Effect of percutaneous transhepatic one-step biliary fistulation combined with rigid choledochoscopy in the treatment of benign hepatic bile duct strictures / 中华肝胆外科杂志

Objective:To investigate the therapeutic effect of percutaneous transhepatic one-step biliary fistulation (PTOBF) combined with rigid choledochoscopy in the treatment of benign hepatic bile duct strictures.Methods:The clinical data of 46 patients with hepatic ductal stenosis and stones undergoing PTOBF combined with rigid choledochoscopy at the First Hospital of Guangzhou Medical University between September 2016 and September 2022 were retrospectively analyzed, including 20 males and 26 females, aged (48.5±17.6) years. The location of stones and strictures, stone retrieval rate, postoperative complications, stricture release rate, stone recurrence rate, and reoperation rate were analyzed to access the safety and effectiveness of this procedure.Results:A total of 58 sites of stenoses were found in 46 patients, and PTOBF lithotripsy combined with rigid choledochoscopy were performed for 77 times. The early postoperative complication rate was 19.6% (9/46), and the stenosis release rate was 93.5% (43/46). The mean follow-up time was (28.1±19.6) months, the complete stone retrieval rate was 91.3% (42/46), the stone recurrence rate was 19.6% (9/46), the reoperation rate was 8.7% (4/46), and the long-term postoperative complication rate was 6.5% (3/46).Conclusion:PTOBF combined with rigid choledochoscopic stenoplasty for benign hepatic duct strictures is a safe and feasible procedure to reduce the stone recurrence and long-term postoperative complications.

Effects of definitive repair surgery on health-related quality of life in patients with bile duct injury after laparoscopic cholecystectomy / 中华消化外科杂志

Objective@#To investigate the effects of definitive repair surgery on health-related quality of life (HRQOL) in patients with bile duct injury after laparoscopic cholecystectomy (LC).@*Methods@#The retrospective case-control study was conducted. The clinicopathological data of 181 patients with bile duct injury caused by LC for benign gallbladder diseases who underwent definitive repair surgery and 50 patients without complications after LC for benign gallbladder diseases in the Mianyang Central Hospital from January 2000 to December 2017 were collected. There were 82 males and 99 females of 181 patients with bile duct injury, aged from 31 to 68 years, with an average age of 47 years. Definitive repair surgery was performed according to different types of bile duct injury, and questionnaire of HRQOL was conducted preoperatively and one year after operation. There were 18 males and 32 females of 50 patients without complications after LC, aged from 35 to 69 years, with an average age of 41 years. Questionnaire of HRQOL was conducted on LC patients without complications one year after operation. Observation indicators: (1) classification of bile duct injury; (2) intraoperative situations of definitive repair surgery; (3) postoperative situations of definitive repair surgery; (4) follow-up; (5) results of the SF-36 scale assessment. Follow-up was conducted by outpatient examination and telephone interview up to December 2018. Patients were reexamined liver function and color Doppler ultrasonography once every 6-12 months, and further magnetic resonance cholangiopancreatography (MRCP) or computed tomography examination to detect recurrence of anastomotic biliary stricture and cholangitis. Measurement data with normal distribution were expressed as Mean±SD, and comparison between groups was analyzed by the paired t test. Measurement data with skewed distribution were described as M (range), and count data were described as absolute numbers.@*Results@#(1) Classification of bile duct injury: of the 181 patients with bile duct injury, there were 64 cases of E1 type, 70 cases of E2 type, 35 cases of E3 type, 9 cases of E4 type, and 3 cases of E5 type. (2) Intraoperative situations of definitive repair surgery: all the 181 patinets with bile duct injury underwent definitive repair surgery successfully, including 61 undergoing end-to-end biliary anastomosis, 109 undergoing Roux-en-Y choledojejunostomy, 11 undergoing hemi-hepatectomy combined with Roux-en-Y anastomosis. There were 52 patients combined with hilar cholangioplasty. The operation time and volume of intraoperative blood loss of 181 patients were (190±126) minutes and 601.5 mL (range, 150.0-2 100.0 mL). There were 24 cases with blood transfusion and 18 cases with T-tube stent. (3) Postoperative situations of definitive repair surgery: 40 of 181 patients had complications, including 14 cases of incisional infection, 10 cases of bile leakage, 8 cases of perihepatic effusion, 7 cases of pulmonary infection, and 1 case of abdominal hemorrhage. The patient with postoperative abdominal hemorrhage underwent reoperation for hemostasis, and other patients with complications were cured after ultrasound-guided puncture and drainage or conservative treatment. Duration of postoperative hospital stay of 181 patients with bile duct injury was 12.6 days (range, 6.0-34.0 days). There was no perioperative death occurred. (4) Follow-up: 157 of 181 patients were followed up for 8.2-201.3 months, with a median follow-up time of 92.7 months. Twenty-eight patients had anastomotic stricture recurred, 16 of which were treated with reoperation, 10 were treated with endoscopic stent implantation, and 2 cases were treated with balloon dilatation in interventional department; the stricture was repaired again in all cases. Thirteen patients had recurrent cholangitis, showing no obvious anastomotic stricture on MRCP, and symptoms can be effectively controlled after conservative treatment. (5) Results of the SF-36 scale assessment: 181 patients with bile duct injury completed the SF-36 scales before definitive repair surgery, and 157 completed one year after definitive repair surgery. All the 50 patients without complications completed SF-36 scales one year after LC. The scores of HRQOL in physiological function, role functioning, somatic pain, general health, vitality, social function, emotional function, mental health, the scores of physical component summary, and mental component summary of 181 patients with bile duct injury before surgery were 79±15, 65±12, 40±17, 42±14, 59±20, 27±15, 48±23, 56±22, 60±11, and 56±11, respectively. The above indices one year after definitive repair surgery were 87±10, 78±15, 71±20, 64±20、68±19, 70±25, 67±21, 69±23, 71±13, 68±15, respectively. The above indices of 50 patients without complications one year after LC were 90±13, 81±20, 87±16, 72±20, 73±15, 86±17, 79±22, 77±19, 82±18, 79±18, respectively. The 181 patients with bile duct injury had significant elevation in above indices one year after definitive repair surgery (t=2.051, 2.016, 3.875, 3.014, 2.563, 3.225, 2.964, 2.357, 2.150, 2.203, P<0.05). The 50 patients without complications also had significant elevation in above indices one year after definitive repair surgery (t=2.817, 2.206, 3.641, 3.112, 3.202, 3.310, 3.011, 2.899, 2.150, 2.118, P<0.05). There were significant differences in the general health and mental health one year after definitive repair surgery between 181 patients with bile duct injury and 50 patients without complications (t=2.014, 2.011, P<0.05), and no significant difference in the physiological function, role functioning, somatic pain, vitality, social function, or emotional function between the two groups (t=0.852, 0.915, 0.907, 1.102, 1.284, 1.120, 0.863, 1.109, P>0.05).@*Conclusion@#Definitive repair surgery can significantly improve HRQOL in patients with bile duct injury caused by LC.

