presence of respiratory infection or hemorrhage was associated with acute respiratory failure in patients with metastatic choriocarcinoma. Fifteen （93.8%） patients presented with pulmonary infection, 8 （50.0%） patients with pulmonary hemorrhage. All patients were treated with face mask or mechanical ventilation. Fourteen （87.5%） patients received initial chemotherapy at a low dosage or with modified regimens, with a median of 2 cycles （range 1 to 4）. Seven patients achieved a complete remission （CR）, two had a partial remission. Six CR patients remained alive with a median follow-up of 59 months （range 16 to 120）. Seven patients developed progressive diseases and subsequently died. Conclusions Respiratory infection and hemorrhage were associated with acute respiratory failure in metastatic pulmonary choriocarcinoma. The initial administration of gentle chemotherapy regimens, accompanied with mechanical ventilation, is feasible and effective in attenuatina resDiratorv failure in patients with metastatic oulmonarv choriocarcinoma.展开更多
Although presented over one hundred years ago, the transsphenoidal approach to pituitary adenoma is still the most suitable and safe route to pituitary adenoma, with a series of significant evolutional steps. The tran...Although presented over one hundred years ago, the transsphenoidal approach to pituitary adenoma is still the most suitable and safe route to pituitary adenoma, with a series of significant evolutional steps. The transsphenoidal approach to pituitary adenoma is still a non-universal approach used in different centers of different areas in our country. The transsphenoidal approach has a number of variations, including the endonasal rhinoseptoplastic, transnasal displacement,展开更多
Around 450 cases of acute severe hepatitis of unknown origin in children have been reported in 21 countries and region globally since April 2022,which has exceeded the past annual incidences of related regions,and has...Around 450 cases of acute severe hepatitis of unknown origin in children have been reported in 21 countries and region globally since April 2022,which has exceeded the past annual incidences of related regions,and has aroused wide concern.Affected patients were predominantly children under 16years of age,presented with symptoms of acute hepatitis with markedly elevated liver enzymes,and had been ruled out of common viral infections such as hepatitis A,B,C,D,and E.Similar cases have not been reported in China yet.However,considering that the severe acute hepatitis has involved worldwide areas,still with unknown origin,and incidences of severity is relatively high,we formulated this recommendation to standardize diagnosis and treatment of acute severe hepatitis of unknown origin in Peking Union Medical College Hospital,to get fully prepared to the possible public health events.展开更多
Although there have been progressive advancements in the life sciences since the beginning of the 21st Century, basic medical sciences generally fail to be efficiently translated into clinical research and ultimately ...Although there have been progressive advancements in the life sciences since the beginning of the 21st Century, basic medical sciences generally fail to be efficiently translated into clinical research and ultimately into clinical practice. Translational medicine has become a fashionable term de- scribing the inclination of basic science and clinical re- searchers to ultimately help patients through facilitating the incorporation of basic research findings into clinical prac- tice （Zerhouni, 2005）.展开更多
Background：Female genital malformations represent miscellaneous deviations from normal anatomy.This study aimed to explore the clinical characteristics of patients who underwent surgery for genital tract malformation...Background：Female genital malformations represent miscellaneous deviations from normal anatomy.This study aimed to explore the clinical characteristics of patients who underwent surgery for genital tract malformations at Peking Union Medical College Hospital （PUMCH） during a 31-year period.Methods：We retrospectively reviewed surgical cases of congenital malformation of the female genital tract at PUMCH for a 31-year period,analyzed the clinical characteristics of 1634 hospitalized patients,and investigated their general condition,diagnosis,and treatment process.Results：The average patient age was 27.6 ± 9.9 years.The average ages of patients who underwent surgery for uterine malformation and vaginal malformation were 31.9 ± 8.8 years and 24.7 ± 9.0 years,respectively;these ages differed significantly （P 〈 0.01）.Among patients with genital tract malformation,the percentages of vaginal malformation,uterine malformation,vulva malformation,cervical malformation,and other malformations were 43.9%,43.5%,7.4%,2.3%,and 2.8%,respectively.Among patients with uterine malformation,34.5% underwent surgery for the genital tract malformation,whereas in patients with vaginal malformation,the proportion is 70.6%;the difference between the two groups was statistically significant （P 〈 0.01）.The percentage of complications of the urinary system in patients with vaginal malformations was 10.2%,which was statistically significantly higher than that （5.3%） in patients with uterine malformations （P 〈 0.01）.Conclusions：Compared to patients with uterine malformations,patients with vaginal malformations displayed more severe clinical symptoms,a younger surgical age,and a greater need for attention,early diagnosis,and treatment.Patients with genital tract malformations,particularly vaginal malformations,tend to have more complications of the urinary system and other malformations than patients with uterine malformations.展开更多
To the Editor:Germ-cell tumors(GCTs)of the central nervous system(CNS),the morphologic,immunophenotypic,and(in some respects)genetic homologs of gonadal and other extraneuraxial germ-cell neoplasms,principally affect ...To the Editor:Germ-cell tumors(GCTs)of the central nervous system(CNS),the morphologic,immunophenotypic,and(in some respects)genetic homologs of gonadal and other extraneuraxial germ-cell neoplasms,principally affect children and adolescents.[1]The diagnosis of GCT of the CNS is not difficult,and the major GCT types are germinoma,teratoma,yolk sac tumor(YST),embryonal carcinoma,and choriocarcinoma.Neoplasms harboringmultiple types are calledmixed GCT(MGCT).Peak incidence of GCT of the CNS occurs in patients aged 10 to 14 years,and a clear majority of cases of all histologic types involve males.GCT of the CNS seems to be more prevalent in eastern Asia than in Europe and the United States.[1-5]In Japan,70%of patients withGCT of CNS aged 10 to 24 years and 73%were males,[6]but there were limited Chinese patients’large-scale data,only two studies reportedmore than 100 cases.[7,8]Were the types and clinical characteristics of GCTs in the CNS in Chinese patients consistent with Japan’s?We reviewed all cases of GCTs in the CNS diagnosed by pathology in Peking Union Medical College Hospital from year 1999 to 2019.We retrospectively collected and analyzed all cases underwent optical microscopy and immunohistochemical staining examinations,aiming to summarize and analyze the clinicopathologic features of them.展开更多
