Endoscopic retrograde cholangiopancreatography-related perforations: Diagnosis and management

A Convoy of Magnetic Millirobots Transports Endoscopic Instruments for Minimally-Invasive Surgery

Small-scale robots offer significant potential in minimally invasive medical procedures. Due to the nature of soft biological tissues, however, robots are exposed to complex environments with various challenges in locomotion, which is essential to overcome for useful medical tasks. A single mini-robot often provides insufficient force on slippery biological surfaces to carry medical instruments, such as a fluid catheter or an electrical wire. Here, for the first time, a team of millirobots (TrainBot) is reported to generate around two times higher actuating force than a TrainBot unit by forming a convoy to collaboratively carry long and heavy cargos. The feet of each unit are optimized to increase the propulsive force around three times so that it can effectively crawl on slippery biological surfaces. A human-scale permanent magnetic set-up is developed to wirelessly actuate and control the TrainBot to transport heavy and lengthy loads through narrow biological lumens, such as the intestine and the bile duct. The first electrocauterization performed by the TrainBot is demonstrated to relieve a biliary obstruction and open a tunnel for fluid drainage and drug delivery. The developed technology sheds light on the collaborative strategy of small-scale robots for future minimally invasive surgical procedures.

Advanced technical tips and recent insights in ERCP using balloon-assisted endoscopy

Pancreatobiliary endoscopic interventions using balloon-assisted endoscopes have been widely acknowledged as the first-line therapy for pancreatobiliary diseases in postoperative patients with reconstructed gastrointestinal anatomy (excluding the Billroth I procedure). However, there are many technical difficulties, and the procedural completion rates vary in a wide range among institutions, indicating the procedural technique is yet to be standardized. This article aims to provide technical tips of procedures and insights into the advanced aspects, including the management of extremely difficult cases and troubleshooting of endoscopic retrograde cholangiopancreatography using balloon endoscopy, along with a review of recent advancements in this field.

Shahwan S, Al-qaoud D, Fataftah J. ERCP-induced perforation: review and revisit after half a century

Background

Endoscopic retrograde cholangiopancreatography (ERCP) is an invasive procedure. We aimed to investigate ERCP-induced perforations at our institution and conduct a comprehensive review of literature on ERCP-induced perforations (EIP) since the introduction of this procedure as a therapeutic intervention.

Methods

This was a case-control study, in which charts of all patients diagnosed with ERCP-induced duodenal perforation were reviewed and compared to a control group without perforation. Patient's sociodemographic and clinical data, including ERCP procedure-related data, were gathered.

Results

A total of 996 ERCP procedures were performed; only 13 patients proved to have EIP. Obstructive jaundice was the most common indication for ERCP. The main predisposing factor was difficult cannulation (P = 0.003). In total, five patients required surgical treatment; the majority of them had type I perforation, whereas type IV was the most common in patients who were treated conservatively. The overall mortality rate was 15%, the surgical group had a slightly higher mortality rate.

Conclusions

Fifty years after the introduction of ERCP for therapy, it remains an invasive procedure that carries significant morbidity and mortality, even in skilled hands or at high- volume units. Conservative management of perforation yields favorable outcomes in selected patients.

Utility of a Passive Bending Colonoscope for Endoscopic Retrograde Cholangiopancreatography in Patients with Surgically Altered Anatomy

BACKGROUND AND AIM

The utility of a passive bending colonoscope (PBCS) in ERCP for patients with surgically altered anatomy has not been established. This study compared the outcome of PBCS-ERCP and balloon-assisted enteroscope (BAE)-ERCP.

METHODS

This multicenter observational study included 343 patients with surgically altered anatomy who underwent ERCP. Among these, 110 underwent PBCS-ERCP and 233 underwent BAE-ERCP. Propensity score matching was applied, and a final cohort of 210 (105 in each group) with well-balanced backgrounds was analyzed. The primary outcome was the success rate of reaching anastomosis or ampulla of Vater. Secondary endpoints included the cannulation success rate, completion rate, procedure time (to reach, cannulate, complete), and adverse events.