Effects of definitive repair surgery on health-related quality of life in patients with bile duct injury after laparoscopic cholecystectomy / 中华消化外科杂志

Objective To investigate the effects of definitive repair surgery on health-related quality of life (HRQOL) in patients with bile duct injury after laparoscopic cholecystectomy (LC).Methods The retrospective case-control study was conducted.The clinicopathological data of 181 patients with bile duct injury caused by LC for benign gallbladder diseases who underwent definitive repair surgery and 50 patients without complications after LC for benign gallbladder diseases in the Mianyang Central Hospital from January 2000 to December 2017 were collected.There were 82 males and 99 females of 181 patients with bile duct injury,aged from 31 to 68 years,with an average age of 47 years.Definitive repair surgery was performed according to different types of bile duct injury,and questionnaire of HRQOL was conducted preoperatively and one year after operation.There were 18 males and 32 females of 50 patients without complications after LC,aged from 35 to 69 years,with an average age of 41 years.Questionnaire of HRQOL was conducted on LC patients without complications one year after operation.Observation indicators:(1) classification of bile duct injury;(2) intraoperative situations of definitive repair surgery;(3) postoperative situations of definitive repair surgery;(4) follow-up;(5) results of the SF-36 scale assessment.Follow-up was conducted by outpatient examination and telephone interview up to December 2018.Patients were reexamined liver function and color Doppler ultrasonography once every 6-12 months,and further magnetic resonance cholangiopancreatography (MRCP) or computed tomography examination to detect recurrence of anastomotic biliary stricture and cholangitis.Measurement data with normal distribution were expressed as Mean±SD,and comparison between groups was analyzed by the paired t test.Measurement data with skewed distribution were described as M (range),and count data were described as absolute numbers.Results (1) Classification of bile duct injury:of the 181 patients with bile duct injury,there were 64 cases of E1 type,70 cases of E2 type,35 cases of E3 type,9 cases of E4 type,and 3 cases of E5 type.(2) Intraoperative situations of definitive repair surgery:all the 181 patinets with bile duct injury underwent definitive repair surgery successfully,including 61 undergoing end-to-end biliary anastomosis,109 undergoing Roux-en-Y choledojejunostomy,11 undergoing hemi-hepatectomy combined with Roux-en-Y anastomosis.There were 52 patients combined with hilar cholangioplasty.The operation time and volume of intraoperative blood loss of 181 patients were (190±126) minutes and 601.5 mL (range,150.0-2 100.0 mL).There were 24 cases with blood transfusion and 18 cases with T-tube stent.(3) Postoperative situations of definitive repair surgery:40 of 181 patients had complications,including 14 cases of incisional infection,10 cases of bile leakage,8 cases of perihepatic effusion,7 cases of pulmonary infection,and 1 case of abdominal hemorrhage.The patient with postoperative abdominal hemorrhage underwent reoperation for hemostasis,and other patients with complications were cured after ultrasound-guided puncture and drainage or conservative treatment.Duration of postoperative hospital stay of 181 patients with bile duct injury was 12.6 days (range,6.0-34.0 days).There was uo perioperative death occurred.