Incidence of hepaticojejunostomy stricture after hepaticojejunostomy. Surgery. 2016;160:691-698. [PMID: 27392391 DOI: 10.1016/j.surg.2016.05.021]

Safety and Efficacy of Covered Self-Expandable Metallic Stent for Choledochojejunal Anastomotic Stricture: A Multi-Center Retrospective Cohort Study

BACKGROUND

Benign choledochojejunal anastomotic stricture (CJS) is a complication of pancreaticoduodenectomy and choledochojejunostomy. Typically managed with endoscopic balloon dilatation, CJS has a high recurrence rate. Covered metallic stent (CMS) placement is a potential alternative; however, a comprehensive evaluation is lacking.

OBJECTIVES

The aim of this study was to evaluate the treatment outcomes of CMS placement in patients with CJS.

METHODS

We retrospectively analyzed patients who underwent balloon dilation via endoscopic retrograde cholangiopancreatography using a double-balloon endoscope for CJS between October 2010 and October 2023. The study outcomes included technical and clinical success rates, adverse event rates, choledochojejunal anastomotic stricture recurrence rates, and time to recurrence for balloon dilation and CMS treatment for CJS.

RESULTS

There were 43 patients, 55 procedures (40 balloon dilation and 15 CMS placement). The technical and clinical success rates were 100% for both treatments. Recurrence of CJS was observed in 35% (14/40) of the patients in the balloon dilation group. The recurrence rate was significantly higher in the balloon dilation group than in the CMS group (35% vs. 0%, p = 0.006). The time to CJS recurrence was significantly shorter in the balloon dilation group than in the covered metallic stent group (NR vs. NR, p = 0.03).

CONCLUSION

Placement of CMS for treating patients with CJS was demonstrated to be an effective and safe method with a lower recurrence rate than balloon dilation.

Benign hepaticojejunostomy strictures after pancreatoduodenectomy

PURPOSE

To determine the causes of benign hepaticojejunostomy strictures (BHSs) after pancreaticoduodenectomy (PD) and the outcome of endoscopic retrograde cholangiography (ERC) treatment for BHSs.

METHODS

A total of 175 patients who underwent PD between January 2013 and December 2020 and who were followed up for at least 1 year were included. Preoperative data, operative outcomes, and postoperative courses were compared between the BHS group and the group of patients who did not develop stenosis during follow-up (non-BHS group). The course of treatment in the BHS group was also examined.

RESULTS

BHS occurred in 13 of 175 patients (7.4%). Multivariate analysis of the BHS and non-BHS groups revealed that male sex (OR; 3.753, 95% CI; 1.029-18.003, P = 0.0448) and a preoperative bile duct diameter less than 8.8 mm (OR; 7.51, 95% CI; 1.75-52.40, P = 0.0053) were independent risk factors for the development of BHS. In the BHS group, all patients underwent ERC using enteroscopy. The success rate of the ERC approach to the bile duct was 92.3%. Plastic stents were inserted in 6 patients, and metallic stents were inserted in 3 patients. The median observation period since the last ERC was 17.9 months, and there was no recurrence of stenosis in any of the 13 patients.

CONCLUSIONS

Patients with narrow bile ducts are at greater risk of BHS after PD. Recently, BHS after PD has been treated with ERC-related procedures, which may reduce the burden on patients.

Prognosis of Postoperative Cholangitis Following Pancreaticoduodenectomy: A Single-Centered Retrospective Cohort Study

Introduction Postoperative cholangitis (POC) after pancreaticoduodenectomy is a serious complication. However, the prognostic factors are unclear. We aimed to investigate the relationships between biliary lesions and prognosis in patients with cholangitis after pancreaticoduodenectomy. Methods We conducted a single-centered retrospective cohort study. The unit of analysis was hospital admissions. We extracted patients who underwent pancreaticoduodenectomy from 2010 to 2018, and have a record of hospitalization of cholangitis from January 2010 to October 2019. We defined the bile duct lesions as the presence of one of the following: biliary stent, intrahepatic bile duct dilatation, intrahepatic bile duct stones, or common bile duct stones on imaging studies. The primary outcome was the treatment failure of POC. We defined the failure as a composite outcome of death within 30 days of initiation of treatment, relapse during treatment, or recurrence of cholangitis. We used logistic regression analysis to examine the association between the presence of bile duct lesions and the occurrence of outcomes. Results Of 154 admissions included in the present study, 120 cases (77.9%) were with bile duct lesions. Bile duct lesions were associated with the treatment failure (crude odds ratio [OR] 2.56, 95% confidence intervals [CI] 1.08 to 6.32; adjusted OR 2.81, 95%CI 1.08 to 7.34). Conclusions Clinicians should follow the patient of POC with bile duct lesions on imaging carefully because of the high risk of treatment failure, especially for recurrence. Further studies are warranted to confirm our results.

How to do it: rescue duct-to-duct biliary reconstruction techniques to avoid severe biliary complications of hepatic resection for hepatocellular carcinoma

There are few reports on duct-to-duct biliary reconstruction for complex liver resection with limited bile duct resection. We performed duct-to-duct biliary reconstruction in two patients undergoing limited bile duct resection where Roux-en-Y hepaticojejunostomy (HJ) was difficult. An external biliary drainage tube was placed routinely at the anastomotic site to prevent stenosis. In case 1, the tumor-infiltrated part of the left hepatic duct (LHD) was resected and the LHD was repaired using duct-to-duct reconstruction with interrupted sutures. In case 2, after the tumor-infiltrated part of the LHD and posterior hepatic duct (PHD) were resected, T-tube reconstruction was performed on the PHD, and the LHD was anastomosed using interrupted sutures for the posterior wall and a round ligament patch for the anterior wall. Our literature review suggests that an external biliary drainage tube with stenting over the anastomosis may reduce the risk of biliary complications.

Continuous versus interrupted anastomotic technique for the hepaticojejunostomy: a prospective cohort study

Background

Interrupted sutures is the gold standard technique of hepaticojejunostomy (HJ) for bilioenteric anastomosis. This study compares the safety and early complications of continuous and interrupted suture HJ.

Methods

A prospective study involving all elective HJ between September 2019 and June 2021 was conducted. Patients with type IV or V biliary strictures, duct diameter less than 8 mm and/or associated vascular injury, and bilateral HJ were excluded. The study patients were divided into two random groups; interrupted and continuous anastomotic technique. Patient demographics, preoperative parameters including pathology (benign vs. malignant), HJ leak, suture time, and postoperative morbidity were recorded.

Results

Total 34 patients were enroled. Eighteen (52.9%) were into interrupted and 16 (47.1%) patients into the continuous group. Both the groups were comparable with regards to demographics, haemoglobin, serum albumin, preoperative cholangitis and biliary stenting. Total three (8.8%) patients in the entire study developed bile leak; interrupted-2 and continuous-1, which was not significant statistically (P=1.0). Similarly, total number of sutures used and the mean operating time to complete anastomosis in the continuous group was significantly lesser than the interrupted group (2.3±0.5 versus 9.6±1.6, P<0.001) and (16.2±3.1 versus 38.6±9.2 min, P<0.001), respectively. There were three (18.8%) re-exploration in the continuous anastomotic technique. Among them, only one re-operation was due to HJ anastomosis failure without mortality, remaining had re-exploration for bleeding (non-HJ).

Conclusions

Both the techniques is safe with comparable morbidity. Further, continuous has an added advantage of decreased anastomotic time and cost.

The Clinical Features of Late Postoperative Cholangitis After Hepaticojejunostomy Brought on by Conditions other than Cancer Recurrence

PURPOSE

Postoperative cholangitis and anastomotic strictures (AS) are long-term complications of biliary-enteric anastomosis (BEA).

METHODS

We retrospectively reviewed data of patients who underwent bile duct resection with or without hepatectomy and investigated the risk factors for postoperative cholangitis, benign AS, and incidence of Clavien-Dindo (C-D) >Grade III complications.

RESULTS

Overall, data of 189 patients (115 men and 74 women) were retrospectively analyzed. The median patient age was 73 years. Thirty-five patients (18.5%) developed postoperative cholangitis, and 16 (8.4%) developed postoperative AS. Male sex and serious postoperative complications (C-D ≥ Grade III) were independent risk factors for cholangitis. The incidence of serious postoperative complications was 32.3%. Hypertension, preoperative biliary drainage, C-reactive protein-albumin ratio ≥.22, and bile duct resection with hepatectomy were potential risk factors for serious postoperative complications.