Percutaneous endomyocardial biopsy (EMB) is a technique that biopsy samples are obtained using bioptome through peripheral blood vessel. This technique has been used and refined more than 50 years in clinical applicat...Percutaneous endomyocardial biopsy (EMB) is a technique that biopsy samples are obtained using bioptome through peripheral blood vessel. This technique has been used and refined more than 50 years in clinical application. Now EMB has become an important diagnostic tool in the diagnosis of myocarditis and cardiomyopathy. Department of cardiology, Peking Union Medical College Hospital (PUMCH) has performed more than 500 cases of EMB and accumulated abundant practical experience. The clinical practice guideline of percutaneous EMB in PUMCH was also established, including indications, contradictions, operation key points, sample handling and processing, post-procedure monitoring, and treatment strategy for potential complications, etc. Due to the limitation of EMB, cardiologists should collaborate with experts in echocardiography, cardiac magnetic resonance and cardiac pathology to avoid missed diagnosis and misdiagnosis. Cardiologists should pay more attention to the value of EMB and actively perform EMB to improve the diagnosis level for myocarditis and cardiomyopathy in China.展开更多
The locations and modalities of palliative care services to patients with severe/end-stage illness can be diverse,ranging from general hospitals to home-based care.The concept of palliative care hasn't been fully ...The locations and modalities of palliative care services to patients with severe/end-stage illness can be diverse,ranging from general hospitals to home-based care.The concept of palliative care hasn't been fully applied to medical practice by care providers in China's Mainland,where the seriously ill or terminal patients mainly receive medical care in hospitals.The implementation of palliative care in medical practice has developed greatly in Peking Union Medical College hospital in terms of clinical patient care,education,and research.This article gives an overview of it,and the experiences in team building,promotion,support seaking and fund raising were also discussed in this article.We hope to explore an effective dilivering model of palliative care for end-stage patients that is adaptive to Chinese culture and social environment.展开更多
Primary aldosteronism(PA)is the most common form of secondary hypertension,with its main manifestations including hypertension and hypokalemia.Early identification of PA is extremely important as PA patients can easil...Primary aldosteronism(PA)is the most common form of secondary hypertension,with its main manifestations including hypertension and hypokalemia.Early identification of PA is extremely important as PA patients can easily develop cardiovascular complications such as atrial fibrillation,stroke,and myocardial infarction.The past decade has witnessed the rapid advances in the genetics of PA,which has shed new light on PA treatment.While surgery is the first choice for unilateral diseases,bilateral lesions can be treated with mineralocorticoid receptor antagonists(MRAs).The next-generation non-steroidal MRAs are under investigations.New medications including calcium channel blockers,macrophage antibiotics,and aldosterone synthase inhibitors have provided a new perspective for the medical treatment of PA.展开更多
Continuous renal replacement therapy(CRRT)is widely used for treating critically-ill patients in the emergency department in China.Anticoagulant therapy is needed to prevent clotting in the extracorporeal circulation ...Continuous renal replacement therapy(CRRT)is widely used for treating critically-ill patients in the emergency department in China.Anticoagulant therapy is needed to prevent clotting in the extracorporeal circulation during CRRT.Regional citrate anticoagulation(RCA)has been shown to potentially be safer and more effective,and is now recommended as the preferred anticoagulant method for CRRT.However,there is still a lack of unified standards for RCA management in the world,and there are many problems in using this method in clinical practice.The Emergency Medical Doctor Branch of the Chinese Medical Doctor Association(CMDA)organized a panel of domestic emergency medicine experts and international experts of CRRT to discuss RCA-related issues,including the advantages and disadvantages of RCA in CRRT anticoagulation,the principle of RCA,parameter settings for RCA,monitoring of RCA(mainly metabolic acid-base disorders),and special issues during RCA.Based on the latest available research evidence as well as the paneled experts'clinical experience,considering the generalizability,suitability,and potential resource utilization,while also balancing clinical advantages and disadvantages,a total of 16 guideline recommendations were formed from the experts'consensus.展开更多
BACKGROUND Eosinophilic gastroenteritis(EGE)is a chronic recurrent disease with abnormal eosinophilic infiltration in the gastrointestinal tract.Glucocorticoids remain the most common treatment method.However,disease ...BACKGROUND Eosinophilic gastroenteritis(EGE)is a chronic recurrent disease with abnormal eosinophilic infiltration in the gastrointestinal tract.Glucocorticoids remain the most common treatment method.However,disease relapse and glucocorticoid dependence remain notable problems.To date,few studies have illuminated the prognosis of EGE and risk factors for disease relapse.AIM To describe the clinical characteristics of EGE and possible predictive factors for disease relapse based on long-term follow-up.METHODS This was a retrospective cohort study of 55 patients diagnosed with EGE admitted to one medical center between 2013 and 2022.Clinical records were collected and analyzed.Kaplan-Meier curves and log-rank tests were conducted to reveal the risk factors for long-term relapse-free survival(RFS).RESULTS EGE showed a median