(4) Follow-up:157 of 181 patients were followed up for 8.2-201.3 months,with a median follow-up time of 92.7 months.Twenty-eight patients had anastomotic stricture recurred,16 of which were treated with reoperation,10 were treated with endoscopic stent implantation,and 2 cases were treated with balloon dilatation in interventional department;the stricture was repaired again in all cases.Thirteen patients had recurrent cholangitis,showing no obvious anastomotic stricture on MRCP,and symptoms can be effectively controlled after conservative treatment.(5) Results of the SF-36 scale assessment:181 patients with bile duct injury completed the SF-36 scales before definitive repair surgery,and 157 completed one year after definitive repair surgery.All the 50 patients without complications completed SF-36 scales one year after LC.The scores of HRQOL in physiological function,role functioning,somatic pain,general health,vitality,social function,emotional function,mental health,the scores of physical component summary,and mental component summary of 181 patients with bile duct injury before surgery were 79±15,65±12,40±17,42±14,59±20,27±15,48±23,56±22,60±11,and 56±11,respectively.The above indices one year after definitive repair surgery were 87±10,78±15,71±20,64±20、68± 19,70 ± 25,67 ± 21,69 ± 23,71 ± 13,68 ± 15,respectively.The above indices of 50 patients without complications one year after LC were 90±13,81±20,87±16,72±20,73±15,86±17,79±22,77±19,82±18,79 ± 18,respectively.The 181 patients with bile duct injury had significant elevation in above indices one year after definitive repair surgery (t=2.051,2.016,3.875,3.014,2.563,3.225,2.964,2.357,2.150,2.203,P＜0.05).The 50 patients without complications also had significant elevation in above indices one year after definitive repair surgery (t=2.817,2.206,3.641,3.112,3.202,3.310,3.011,2.899,2.150,2.118,P＜0.05).There were significant differences in the general health and mental health one year after definitive repair surgery between 181 patients with bile duct injury and 50 patients without complications (t =2.014,2.011,P＜0.05),and no significant difference in the physiological function,role functioning,somatic pain,vitality,social function,or emotional function between the two groups (t=0.852,0.915,0.907,1.102,1.284,1.120,0.863,1.109,P＞0.05).Conclusion Definitive repair surgery can significantly improve HRQOL in patients with bile duct injury caused by LC.

Hepato-intestinal anastomosis in the treatment of complex stricture of high bile duct / 中华普通外科杂志

Objective To evaluate hepato-intestinal anastomosis in the treatment of complex stricture of high bile duct.Methods From Jan 2010 to Dec 2016,43 patients undergoing traditional biliary-intestinal anastomosis were grouped into control,45 patients undergoing hepato-intestinal anastomosis were allocated into study group.Results (1) Control vs study grounp,the operative time was (24 ±3)min vs.(15 ± 3)min,intraoperative blood loss and blood transfusion were (384 ± 51)ml vs.(280 ± 41) ml,(649 ± 3) ml vs.(454 ± 8) ml,number of patients with intraoperative blood transfusion,and liver resection were 10 vs.3,and 8 vs.3 respectively,with statistically differences (t =12.48,10.46,144.65,x2 =43.68,49.50,all P ＜ 0.05).(2) Postoperatively efficacy:fever was in 7 vs.3 cases,incision infection in 5 vs.3 cases,abdominal infection was in 5 vs.2 cases,biliary fistula was in 7 vs.3 cases,number of un-planed readmission was in 7 vs.3 cases,and postoperative hospital stay were (14.3 ± 1.5) d vs.(10.7 ± 0.7) d,respectively,between the control group and the study group,with statistically differences (x2 =52.55,58.91,62.23,52.55,52.55,t =16.28,all P ＜0.05).(3) Follow-up situation:all the 88 patients were followed-up for 6 to 96 months (median time,30 months).Biliary restenosis occurred in 5 vs.1 patients between the control group and the study group,respectively,with statistically differences (x2 =65.64,P ＜ 0.05).Conclusions Hepato-intestinal anastomosis is effective in the treatment of complex stricture of high bile duct.