CONCLUSIONS

The incidence rates of postoperative cholangitis and AS after BEA were 18.5% and 8.4%, respectively. Male sex and serious postoperative complications (C-D ≥ Grade III) were independent risk factors for postoperative cholangitis.

Risk factors for recurrent stenosis after balloon dilation for benign hepaticojejunostomy anastomotic stricture

BACKGROUND/AIMS

Hepaticojejunostomy anastomotic stricture (HJAS) is a feared adverse event associated with hepatopancreatobiliary surgery. Although balloon dilation for benign HJAS during endoscopic retrograde cholangiopancreatography with balloon-assisted enteroscopy has been reported to be useful, the treatment strategy remains controversial. Therefore, we evaluated the outcomes and risk factors of recurrent stenosis after balloon dilation alone for benign HJAS.

METHODS

We retrospectively analyzed consecutive patients who underwent balloon-assisted enteroscopy-endoscopic retrograde cholangiopancreatography for benign HJAS at our institution between July 2014 and December 2020.

RESULTS

Forty-six patients were included, 16 of whom had recurrent HJAS after balloon dilation. The patency rates at 1 and 2 years after balloon dilation were 76.8% and 64.2%, respectively. Presence of a residual balloon notch during balloon dilation was an independent predictor of recurrence (hazard ratio, 2.80; 95% confidence interval, 1.01-7.78; p=0.048), whereas HJAS within postoperative 1 year tended to be associated with recurrence (hazard ratio, 2.43; 95% confidence interval, 0.85-6.89; p=0.096). The patency rates in patients without a residual balloon notch were 82.1% and 73.1% after 1 and 2 years, respectively.

CONCLUSION

Balloon dilation alone may be a viable option for patients with benign HJAS without residual balloon notches on fluoroscopy.

The robotic-assisted laparoscopic approach to biliary tract resection and reconstruction for benign indications: A single-center experience

BACKGROUND

Benign biliary disease (BBD) is a prevalent condition involving patients who require extrahepatic bile duct resections and reconstructions due to nonmalignant causes.

METHODS

This study followed all patients who underwent biliary resections for BBD between 2015 and 2023. We excluded those with malignant conditions and patients who had an 'open' operation. Based on the patient's anatomy, the procedures employed were either robotic Roux-en-Y hepaticojejunostomy (RYHJ) or robotic choledochoduodenostomy (CDD).

RESULTS

From the 33 patients studied, 23 were female, and 10 were male. Anesthesiology (ASA) class was 3 ± 0.5; the MELD score was 9 ± 4.1; the Child-Pugh score was 6 ± 1.7. The primary indications for undergoing the operation included iatrogenic bile duct injuries, biliary strictures, and type 1 choledochal cysts. The average surgical duration was about 272 min, and the average blood loss amounted to 79 mL. Postoperatively, three patients experienced major complications, all attributed to anastomotic leaks. The average hospital stay was 4 days, with a readmission rate of 15% within 30 days. During an average follow-up period of 33 months, one patient had to undergo a revision at 18 months due to stricture. This necessitated further duct resection and reanastomosis. Notably, there were no reported hepatectomies, no conversion to the 'open' method, no intraoperative complications, and no mortalities.

CONCLUSIONS

Robotic extrahepatic bile duct resection and reconstruction with Roux-en-Y hepaticojejunostomy or choledochoduodenostomy is safe with an acceptable postoperative morbidity, short hospital length of stay, and low postoperative stricture rate at intermediate duration follow-up.

Study protocol for a prospective, multicentre, phase II trial on endoscopic treatment using two fully covered self-expandable metallic stents for benign strictures after hepaticojejunostomy

INTRODUCTION

The current endoscopic treatment for postoperative benign hepaticojejunostomy anastomotic stricture (HJAS) has a high technical success rate and is highly effective in the short term. However, long-term results have shown a high rate of stenosis recurrence, which indicates an insufficient response to treatment. Three prospective studies on fully covered self-expandable metallic stent (FC-SEMS) treatment for benign HJAS used the stenosis resolution rate as the primary endpoint, and no study has yet used the long-term non-stenosis rate (at 12 months) as the primary endpoint.

METHODS AND ANALYSIS

We launched the 'saddle-cross study', which will be conducted as a multicentre, prospective intervention of endoscopic treatment using two modified FC-SEMSs (BONASTENT️ M-Intraductal) that have been improved for benign stenosis in patients with benign HJAS, with the long-term non-restenosis rate (at 12 months) as the primary endpoint. This study aims to evaluate the long-term non-restenosis rate (at 12 months) and safety of the saddle-cross technique for benign HJAS. We plan to enrol 50 participants.

ETHICS AND DISSEMINATION

This study has been approved by the Certified Review Board of the National Cancer Center, Japan (CRB3180009). The results will be reported at various conferences and published in international peer-reviewed journals.

The Use of Oblique-viewing Endoscopic Ultrasound for Accessing the Afferent Limb for Endoscopic Ultrasound-guided Biliary Drainage in Patients with Severe Stenotic Hepaticojejunal Anastomosis: One Case and Literature Review

BACKGROUND

The treatment of hepaticojejunal anastomotic strictures in patients with surgically altered anastomosis is challenging. Endoscopic ultrasound (EUS)-guided biliary drainage is being established as a feasible biliary drainage procedure. How can oblique-viewing endoscopic ultrasound (OV-EUS) safely reach the treatment area in the afferent limb for EUS-guided hepaticojejunostomy? This is a key, meaningful, and challenging question.

METHODS

A unique case of an OV-EUS-guided hepaticojejunostomy performed in a patient with severe stenotic hepaticojejunal anastomosis was reported, and the relevant literatures were reviewed.

RESULTS

There are only 3 previous case reports of EUS-guided transanastomotic drainage using OV-EUS. The above 3 cases reported did not elaborate on the key treatment details of the procedure. Especially how can the OV-EUS safely reach the treatment area in the afferent limb?

CONCLUSIONS

For patients with severe anastomotic stricture, when the retrograde or antegrade guide wire cannot pass through the stenosis to establish biliary drainage, OV-EUS can safely reach the treatment area in the afferent limb under the guidance of a fluoroscopic view and a guide wire. Thus, an OV-EUS-guided hepaticojejunostomy can be achieved.

The short- and long-term outcome after the surgical management of common bile duct stones in a tertiary referral hospital

BACKGROUND

The removal of common bile duct stones by endoscopic retrograde cholangiopancreatography (ERCP) shows excellent results with low complication rates and is therefore considered a gold standard. However, in case of stones non-removable by ERCP, surgical extraction is needed. The surgical approach is still controversial and clinical guidelines are missing. This study aims to analyze the outcomes of patients treated with choledochotomy or hepaticojejunostomy for common bile duct stones.

METHODS

All patients who underwent choledochotomy or hepaticojejunostomy for common bile duct stones at a tertiary referral hospital over 11 years were included. The analyzed data contains basic demographics, diagnostics, surgical parameters, length of hospitalization, and morbidity and mortality.

RESULTS

Over the study period, 4375 patients underwent cholecystectomy, and 655 received an ERCP with stone extraction, with 48 of these patients receiving subsequent surgical treatment. ERCP was attempted in 23/30 (77%) of the choledochotomy patients pre/intraoperatively and 11/18 (56%) in hepaticojejunostomy patients. The 30-day major complication rate (Clavien-Dindo > II) was 1/30 (3%) in the choledochotomy group and 2/18 (11%) in the hepaticojejunostomy group. Complications after 30 days occurred in 3/30 (10%) patients and 2/18 (11%), respectively, and no mortality occurred.

CONCLUSION

ERCP should still be considered the gold standard, although due to low short- and long-term morbidity rates, choledochotomy and hepaticojejunostomy represent effective surgical solutions for common bile duct stones.