RESULTS

The success rate for reaching the target was 91.4% (96/105) with PBCS and 90.5% (95/105) with BAE (odds ratio [95% CI] 1.12, [0.44-2.89], P = 0.809). The mean time required to reach the target was significantly shorter in PBCS: 10.04 min (SD, 9.62) with PBCS versus 18.77 min (SD, 13.21) with BAE (P < 0.001). There were no differences in the success of cannulation or procedure completion, although the required times for cannulation and procedure completion were significantly shorter in PBCS. The incidence of adverse events was significantly higher in BAE (19.0%) than in PBCS (4.8%; P < 0.001).

CONCLUSIONS

In patients with surgically altered anatomy, PBCS-ERCP showed promising results with shorter time to reach, cannulate, and a lower incidence of adverse events compared with BAE-ERCP. The success rate of reaching was favorable through PBCS compared with BAE.

CLINICAL TRIAL REGISTRATION

UMIN000045546.

Endoscopic retrograde cholangiopancreatography-related early perforations: A study of effects of procedure duration, complexity, and endoscopist experience

BACKGROUND

Perforations (Perf) during endoscopic retrograde cholangiopancreatography (ERCP) are rare (< 1%) but potentially fatal events (up to 20% mortality). Given its rarity, most data is through case series studies from centers or analysis of large databases. Although a meta-analysis has shown fewer adverse events as a composite (bleeding, pancreatitis, Perf) during ERCP performed at high-volume centers, there is very little real-world data on endoscopist and center procedural volumes, ERCP duration and complexity on the occurrence of Perf.

AIM

To study the profile of Perf related to ERCP by center and endoscopist procedure volume, ERCP time, and complexity from a national endoscopic repository.

METHODS

Patients from clinical outcomes research initiative-national endoscopic database (2000-2012) who underwent ERCP were stratified based on the endoscopist and center volume (quartiles), and total procedure duration and complexity grade of the ERCP based on procedure details. The effects of these variables on the Perf that occurred were studied. Continuous variables were compared between Perf and no perforations (NoPerf) using the Mann-Whitney U test as the data demonstrated significant skewness and kurtosis.

RESULTS

A total of 14153 ERCPs were performed by 258 endoscopists, with 20 reported Perf (0.14%) among 16 endoscopists. Mean patient age in years 61.6 ± 14.8 vs 58.1 ± 18.8 (Perf vs. NoPerf, P = NS). The cannulation rate was 100% and 91.5% for Perf and NoPerf groups, respectively. 13/20 (65%) of endoscopists were high-volume performers in the 4^th quartile, and 11/20 (55%) of Perf occurred in centers with the highest volumes (4^th quartile). Total procedure duration in minutes was 60.1 ± 29.9 vs 40.33 ± 23.5 (Perf vs NoPerf, P < 0.001). Fluoroscopy duration in minutes was 3.3 ± 2.3 vs 3.3 ± 2.6 (Perf vs NoPerf P = NS). 50% of the procedures were complex and greater than grade 1 difficulty. 3/20 (15%) patients had prior biliary surgery. 13/20 (65%) had sphincterotomies performed with stent insertion. Peritonitis occurred in only 1/20 (0.5%).

CONCLUSION

Overall adverse events as a composite during ERCP are known to occur at a lower rate with higher volume endoscopists and centers. However, Perf studied from the national database show prolonged and more complex procedures performed by high-volume endoscopists at high-volume centers contribute to Perf.