Clinical features and surgical repair of posthepatectomy bile duct strictures / 中华肝胆外科杂志

Objective To analyze the clinical features and definitive repair strategies of bile duct strictures after hepatectomy.Methods The clinical data of patients undergoing definite repair for bile duct strictures after hepatectomy in the PLA General Hospital from 2000 to 2014 and Beijing Tsinghua Changgung Hospital from 2014 to 2017 were retrospectively collected.Results Twenty-one patients with bile duct stricture after hepatectomy were treated with reoperation.Among them,13 cases showed continuous bile leakage after operation.The types of hepatectomy include 10 cases of left or extended left hemihepatectomy,7 cases of right or extended right hemihepatectomy,2 cases of mesohepatectomy,and 2 cases of hepatic caudate labectomy.According to classification formulated by the Biliary Surgery Group of Chinese Medical Association,the types of injuries of the patients included four of Ⅱ 2,twelve of Ⅱ 3,and five of Ⅱ 4 respectively.19 of 21 patients underwent definitive repair with hepaticojejunostomy.The long-term follow-up success rate was 89.0％.Conclusions Biliary injury after hepatectomy in which the injury affects the secondary or below hepatic ducts requires surgical repair.Hepaticjejunostomy is an effective definitive repair method.Hepaticjejunostomy for bile duct stenosis after right hemihepatectomy always need to dissect the left intrahepatic bile duct by a hilar plate approach or UPV approach,due to the effect of hepatic portal transposition.Surgical repair for bile duct stenosis after the left hepatectomy,always need the incision of the right anterior and right posterior hepatic duct,due to extensive injuries of hepatic duct.

Application value of biliary stent in endoscopic retrograde cholangio pancreatography for treatment of benign biliary stricture after liver transplantation / 中华消化外科杂志

Objective To explore the application value of plastic biliary stent and fully covered self-expandable metallic stent (FCSEMS) in endoscopic retrograde cholangio pancreatography (ERCP) for treatment of benign biliary stricture after liver transplantation.Methods The retrospective cross-sectional study was conducted.The clinical data of 54 patients with benign biliary stricture after liver transplantation undergoing ERCP treatment who were admitted to the First Affiliated Hospital of Xi'an Jiaotong University between January 2010 and August 2016 were collected.Among 54 patients,44 had simple anastomotic stricture and 10 had non-anastomotic stricture.All the patients underwent stent implantation by ERCP.Patients with stricture within 1 month postoperatively initially selected single plastic stent or endoscopic nasobiliary drainage (ENBD),and then changed into multiple plastic stents at the second stent replacement.Patients with stricture after 1 month postoperatively selected multiple plastic stents,multiple plastic stents after balloon dilation or FCSEMS.Observation indicators:ERCP situations,stent implantation,time of stent indwelling,postoperative complications,stent dislocation,treatment outcome and follow-up situations.Patients were followed up by outpatient examination and telephone interview up to November 2016.Clinical symptoms of patients were observed within 1 month postoperatively and liver function and abdominal ultrasound were retested.Liver function and remission degree of biliary stricture were monitored regularly once every 3 months.Measurement data were described as average (range).Results All the patients underwent successful ERCP,of which 53 completed the process of ERCP and 1 rejected treatment due to economic problems.All the 54 patients received 140 times ERCPs with an average of 2.59 times per person,21 times ENBDs,11 times FCSEMSs and 108 times plastic stent implantations (including 35 times single stent implantations,46 times double stents implantations,23 times 3-stents implantations and 4 times 4-stents implantations).All the 54 patients were followed up for 3-143 months,with an average time of 73 months.Of 44 with anastomotic stricture,34 received plastic stent implantation and 98 times ERCPs,with an average number of stent implantation of 2 (range,1-4) and an average time of stent indwelling of 10.7 months (range,9.0-13.0months);the postoperative acute pancreatitis,biliary infection,hyperamylasemia and adverse stent implantation or dislocation were detected in 4 persons every time,7 persons every time,10 persons every time and 3 persons every time,respectively;26 patients were cured and 5 were improved,with an effective rate of 91.2％ (31/34);3 patients with noneffective treatment continued to undergo ERCP and 3 patients had recurrence of anastomotic stricture.Among 10 patients with initial FCSEMS implantation,12 times ERCPs were performed,with an average time of stent indwelling of 7.6 months (range,6.0-12.0 months);postoperative biliary infection,hyperamylasemia and stent dislocation were detected in 1 person every time,1 person every time and 1 person every time,respectively;8 patients were cured,with an effective rate of 8/10;of 2 patients with persistent stricture,1 patient received contrast examination after stent removal,showing a comparative stricture in level 1 branch of intrahepatic duct and considering combined ischaemia,and then underwent the second implantation using multiple plastic stents;the other patient had elevated level of jaundice at 3 months after stents removal and received ERCP,showing anastomotic inflammatory polyp,and then underwent FCSEMS implantation again.Ten patients with non-anastomotic stricture received plastic stent implantation and 30 times ERCPs,with an average number of stent implantation of 3 (range,2-4) and an average time of stent indwelling of 11.3 months (range,10.0-14.0 months);the postoperative acute pancreatitis,biliary infection,hyperamylasemia and adverse stent implantation or dislocation were detected in 2 persons every time,5 persons every time,2 persons every time and 1 person every time,respectively;3 patients were cured and 3 were improved,with an effective rate of 6/10;of 4 patients with noneffective treatment,2 died of gradually deteriorating liver function and 2 underwent the second liver transplantation.Conclusions Stent implantation in ERCP is safe and effective for treatment of benign biliary stricture after liver transplantation,single plastic stent should be used in the early period (within 1 month) and multiple plastic stents should be used in the later period.Although FCSEMS has a higher displacement rate,it should be recommended due to a better clinical effect,lower incidence of complications and simple operation.For patients with non-anastomotic stricture,plastic stent should be used for extrahepatic biliary stricture,with a good clinical effect,and there is worse effect in stent implantation through ERCP for multiple intrahepatic biliary strictures.