Long- and short-term outcomes of balloon dilation for benign choledochojejunal anastomotic stricture using balloon endoscopy-assisted ERCP: a multi-center retrospective cohort study

BACKGROUND

Benign choledochojejunal anastomotic stricture (CJS) is a common complication of pancreaticoduodenectomy and choledochojejunostomy. CJS is generally treated with balloon dilation, using balloon endoscopy-assisted endoscopic retrograde cholangiopancreatography (BE-ERCP); however, its long- and short-term outcomes have not been fully evaluated. Therefore, we evaluated the treatment outcomes of balloon dilation with BE-ERCP for CJS.

METHODS

We retrospectively analyzed 40 patients who had undergone balloon dilation with BE-ERCP for CJS between January 2009 and December 2022. The primary outcomes were technical and clinical success, and adverse event rates of balloon dilation using BE-ERCP for CJS. The secondary outcomes were long-term treatment outcomes for CJS recurrence, and evaluation of risk factors for recurrence.

RESULT

Technical and clinical success rates were 93% (37/40) and 100% (37/37), respectively. CJS recurrence occurred in 32% (20/37). No procedure-related adverse events were observed. The significant risk factors of CJS after balloon dilation were its early occurrence after surgery (unit hazard ratio [HR] for month, 0.87; 95% confidence interval [CI], 0.76-0.99; p-value = 0.04) and residual waist during balloon dilation (HR, 5.46; 95% CI, 1.18-25.1; p-value = 0.03). Receiver operating characteristic curve analysis of time from surgery to balloon dilation revealed an area under the curve of 0.80 (95% CI, 0.65-0.94) and the cut-off value was 13.2 months.

CONCLUSION

Treatment of CJS with balloon dilation was effective, although CJS recurrence occurred in one-third of the patients. The risk factors for recurrence were early occurrence of CJS after surgery and remaining waist circumference during balloon dilation.

Duodenojejunostomy for endoscopic management of biliary enteric anastomotic stricture inaccessible via balloon-assisted endoscopy: a case report

BACKGROUND

Stricture formation is a long-term complication of biliary enteric anastomosis (BEA). BEA stricture often causes recurrent cholangitis and lithiasis, can significantly affect quality of life, and promote the development of life-threatening complications. In this report, duodenojejunostomy and subsequent endoscopic management as an alternative surgical technique for strictures of the BEA is described.

CASE PRESENTATION

Case 1: An 84-year-old man who underwent left hepatic trisectionectomy for hilar cholangiocarcinoma 6 years prior presented with fever and jaundice. Computed tomography (CT) revealed intrahepatic lithiasis. The patient was diagnosed with postoperative cholangitis secondary to intrahepatic lithiasis. Balloon-assisted endoscopy could not reach the anastomotic site, and stent insertion failed. A biliary access route was hence created via duodenojejunostomy. After the jejunal limb and duodenal bulb were identified, duodenojejunostomy was performed using a side-to-side continuous layer-to-layer suture. The patient was discharged without serious complications. Endoscopic management through duodenojejunostomy was successfully performed, and intrahepatic stones were completely removed. Case 2: A 75-year-old man who underwent bile duct resection for hilar cholangiocarcinoma 6 years prior was diagnosed with postoperative cholangitis due to intrahepatic lithiasis. Removal of the intrahepatic stones was attempted using balloon-assisted endoscopy; however, the endoscope could not reach the anastomotic site. The patient underwent duodenojejunostomy and subsequent endoscopic management. The patient was discharged without complications. Two weeks after the operation, the patient underwent endoscopic retrograde cholangiography through the duodenojejunostomy and the intrahepatic lithiasis was removed.

CONCLUSIONS

Duodenojejunostomy allows easy endoscopic access to a BEA. Duodenojejunostomy and subsequent endoscopic management may be an alternative treatment option in patients with BEA strictures that are inaccessible via balloon-assisted endoscopy.

A Novel Minimally Invasive technique for dilatation of hepaticojejunostomy stricture: A case report

Using a nephroscope in a laparoscopic operation to relieve the hepaticojejunostomy stricture (HJS) by transjejunal dilatation is a minimally invasive and applicable method. It can be used as the first step for such patients.

Safety and feasibility of a novel recanalization technique using guidewire puncture under cholangioscopy for complete biliary stricture after liver transplantation

Cholangioscopy is reportedly useful for selective guidewire placement across difficult biliary strictures, but few methods are available for complete stricture of biliary anastomosis. This study aimed to propose a guidewire puncture technique to recanalize totally obstructed anastomosis and discuss its safety and feasibility. From January 2015 to December 2021, a total of 11 patients with complete biliary anastomotic stricture after liver transplantation were enrolled. These patients underwent peroral single operator cholangioscopy (SpyGlass), whereas two failed cases on SpyGlass finally underwent percutaneous transhepatic cholangioscopy (PTCS). The steps of the recanalization technique were as follows: the stricture was viewed carefully to detect the closure point (CP) of the scar endoscopically, then the CP was targeted by the hard tip of the guidewire and broke through under guidance of the cholangioscope and fluoroscope. Complete occlusions were confirmed by SpyGlass in all cases. A total of 13 hard-tip guidewire punctures were performed under cholangioscopy, and ten punctures were successful (technical success rate, 76.9% [10/13]). After recanalization of the occluded anastomosis, plastic stent or metallic stent was deployed in three and seven patients, respectively. No procedure-related complications occurred during or after the cholangioscopy-assisted guidewire puncture. After a mean follow-up of 12 months, stents had been removed in five patients. The other six patients were still receiving stent treatment. This study demonstrated that the guidewire puncture technique under cholangioscopy is safe and feasible for complete stricture of biliary anastomosis, and the success rate is satisfactory.

Clinicopathologic characteristics and long-term prognosis of intraductal papillary neoplasm of the bile duct: a retrospective study

BACKGROUND

Intraductal papillary neoplasm of the bile duct (IPNB) is a premalignant neoplasm that can involve both the intrahepatic and extrahepatic bile ducts. Owing to the low incidence and confusing nomenclature, its clinicopathological features remain controversial. Additionally, only a few studies have reported on the long-term prognosis of IPNB to date. Therefore, the present study aimed to clarify the clinicopathological characteristics and prognosis of IPNB.

METHODS

Medical records of patients with IPNB treated at our hospital between August 2000 and October 2021 were retrospectively reviewed. A database of demographic characteristics, test results, surgical details, pathological findings, and follow-up information was constructed for analysis. Patients were divided into intrahepatic and extrahepatic groups, and dysplasia and invasive carcinoma groups for comparison. Differences between study groups were analyzed using the χ² test, Fisher's exact test, t-test, or Mann-Whitney U test, as appropriate. Cumulative survival rates were estimated using the Kaplan-Meier method.

RESULTS

In total, 43 patients (21 men and 22 women) with IPNB were included in the study. The median age at diagnosis was 62 (54-69) years. Thirty-eight patients underwent surgery. The mean operation time was (269.5 ± 94.9) min. Five patients underwent endoscopic retrograde cholangiopancreatography for biopsy. Twenty-one and 22 patients had intrahepatic and extrahepatic lesions, respectively. The extrahepatic group had more patients with intraluminal masses (p = 0.021) and abnormal bilirubin levels (p = 0.001), but fewer patients with hepatolithiasis (p = 0.021). The operation time was longer in patients with extrahepatic lesions (p = 0.002). Twenty patients had dysplasia and 23 had invasive carcinoma. The invasive carcinoma group had a longer operation time than the dysplasia group (p = 0.004). As of March 2022, 39 patients were followed up, with a mean follow-up time of (56.2 ± 38.2) months. Fifteen patients survived without tumors, two survived with tumors, and 22 patients died. The 1-, 3-, 5-, and 10-year cumulative overall survival rates were 86.9%, 65.8%, 49.8%, and 32.0%, respectively.

CONCLUSIONS

IPNB is a rare bile duct disease that occurs mainly in patients with advanced age. Surgery is the primary treatment strategy. Intrahepatic and extrahepatic lesions, as well as dysplasia and invasive carcinoma have their own unique characteristics. The long-term prognosis of IPNB is generally poor.