Endoscopic retrograde cholangiopancreatography-related complications: risk stratification, prevention, and management

Endoscopic retrograde cholangiopancreatography (ERCP) plays a crucial role in the management of pancreaticobiliary disorders. Although the ERCP technique has been refined over the past five decades, it remains one of the endoscopic procedures with the highest rate of complications. Risk factors for ERCP-related complications are broadly classified into patient-, procedure-, and operator-related risk factors. Although non-modifiable, patient-related risk factors allow for the closer monitoring and instatement of preventive measures. Post-ERCP pancreatitis is the most common complication of ERCP. Risk reduction strategies include intravenous hydration, rectal nonsteroidal anti-inflammatory drugs, and pancreatic stent placement in selected patients. Perforation is associated with significant morbidity and mortality, and prompt recognition and treatment of ERCP-related perforations are key to ensuring good clinical outcomes. Endoscopy plays an expanding role in the treatment of perforations. Specific management strategies depend on the location of the perforation and the patient's clinical status. The risk of post-ERCP bleeding can be attenuated by preprocedural optimization and adoption of intra-procedural techniques. Endoscopic measures are the mainstay of management for post-ERCP bleeding. Escalation to angioembolization or surgery may be required for refractory bleeding. Post-ERCP cholangitis can be reduced with antibiotic prophylaxis in high risk patients. Bile culture-directed therapy plays an important role in antimicrobial treatment.

Laparoscopic Transcystic Common Bile Duct Exploration: 8-Year Experience at a Single Institution

BACKGROUND

Laparoscopic transcystic common bile duct exploration (LTCBDE) is used to treat cholecystolithiasis and choledocholithiasis. This study aimed to investigate the safety, effectiveness and generalisability of LTCBDE in patients with cholecystolithiasis and choledocholithiasis based on our LTCBDE experience within 8 years.

METHODS

Four hundred patients with cholecystolithiasis and choledocholithiasis (including 62 of cholecystolithiasis and choledocholithiasis with common bile duct no-dilatation) treated with LTCBDE at a single centre from January 2014 to February 2022 were retrospectively evaluated. They were divided into the first 200 and last 200 LTCBDE cases. The disease characteristics, cystic duct incision methods, surgical outcomes and follow-up data were analysed retrospectively. Each patient was followed up for > 3 months.

RESULTS

Four hundred patients underwent LTCBDE, including 188 males and 212 females aged from 15 to 91 years (average age: 56 years). LTCBDE was successful in 377 (94.3%) patients, while treatment was converted to laparoscopic choledocholithotomy with T-tube drainage in 23 (5.8%), owing to intraoperative choledochoscope insertion failure. The CBD diameter (10.89 ± 1.76 vs 9.97 ± 2.39, P < 0.05), cystic duct diameter (4.62 ± 1.03 vs 5.03 ± 1.29, P < 0.05), and operation time (164.60 ± 24.30 vs 135.34 ± 30.00, P < 0.05). Residual stones were found in six (1.5%) patients and removed during the second operation; post-operative bile leakage was found in one (0.3%) patient, who was discharged safely after the second operation.

CONCLUSIONS

Phase I LTCBDE is safe and effective in treating cholecystolithiasis and choledocholithiasis. With continuous technological advances, LTCBDE has been effectively promoted and applied.

Safety and Feasibility of Primary Closure Following Laparoscopic Common Bile Duct Exploration for Treatment of Choledocholithiasis

BACKGROUND

T-tube drainage following laparoscopic common bile duct (CBD) exploration may lead to T-tube displacement and water-electrolyte disorders, affecting patients' quality of life. In particular, biliary peritonitis may develop in a small number of patients after T-tube removal, requiring reoperation. This prospective cohort study was performed to investigate the safety and feasibility of primary closure following laparoscopic CBD exploration for the treatment of choledocholithiasis.

METHODS

Patients who were treated for choledocholithiasis by laparoscopic CBD exploration with primary closure from January 2019 to March 2022 comprised the PC group (n = 145). Patients who were treated for choledocholithiasis by laparoscopic CBD exploration with T-tube drainage during this period comprised the TD group (n = 153). Perioperative and follow-up outcomes were collected and statistically analyzed.

RESULTS

The TD and PC groups showed significant differences in the operation time (124.6 ± 40.8 vs. 106 ± 36.4 min, P = 0.000) and postoperative hospital stay (7.1 ± 2.6 vs. 5.9 ± 2.0 days, P = 0.000). No significant difference was observed in terms of blood loss, the ratio of conversion to laparotomy, and postoperative parameters. Preoperative albumin and total bilirubin levels were the risk factors of bile leakage after surgery. No patients developed CBD stricture or carcinogenesis, The rates of residual and recurrent stones in the TD and PC groups were 1.97% vs. 1.40% and 1.31% vs. 1.40%, respectively, with no significant difference (P = 1.000 for both).