A new biodegradable stent made of magnesium alloyin preventing stenosis in the common bile duct probe / 西安交通大学学报(医学版)

Objective To design a new type of biliary stent to be used in the common bile duct probe and evaluate its biocompatibility, safety and effectiveness in a canine model.Methods Magnesium alloy (AZ 31B) was used to make biliary stents.A canine model of acute obstructive jaundice was established by ligating the distal end of the common bile duct.These dogs were divided into two groups with either placement of magnesium stent or not.The incidence of bile duct leakage and survival were evaluated.Meanwhile, we determined the concentration of magnesium in various body fluids and organs, liver function test, and ultrasonic and histological studies.Results The concentrations of magnesium in the blood, feces, liver, heart, brain and lungs were similar between the two groups.Bile leakage rate in experimental group and control group was 0％ and 16.7％, respectively.The mortality was 16.7％ and 33.3％.There were no significant differences in ALP and TBIL between experimental group and control group (P>0.05) before building and bile duct exploration.There were significant differences in ALP andTBIL between the two groups one and three months after bile duct probe (P<0.05).Biliary tract specimens showed obviously anastomotic stenosis performances and expansion performances of extrahepatic biliary in the control group, but in experimental group such changes were not observed.Ultrasonography showed that the patency of biliary anastomosis was good and there was no anastomotic biliary stricture in experimental group.However, progressive stenosis and expansion performances of extrahepatic biliary occurred in control group.There were fewer collagen fibers but more muscle fibers in experimental group than in control group.Conclusion Biliary stent made of magnesium alloy is of good biocompatibility and has the potential to prevent the postoperative stenosis in the common bile duct probe.

Iatrogenic biliary stricture: a disastrous mistake in biliary surgery / 中华消化外科杂志

Traumatic biliary stricture,usually iatrogenic during biliary surgeries,is still a disastrous mistake because of its serious consequences.As the rapid development of hepatic surgery and liver transplantation and widespread use of laparoscopic cholecystectomy,patterns of traumatic biliary stricture changes in result as more complicated.In the future,more will be expected from the changes of the view point that the biliary system is actually an organ rather than merely an excretory duct,and,further more,the preservation of integrity of physiological function of the biliary tract should be considered during surgical repair.A simplified classification of bile duct injuries and biliary stricture is presented for discussion.