Minimally invasive biliary anastomosis after iatrogenic bile duct injury: a systematic review

Major bile duct injuries (BDIs) may require complex surgical repairs that are usually performed with a conventional open approach. This study aims to analyze current evidence concerning the safety and the outcomes of the minimally invasive (MI) approach for biliary anastomosis in post-cholecystectomy BDIs. A systematic search of MEDLINE, Embase, and Web-Of-Science indexed studies involving MI (laparoscopic or robotic) biliary anastomosis in patients with iatrogenic BDIs was performed. The quality of the studies was assessed using the MINORS criteria. A total of 13 studies involving 198 patients were included. One hundred and twenty-five patients (63.1%) underwent a laparoscopic biliary anastomosis, while 73 (36.1%) received an analogue robotic procedure. All the included BDIs were types D and E (E1-E5). The mean OT varied between 190 and 330 (mean = 227) minutes. Ten studies reported the mean intraoperative blood loss that ranged between 50 and 252 (mean = 135.9) mL. No conversions occurred in the robotic series, while four patients required conversion to open surgery among the laparoscopic ones. The mean length of postoperative hospital stay was 6.3 days. The reported overall morbidity was similar among the robotic and laparoscopic series. During the follow-up period, no surgery-related mortality occurred. A growing number of referral centers are showing the safety and feasibility of the MI approach for biliary anastomosis in patients with major BDIs. Further prospective comparative studies are needed to draw more definitive conclusions.

[Endoscopic retrograde cholangiopancreatography in patients after bilioenteric anstomosis]

OBJECTIVE

To distinguish clinical features, safety and efficiency of endoscopic retrograde cholangiopancreatography (ERCP) in patients after bilioenteric anstomosis based on retrospectively analyzed clinical data and endoscopy procedures.

METHODS

Data extracted from patients after bilioenteric anstomosis due to biliary disease treated with ERCP from January 2005 to December 2021 in the Department of Gastroenterology, Peking University Third Hospital were retrospectively analyzed. Clinical data and endoscopic pictures were reevaluated and analyzed. The patients were divided into three groups, including the patients with choledochoduodenostomy (CDD), Roux-en-Y hepaticojejunostomy (RYHJ) and Whipple. Differences between ERCP success and failure were conducted.

RESULTS

In the study, 89 cases with 132 ERCP procedures were involved, 9-80 years old, median 57 years old, containing 4 CDD, 30 RYHJ, 54 Whipple and 1 bile duct ileocecal anastomosis patients; The time between ERCP and surgery were 30 (1-40), 2.75 (0.5-14), 2 (0.3-19), and 10 years, respectively; The time between surgery and symptom were 240 (3-360), 12 (1-156), 22 (0-216), and 60 months, respectively. Fifty percent of CDD could succeed only under local anaesthesia, RYHJ (96.7%) and Whipple (100.0%) needed under general anaesthesia (P < 0.001). Successful first entry rates of CDD, RYHJ and Whipple were 100.0%, 40.0% and 77.8%, respectively. After changing the endoscopy type, successful entry rate could increase to 43.3% of RYHJ and 83.3% of Whipple. The successful entry rate of different anastomotic methods was significant (P < 0.001). The cannulation success rates of CDD, RYHJ and Whipple were 100.0%, 53.8% and 86.7% respectively, with significant difference between the groups (P=0.031). ERCP success rates of CDD, RYHJ and Whipple were 100.0%, 33.3% and 78.8% respectively, with significant difference between the groups (P < 0.001). Complications were found in 23.9% (21/88) patients, including infection (14.8%), pancreatitis (9.2%), bleeding (3.4%), and perforation (2.3%) ranked by incidence. Causes of ERCP in post bilioenteric anstomosis were anastomotic stenosis (50.0%, benign 39.3%, malignant 10.7%), choledocholithiasis (37.5%) and reflux cholangitis (12.5%). Anastomotic method was the only predicting factor of ERCP success in patients after bilioenteric anstomosis (OR=7, 95%CI: 2.591-18.912, P < 0.001).

CONCLUSION

ERCP in post bilioenteric anstomosis patients with gastrointestinal reconstruction need general anaesthe-sia, with good safety and efficiency. The successful rate of RYHJ was significantly lower than Whipple. Anastomotic method was the only predicting factor of ERCP success.

A novel endoscopic technique using fully covered self-expandable metallic stents for benign strictures after hepaticojejunostomy: the saddle-cross technique (with video)

BACKGROUND

In recent years, the number of patients with hepaticojejunostomy anastomotic strictures has increased. Balloon dilation and placement of multiple plastic stents have proven effective for hepaticojejunostomy anastomotic strictures. However, for refractory strictures, there is often a need for repeated endoscopic procedures within a short period. This study aimed to assess the efficacy and safety of the new saddle-cross technique, which uses two fully covered self-expandable metallic stents.

METHODS

This was a retrospective analysis of 20 patients with benign hepaticojejunostomy anastomotic strictures who underwent placement of two fully covered self-expandable metallic stents at the National Cancer Center, Japan, from November 2017 to June 2021.

RESULTS

The technical and clinical success rates were 100% (20/20). The median time of the procedure was 61 (range 25-122) min. The scheduled stent removal rate was 70% (14/20). Spontaneous dislodgement of the stent was observed on computed tomography in five patients (25.0%). The non-restenosis rate 12 months after the saddle-cross technique was 88.2% (15/17). Procedure-related early adverse events included mild ascending cholangitis in three patients (15.0%) and sepsis in one patient (5.0%). Procedure-related late adverse events included mild ascending cholangitis in three patients (15.0%) and bile duct hyperplasia in one patient (5.0%).

CONCLUSIONS

The saddle-cross technique performed using two fully covered self-expandable metallic stents resulted in promising long-term stricture resolution with a high technical success rate. Based on these findings, the saddle-cross method can be considered an option for the standard procedure for benign hepaticojejunostomy anastomotic strictures.

Outcomes of double-layer continuous suture hepaticojejunostomy in pancreatoduodenectomy and total pancreatectomy

BACKGROUND

This study aims to describe the technique and the results of double-layer continuous suture hepaticojejunostomy (HJ) following pancreatoduodenectomy (PD) and total pancreatectomy (TP).

METHODS

A prospectively maintained database was analyzed retrospectively to identify incidence and severity of biliary leaks (BL) (ISGLS definition), as well as of HJ stenosis (HJS), cholangitis, and need for redo-HJ (in patients with a follow-up ≥3 years) in a consecutive series of 800 procedures (PD = 603; TP = 197). Predictors of biliary complications were also identified.

RESULTS

BLs occurred in 5 patients (0.6%), including 2 (0.3%) combined pancreatic and biliary leaks. Rates of HJS, cholangitis, and need for redo-HJ were 6.1%, 5.4%, and 2.0%, respectively. Incidence of BL was 0.6% in open procedures (4/587) and 0.4% in robotic operations (1/213). Incidence of late biliary complications was also equivalent in open and robotic procedures. Occurrence of BL was predicted by ASA IV status and duodenal cancer, HJS by any associated vascular procedure and hepatic duct size < 8 mm, cholangitis by any associated vascular procedure and normal bilirubin/hepatic enzymes, and redo HJ by history of cholecystectomy and neuroendocrine tumor/cancer.

DISCUSSION

Double layer continuous suture HJ is associated with low BL rates, and an acceptable incidence of late complications.

Robotic Revision of Hepaticojejunostomy for Benign Biliary Stricture

Surgical revision of biliary enteric anastomoses (BEA) can be a challenging undertaking and a robotic platform may provide advantages that address many of the technical obstacles. We present our technical approach and outcomes for patients undergoing robotic revision of BEA for benign strictures. A retrospective review was performed for robot-assisted benign BEA revision at our institution. Operative details, perioperative metrics, and outcomes are reported. Four patients underwent anastomotic revision following previously failed non-operative management. There were no intraoperative complications, mean length of stay was 4-days, and all patients experienced resolution of presenting clinical signs and symptoms. No patients required reoperation and there was no mortality. Postoperative outcomes were consistent with findings reported for other interventional modalities. Based on our experience we conclude robotic intervention in this context is safe and improves the technical feasibility of this complex procedure.

Biliary stones or ulcers at the choledochojejunal anastomotic site involving the jejunal mucosa at stent removal may be recurrent factors in patients with benign choledochojejunal anastomotic stenosis undergoing endoscopic biliary stenting using fully-covered self-expandable metal stents

BACKGROUND

Temporary fully-covered self-expandable metal stent (FCSEMS) placement is performed for benign choledochojejunal anastomotic stenosis (bCJS). However, recurrence may develop after stricture resolution. We investigated endoscopic biliary stenting using FCSEMS for bCJS.