onset age of 38 years and a slight female predominance(56.4%).The main clinical symptoms were abdominal pain(89.1%),diarrhea(61.8%),nausea(52.7%),distension(49.1%)and vomiting(47.3%).Forty-three(78.2%)patients received glucocorticoid treatment,and compared with patients without glucocorticoid treatments,they were more likely to have elevated serum immunoglobin E(IgE)(86.8%vs 50.0%,P=0.022)and descending duodenal involvement(62.8%vs 27.3%,P=0.046)at diagnosis.With a median follow-up of 67 mo,all patients survived,and 56.4%had at least one relapse.Six variables at baseline might have been associated with the overall RFS rate,including age at diagnosis<40 years[hazard ratio(HR)2.0408,95%confidence interval(CI):1.0082–4.1312,P=0.044],body mass index(BMI)>24 kg/m^(2)(HR 0.3922,95%CI:0.1916-0.8027,P=0.014),disease duration from symptom onset to diagnosis>3.5 mo(HR 2.4725,95%CI:1.220-5.0110,P=0.011),vomiting(HR 3.1259,95%CI:1.5246-6.4093,P=0.001),total serum IgE>300 KU/L at diagnosis(HR 0.2773,95%CI:0.1204-0.6384,P=0.022)and glucocorticoid treatment(HR 6.1434,95%CI:2.8446-13.2676,P=0.003).CONCLUSION In patients with EGE,younger onset age,longer disease course,vomiting and glucocorticoid treatment were risk factors for disease relapse,whereas higher BMI and total IgE level at baseline were protective.展开更多
Attempts have been made to use cell transplantation and biomaterials to promote cell proliferation,differentiation,migration,and survival,as well as angiogenesis,in the context of brain injury.However,whether bioactiv...Attempts have been made to use cell transplantation and biomaterials to promote cell proliferation,differentiation,migration,and survival,as well as angiogenesis,in the context of brain injury.However,whether bioactive materials can repair the damage caused by ischemic stroke by activating endogenous neurogenesis and angiogenesis is still unknown.In this study,we applied chitosan gel loaded with basic fibroblast growth factor to the stroke cavity 7 days after ischemic stroke in rats.The gel slowly released basic fibroblast growth factor,which improved the local microenvironment,activated endogenous neural stem/progenitor cells,and recruited these cells to migrate toward the penumbra and stroke cavity and subsequently differentiate into neurons,while enhancing angiogenesis in the penumbra and stroke cavity and ultimately leading to partial functional recovery.This study revealed the mechanism by which bioactive materials repair ischemic strokes,thus providing a new strategy for the clinical application of bioactive materials in the treatment of ischemic stroke.展开更多
Background:A high prevalence of diabetes mellitus(DM)coexisting with autoimmune pancreatitis(AIP)is observed.However,evidence on the circumstances under which corticosteroid therapy(CST)for AIP improves or worsens DM ...Background:A high prevalence of diabetes mellitus(DM)coexisting with autoimmune pancreatitis(AIP)is observed.However,evidence on the circumstances under which corticosteroid therapy(CST)for AIP improves or worsens DM is scarce.This study aimed to demonstrate and identify predictors of DM control under the influence of CST.Methods:Patients diagnosed with type 1 AIP were enrolled from a prospectively maintained cohort and were classified into three groups according to the chronology in which AIP and DM were diagnosed:pre-existing DM(pDM),concurrent DM(cDM),and non-DM(nDM).The responses of DM to CST were assessed when corticosteroid was ceased or tapered to a maintenance dose and classified as‘improvement’and‘non-improvement’(including‘no change’and‘exacerbation’).Results:Among 101 patients with type 1 AIP,52(51.5%)patients were complicated with DM at the time of AIP diagnosis,with 36 patients in the cDM group and 16 patients in the pDM group.The incidences of diffuse pancreatic swelling(72.2%)and pancreatic body/tail involvement(91.7%)were significantly higher in the cDM group than in both the pDM and nDM groups.Of the 52 patients with DM,CST was administered in 48 cases.Multivariate logistic analysis identified that elevated serum gamma-glutamyl transferase(GGT)level at AIP diagnosis[odds ratio(OR)=0.032,95%confidence interval(CI):0.003-0.412,P=0.008]and pancreatic atrophy after CST(OR=0.027,95%CI:0.003-0.295,P=0.003)were negatively associated with DM control improvement.Conclusions:Patients with diffuse pancreatic swelling and pancreatic body/tail involvement in pancreatitis tended to be complicated with cDM at AIP diagnosis.CST exerted a beneficial effect on the clinical course of DM in nearly half of the AIP patients complicated with DM at diagnosis,particularly in those without elevated serum GGT levels at diagnosis and who did not experience pancreatic atrophy after CST.展开更多
BACKGROUND Although chronic erosive gastritis(CEG)is common,its clinical characteristics have not been fully elucidated.The lack of consensus regarding its treatment has resulted in varied treatment regimens.AIM To ex...BACKGROUND Although chronic erosive gastritis(CEG)is common,its clinical characteristics have not been fully elucidated.The lack of consensus regarding its treatment has resulted in varied treatment regimens.AIM To explore the clinical characteristics,treatment patterns,and short-term outcomes in CEG patients in China.METHODS We recruited patients with chronic non-atrophic or mild-to-moderate atrophic gastritis with erosion based on endoscopy and pathology.Patients and treating physicians completed a questionnaire regarding history,endoscopic findings,and treatment plans as well as a follow-up questionnaire to investigate changes in symptoms after 4 wk of treatment.RESULTS Three thousand five hundred sixty-three patients from 42 centers across 24 cities in China were included.Epigastric pain(68.0%),abdominal distension(62.6%),and postprandial fullness(47.5%)were the most common presenting symptoms.Gastritis was classified as chronic non-atrophic in 69.9%of patients.Among those with erosive lesions,72.1%of patients had lesions in the antrum,51.0%had multiple lesions,and 67.3%had superficial flat lesions.In patients with epigastric pain,the combination of a mucosal protective agent(MPA)and proton pump inhibitor was more effective.For those with postprandial fullness,acid regurgitation,early satiety,or nausea,a MPA appeared more promising.CONCLUSION CEG is a multifactorial disease which is common in Asian patients and has non-specific symptoms.Gastroscopy may play a major role in its detection and diagnosis.Treatment should be individualized based on symptom profile.展开更多
