BACKGROUND Venous thromboembolism(VTE)is a potentially fatal complication of hepatectomy.The use of postoperative prophylactic anticoagulation in patients who have undergone hepatectomy is controversial because of the...BACKGROUND Venous thromboembolism(VTE)is a potentially fatal complication of hepatectomy.The use of postoperative prophylactic anticoagulation in patients who have undergone hepatectomy is controversial because of the risk of postoperative bleeding.Therefore,we hypothesized that monitoring plasma D-dimer could be useful in the early diagnosis of VTE after hepatectomy.AIM To evaluate the utility of monitoring plasma D-dimer levels in the early diagnosis of VTE after hepatectomy.METHODS The medical records of patients who underwent hepatectomy at our institution between January 2017 and December 2020 were retrospectively analyzed.Patients were divided into two groups according to whether or not they developed VTE after hepatectomy,as diagnosed by contrast-enhanced computed tomography and/or ultrasonography of the lower extremities.Clinicopathological factors,including demographic data and perioperative D-dimer values,were compared between the two groups.Receiver operating characteristic curve analysis was performed to determine the D-dimer cutoff value.Univariate and multivariate analyses were performed using logistic regression analysis to identify significant predictors.RESULTS In total,234 patients who underwent hepatectomy were,of whom(5.6%)were diagnosed with VTE following hepatectomy.A comparison between the two groups showed significant differences in operative time(529 vs 403 min,P=0.0274)and blood loss(530 vs 138 mL,P=0.0067).The D-dimer levels on postoperative days(POD)1,3,5,7 were significantly higher in the VTE group than in the non-VTE group.In the multivariate analysis,intraoperative blood loss of>275 mL[odds ratio(OR)=5.32,95%confidence interval(CI):1.05-27.0,P=0.044]and plasma D-dimer levels on POD 5≥21μg/mL(OR=10.1,95%CI:2.04-50.1,P=0.0046)were independent risk factors for VTE after hepatectomy.CONCLUSION Monitoring of plasma D-dimer levels after hepatectomy is useful for early diagnosis of VTE and may avoid routine prophylactic anticoagulation in the postoperative period.展开更多
The effect of heat treatment for rice husk was investigated on the removal of arsenite in ground water by the adsorption onto the rice husk surface. The heat treatment was performed at the temperature from 80<sup&g...The effect of heat treatment for rice husk was investigated on the removal of arsenite in ground water by the adsorption onto the rice husk surface. The heat treatment was performed at the temperature from 80<sup>o</sup>C to 300<sup>o</sup>C in the closed system under anoxic environment. The continuous adsorption column method was applied for the removal of arsenite. The removal efficiency (75%) with rice husk treated at 150<sup>o</sup>C was better compared to those (54%) obtained with untreated rice husk. Therefore, the heat treatment of rice husk at relatively low temperature was effective for the enhancement of arsenic removal from water. The treatment conditions of As removal from aqueous solution were optimized. The developed treatment technique was applied into the real ground water sample in Bangladesh. The As concentration in sample water after treatment was approximately 18 and 8 μg/L, which was below the WHO guideline value of maximum admissible level of arsenic in ground water for Bangladesh (50 μg/L). The developed technique might become a potential avenue for simple and low cost arsenic removal methods.展开更多
Few potentially curative treatment options exist apart from hepatic resection for patients with huge hepatocellular carcinoma (HCC). Proton radiotherapy is a promising new modality which has an inherent antitumor effe...Few potentially curative treatment options exist apart from hepatic resection for patients with huge hepatocellular carcinoma (HCC). Proton radiotherapy is a promising new modality which has an inherent antitumor effect against HCC. However, the application of proton radiotherapy for tumors adjacent to the gastrointestinal tract is restricted because the tolerance dose of the intestine is extremely low. A novel two-step treatment was developed with surgical spacer placement and subsequent proton radiotherapy to administer proton radiotherapy with curative intent. This report presents a case of a patient with a huge unresectable HCC treated by this method who achieved disease-free survival of more than 2 years. This new strategy may potentially be an innovative and standard therapy for unresectable HCC in the near future.展开更多