METHODS

Sixteen bCJS patients with FCSEMS placement were retrospectively analyzed. FCSEMS was removed endoscopically after 2 months. Technical success, stricture resolution, recurrence, and adverse events were evaluated.

RESULTS

The technical success rate for FCSEMS placement was 94% (15/16). Biliary stones were detected and extracted in 4 patients. FCSEMS removal was successfully performed on 14 patients, excluding 1 with stent migration. At FCSEMS removal, stricture resolution was noted in 14 patients; however, 4 had anastomotic ulcers. The median follow-up was 319 days. Three patients with a history of repeated plastic stent placement had no recurrence. Four out of 15 patients (27%) had recurrence, and three had no recurrence after additional interventions. Biliary stones before first FCSEMS placement (p=0.003) or anastomotic ulcers at FCSEMS removal (p=0.018) were associated with recurrence.

CONCLUSIONS

Although FCSEMS placement was useful for stricture resolution, recurrence was detected in patients with biliary stones before first FCSEMS placement or anastomotic ulcers at FCSEMS removal. Anastomotic ulcers are a risk factor for recurrence and only detected by endoscopy.

The Utility of Biliary Manometry in Assessing Early Catheter Removal After Percutaneous Balloon Dilatation of Hepaticojejunostomy Strictures

Background and objective

Percutaneous balloon dilatation followed by long-term internal-external biliary catheter (IEBC) placement is the standard radiological management for postoperative hepaticojejunostomy (HJ) strictures. The treatment is considered successful when cholangiography shows a free flow of contrast across the anastomosis and the patient passes a "clinical test". However, these tests may not be suitable predictors of long-term successful treatment outcomes. The purpose of this study was to assess the utility of biliary manometry in the evaluation of successful treatment outcomes after HJ stricture dilatation and IEBC placement and its efficacy as a tool for early catheter removal.

Patients and methods

A total of 14 patients underwent percutaneous balloon dilatation of HJ strictures with IEBC placement. A two-to-three-month interval was maintained between sessions of exchanging or upsizing IEBCs. Biliary manometry was performed after a mean duration of 6.3 months. Intra-biliary pressure of <15 mmHg was considered as the success threshold.

Results

Among the 14 patients, 11 patients passed initial manometry and had their IEBCs removed and were followed up for a mean duration of 47.8 months. Of these, one patient developed biliary obstruction after six months and underwent repeat HJ stricture dilatation and long-term IEBC placement. Three patients failed manometry and underwent re-dilatation of HJ strictures with IEBC placement. Using Kaplan-Meier survival analysis, the probability of patients remaining stricture-free after HJ stricture dilatation was found to be 100% at three months and 91% at six, 12, 18, 24, 36, and 47.8 months.

Conclusion

Biliary manometry prevents subjective variations in determining treatment endpoints and helps to assess early catheter removal after percutaneous balloon dilatation of HJ strictures.

Efficacy of double-balloon enteroscopy-assisted endoscopic balloon dilatation combined with stent deployment for hepaticojejunostomy anastomotic stricture

BACKGROUND

Hepaticojejunostomy anastomotic stricture (HJAS) is a significant complication of biliary reconstruction surgery. Endoscopic management of HJAS using double-balloon enteroscopy has expanded; however, retrospective reports in this setting are limited. This study aimed to evaluate the efficacy of endoscopic balloon dilatation combined with stent deployment for HJAS.

METHODS

This was a single-arm prospective clinical trial involving 40 patients with treatment-naïve HJAS enrolled between March 2016 and August 2019 at four endoscopy units in Japan. For HJAS, plastic stents combined with balloon dilatation were placed for 6 months after initial stenting. The primary outcome was HJ anastomosis patency 12 months after stent removal.

RESULTS

The technical success rate was 97.5% (39/40). The failed case required percutaneous transhepatic biliary drainage using the rendezvous technique. All cases achieved successful endoscopic treatment. During the treatment period, four of 40 patients (10%) ended the study protocol due to unrelated causes and were excluded from the primary analysis. Among the 36 patients, clinical success was achieved in 34 (94.4%) patients. The remaining two patients achieved HJAS resolution after an additional 3 months. All 36 patients achieved HJAS resolution. Adverse events were observed in two patients (5.0%) who developed moderate cholangitis. During a median follow-up of 21.3 months, HJAS recurrence was observed in 8.3% (3/36) with a median time to recurrence of 4.3 months and HJ anastomosis patency at 12 months was 94.4%.

CONCLUSIONS

Endoscopic balloon dilatation combined with plastic stent deployment for 6 months was a safe and effective strategy for HJAS. (Clinical Trial Registry no. UMIN000020613).

Long-term results of oversized balloon dilation for benign anastomotic biliary strictures: initial two-center experience

OBJECTIVE

To describe, assess the feasibility of, and quantify the long-term patency achieved with percutaneous transhepatic biliary dilation using the anastomotic biliary stricture (ABS) oversized balloon dilation technique as a single-step procedure for the treatment of benign anastomotic biliary strictures following hepatobiliary surgery.

MATERIALS AND METHODS

This was a retrospective, two-center study including 16 consecutive cases of symptomatic benign biliary-enteric strictures. After assessment of the diameter of the bile duct by computed tomography or magnetic resonance imaging, the strictures were dilated with oversized balloons (40-50% larger than the bile duct diameter) and an external biliary-enteric drain was placed. After drain removal, clinical symptoms and laboratory test results were evaluated every three months, whereas follow-up magnetic resonance imaging was performed at 30 days out and follow-up computed tomography was performed at 6 and 12 months out.

RESULTS

The mean follow-up time was 31.8 ± 8.15 months. Kaplan-Meier-estimated 1-, 2-, and 3-year patency rates were 88.2%, 82.4%, and 82.4%, respectively. There was one major complication-a small dehiscence of the anastomosis-which extended the catheter dwell time. Minor complications occurred in two cases-one small perihepatic hematoma and one segmental thrombosis of the left portal branch-neither of which required further intervention.

CONCLUSION

The single-step ABS oversized balloon dilation technique is a feasible treatment for benign anastomotic biliary-enteric strictures. The technique appears to be associated with high rates of long-term clinical success and patency.

Therapeutic Effect of Combining Anisodamine With Neostigmine on Local Scar Formation Following Roux-en-Y Choledochojejunostomy in a Novel Rat Model

Background: The present study aimed to explore the potential effect of combining anisodamine with neostigmine on local scar formation following Roux-en-Y choledochojejunostomy (RCJS) in a novel rat model.

Methods: The biliary obstruction model of Sprague Dawley (SD) rats was established in advance, and 54 rats were divided into nine groups randomly (sham operation group, anisodamine group, neostigmine group, combination group, and control group). Anisodamine (25 mg/kg) and neostigmine (50 μg/kg) were injected to the abdominal cavity separately or simultaneously for 1 week since the first day after surgery according to their allocated intervention, while the same amount of saline (0.5 ml) was injected intraperitoneally in the control group. Indexes including body weight, the diameter of the common bile duct, liver function, inflammatory indexes, and the condition of scar formation in different groups at certain time were evaluated in our study.

Results: Recovery of liver function (ALT, AST, TB, DB, and GGT) and systematic inflammation indexes (CRP, TNF-α, and IL-1β) in the combination group was prior to that in the control group (p < 0.05), while no statistical difference in the serum level of IL-10 was observed among groups. Rats in the combination group represented a wider anastomotic diameter and lower expression of α-SMA and TGF-β1 at anastomotic stoma compared to the control group (p < 0.05). Histopathological staining showed slighter proliferation of collagen and smooth muscle fibers in rats’ bile duct wall and less local scar formation at anastomotic stoma compared to the control group.

Conclusion: The combination of anisodamine and neostigmine can alleviate local and systemic inflammatory response, promote the recovery of liver function, and reduce scar formation in rats after the RCJS procedure.