CONCLUSIONS

Primary closure following laparoscopic CBD exploration is safe and feasible for selected patients with choledocholithiasis.

Clinical analysis of 45 cases of perforation were identified during endoscopic retrograde cholangiopancreatography procedure

Background

Endoscopic retrograde cholangiopancreatography (ERCP) has become an important method to diagnose and treat biliary-pancreatic diseases. Perforations are infrequent but serious complications can occur during ERCPs. However, it is unclear which patients are suitable for surgery and when these patients should receive surgery.

Aim

To analyze the outcome of 45 patients with endoscopic retrograde cholangiopancreatography (ERCP) related perforation.

Materials and methods

We retrospectively reviewed all 45 patients with ERCP-related perforation between January 2003 and December 2017, and observed the location and causes of perforation, treatment strategies, and mortality.

Results

Twenty thousand four hundred and seventy-nine patients received ERCP procedures from January 2003 to December 2017 in our digestive endoscopy center. Forty-five patients suffered from ERCP-related perforations. The incidence rate of ERCP-related perforations was 0.22%. Twenty-six patients suffered from periampullary perforations, 15 patients suffered from duodenal wall perforations, 1 patient suffered from a fundus perforation, 1 patient suffered from a residual gallbladder duct perforation, 1 patient suffered from a papillary diverticulum perforation, and 1 patient suffered from an intrahepatic bile duct perforation. Six patients with duodenal perforations underwent surgery, and the other patients received conservative treatment. One patient with a duodenal perforation and ERCP-related pancreatitis died of heart failure, and all the other patients recovered. The mortality rate was 2.2%.

Conclusion

Endoscopic closure is seen as the first method for treating Stapfer type I perforations in the early phase, and surgery is seen as a remedial method when local treatment was failed. The Stapfer type II to type IV perforations can recover by conservative treatment.

Endoscopic Retrograde Cholangiopancreatography (ERCP) in Patients With Liver Cirrhosis: Analysis of Trends and Outcomes From the National Inpatient Sample Database

GOALS

We aimed to assess outcomes of patients with liver cirrhosis who underwent therapeutic or diagnostic endoscopic retrograde cholangiopancreatography (ERCP) to determine whether these patients had different outcomes relative to patients without cirrhosis.

BACKGROUND

ERCP is an important procedure for treatment of biliary and pancreatic disease. However, ERCP is relatively technically difficult to perform when compared with procedures such as esophagogastroduodenoscopy or colonoscopy. Little is known about how ERCP use affects patients with liver cirrhosis.

STUDY

Using patient records from the National Inpatient Sample (NIS) database, we identified adult patients who underwent ERCP between 2009 and 2014 using International Classification of Disease, Ninth Revision coding and stratified data into 2 groups: patients with liver cirrhosis and those without liver cirrhosis. We compared baseline characteristics and multiple outcomes between groups and compared outcomes of diagnostic versus therapeutic ERCP in patients with cirrhosis. A multivariate regression model was used to estimate the association of cirrhosis with ERCP outcomes.

RESULTS

A total of 1,038,258 hospitalizations of patients who underwent ERCP between 2009 and 2014 were identified, of which 31,294 had cirrhosis and 994,681 did not have cirrhosis. Of the patients with cirrhosis, 21,835 (69.8%) received therapeutic ERCP and 9459 (30.2%) received diagnostic ERCP. Patients with cirrhosis had more ERCP-associated hemorrhages (2.5% vs. 1.2%; P <0.0001) compared with noncirrhosis patients but had lower incidence of perforations (0.1% vs. 0.2%; P <0.0001) and post-ERCP pancreatitis (8.6% vs. 7%; P <0.0001). Cholecystitis was the same between groups (2.3% vs. 2.3%; P <0.0001). In patients with cirrhosis, those who received therapeutic ERCP had higher post-ERCP pancreatitis (7.9% vs. 5.1%; P <0.0001) and ERCP-associated hemorrhage (2.7% vs. 2.1%; P <0.0001) but lower incidences of perforation and cholecystitis (0.1% vs. 0.3%; P <0.0001) and cholecystitis (1.9 vs. 3.1%; P <0.0001) compared with those who received diagnostic ERCP.