BACKGROUND There is currently a shortage of accurate,efficient,and precise predictive instruments for rectal neuroendocrine neoplasms(NENs).AIM To develop a predictive model for individuals with rectal NENs(R-NENs)usi...BACKGROUND There is currently a shortage of accurate,efficient,and precise predictive instruments for rectal neuroendocrine neoplasms(NENs).AIM To develop a predictive model for individuals with rectal NENs(R-NENs)using data from a large cohort.METHODS Data from patients with primary R-NENs were retrospectively collected from 17 large-scale referral medical centers in China.Random forest and Cox proportional hazard models were used to identify the risk factors for overall survival and progression-free survival,and two nomograms were constructed.RESULTS A total of 1408 patients with R-NENs were included.Tumor grade,T stage,tumor size,age,and a prognostic nutritional index were important risk factors for prognosis.The GATIS score was calculated based on these five indicators.For overall survival prediction,the respective C-indexes in the training set were 0.915(95%confidence interval:0.866-0.964)for overall survival prediction and 0.908(95%confidence interval:0.872-0.944)for progression-free survival prediction.According to decision curve analysis,net benefit of the GATIS score was higher than that of a single factor.The time-dependent area under the receiver operating characteristic curve showed that the predictive power of the GATIS score was higher than that of the TNM stage and pathological grade at all time periods.CONCLUSION The GATIS score had a good predictive effect on the prognosis of patients with R-NENs,with efficacy superior to that of the World Health Organization grade and TNM stage.展开更多
Spinal cord organoids are three-dimensional tissues derived from stem cells that recapitulate the primary morphological and functional characteristics of the spinal cord in vivo.As emerging bioengineering methods have...Spinal cord organoids are three-dimensional tissues derived from stem cells that recapitulate the primary morphological and functional characteristics of the spinal cord in vivo.As emerging bioengineering methods have led to the optimization of cell culture protocols,spinal cord organoids technology has made remarkable advancements in the past decade.Our literature search found that current spinal cord organoids do not only dynamically simulate neural tube formation but also exhibit diverse cytoarchitecture along the dorsal-ventral and rostral-caudal axes.Moreover,fused organoids that integrate motor neurons and other regionally specific organoids exhibit intricate neural circuits that allows for functional assessment.These qualities make spinal cord organoids valuable tools for disease modeling,drug screening,and tissue regeneration.By utilizing this emergent technology,researchers have made significant progress in investigating the pathogenesis and potential therapeutic targets of spinal cord diseases.However,at present,spinal cord organoid technology remains in its infancy and has not been widely applied in translational medicine.Establishment of the next generation of spinal cord organoids will depend on good manufacturing practice standards and needs to focus on diverse cell phenotypes and electrophysiological functionality evaluation.展开更多
基金Supported by National Natural Science Foundation of China(81400774)PUMC Youth Fund(33320140164 and 3332016128)
文摘Objective To evaluate physicians' attitude and knowledge about the management of adult growth hormone deficiency(AGHD) at Peking Union Medical College Hospital and impact factors associated with better decision-making.Methods A 21-question anonymous survey was distributed and collected at Peking Union Medical College Hospital,a major teaching hospital in Chinese Academy of Medical Sciences.Data of physicians' educational background,clinical training,patient workload per year and continuing medical education in AGHD were collected.Factors associated with appropriate answers were further analyzed by multivariate regression models.Results One hundred and eighteen internal medicine residents,endocrine fellows,attending physicians and visiting physicians responded to the survey.Among them,44.9% thought that AGHD patients should accept recombinant human growth hormone replacement therapy.Moreover,56.8% selected insulin tolerance test and growth hormone-releasing hormone-arginine test for the diagnosis of AGHD.Logistic regression analysis of physician demographic data,educational background,and work experience found no consistent independent factors associated with better decision-making,other than continued medical education,that were associated with treatment choice.Conclusions The physicians' reported management of AGHD in this major academic healthcare center in Beijing was inconsistent with current evidence.High quality continued medical education is required to improve Chinese physician management of AGHD.
基金Supported by the Key Project from Beijing Municipal Science and Technology Commission(D121100003912003)
文摘Objectives To investigate the positive rate of different hepatitis B virus （HBV） serological markers, and the demographic factors related to HBV infection. Methods We enrolled all patients tested for HBV serological markers, such as HBV surface antigen （HBsAg）, HBV surface antibody （HBsAb）, hepatitis B e antigen （HBeAg）, hepatitis B e antibody （HBeAb）, HBV core antibody （HBcAb）, and HBV-DNA from July 2008 to July 2009 in Peking Union Medical College Hospital. The positive rate of each HBV serological marker was calculated according to gender, age, and department, respectively. The positive rates of HBV-DNA among patients with positive HBsAg were also analyzed. Results Among 27 409 samples included, 2681 （9.8%） were HBsAg positive. When patients were divided into 9 age groups, the age-specific positive rate of HBsAg was 1.2%, 9.6%, 12.3%, 10.9%, 10.3%, 9.7%, 8.0%, 5.8%, and 4.3%, respectively. The positive rate of HBsAg in non-surgical department, surgical department, and health examination center was 16.2%, 5.8%, and 4.7%, respectively. The positive rate of HBsAg of males （13.3%） was higher than that of females （7.3%, P=0.000）. Among the 2681 HBsAg （＋） patients, 1230 （45.9%） had HBV-DNA test, of whom 564 （45.9%） were positive. Patients with HBsAg （＋）, HBeAg （＋）, and HBcAg （＋） result usually had high positive rate of HBV-DNA results （71.8%, P=0.000）. Conclusions Among this group of patients in our hospital, the positive rate of HBsAg was relatively high. Age group of 20-29, males, and patients in non-surgical departments were factors associated with high positive rate of HBsAg.