Bio-Degradable Stents: Primary Experience in a Tertiary Hepatopancreaticobiliary Center in the United Kingdom

BACKGROUND

Management of benign biliary strictures (BBS) post bilioenteric anastomoses requires a multidisciplinary approach including surgical, radiological, and/or endoscopic input. Patients often need multiple hospital visits for treatment with the long-term possibility of restenosis. Conventionally BBS have been treated with serial percutaneous transhepatic biliary dilatations necessitating repeat procedures for drain exchange or removal. Surgery may become necessary in refractory strictures. In the last decade, there have been increasing reports of the use of biodegradable stents (BDS) in treating biliary strictures mainly to address the need for repeated procedures for drain exchange.

AIM

 This study aimed to report the early outcomes in patients with BBS treated with BDS.

METHODS

Retrospective analysis of prospectively collected data was performed in patients who had a bilioenteric anastomosis presenting with an anastomotic stricture and were intended to be treated with BDS. The primary endpoints reported were technical success (defined as a successful resolution of stricture on repeat cholangiogram) and clinical success (defined as the absence of repeated cholangitis). Clavien-Dindo (CD) grade of complication was reported.

RESULTS

Twelve patients presented with BBS and nine patients had BDS. Three patients were not considered suitable for BDS due to a non-traversable stricture and had surgery. The male-female ratio was 1:2. There was 100% technical and clinical success with one patient having stent migration not needing intervention. The procedure took an average of 45 min. In seven (77.7%) patients, it was safely performed under local anesthesia with sedation. Two patients preferred general anesthesia. There was no restenosis noted at a median follow-up of 11 months.

CONCLUSION

The use of BDS in the treatment of BBS is a safe and effective procedure. Longer-term follow-up with multi-institutional reporting on a national database is needed to assess its long-term benefits.

Cholangiojejunostomy Using a Novel Magnamosis Device: Initial Clinical Results

BACKGROUND

Cholangiojejunostomy (CJ) is a popular operation; however, no specific anastomotic device is available. A novel magnamosis device for CJ was developed in 2017; here, we evaluated the feasibility and safety of the device.

METHODS

Between January 2017 and December 2019, 23 patients who underwent CJ using a novel magnamosis device were enrolled. For the CJ: the parent magnet was placed in the proximal duct, and the purse-string suture was tightened over the rod of the parent magnet. The magnamosis device was introduced into the jejunum, and the mandrel penetrated the jejunum at the anastomotic site, before insertion into the rod of the parent magnet. After rotating the knob, the distance between two magnets was shortened enough to achieve coupling.

RESULTS

Sixteen patients (69.6%) underwent open CJ, while 7 (30.4%) underwent laparoscopic CJ; 21 patients (91.3%) underwent choledochojejunostomy, and 2 (8.7%) underwent right or left hepatic duct jejunostomy. The mean time for completion of CJ was 9.2±2.5 min; it was significantly shorter for open CJ than for the laparoscopic way (8±1.2 min vs. 11.8±2.5 min, P<0.05). Only one patient (4.3%) suffered bile leakage after operation and was cured by conservative treatment. The magnets were discharged with a postoperative duration of 66.7±47.2 days, with a 100% expulsion rate. After a median follow-up of 15 months, only one patient (4.3%) developed inflammatory anastomotic stricture.

CONCLUSION

The novel magnamosis device is a simple, safe, and effective modality for CJ.

Strict Surgical Repair for Bile Leakage Following the Roux-en-Y Hepaticojejunostomy

Background: The optimal bile leakage management strategy in the pediatric population following the initial Roux-en-Y hepaticojejunostomy is still a matter of discussion today. Here, we assessed the roles of bile leakage management and surgical implementation on outcomes for patients with bile leakage.

Materials and Methods: A revised protocol for bile leakage management with restricted surgical intervention was implemented at Chongqing Children’s Hospital on March 15, 2013 and Sanxia Hospital on April 20, 2013. We performed a retrospective, historical control analysis for the protocol implementation to compare the short- and long-term outcomes using the corresponding statistical methods.

Results: There was a total of 84 patients included in the analysis, including 46 patients in the pre-protocol group and 38 patients in the post-protocol group. No statistical differences for the demographic features were found between the two groups. There was a decrease in redo surgeries in the post-protocol cohort compared to those in the pre-protocol cohort (odds ratio [OR] = 4.48 [95% CI, 1.57–12.77]; p = 0.003). Furthermore, patients in the post-protocol group were less likely to be associated with intensive care unit (ICU) admission (OR = 3.72 [95% CI, 1.11–12.49]; p = 0.024) compared to patients in the pre-protocol group, respectively. There was no mortality between the two groups.

Conclusions: A restrictive surgical intervention strategy can effectively reduce the rate of redo surgery and exhibited promising outcomes for bile leakage in terms of postoperative recovery and hospitalization costs.

Stent-free duct-to-duct biliary reconstruction after hepatectomy for liver tumors involving biliary confluence at the hepatic hilum: a monocentric experience

Roux-en-Y hepaticojejunostomy (HJ) is the standard of care for biliary reconstruction. Its weaknesses are the loss of the sphincter functionality, which could lead to repeated cholangitis, and the reduced endoscopic accessibility to the biliary tree. In the context of liver transplantation it has been shown that duct-to-duct biliary anastomosis may be suitable as an alternative to HJ, significantly reducing the risk of cholangitis. Here we present our experience on stent-free duct-to-duct reconstruction, performed in six patients receiving hepatectomy with resection of the biliary confluence. Operative mortality was nil. Anastomotic leak occurred in four patients and resolved spontaneously in all cases. One patient developed anastomotic stricture 17 months after surgery and only one patient developed tumor recurrence at the anastomotic site; in both cases the endoscopic stenting succeeded in restoring the ducts patency. With a median follow-up of 24 months (range 19-28 months), no cholangitis or other biliary-related complications were observed. Our experience, although limited, shows satisfactory oncological and functional outcomes, confirming all previously published results.

Endoscopic treatment of hepaticojejunostomy anastomotic strictures using fully-covered metal stents

OBJECTIVES

With the emergence of the double-balloon endoscope (DBE), hepaticojejunostomy anastomotic strictures (HJASs) are increasingly managed endoscopically. However, balloon dilation and/or plastic stent placement may be associated with low stricture resolution rates and long treatment duration. We utilized a fully-covered metal stent (FCSEMS), which was designed for temporary placement for benign biliary strictures, and assessed its feasibility for patients with HJASs.

METHODS

We retrospectively studied 20 patients who underwent DBE-assisted FCSEMS placement for HJASs between June 2017 and March 2019. The FCSEMS was removed endoscopically at three months of stent placement. The outcomes investigated were the stricture resolution at the time of FCSEMS removal, the stricture recurrence, and adverse events.

RESULTS

Among 20 patients treated, stricture resolution was achieved in 17 patients (85.0%) at three months of stent placement. The FCSEMS was removed endoscopically without any technical difficulties in all cases except for two with asymptomatic stent migration due to stricture resolution. During a median follow-up period of 11.9 months (interquartile range, 7.5-18.0 months), an HJAS recurred in one patient (5.9%). For two patients without stricture resolution and one patient with recurrent stricture, another FCSEMS placement for 77, 84, and 186 days resolved the stricture. The overall stricture resolution rate was 95.0%. In one patient with FCSEMS-induced de novo stricture, long-term plastic stent placement was required. Procedure-related adverse events included mild cholangitis in two patients and mild pancreatitis in one patient.

CONCLUSIONS

Endoscopic treatment using a FCSEMS via DB-ERCP was a feasible and effective treatment option for a HJAS.

Long-term placement of lumen-apposing metal stent after endoscopic ultrasound-guided duodeno- and jejunojejunal anastomosis for direct access to excluded jejunal limb

BACKGROUND

 Management of biliary disorders in patients with altered anatomy may be challenging. Endoscopic ultrasound (EUS)-guided gastrointestinal anastomosis using a lumen-apposing metal stent (LAMS) was introduced to allow endoscopic retrograde cholangiography (ERC) in such cases. However, the appropriate stent indwelling time remains uncertain. We report long-term LAMS deployment after duodenojejunal or jejunojejunal anastomosis (EUS-DJA) to allow endoscopic reinterventions in cases of recurrences.

METHODS

 11 consecutive patients underwent EUS-DJA with long-standing LAMS between January 2017 and December 2018. Over a 12-month period, ERC treatment was carried out with multiple endoscopic sessions across the DJA.