Hepatic epithelioid hemangioendothelioma(HEH)is a rare neoplasm of vascular origin with variable malignant potential.Because most patients with this condition have multiple bilobar lesions,liver transplantation is the...Hepatic epithelioid hemangioendothelioma(HEH)is a rare neoplasm of vascular origin with variable malignant potential.Because most patients with this condition have multiple bilobar lesions,liver transplantation is the standard treatment,and hepatectomy is much less frequently indicated.We describe a case of a 35-yearold woman with unresectable multiple bilobar HEH successfully treated by combination treatment with hepatectomy and carbon-ion radiotherapy.This case is very meaningful since it demonstrated the effectiveness of carbon-ion radiotherapy for HEH and the possibility of expanding the curative treatment options for multiple bilobar hepatic tumors.展开更多
Background:Pancreaticoduodenectomy(PD)is a standardized strategy for patients with middle and distal bile duct cancers.The aim of this study was to compare clinicopathological features of bile duct segmen-tal resectio...Background:Pancreaticoduodenectomy(PD)is a standardized strategy for patients with middle and distal bile duct cancers.The aim of this study was to compare clinicopathological features of bile duct segmen-tal resection(BDR)with PD in patients with extrahepatic cholangiocarcinoma.Methods:Consecutive cases with extrahepatic cholangiocarcinoma who underwent BDR(n=21)or PD(n=84)with achievement of R0 or R1 resection in Kobe University Hospital between January 2000 and December 2016 were enrolled in the present study.Results:Patients who underwent PD were significantly younger than those receiving BDR.The frequency of preoperative jaundice,biliary drainage and cholangitis was not significantly different between the two groups.The duration of surgery was longer and there was more intraoperative bleeding in the PD than in the BDR group(553 vs.421 min,and 770 vs.402 mL;both P<0.01).More major complications(>Clavien-DindoⅢa)were observed in the PD group(46%vs.10%,P<0.01).Postoperative hospital stay was also longer in that group(30 vs.19 days,P=0.02).Pathological assessment revealed that tumors were less advanced in the BDR group but the rate of lymph node metastasis was similar in both groups(33%in BDR and 48%in PD,P=0.24).The rate of R0 resection was significantly higher in the PD group(80%vs.38%,P<0.01).Adjuvant chemotherapy was more frequently administered to patients in the BDR group(62%vs.38%,P=0.04).Although 5-year overall survival rates were similar in both groups(44%for BDR and 51%for PD,P=0.72),in patients with T1 and T2,the BDR group tended to have poorer prognosis(44%vs.68%at 5-year,P=0.09).Conclusions:BDR was comparable in prognosis to PD in middle bile duct cancer.Less invasiveness and lower morbidity of BDR justified this technique for selected patients in a poor general condition.展开更多
BACKGROUND Radiological detection of small liver metastasis or peritoneal metastasis is still difficult,and some patients with biliary tract cancer(BTC)are unresectable after laparotomy.Staging laparoscopy may help av...BACKGROUND Radiological detection of small liver metastasis or peritoneal metastasis is still difficult,and some patients with biliary tract cancer(BTC)are unresectable after laparotomy.Staging laparoscopy may help avoid unnecessary laparotomy.However,which category of BTC is amenable with staging laparoscopy remains unclear.AIM To clarify the risk factors for occult metastasis in patients with BTC.METHODS Medical records of patients with BTC who underwent surgery at our institution between January 2008 and June 2014 were retrospectively reviewed.The patients were divided into two groups,according to resection or exploratory laparotomy(EL).Preoperative laboratory data,including inflammation-based prognostic scores and tumor markers,were compared between the two groups.Prognostic importance of detected risk factors was also evaluated.RESULTS A total of 236 patients were enrolled in this study.Twenty-six(11%)patients underwent EL.Among the EL patients,there were 16 cases of occult metastasis(7 liver metastases and 9 abdominal disseminations).Serum carcinoembryonic antigen level,carbohydrate antigen 19-9 level,neutrophil-lymphocyte ratio and modified Glasgow prognostic score were significantly higher in the EL group than in the resected group,and these factors were prognostic.Among these factors,carcinoembryonic antigen>7 ng/mL was the most useful to predict occult metastasis in BTC.When patients have more than three of these positive factors,the rate of occult metastasis increases.CONCLUSION Inflammation-based prognostic scores and tumor markers are useful in detecting occult metastasis in BTC;based on these factors,staging laparoscopy may reduce the rate of EL.展开更多
基金This study was reviewed and approved by the Ethics Committee of the Kobe University Graduate School of Medicine(Provided ID Number:B210306).