CONCLUSIONS

Use of therapeutic ERCP in patients with liver cirrhosis may lead to higher risk of complications such as pancreatitis and postprocedure hemorrhage, whereas diagnostic ERCP may increase the risk of pancreatitis and cholecystitis in patients with cirrhosis. Comorbidities in cirrhosis patients may increase the risk of post-ERCP complications and mortality; therefore, use of ERCP in cirrhosis patients should be carefully considered, and further studies on this patient population are needed.

Malnutrition Is Associated With Worse Outcomes of Inpatient Endoscopic Retrograde Cholangiopancreatography

Objectives

Endoscopic retrograde cholangiopancreatography (ERCP) is frequently used to manage pancreaticobiliary disorders in an inpatient setting. Malnutrition is prevalent among hospitalized patients, and it is generally associated with poor clinical outcomes. However, there is a lack of studies on how malnutrition affects the outcomes of inpatient ERCP. Thus, we investigated the outcomes of inpatient ERCP among patients with malnutrition.

Methods

Adult patients who underwent ERCP from the 2014 National Inpatient Sample database were selected to conduct retrospective analysis. Patient demographics and outcomes of ERCP were compared between the groups with and without malnutrition. The outcomes of interest were inpatient mortality, length of stay, total hospital charge, and ERCP complications, including pancreatitis, cholecystitis, cholangitis, sepsis, hemorrhage, and intestinal perforation.

Results

Patients with malnutrition had longer length of stay (15.5 days vs. 6.7 days, p < 0.05) and higher total hospital charge ($149,699 vs. $71,723, p < 0.05). Malnutrition was an independent risk factor for inpatient mortality (adjusted odds ratio (aOR) 2.54, 95% confidence interval (CI): 1.70-3.82, p < 0.05), sepsis (aOR 2.20, 95% CI: 1.82-2.65, p < 0.05), hemorrhage (aOR 1.64, 95% CI: 1.05-2.56, p < 0.05), and intestinal perforation (aOR 4.29, 95% Cl:1.61-11.46, p < 0.05).

Conclusions

Our study indicates that patients with malnutrition are more likely to have worse outcomes, such as increased inpatient mortality, sepsis, hemorrhage, and intestinal perforation. Understanding the nutrition status of patients undergoing ERCP can be a useful approach for risk stratification and determining if closer surveillance of the complications is warranted.

Risk factors for adverse events associated with endoscopic retrograde cholangiopancreatography in patients with surgically altered anatomy: a retrospective study

Introduction

Endoscopic retrograde cholangiopancreatography (ERCP) is considered to be a challenge in patients with surgically altered anatomy. We aimed to identify the risk factors of ERCP-related adverse events in patients with surgically altered anatomy in our center.

Methods

We included patients with surgically altered anatomy who underwent ERCP between April 2017 and December 2020 at our center. Clinical characteristics and outcomes were analyzed in univariate and multivariate methods to identify the risk factors for adverse events.

Results

A total of 121 ERCP procedures were performed in 93 patients. The papilla or surgical anastomosis was successfully reached in 113 cases (93.4%). Diagnostic success was achieved in 106 cases (93.8%) and subsequent therapeutic success was achieved in 102 cases (96.2%). ERCP-related adverse events occurred in 31 cases (25.6%). In univariate analysis, not first time ERCP attempt, a CBD stone diameter ≥ 15 mm, multiple cannulation attempts, endoscopic papillary balloon dilation, endoscopic papillary large balloon dilation, endoscopic retrograde biliary drainage, biopsy in the bile duct or papilla, mechanical lithotripsy use, and stone retrieval basket were associated with ERCP-related adverse events. In multivariate analysis, multiple cannulation attempts (OR 5.283; 95% CI 1.088–25.659; p = 0.039), endoscopic papillary balloon dilation (OR 4.381; 95% CI 1.191–16.114; p = 0.026), and biopsy in the bile duct or papilla (OR 35.432; 95% CI 2.693–466.104; p = 0.007) were independently associated with ERCP-related adverse events.