RESULTS

 Technical success was 91 % (10/11) for EUS-DJA and 100 % for ERC. Four patients presented stricture recurrence at a mean of 489 days (standard deviation [SD] 31.7) after the end of ERC treatment. A novel ERC across the LAMS anastomosis was feasible in all cases. At a mean of 781 days (SD 253.1), all LAMS remained in place with no evidence of complications.

CONCLUSION

 Long-term LAMS placement after EUS-DJA may be feasible and safe for direct access to the excluded limb.

Mechanism of scar formation following Roux-en-Y choledochojejunostomy in a novel rat model of obstructive jaundice

Background

The present study aimed to analyze the scar formation mechanism following Roux-en-Y choledochojejunostomy (CJS) in a novel rat model of obstructive jaundice.

Methods

The biliary obstruction model of Sprague-Dawley (SD) rats was established in advance, and 24 rats were randomly divided into 4 groups (control group, 1-day ligation group, 3-day ligation group, and 5-day ligation group). Changes in postoperative weight, common bile duct diameter, and laboratory indexes were analyzed to determine the best operation time. Roux-en-Y CJS in rats was studied based on the model, and the rats were randomly divided into 4 groups [control group, 3-day choledochojejunostomy (CJS) group, 7-day CJS group, and 30-day CJS group]. The same indexes were analyzed, and the characteristics of scar formation were evaluated by histopathology and polymerase chain reaction examination.

Results

The third day after common bile duct ligation is the best time for a Roux-en-Y CJS. The common bile duct diameter expands to 4.2 mm on average, and these physiological characteristics are consistent with current standard clinical findings. After completing CJS, the rats’ weight returned to normal levels, and alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin (TB), direct bilirubin (DB), and C-reactive protein (CRP) indexes gradually decreased (P<0.05). Anastomotic stoma diameter tended to narrow with time and was significantly narrower on day 30 than preoperation. After CJS, the expression of α-smooth muscle actin (α-SMA) peaked in the early stage and was still higher than that of the control group in the bile duct wall 1 month postoperatively (P<0.05). Transforming growth factor-β1 (TGF-β1) expression gradually increased and was higher than that of the control group at each stage postoperatively (P<0.05).

Conclusions

The rat Roux-en-Y CJS model is more in line with our surgical model, and the clinical condition has potential applicability for the study of CJS scar formation. Scar formation following CJS in rats is characterized by the activation of fibroblasts caused by early inflammatory stimulation, which leads to the proliferation of collagen and smooth muscle fibers, resulting in scars.

Incidence of anastomotic stricture after hepaticojejunostomy with continuous sutures in patients who underwent laparoscopic pancreaticoduodenectomy

PURPOSE

Laparoscopic hepatojejunostomy (HJ) with continuous sutures is commonly performed in laparoscopic pancreaticoduodenectomy (LPD). This study aimed to investigate the long-term surgical outcomes of HJ in LPD.

METHODS

We retrospectively evaluated 103 consecutive patients who underwent pancreaticoduodenectomy via laparoscopic HJ with continuous suturing using multifilament (n = 48) or monofilament-absorbable sutures (n = 47).

RESULTS

During follow-up, anastomotic stricture of HJ was identified in 8 (7.8%) patients via balloon enteroscopy-assisted cholangiography. The median time from surgery to confirmation of stricture formation was 7.6 months (range 3.6-19.4). The incidence of HJ stricture was significantly higher in patients with a thin bile duct (diameter < 6.0 mm) than in those with a thick bile duct (diameter ≥ 6.0 mm) [7/27 (25.9%) vs. 1/76 (1.3%), respectively, p < 0.01]. Similarly, it was significantly higher in the monofilament group than in the multifilament group [7/54 (13.0%) vs. 1/49 (2.0%), respectively, p = 0.04]. In the monofilament suture group, 37.5% of patients with thin bile ducts developed stricture after HJ. A multivariate analysis revealed that a thin bile duct was an independent risk factor for HJ stricture (hazard ratio: 25.3, p < 0.01).

CONCLUSIONS

Stricture after laparoscopic HJ using continuous sutures frequently occurs in patients with thin bile ducts, particularly when monofilament-absorbable suture is used.

EUS-guided transanastomotic drainage for severe biliopancreatic anastomotic stricture using a forward-viewing echoendoscope in patients with surgically altered anatomy

Background and Objectives:

Balloon enteroscopy-assisted ERCP (BE-ERCP) has become the first-line therapy for biliopancreatic anastomotic strictures. However, it is not always successful, and salvage methods have not been established. This study aimed to evaluate the outcomes of EUS-guided transanastomotic drainage using a forward-viewing (FV) echoendoscope.

Patients and Methods:

Of eight cases wherein BE-ERCP treatment failed due to severe or complete benign anastomotic stricture, seven cases underwent EUS-guided choledochojejunostomy, and EUS-guided pancreaticojejunostomy was applied in one case after intubating an FV echoendoscope into the anastomotic site.

Results:

The success rate of reaching the target site was 100% (8/8) for patients after modified Child resection. The median time to reach the anastomosis was 5 min (range: 3–17 min), and the technical success rate for drainage was 75% (6/8). The median total procedure time was 33.5 min (range: 22–45 min) for six successful cases. Cautery dilatation catheters were necessary to dilate the puncture site in all cases, and no early complications were observed. During the follow-up period (median: 13.3 months [range: 6.5–60.3]), recurrence of the stricture occurred in one case, and a stent-free status was achieved after 6–12 months of stent placement in five cases.

Conclusions:

EUS-guided transanastomotic drainage using an FV echoendoscope is a feasible and safe rescue technique for the management of benign severe biliopancreatic anastomotic strictures.

Bilioenteric bypass stricture type II with hepatolithiasis: A case report

Introduction

Secondary hepatolithiasis can occur as a result of bilioenteric stenosis or biliary anastomosis stenosis. The incidence of secondary hepatolithiasis appears to increase with increasing rates of hepatobiliary surgery. Here we report the first reported case of secondary hepatolithiasis.

Case presentation

A 57-year-old female patient complaining of jaundice all over the body since two years ago. The jaundice was intermittent and progressive. There was a history of previous bilioenteric bypass hepaticojejunostomy Roux-en-Y due to common bile duct cyst. On investigation, we found obstructive jaundice due to stricture of bilioenteric anastomosis type II after bilioenteric bypass hepaticojejunostomy Roux-en-Y with hepatolithiasis type II LR, according to the Takada classification. We did laparotomy found bilateral hepatic duct dilatation, we make incision and remove multiple stones. And then, we performed choledochoscope and confirm total occlusion of tract to distal common hepatic duct. We performed reconstruction Roux-en-Y hepaticojejunostomy with stenting. During the follow-up period, our patients were disease-free.

Conclusion

Stricture of bilioenteric anastomosis were successfully treated by surgical reconstruction Roux-en-Y hepaticojejunostomy and stenting. This management has a good outcome and could be an effective alternative to surgery.

•

Secondary hepatolithiasis can occur as a result of bilioenteric stenosis or biliary anastomosis stenosis.

•

Here we report the first reported case of bilioenteric bypass stricture type II with Hepatolithiasis.

•

Combination surgical reconstruction Roux-en-Y hepaticojejunostomy and stenting has a good outcome.

Treatment of complex complications after choledochal cyst resection by multiple minimal invasive therapies: A case report

•

Complications after choledochal cyst resection are common, mainly anastomotic stricture, bowel obstruction, biliary fistula and pancreatic cyst remnant.

•

Reoperation is the optimal method for patients with pancreatic cyst remnant and hepaticojeju-nal anastomotic stricture.

•

ERCP, balloon dilation should be considered as a supporting tools to reduce the risk and mor-bidity of surgery.

Introduction

Choledochal cyst is a rare benign congenital dilation of the bile duct, which causes recurring disturbing symptoms without totally resection. Nonetheless, postoperative complications are still a common issue. A step up management for patients with complex complications is required to address the problem.

Case presentation

We report a 10-year-old child who suffered complex postoperative complications after choledochal cyst resection at the age of 5, including cholangitis, bilioenteric stenosis and cystolithiasis in remnant intrapancreatic duct cyst. She occasionally endured episodes of epigastric pain, fever and jaundice afterwards. As the symptoms and recurrent rate were worsen over time, the patient was admitted multiple times and various approaches (balloon dilation, percutaneous transhepatic biliary drainage, endoscopic retrograde cholangiopancreatography and laparoscopic surgery) were applied. Afterwards, patient recovered and discharged without any complications.