文摘BACKGROUND Venous thromboembolism(VTE)is a potentially fatal complication of hepatectomy.The use of postoperative prophylactic anticoagulation in patients who have undergone hepatectomy is controversial because of the risk of postoperative bleeding.Therefore,we hypothesized that monitoring plasma D-dimer could be useful in the early diagnosis of VTE after hepatectomy.AIM To evaluate the utility of monitoring plasma D-dimer levels in the early diagnosis of VTE after hepatectomy.METHODS The medical records of patients who underwent hepatectomy at our institution between January 2017 and December 2020 were retrospectively analyzed.Patients were divided into two groups according to whether or not they developed VTE after hepatectomy,as diagnosed by contrast-enhanced computed tomography and/or ultrasonography of the lower extremities.Clinicopathological factors,including demographic data and perioperative D-dimer values,were compared between the two groups.Receiver operating characteristic curve analysis was performed to determine the D-dimer cutoff value.Univariate and multivariate analyses were performed using logistic regression analysis to identify significant predictors.RESULTS In total,234 patients who underwent hepatectomy were,of whom(5.6%)were diagnosed with VTE following hepatectomy.A comparison between the two groups showed significant differences in operative time(529 vs 403 min,P=0.0274)and blood loss(530 vs 138 mL,P=0.0067).The D-dimer levels on postoperative days(POD)1,3,5,7 were significantly higher in the VTE group than in the non-VTE group.In the multivariate analysis,intraoperative blood loss of>275 mL[odds ratio(OR)=5.32,95%confidence interval(CI):1.05-27.0,P=0.044]and plasma D-dimer levels on POD 5≥21μg/mL(OR=10.1,95%CI:2.04-50.1,P=0.0046)were independent risk factors for VTE after hepatectomy.CONCLUSION Monitoring of plasma D-dimer levels after hepatectomy is useful for early diagnosis of VTE and may avoid routine prophylactic anticoagulation in the postoperative period.
文摘The effect of heat treatment for rice husk was investigated on the removal of arsenite in ground water by the adsorption onto the rice husk surface. The heat treatment was performed at the temperature from 80<sup>o</sup>C to 300<sup>o</sup>C in the closed system under anoxic environment. The continuous adsorption column method was applied for the removal of arsenite. The removal efficiency (75%) with rice husk treated at 150<sup>o</sup>C was better compared to those (54%) obtained with untreated rice husk. Therefore, the heat treatment of rice husk at relatively low temperature was effective for the enhancement of arsenic removal from water. The treatment conditions of As removal from aqueous solution were optimized. The developed treatment technique was applied into the real ground water sample in Bangladesh. The As concentration in sample water after treatment was approximately 18 and 8 μg/L, which was below the WHO guideline value of maximum admissible level of arsenic in ground water for Bangladesh (50 μg/L). The developed technique might become a potential avenue for simple and low cost arsenic removal methods.
文摘Few potentially curative treatment options exist apart from hepatic resection for patients with huge hepatocellular carcinoma (HCC). Proton radiotherapy is a promising new modality which has an inherent antitumor effect against HCC. However, the application of proton radiotherapy for tumors adjacent to the gastrointestinal tract is restricted because the tolerance dose of the intestine is extremely low. A novel two-step treatment was developed with surgical spacer placement and subsequent proton radiotherapy to administer proton radiotherapy with curative intent. This report presents a case of a patient with a huge unresectable HCC treated by this method who achieved disease-free survival of more than 2 years. This new strategy may potentially be an innovative and standard therapy for unresectable HCC in the near future.