A Case of Malignant Biliary Stricture Mimicking Benign Stricture coincided with Clonorchis sinensis / 대한췌담도학회지

Accurate and early diagnosis of indeterminate bile duct stricture is difficult. There are numerous cases suggesting similarity between benign tumors and malignancy. Therefore, meticulous evaluation with endoscopic retrograde cholangiopancreatography (ERCP), endoscopic ultrasound and computed tomography (CT) is necessary. A 50 year-old male presented with painless jaundice. Abdominal CT scan showed distal biliary stricture without definite pancreatic mass. Repeated brush cytology and endobiliary biopsy during ERCP did not reveal malignancy except for eggs of Clonorchis sinensis. The patient declined surgical resection without definite evidence of malignancy. Abdominal CT scan one month later showed progressive parenchymal atrophy and pancreatic duct dilatation. The patient underwent pylorus preserving pancreatoduodenectomy. Pathology revealed pancreatic adenocarcinoma in the head portion. Since accurate preoperative diagnosis of malignant biliary obstruction can be evasive, patients with biliary stricture should undergo evaluation with high index of suspicion.

Surgical Treatment of Obstructive Jaundice Caused by Bile Duct Strictures after Hepatic Transcatheter Arterial Chemoembolization / 华中科技大学学报(医学版)

Objective To examine the surgical treatments for obstructive jaundice caused by bile duct strictures after hepat-ic transcatheter arterial chemoembolization(TACE).Methods Clinical data were retrospectively analyzed of 9 patients who de-veloped bile duct strictures among 229 patients after TACE between June 1994 and March 2011 in People’s Hospital of Zhe-jiang Provincial and the Second Affiliated Hospital of Zhejiang University.There were 6 cases of primary liver cancer,and 3 ca-ses of metastatic liver cancer.Obstructive jaundice occurred 5 to 16 months after TACE treatment.The median time was 8 months.Results All the nine patients with bile duct strictures suffered different degrees of obstructive j aundice,which was cured after surgical operations or PTC + stenting in 7 patients and significantly relieved by percutaneous transhepatic cholangic drainage(PTCD)in 2 ones.Two patients with obstructive j aundice after TACE for primary liver cancer were followed up for 3 years,and no recurrence of hepatic carcinoma and bile duct obstruction was found.The other 7 patients were followed up for 3 to 13 months,and they all died of deterioration of primary disease.Conclusion Patients with obstructive jaundice caused by bile duct strictures after TACE benefit from surgical operations or intervention treatment.Different surgical strategies are selected based on the characteristics of primary disease,the site and extent of bile duct stricture.

The value of biliary tumor markers for differentiatial diagnosis of benign and malignant biliary diseases / 中华消化内镜杂志

Objective To investigate the value of biliary tumor markers for differential diagnosis of the benign and malignant biliary tract diseases.Methods Tumor markers (CA19-9,CEA and CA242) examination and bacterial culture were performed in a total of 160 patients,who underwent therapeutic endoscopic retrograde cholangiopancreatography (ERCP) for biliary diseases.Resuts There were significant differences between malignant group and benign group in bile and serum in the level of CA19-9,CEA and CA242 (P ＜0.05) ; Cut-off value,according to ROC curve,was 239 ku/l in CA19-9,40 ng/ml in CEA and 60 ku/ml in CA242,respectively.There were significant differences between the bile marker and the serum marker in sensitivity,accuracy,negative predicative value of CEA (P ＜ 0.05).No significant differences was found in specificity between the serum group and the bile group.There were significant differences in bile CA19-9 level between cholangiocarcinoma,pancreatic cancer,duodenal papilla carcinoma with carcinoma metastasizing to bile duct,and hepatocellular carcinoma (P ＜ 0.05).Both in benign group and malignant group,there were significant differences in CA19-9 level between infectious bile and noninfectious bile (P ＜ 0.05).Conclusion The level of CA19-9,CEA and CA242 in bile can be applied to differentiate benign and malignant biliary diseases.The bile tumor markers do not have advantage over serum tumor markers in specificity for diagnosis.Bile bacterial infection can result in the elevation of bile CA19-9 while it does not have impact on differential diagnosis.

Tamoxifen decreases the myofibroblast count in the healing bile duct tissue of pigs

OBJECTIVE: The aim of this study was to evaluate the effect of oral tamoxifen treatment on the number of myofibroblasts present during the healing process after experimental bile duct injury. METHODS: The sample consisted of 16 pigs that were divided into two groups (the control and study groups). Incisions and suturing of the bile ducts were performed in the two groups. Tamoxifen (20 mg/day) was administered only to the study group. The animals were sacrificed after 30 days. Quantification of myofibroblasts in the biliary ducts was made through immunohistochemistry analysis using anti-alpha smooth muscle actin of the smooth muscle antibody. Immunohistochemical quantification was performed using a digital image system. RESULTS: In the animals treated with tamoxifen (20 mg/day), there was a significant reduction in immunostaining for alpha smooth muscle actin compared with the control group (0.1155 vs. 0.2021, p = 0.046). CONCLUSION: Tamoxifen reduced the expression of alpha smooth muscle actin in the healing tissue after bile duct injury, suggesting a decrease in myofibroblasts in the scarred area of the pig biliary tract. These data suggest that tamoxifen could be used in the prevention of biliary tract stenosis after bile duct surgeries.