文摘Objective To evaluate the effect of elective repeat cesarean section on the maternal and neonatal outcomes. Methods A retrospective clinic- and hospital-based survey was designed for comparing the maternal and neonatal outcomes of elective repeat cesarean section [RCS group （one previous cesarean section） and MRCS group （two or more previous cesarean sections）] and primary cesarean section （FCS group） at Peking Union Medical College Hospital from January 1998 to December 2007. Results The incidence of repeat cesarean section increased from 1.26% to 7.32%. The mean gestational age at delivery in RCS group （38.1±1.8 weeks） and MRCS group （37.3±2.5 weeks） were significantly shorter than that in FCS group （38.9±2.1 weeks, all P〈0.01）. The incidence of complication was 33.8% and 33.3% in RCS group and MRCS group respectively, and was significantly higher than that in FCS group （7.9%, P〈0.05）. Dense adhesion （13.5% vs. 0.4%, OR=7.156, 95% CI： 1.7-30.7, P〈0.01） and uterine rupture （1.0% vs. O,P〈0.05） were commoner in RCS group compared with FCS group. Neonatal morbidity was similar among three groups （P〉0.05）. Conclusions Repeat cesarean section is associated with more complicated surgery technique and increased frequency of maternal morbidity. However, the incidence of neonatal morbidity is similar to primary cesarean section.
文摘Background In clinical practice, the mechanisms underlying chronic post-surgical pain （CPSP） remain insufficiently understood. The primary goals of this study were to determine the incidence of chronic pain after thoracic surgery and to identify possible risk factors associated with the development of chronic post-thoracotomy pain in Chinese patients. The secondary goal was to determine whether the difference between pre- and post-operative white blood cell （WBC） counts could predict the prevalence of CPSP after thoracotomy. The impact of chronic pain on daily life was also investigated. Methods We contacted by phone 607 patients who had undergone thoracotomy at our hospital during the period February 2009 to May 2010. Statistical comparisons were made between patients with or without CPSP. Results Results were ultimately analyzed from 466 qualified patients. The overall incidence of CPSP was 64.5%. Difference between pre- and post-operative WBC counts differed significantly between patients with or without CPSP （P 〈0.001） and was considered as an independent risk factor for the development of CPSP following thoracotomy （P 〈0.001）. Other predictive factors for chronic pain included younger age （〈60 years, P 〈0.001）, diabetes mellitus （P=0.023）, acute post-operative pain （P=0.005） and the duration of chest tube drainage （P 〈0.001）. At the time of interviews, the pain resulted in at least moderate restriction of daily activities in 15% of the patients, of which only 16 patients had paid a visit to the doctor and only three of them were satisfied with the therapeutic effects, Conclusions Chronic pain is common after thoracotomy. WBC count may be a new independent risk factoring surgical patients during peri-operative period. Besides, age, diabetes mellitus, acute post-operative pain, and duration of chest tube drainage may also play a role in chronic post-surgical pain occurrence.
文摘Background Respiratory failure caused by metastatic pulmonary choriocarcinoma usually develops rapidly and is associated with a high mortality. The clinical management strategy is important in choriocarcinoma patients with acute respiratory failure. The objective of this study was to evaluate the clinical characteristics, treatment outcome and potential risk factors in patients with acute respiratory failure from metastatic pulmonary choriocarcinoma. Methods Sixteen patients with acute respiratory failure from pulmonary metastases choriocarcinoma were enrolled and treated at Peking Union Medical College Hospital from 1995 to 2010. Clinical characteristics, causes of pulmonary failure, treatment profiles and outcomes were analyzed retrospectively. Results The presence of respiratory infection or hemorrhage was associated with acute respiratory failure in patients with metastatic choriocarcinoma. Fifteen （93.8%） patients presented with pulmonary infection, 8 （50.0%） patients with pulmonary hemorrhage. All patients were treated with face mask or mechanical ventilation. Fourteen （87.5%） patients received initial chemotherapy at a low dosage or with modified regimens, with a median of 2 cycles （range 1 to 4）. Seven patients achieved a complete remission （CR）, two had a partial remission. Six CR patients remained alive with a median follow-up of 59 months （range 16 to 120）. Seven patients developed progressive diseases and subsequently died. Conclusions Respiratory infection and hemorrhage were associated with acute respiratory failure in metastatic pulmonary choriocarcinoma. The initial administration of gentle chemotherapy regimens, accompanied with mechanical ventilation, is feasible and effective in attenuatina resDiratorv failure in patients with metastatic oulmonarv choriocarcinoma.
文摘Although presented over one hundred years ago, the transsphenoidal approach to pituitary adenoma is still the most suitable and safe route to pituitary adenoma, with a series of significant evolutional steps. The transsphenoidal approach to pituitary adenoma is still a non-universal approach used in different centers of different areas in our country. The transsphenoidal approach has a number of variations, including the endonasal rhinoseptoplastic, transnasal displacement,
文摘Around 450 cases of acute severe hepatitis of unknown origin in children have been reported in 21 countries and region globally since April 2022,which has exceeded the past annual incidences of related regions,and has aroused wide concern.Affected patients were predominantly children under 16years of age,presented with symptoms of acute hepatitis with markedly elevated liver enzymes,and had been ruled out of common viral infections such as hepatitis A,B,C,D,and E.Similar cases have not been reported in China yet.However,considering that the severe acute hepatitis has involved worldwide areas,still with unknown origin,and incidences of severity is relatively high,we formulated this recommendation to standardize diagnosis and treatment of acute severe hepatitis of unknown origin in Peking Union Medical College Hospital,to get fully prepared to the possible public health events.