文摘Hepatic epithelioid hemangioendothelioma(HEH)is a rare neoplasm of vascular origin with variable malignant potential.Because most patients with this condition have multiple bilobar lesions,liver transplantation is the standard treatment,and hepatectomy is much less frequently indicated.We describe a case of a 35-yearold woman with unresectable multiple bilobar HEH successfully treated by combination treatment with hepatectomy and carbon-ion radiotherapy.This case is very meaningful since it demonstrated the effectiveness of carbon-ion radiotherapy for HEH and the possibility of expanding the curative treatment options for multiple bilobar hepatic tumors.
文摘Background:Pancreaticoduodenectomy(PD)is a standardized strategy for patients with middle and distal bile duct cancers.The aim of this study was to compare clinicopathological features of bile duct segmen-tal resection(BDR)with PD in patients with extrahepatic cholangiocarcinoma.Methods:Consecutive cases with extrahepatic cholangiocarcinoma who underwent BDR(n=21)or PD(n=84)with achievement of R0 or R1 resection in Kobe University Hospital between January 2000 and December 2016 were enrolled in the present study.Results:Patients who underwent PD were significantly younger than those receiving BDR.The frequency of preoperative jaundice,biliary drainage and cholangitis was not significantly different between the two groups.The duration of surgery was longer and there was more intraoperative bleeding in the PD than in the BDR group(553 vs.421 min,and 770 vs.402 mL;both P<0.01).More major complications(>Clavien-DindoⅢa)were observed in the PD group(46%vs.10%,P<0.01).Postoperative hospital stay was also longer in that group(30 vs.19 days,P=0.02).Pathological assessment revealed that tumors were less advanced in the BDR group but the rate of lymph node metastasis was similar in both groups(33%in BDR and 48%in PD,P=0.24).The rate of R0 resection was significantly higher in the PD group(80%vs.38%,P<0.01).Adjuvant chemotherapy was more frequently administered to patients in the BDR group(62%vs.38%,P=0.04).Although 5-year overall survival rates were similar in both groups(44%for BDR and 51%for PD,P=0.72),in patients with T1 and T2,the BDR group tended to have poorer prognosis(44%vs.68%at 5-year,P=0.09).Conclusions:BDR was comparable in prognosis to PD in middle bile duct cancer.Less invasiveness and lower morbidity of BDR justified this technique for selected patients in a poor general condition.
文摘BACKGROUND Radiological detection of small liver metastasis or peritoneal metastasis is still difficult,and some patients with biliary tract cancer(BTC)are unresectable after laparotomy.Staging laparoscopy may help avoid unnecessary laparotomy.However,which category of BTC is amenable with staging laparoscopy remains unclear.AIM To clarify the risk factors for occult metastasis in patients with BTC.METHODS Medical records of patients with BTC who underwent surgery at our institution between January 2008 and June 2014 were retrospectively reviewed.The patients were divided into two groups,according to resection or exploratory laparotomy(EL).Preoperative laboratory data,including inflammation-based prognostic scores and tumor markers,were compared between the two groups.Prognostic importance of detected risk factors was also evaluated.RESULTS A total of 236 patients were enrolled in this study.Twenty-six(11%)patients underwent EL.Among the EL patients,there were 16 cases of occult metastasis(7 liver metastases and 9 abdominal disseminations).Serum carcinoembryonic antigen level,carbohydrate antigen 19-9 level,neutrophil-lymphocyte ratio and modified Glasgow prognostic score were significantly higher in the EL group than in the resected group,and these factors were prognostic.Among these factors,carcinoembryonic antigen>7 ng/mL was the most useful to predict occult metastasis in BTC.When patients have more than three of these positive factors,the rate of occult metastasis increases.CONCLUSION Inflammation-based prognostic scores and tumor markers are useful in detecting occult metastasis in BTC;based on these factors,staging laparoscopy may reduce the rate of EL.