Analysis of Biliary Stricture after ABO Incompatible Adult Living Donor Liver Transplantation / 대한이식학회지

BACKGROUND: Despite recent improvements in survival outcome after ABO incompatible (ABOi) adult living donor liver transplantation (ALDLT), concerns about the incidence of biliary stricture (BS) still exist. However, reports on the actual incidence of BS have been scarce. METHODS: From November 2008 to August 2011, 77 cases of ABOi ALDLTs have been performed. We compared patient and graft survival and BS-free survival rates (BSFSR) between these ABOi ALDLTs and 734 ABO compatible (ABOc) ALDLTs performed during the same period. We also analyzed characteristics of BS in ABOi ALDLT. RESULTS: There was one mortality (1.3%) and one re-transplantation (due to small-for-size graft syndrome) among 77 cases of ABOi ALDLTs. Overall, 1-, 2-, and 3-year patient survival rates were 94.8%, comparable to ABOc ALDLTs (93.7%, 90.1%, 90.1%, P=0.20). BS occurred in 11 (13.8%) ABOi ALDLT patients. There were no significant differences in 1-, 2-, and 3-year BSFSR between ABOi and ABOc ALDLT patients (87.5% vs. 88.1%, 83.4% vs. 87.5%, and 83.4% vs. 86.4%, P=0.55). Among 10 patients with BS, four patients showed diffuse multiple intrahepatic strictures, which were linked to the death of two patients. CONCLUSIONS: The survival outcome of ABOi ALDLT is comparable to ABOc ALDLT. The incidence of BS of ABOi ALDLT was not superior to that of ABOc ALDLT. However, ABO incompatibility is related to the development of diffuse multiple intrahepatic BSs (rarely seen in ABOc ALDLT) and can cause graft failure and patient death.

Narrow band imaging cholangioscopy in hilar cholangiocarcinoma.

Per oral cholangioscopy has been developed as a diagnostic modality for evaluation of bile duct lesions. Per oral cholangioscope with narrow band imaging (NBI) system can provide good quality images of bile duct lesions. There is limited data on per oral cholangioscopy using NBI in biliary tract diseases. We report our experience of NBI cholangioscopy in hilar strictures.

Type IV-A Choledochal Cyst with Intrahepatic Bile Duct Stricture

Choledochal cysts are rare congenital anomalies of the bile ducts. They consist of cystic dilatations of the extrahepatic biliary tree, intrahepatic radicles, or both. The standard treatment of choledochal cyst is complete excision of cyst and drainage procedure. I report a case of 48-year-old women who was diagnosed with type IV-A choledochal cyst with intrahepatic bile duct stricture and large stones in extrahepatic choledochal cyst. Sixteen years ago, she received a cholecystectomy and Reux-en Y cystojejunostomy due to choledochal cyst. Because of the intrahepatic bile duct stricture I performed a left hepatectomy, complete cyst excision and hepaticojejunostomy. I report this case with a review of the literature.

Endoscopic treatment of biliary duct damage / 国际外科学杂志

Objective To explore for the methede and effect of endoscopic treatment on biliary leakage and biliary duct damage. Methods All patients with biliary damage such as biliary leakage and biliary duct stricture were treated by endoscopic sphincoterotomy and endoscopic nasobiliary drainage (ENBD) during abdominal cavity drainage ENBD was removd when biliary leakage healed and abdominal cavity drainage ceased for 1～2 weeks were confirmed. Plastic stents were implanted to distend the biliary duct stricture for 2-3 months. Results Twenty-six patients with biliary leakage were cured 3-4 weeks after ENBD. Fourteen out of 17 patients implanted with plastic stent were recovered uneventfully after stent removed, and 4 patients also recovered after installation of double-stents for 3 months, while another case with calculus and stricture of left hepatic duct in spite of implantation of simple-stent suffered repeatedly from biliary tract infection and one case developed hepatic abscess after repeatedly infection for one year before he had the hepatic lobectomy. Conclution Endoscopic therapy is the first choice in treating biliary leakage or secondary duct stricture.