文摘Although there have been progressive advancements in the life sciences since the beginning of the 21st Century, basic medical sciences generally fail to be efficiently translated into clinical research and ultimately into clinical practice. Translational medicine has become a fashionable term de- scribing the inclination of basic science and clinical re- searchers to ultimately help patients through facilitating the incorporation of basic research findings into clinical prac- tice （Zerhouni, 2005）.
文摘Background：Female genital malformations represent miscellaneous deviations from normal anatomy.This study aimed to explore the clinical characteristics of patients who underwent surgery for genital tract malformations at Peking Union Medical College Hospital （PUMCH） during a 31-year period.Methods：We retrospectively reviewed surgical cases of congenital malformation of the female genital tract at PUMCH for a 31-year period,analyzed the clinical characteristics of 1634 hospitalized patients,and investigated their general condition,diagnosis,and treatment process.Results：The average patient age was 27.6 ± 9.9 years.The average ages of patients who underwent surgery for uterine malformation and vaginal malformation were 31.9 ± 8.8 years and 24.7 ± 9.0 years,respectively;these ages differed significantly （P 〈 0.01）.Among patients with genital tract malformation,the percentages of vaginal malformation,uterine malformation,vulva malformation,cervical malformation,and other malformations were 43.9%,43.5%,7.4%,2.3%,and 2.8%,respectively.Among patients with uterine malformation,34.5% underwent surgery for the genital tract malformation,whereas in patients with vaginal malformation,the proportion is 70.6%;the difference between the two groups was statistically significant （P 〈 0.01）.The percentage of complications of the urinary system in patients with vaginal malformations was 10.2%,which was statistically significantly higher than that （5.3%） in patients with uterine malformations （P 〈 0.01）.Conclusions：Compared to patients with uterine malformations,patients with vaginal malformations displayed more severe clinical symptoms,a younger surgical age,and a greater need for attention,early diagnosis,and treatment.Patients with genital tract malformations,particularly vaginal malformations,tend to have more complications of the urinary system and other malformations than patients with uterine malformations.
文摘To the Editor:Germ-cell tumors(GCTs)of the central nervous system(CNS),the morphologic,immunophenotypic,and(in some respects)genetic homologs of gonadal and other extraneuraxial germ-cell neoplasms,principally affect children and adolescents.[1]The diagnosis of GCT of the CNS is not difficult,and the major GCT types are germinoma,teratoma,yolk sac tumor(YST),embryonal carcinoma,and choriocarcinoma.Neoplasms harboringmultiple types are calledmixed GCT(MGCT).Peak incidence of GCT of the CNS occurs in patients aged 10 to 14 years,and a clear majority of cases of all histologic types involve males.GCT of the CNS seems to be more prevalent in eastern Asia than in Europe and the United States.[1-5]In Japan,70%of patients withGCT of CNS aged 10 to 24 years and 73%were males,[6]but there were limited Chinese patients’large-scale data,only two studies reportedmore than 100 cases.[7,8]Were the types and clinical characteristics of GCTs in the CNS in Chinese patients consistent with Japan’s?We reviewed all cases of GCTs in the CNS diagnosed by pathology in Peking Union Medical College Hospital from year 1999 to 2019.We retrospectively collected and analyzed all cases underwent optical microscopy and immunohistochemical staining examinations,aiming to summarize and analyze the clinicopathologic features of them.
基金National Key Research and Development Program of China(2016YFC0901502)CAMS Innovation Fund for Medical Sciences(2016-I2M-1-002).
文摘Percutaneous endomyocardial biopsy (EMB) is a technique that biopsy samples are obtained using bioptome through peripheral blood vessel. This technique has been used and refined more than 50 years in clinical application. Now EMB has become an important diagnostic tool in the diagnosis of myocarditis and cardiomyopathy. Department of cardiology, Peking Union Medical College Hospital (PUMCH) has performed more than 500 cases of EMB and accumulated abundant practical experience. The clinical practice guideline of percutaneous EMB in PUMCH was also established, including indications, contradictions, operation key points, sample handling and processing, post-procedure monitoring, and treatment strategy for potential complications, etc. Due to the limitation of EMB, cardiologists should collaborate with experts in echocardiography, cardiac magnetic resonance and cardiac pathology to avoid missed diagnosis and misdiagnosis. Cardiologists should pay more attention to the value of EMB and actively perform EMB to improve the diagnosis level for myocarditis and cardiomyopathy in China.
基金supported by the Educational Reform Project of Peking Union Medical College(2015zlgc0120)~~
文摘The locations and modalities of palliative care services to patients with severe/end-stage illness can be diverse,ranging from general hospitals to home-based care.The concept of palliative care hasn't been fully applied to medical practice by care providers in China's Mainland,where the seriously ill or terminal patients mainly receive medical care in hospitals.The implementation of palliative care in medical practice has developed greatly in Peking Union Medical College hospital in terms of clinical patient care,education,and research.This article gives an overview of it,and the experiences in team building,promotion,support seaking and fund raising were also discussed in this article.We hope to explore an effective dilivering model of palliative care for end-stage patients that is adaptive to Chinese culture and social environment.
基金Supported by the Non-profit Central Research Institute Fund of Chinese Academy of Medical Sciences(2019XK320027).
文摘Primary aldosteronism(PA)is the most common form of secondary hypertension,with its main manifestations including hypertension and hypokalemia.Early identification of PA is extremely important as PA patients can easily develop cardiovascular complications such as atrial fibrillation,stroke,and myocardial infarction.The past decade has witnessed the rapid advances in the genetics of PA,which has shed new light on PA treatment.While surgery is the first choice for unilateral diseases,bilateral lesions can be treated with mineralocorticoid receptor antagonists(MRAs).The next-generation non-steroidal MRAs are under investigations.New medications including calcium channel blockers,macrophage antibiotics,and aldosterone synthase inhibitors have provided a new perspective for the medical treatment of PA.