Conclusions

ERCP in patients with surgically altered anatomy was feasible and safe. Interventions including multiple cannulation attempts, endoscopic papillary balloon dilation, and biopsy in the bile duct or papilla were independent risk factors for ERCP-related adverse events.

Surgical methods of treatment for cholecystolithiasis combined with choledocholithiasis: six years' experience of a single institution

INTRODUCTION

The optimal treatment of choledocholithiasis combined with cholecystolithiasis remains controversial. Common surgical methods vary among endoscopic retrograde cholangiopancreatography (ERCP) followed by laparoscopic cholecystectomy (LC), laparoscopic transcystic common bile duct exploration (LTCBDE), laparoscopic transductal common bile duct exploration (LCBDE) with or without T-tube drainage. The purpose of this study is to evaluate the safety and effectiveness of surgical methods and to determine the appropriate procedure for patients with cholecystolithiasis combined with choledocholithiasis.

METHODS

From January 2013 to January 2019, a total of 1555 consecutive patients diagnosed with cholecystolithiasis combined with choledocholithiasis who underwent surgical treatment in Tongji Hospital were retrospectively analyzed. Total 521 patients with intrahepatic bile duct stones underwent LC + LCBDE + T-Tube were excluded from the analysis. At last, 1034 patients who met the inclusion criteria were divided into three groups according to their surgical methods: preoperative ERCP + subsequent LC (ERCP + LC group, n = 275), LC + LCBDE + intraoperative endoscopic nasobiliary drainage (ENBD) + primary duct closure (Tri-scope group, n = 479) and LC + laparoscopic transcystic CBD exploration (LTCBDE group, n = 280). Clinical records, operative findings and postoperative follow-up were collected and analyzed.

RESULTS

There was no mortality in three groups. Common bile duct (CBD) stone clearance rate was 97.5% in ERCP + LC group, 98.7% in Tri-scope group, and 99.3% in LTCBDE group. There were no difference in terms of demographic characteristics, biochemistry findings and presentations, but the Tri-scope group had the biggest diameter and amount of stones and diameter of CBD, the LTCBDE group had the least CBD stones and the biggest diameter of cystic gall duct (CGD). ERCP + LC group have the longest hospital stay (14.16 ± 3.88 days vs 6.92 ± 1.71 days vs 10.74 ± 5.30 days, P < 0.05), also has the longest operative time than others (126.08 ± 42.79 min vs 92.31 ± 10.26 min, 99.09 ± 8.46 min, P < 0.05). Compared to ERCP + LC group, LTCBDE group and Tri-scope group had lower postoperation-leukocyte, shorter surgery duration and hospital stay (P < 0.05). Compared to the Tri-scope group, the LTCBDE group had the shorter hospital stay, extubation time and operation time and less intraoperative bleeding. There were less postoperative complications in LTCBDE group (1.1%) compared to the ERCP + LC group (3.6%) and Tri-scope group (2.2%). Follow-up time was 6 to 72 months. Four patients in ERCP + LC group and 5 in Tri-scope group reported recurrent stones.

CONCLUSION

All the three surgical methods are safe and effective. Tri-scope approach and LTCBDE approach have superiority to preoperative ERCP + LC. LC + LTCBDE shows priority over Tri-scope approach, but should be performed in selected patients. LC + LCBDE + T-Tube can be an alternative management if the other three procedures were failed. The surgeons should choose the most appropriate surgical procedure according to the preoperative examination results and intraoperative situation.