Conclusion

Our case presented sophisticated complications relating to choledochal cyst that were successfully treated by a combination of modern minimal invasive techniques. Despite operated by experienced surgeons, the post-op complications are still a concerned problem due to difficult laparoscopic techniques, injuries of hepatic artery, infection and risk of malignancy. We suggested that minimal-invasive procedures should be considered first with the aim of relieving symptoms, biliary drainage and preparing for the reoperation.

Hepaticojejunostomy for Benign Disease: Long-Term Stricture Rate and Management

The objective of the study was to determine the long-term stricture rate of hepaticojejunostiomy (HJ) performed for benign disease, to compare stricture rates for transplant patients and non-transplant patients, and to compare the success rates of procedural and surgical treatment options. Hospital charts of 135 consecutive patients undergoing HJ between 1998 and 2016 were analyzed retrospectively. The primary outcome was stricture formation. Secondary outcomes were time to stricture diagnosis and success rates of various interventions. The anastomotic stricture rate was 13.3 per cent (18). The mean follow-up period was 4.3 years. The mean time to stricture diagnosis was 2.3 years. Stricture rates were similar between the transplant (19.2%) and nontransplant, non-Whipple group (13%). Strictures were treated with radiological intervention with a 44.4 per cent success rate; each required multiple interventions. Mortality from liver disease after failure of nonoperative management of HJ strictures reached 30 per cent (3). Five of ten patients who failed radiological intervention underwent HJ revision; the success rate was 80 per cent. Anastomotic strictures of HJ performed for benign disease occur in 13 per cent of patients and typically develop within 2.5 years postoperatively. Yet, given the dangerous sequelae of chronic biliary obstruction and potential delay in presentation, a follow-up is recommended for up to 10 years. When strictures occur, HJ revision should be considered early, after two failed radiological interventions.

Cholangitis following biliary-enteric anastomosis: A systematic review and meta-analysis

BACKGROUND

Cholangitis is a serious biliary complication following biliary-enteric anastomosis (BEA). However, the rate of cholangitis in the postoperative period and its associated risk factors are inconclusive. The objective of this systematic review and meta-analysis was to assess the onset and risk factors of cholangitis after biliary-enteric reconstruction in literature.

METHODS

MEDLINE, EMBASE, and Cochrane databases were searched systematically to identify studies reporting about cholangitis following biliary-enteric anastomosis. Meta-analyses were performed for risk factors using random effects model with odds ratio (OR) and 95% confidence interval (95 %CI) as effect measures. Study quality was assessed by the MINORS (methodological index for non-randomized studies) criteria.

RESULTS

28 studies involving 6904 patients were included in the study. The pooled rate for postoperative cholangitis (POC) was 10% (95 %CI: 8 %-13%) with studies reporting about an early- and late-onset of cholangitis. Male sex (OR 2.08; 95 %CI: 1.33-3.24; P = 0.001), postoperative hepatolithiasis (OR 137.19; 95 %CI: 29.00-648.97; P < 0.001) and postoperative anastomotic stricture (OR 178.29; 95 %CI: 68.64-463.11; P < 0.001) were associated with a higher risk of a late-onset of POC with a pooled rate of 8% (95 %CI: 6 %-11%) after a median time interval of 12 months. The quality of the included studies was low to moderate.

CONCLUSION

Cholangitis is a frequent complication after BEA. Consensus definition and prospective trials are required to assess optimal therapeutic strategies. We proposed a standardized definition and grading of POC to enable comparisons between future studies.

Endoscopic retrograde cholangiography via a permanent access loop

BACKGROUND/AIMS

The aim of this study was to investigate the indications, technical and clinical success, and complications of the endoscopic retrograde cholangiography (ERC) via a permanent access loop (PAL).

MATERIALS AND METHODS

Twenty patients who underwent ERC through PAL between 2009 and 2017 were included in this study. The technical success was described as achieving access to the bile ducts through PAL and the clinical success was described as the clinical and laboratory improvement of the patients after the procedure.

RESULTS

The study was performed with 20 patients. The median follow-up duration was 24 months (3-96) and the median number of ERC sessions was 3.9 (1-10). The most common ERC indications through PAL were stones (40%) and cholangitis (30%). In 16 patients (75%), anastomotic or branched strictures were observed. The improvement of strictures via intermittent stenting and dilatation was observed in 6 patients, but no improvement was observed in 5 patients. The treatment of those 5 patients continues. In this study, the technical success was 100% and clinical success was 85%. While no mortality due to PAL-mediated ERC was observed, free wall perforation was seen in one patient who was referred to surgery.

CONCLUSION

PAL-mediated ERC procedure is a technique with high technical and clinical success and low complication rate in patients who require frequent percutaneous procedures and those with difficult access to the biliary tract.

Leakage and Stenosis of the Hepaticojejunostomy Following Surgery for Perihilar Cholangiocarcinoma

This study aims to provide a deep insight into the incidence and clinical significance of postoperative anastomotic leakage (AL) and anastomotic stenosis (AS) of the hepaticojejunostomy (HJ) after curative-intent liver resection for perihilar cholangiocarcinoma (pCCA). Between 2011 and mid-2019, 114 patients with pCCA underwent surgery in curative intent at our institution and were analyzed regarding the postoperative incidence of AL and AS. Further, associations between AL and AS and clinical characteristics were assessed using multiple univariate logistic regression analyses. AL was diagnosed in 11.4% (13/114) of the patients resulting in postoperative mortality in the minority of patients (23.0%, 3/13). AS occurred in 11.0% (11/100) of the individuals eligible for follow-up with local tumor recurrence being the underlying pathology in 72.7% (8/11) of the cases. None of the investigated clinical factors including surgical difficulty of the HJ showed a meaningful association with AL or AS. AL and AS are frequent complications and can be treated by conservative, interventional or surgical therapy with a high success rate. Also, technical difficulty of the HJ appears not to be not associated with the occurrence of AL or AS. Moreover, AS is associated with tumor recurrence in the majority of cases.

Absorbable stents for treatment of benign biliary strictures: long-term follow-up in the prospective Spanish registry

OBJECTIVES

Benign strictures of the bile duct may be difficult to treat endoscopically due to altered bowel anatomy. Furthermore, recurrence of stenosis and symptoms remains high. The aim of the Spanish Prospective Registry BiELLA study was to investigate the safety and efficacy of absorbable stents in the treatment of benign biliary strictures and their outcomes on the medium and long-term follow-up.

METHODS

A prospective, multicenter, observational, non-randomized study (the BiELLA study) was conducted from January 2014 to September 2018. One hundred fifty-nine patients with benign biliary strictures, mostly postsurgical, were enrolled for implantation of absorbable biliary stents in the 11 participating Spanish tertiary hospitals. The average patient follow-up was 45.4 ± 15.9 months (range, 12-60 months). The follow-up data included symptoms, biochemical parameters, and ultrasound images at 1, 6, and 12 months and then yearly for up to 60 months.

RESULTS

The immediate technical and clinical success rates were 100%. In all patients, stent placement resulted in improvement of clinical symptoms and biochemical parameters. The primary mean patency for stent was 86.7, 79.6, and 78.9% at 12, 36, and 60 months, respectively (95% CI). Biliary restenosis and occlusion occurred in 40 (26.6%) patients. Of the 40 patients, 18 (12%) patients were treated with a second stent and 22 (14.6%) patients had operative repair of the recurrent strictures. There were no major complications associated with stent implantation.

CONCLUSIONS

Implantation of an absorbable polydioxanone biliary stent is safe and effective for treatment of benign biliary strictures refractory to balloon dilatation or other biliary intervention.

KEY POINTS

• Percutaneous implantation of biodegradable prostheses for the treatment of benign postsurgical biliary strictures is a safe and effective procedure. • More than 75% of the patients presented patency of the stented biliary tree at 5 years follow-up. • Absorbable stents improved clinical symptoms and signs (jaundice, itching, fever), and laboratory parameters in a few days after stent placement.