文摘Continuous renal replacement therapy(CRRT)is widely used for treating critically-ill patients in the emergency department in China.Anticoagulant therapy is needed to prevent clotting in the extracorporeal circulation during CRRT.Regional citrate anticoagulation(RCA)has been shown to potentially be safer and more effective,and is now recommended as the preferred anticoagulant method for CRRT.However,there is still a lack of unified standards for RCA management in the world,and there are many problems in using this method in clinical practice.The Emergency Medical Doctor Branch of the Chinese Medical Doctor Association(CMDA)organized a panel of domestic emergency medicine experts and international experts of CRRT to discuss RCA-related issues,including the advantages and disadvantages of RCA in CRRT anticoagulation,the principle of RCA,parameter settings for RCA,monitoring of RCA(mainly metabolic acid-base disorders),and special issues during RCA.Based on the latest available research evidence as well as the paneled experts'clinical experience,considering the generalizability,suitability,and potential resource utilization,while also balancing clinical advantages and disadvantages,a total of 16 guideline recommendations were formed from the experts'consensus.
基金National High Level Hospital Clinical Research Funding,No.2022-PUMCH-B-022CAMS Innovation Fund for Medical Sciences,No.CIFMS 2021-1-I2M-003and Undergraduate Innovation Program,No.2023zglc06076.
文摘BACKGROUND Eosinophilic gastroenteritis(EGE)is a chronic recurrent disease with abnormal eosinophilic infiltration in the gastrointestinal tract.Glucocorticoids remain the most common treatment method.However,disease relapse and glucocorticoid dependence remain notable problems.To date,few studies have illuminated the prognosis of EGE and risk factors for disease relapse.AIM To describe the clinical characteristics of EGE and possible predictive factors for disease relapse based on long-term follow-up.METHODS This was a retrospective cohort study of 55 patients diagnosed with EGE admitted to one medical center between 2013 and 2022.Clinical records were collected and analyzed.Kaplan-Meier curves and log-rank tests were conducted to reveal the risk factors for long-term relapse-free survival(RFS).RESULTS EGE showed a median onset age of 38 years and a slight female predominance(56.4%).The main clinical symptoms were abdominal pain(89.1%),diarrhea(61.8%),nausea(52.7%),distension(49.1%)and vomiting(47.3%).Forty-three(78.2%)patients received glucocorticoid treatment,and compared with patients without glucocorticoid treatments,they were more likely to have elevated serum immunoglobin E(IgE)(86.8%vs 50.0%,P=0.022)and descending duodenal involvement(62.8%vs 27.3%,P=0.046)at diagnosis.With a median follow-up of 67 mo,all patients survived,and 56.4%had at least one relapse.Six variables at baseline might have been associated with the overall RFS rate,including age at diagnosis<40 years[hazard ratio(HR)2.0408,95%confidence interval(CI):1.0082–4.1312,P=0.044],body mass index(BMI)>24 kg/m^(2)(HR 0.3922,95%CI:0.1916-0.8027,P=0.014),disease duration from symptom onset to diagnosis>3.5 mo(HR 2.4725,95%CI:1.220-5.0110,P=0.011),vomiting(HR 3.1259,95%CI:1.5246-6.4093,P=0.001),total serum IgE>300 KU/L at diagnosis(HR 0.2773,95%CI:0.1204-0.6384,P=0.022)and glucocorticoid treatment(HR 6.1434,95%CI:2.8446-13.2676,P=0.003).CONCLUSION In patients with EGE,younger onset age,longer disease course,vomiting and glucocorticoid treatment were risk factors for disease relapse,whereas higher BMI and total IgE level at baseline were protective.
基金supported by the National Natural Science Foundation of China,Nos.81941011(to XL),31771053(to HD),31730030(to XL),31971279(to ZY),31900749(to PH),31650001(to XL),31320103903(to XL),31670988(to ZY)the Natural Science Foundation of Beijing,Nos.7222004(to HD)+1 种基金a grant from Ministry of Science and Technology of China,Nos.2017YFC1104002(to ZY),2017YFC1104001(to XL)a grant from Beihang University,No.JKF-YG-22-B001(to FH)。
文摘Attempts have been made to use cell transplantation and biomaterials to promote cell proliferation,differentiation,migration,and survival,as well as angiogenesis,in the context of brain injury.However,whether bioactive materials can repair the damage caused by ischemic stroke by activating endogenous neurogenesis and angiogenesis is still unknown.In this study,we applied chitosan gel loaded with basic fibroblast growth factor to the stroke cavity 7 days after ischemic stroke in rats.The gel slowly released basic fibroblast growth factor,which improved the local microenvironment,activated endogenous neural stem/progenitor cells,and recruited these cells to migrate toward the penumbra and stroke cavity and subsequently differentiate into neurons,while enhancing angiogenesis in the penumbra and stroke cavity and ultimately leading to partial functional recovery.This study revealed the mechanism by which bioactive materials repair ischemic strokes,thus providing a new strategy for the clinical application of bioactive materials in the treatment of ischemic stroke.
基金from CAMS Innovation Fund for Medical Sciences(CIFMS)(2021-I2M-1-002)National Key Clinical Specialty Construction Project(ZK108000)+1 种基金National High-Level Hospital Clinical Research Funding(2022-PUMCH-B-024)National Natural Science Foundation of China,Joint Fund Project(U20A600).