Mechanism about bile duct strictures after liver transplantation / 国际外科学杂志

Biliary complications are a serious problem in patients after liver transplantation, which often results in graft loss, the causes of bile duct stricture are complex. This paper reviewed the mechanism of bile duet stricture after liver transplantation. This complication maybe related with various factors such as liver arterial thrombosis, loss of blood supply of bile duct, warm iscbemia/preservation injury, chronic ductopenic rejection, cytomegalovirus infection, ABO incompatibility, and recurrence of primary sclerosing cholangitis.

The Outcome of Endoscopic Treatment in Bile Duct Injury after Cholecystectomy / 대한소화기학회지

BACKGROUND/AIMS: Bile duct injury is the most serious complication of cholecystectomy. The aim of this study was to evaluate the outcome of endoscopic treatment in bile duct injury after cholecystectomy. METHODS: We reviewed the results of endoscopic treatments in the patients diagnosed as bile duct injury after cholecystectomy on cholangiographic examinations, retrospectively. Endoscopic treatment included insertion of nasobiliary drainage catheter or plastic stent after endoscopic sphicterotomy. RESULTS: A total of twenty-two patients (9 male, 13 female; median age of 59 years) with bile duct injury were included. Endoscopic treatment was successfully performed in 12 of 13 patients with bile leak only. In patients with both bile leak and stricture, endoscopic treatment was successful in 2 of 3 patients. In 6 patients with complete obstruction of bile duct, endoscopic treatment failed and surgical approach was needed. In our series, transpapillary endoscopic treatment was not successful when proximal bile duct above the injured site was not visualized by endoscopic retrograde cholangiopancreatography (ERCP) and surgery was performed in all cases. Overall success rate of endoscopic treatment in 22 patients with bile duct injury was 64% (14/22). There was no complication associated with endoscopic treatment. CONCLUSIONS: ERCP is useful for the treatment of bile leakage after cholecystectomy and can be used for the treatment prior to surgery. Surgical intervention is needed in case of endoscopic treatment failure.

Surgical Treatment of the Intrahepatic Lithiasis Combined with High Hepatic Duct Strictures / 中国普外基础与临床杂志

Objective To discuss the effective surgical treatment of intrahepatic lithiasis combined with high hepa-t ic duct strictures. Methods Two hundreds and sixteen cases of intra hepatic lithiasis and high hepatic duct strictures treated in this hospital fr om January 1993 to October 2002 were analysed retrospectively.Results One hundred and eighty- three cases underwent different selective operation by selected time; 33 case s complicated with acute obstructive suppurative cholangitis underwent emergency were performed single biliary drainage, in which 30 cases were re-operated. Th e operative procedure were: hepatic lobectomy,high cholangiotomy and plastic repair,exposure of hepatic duct of the 2nd and the 3rd order,and plastic re pair with own patch and choledochojejunostomy.Two hundreds and six cases w ere cured,the curative rate was 95.4%; 8 cases improved (3.7 %), and 2 cases died (0.9%).Conclusion The best effective surgical treat ment of intrahpatic lithiasis is hepatic lobectomy. Exposure of hepatic duct of the 2nd and the 3rd order is a satisfactory to release the hepatic duct str ictures and to clear the intrahepatic lithiasis. For patients with normal extr ahepatic bile duct and Oddi's function, plastic repair of bile duct with own patch is possible to keep the normal form and function. Cholang ioscopy may play an important role in the treatment of intrahepatic tr act lithiasis during operation.

A prospective clinical study on the role of endoscopic diagnosis and treatment of biliary leakages in patients with liver transplantation / 中华消化内镜杂志

Objective To observe prospectively the role of endoscopic diagnosis and treatment of biliary leakages in patients with liver transplantation, and the incidence of bile duct stricture after healing of the leakage. Methods Six eases of T-tube leakage and seven cases of anastomosis leakage complicating liver transplantation were enrolled in this prospective study. Six patients treated by endoscopic plastic stent placement , 2 by naso-biliary catheter drainage, 2 by papillosphincterotomy and 3 by naso-biliary catheter drainage combined with plastic stent placement. Some patients received growth hormone treatment. Results The bile leak resolution time was between 10-35 days in 10 patients with complete document. The median time of leak resolution was 15. 3 days. Four cases of anastomosis stricture, three cases of common hepatic duct and one ease of multiple bile duct stenosis were observed by followed-up nasobiliary catheter cholangiography or ER-CP. Conclusion Endoscopic nasobiliary catheter or plastic stent placement is a safe and effective treatment for bile duct stricture occurred after bile leak resolution in most of liver transplantation patients. Naso-biliary catheter combined with plastic stent placement maybe the best choice for treating bile leak, because, theoretically, it may prevent serious condition happened at accidental nasobiliary catheter dislocation, and it may have prophylactic effect on upcoming bile duct stricture and should be further confirmed.