文摘Background:A high prevalence of diabetes mellitus(DM)coexisting with autoimmune pancreatitis(AIP)is observed.However,evidence on the circumstances under which corticosteroid therapy(CST)for AIP improves or worsens DM is scarce.This study aimed to demonstrate and identify predictors of DM control under the influence of CST.Methods:Patients diagnosed with type 1 AIP were enrolled from a prospectively maintained cohort and were classified into three groups according to the chronology in which AIP and DM were diagnosed:pre-existing DM(pDM),concurrent DM(cDM),and non-DM(nDM).The responses of DM to CST were assessed when corticosteroid was ceased or tapered to a maintenance dose and classified as‘improvement’and‘non-improvement’(including‘no change’and‘exacerbation’).Results:Among 101 patients with type 1 AIP,52(51.5%)patients were complicated with DM at the time of AIP diagnosis,with 36 patients in the cDM group and 16 patients in the pDM group.The incidences of diffuse pancreatic swelling(72.2%)and pancreatic body/tail involvement(91.7%)were significantly higher in the cDM group than in both the pDM and nDM groups.Of the 52 patients with DM,CST was administered in 48 cases.Multivariate logistic analysis identified that elevated serum gamma-glutamyl transferase(GGT)level at AIP diagnosis[odds ratio(OR)=0.032,95%confidence interval(CI):0.003-0.412,P=0.008]and pancreatic atrophy after CST(OR=0.027,95%CI:0.003-0.295,P=0.003)were negatively associated with DM control improvement.Conclusions:Patients with diffuse pancreatic swelling and pancreatic body/tail involvement in pancreatitis tended to be complicated with cDM at AIP diagnosis.CST exerted a beneficial effect on the clinical course of DM in nearly half of the AIP patients complicated with DM at diagnosis,particularly in those without elevated serum GGT levels at diagnosis and who did not experience pancreatic atrophy after CST.
基金the National Key Clinical Specialty Construction Project,No.ZK108000CAMS Innovation Fund for Medical Sciences,No.2021-I2M-C&T-A-001 and No.2022-I2M-C&T-B-012.
文摘BACKGROUND Although chronic erosive gastritis(CEG)is common,its clinical characteristics have not been fully elucidated.The lack of consensus regarding its treatment has resulted in varied treatment regimens.AIM To explore the clinical characteristics,treatment patterns,and short-term outcomes in CEG patients in China.METHODS We recruited patients with chronic non-atrophic or mild-to-moderate atrophic gastritis with erosion based on endoscopy and pathology.Patients and treating physicians completed a questionnaire regarding history,endoscopic findings,and treatment plans as well as a follow-up questionnaire to investigate changes in symptoms after 4 wk of treatment.RESULTS Three thousand five hundred sixty-three patients from 42 centers across 24 cities in China were included.Epigastric pain(68.0%),abdominal distension(62.6%),and postprandial fullness(47.5%)were the most common presenting symptoms.Gastritis was classified as chronic non-atrophic in 69.9%of patients.Among those with erosive lesions,72.1%of patients had lesions in the antrum,51.0%had multiple lesions,and 67.3%had superficial flat lesions.In patients with epigastric pain,the combination of a mucosal protective agent(MPA)and proton pump inhibitor was more effective.For those with postprandial fullness,acid regurgitation,early satiety,or nausea,a MPA appeared more promising.CONCLUSION CEG is a multifactorial disease which is common in Asian patients and has non-specific symptoms.Gastroscopy may play a major role in its detection and diagnosis.Treatment should be individualized based on symptom profile.
基金Supported by National Natural Science Foundation of China,No.82072736 and No.81874184the Key Project of Hubei Health Commission,No.WJ2019Q030.
文摘BACKGROUND There is currently a shortage of accurate,efficient,and precise predictive instruments for rectal neuroendocrine neoplasms(NENs).AIM To develop a predictive model for individuals with rectal NENs(R-NENs)using data from a large cohort.METHODS Data from patients with primary R-NENs were retrospectively collected from 17 large-scale referral medical centers in China.Random forest and Cox proportional hazard models were used to identify the risk factors for overall survival and progression-free survival,and two nomograms were constructed.RESULTS A total of 1408 patients with R-NENs were included.Tumor grade,T stage,tumor size,age,and a prognostic nutritional index were important risk factors for prognosis.The GATIS score was calculated based on these five indicators.For overall survival prediction,the respective C-indexes in the training set were 0.915(95%confidence interval:0.866-0.964)for overall survival prediction and 0.908(95%confidence interval:0.872-0.944)for progression-free survival prediction.According to decision curve analysis,net benefit of the GATIS score was higher than that of a single factor.The time-dependent area under the receiver operating characteristic curve showed that the predictive power of the GATIS score was higher than that of the TNM stage and pathological grade at all time periods.CONCLUSION The GATIS score had a good predictive effect on the prognosis of patients with R-NENs,with efficacy superior to that of the World Health Organization grade and TNM stage.
基金supported by the sup-project of National Key R&D Program of China,No.2018YFA0108602CAMS Innovation Fund for Medical Sciences,No.CIFMS,2021-I2M-C&T-B-016National High Level Hospital Clinical Research Funding,No.2022-PUMCH-B-112(all to JG).
文摘Spinal cord organoids are three-dimensional tissues derived from stem cells that recapitulate the primary morphological and functional characteristics of the spinal cord in vivo.As emerging bioengineering methods have led to the optimization of cell culture protocols,spinal cord organoids technology has made remarkable advancements in the past decade.Our literature search found that current spinal cord organoids do not only dynamically simulate neural tube formation but also exhibit diverse cytoarchitecture along the dorsal-ventral and rostral-caudal axes.Moreover,fused organoids that integrate motor neurons and other regionally specific organoids exhibit intricate neural circuits that allows for functional assessment.These qualities make spinal cord organoids valuable tools for disease modeling,drug screening,and tissue regeneration.By utilizing this emergent technology,researchers have made significant progress in investigating the pathogenesis and potential therapeutic targets of spinal cord diseases.However,at present,spinal cord organoid technology remains in its infancy and has not been widely applied in translational medicine.Establishment of the next generation of spinal cord organoids will depend on good manufacturing practice standards and needs to focus on diverse cell phenotypes and electrophysiological functionality evaluation.