Recent advances of endoscopic retrograde cholangiopancreatography using balloon assisted endoscopy for pancreaticobiliary diseases in patients with surgically altered anatomy: Therapeutic strategy and management of difficult cases

Endoscopic retrograde cholangiopancreatography (ERCP) is an endoscopic modality established for diagnosis and treatment of pancreaticobiliary diseases. However ERCP in patients with surgically altered anatomy (SAA) has been difficult, and more invasive therapies have been primarily selected. The development of balloon assisted endoscopes (BAEs) innovatively facilitated ERCP in such patients. Recent advances of BAEs and other devices greatly contributed to increasing success of ERCP using BAEs (BAE-ERCP). Furthermore, interventions using Endoscopic Ultrasound (EUS-intervention) have been reported to be useful for pancreaticobiliary diseases in patients with SAA, which provide more options for endoscopic therapies and are also expected as a rescue therapy for difficult cases of BAE-ERCP. In order to thoroughly complete endoscopic treatment for pancreaticobiliary diseases with SAA, it is important to standardize the BAE-ERCP procedures based on the features of respective endoscopes and to establish a strategy for endoscopic treatment which includes analysis of BAE-ERCP difficult cases and selection of cases for rescue therapy. In addition, it is essential to be acquainted with the characteristics of possible adverse events of the procedure and to be able to deal with them for safe accomplishment of endoscopic treatment.

Factors predictive of the successful treatment of choledocholithiasis

BACKGROUND

Choledocholithiasis is a common complication of cholelithiasis, occurring in up to 18% of patients. Multiple treatments are often performed during the course of the management of choledocholithiasis, sometimes without success. Our study was performed identify the factors predictive of the success of treatment with retrograde endoscopic cholangiopancreatography (ERCP).

METHODS

This was a retrospective, case-control study that used data from a biliary disease database at Hospital de Clínicas de Porto Alegre (HCPA). Demographic, clinical, radiological and procedure-related variables were compared between patients with successful biliary clearance after one ERCP procedure (Group 1) and those with unsuccessful biliary clearance after one ERCP procedure (Group 2).

RESULTS

Three hundred twenty patients were included in Group 1, while 254 were included in Group 2. Multivariate analysis showed that older age, previous biliary exploration, elevated serum total bilirubin, choledocholithiasis above the level of the confluence of the hepatic ducts, stones retained in the cystic duct or Mirizzi syndrome, dilatation of the bile duct diagnosed during ERCP, and the need for suprapapillary opening were independently associated with the failure of the first ERCP to achieve bile duct clearance. The performance of imaging at the same institution prior to the procedure and the retention of stones in the duodenal papilla were associated with the success of endoscopic treatment.

CONCLUSIONS

The variables identified in this study, when considered in conjunction with the results of previously published studies, can be used to guide the choice of therapeutic methods for patients with choledocholithiasis in the future, given the significant difference in outcomes between the two groups. In the future, a prospective study should be performed to determine whether the same factors are predictive of the success of other methods of treatment (surgical or percutaneous).

Severe complications of chronic cholelithiasis treatment

BACKGROUND

Gallstone disease is a burden affecting about 15% percent of the population around the world. The complications of gallstone disease are numerous and many require emergency care. Severe complications are not uncommon and require special attention, as lethal outcome is possible.

CASE PRESENTATION

We present a retrospective analysis of eight cases describing severe complications of gallstones in patients undergoing endoscopic treatment of chronic gallstones conditions. All patients were admitted to our emergency care department following symptoms onset. The diagnostic difficulties, treatment strategies and outcomes are presented. The associated risk factors and preventative measures are discussed. Two patients developed profuse bleeding, two developed acute pancreatitis, two patients had perforation related complications. One rare case of bilioma and one case of iatrogenic injury are presented. All patients had severe condition, in two cases lethal outcome was a result of co-morbidity and difficulties in management.

CONCLUSION

Special care should be taken in patients with risk factors of severe complications in order to improve outcome and prevent the development of life-threatening conditions.

[Endoscopic Band Ligation in Endoscopic Retrograde Cholangiopancreatography Related Duodenal Perforation]

Although ERCP is a therapeutic endoscopic procedure in pacreatico-biliary diseases, its rare complications, including pancreatitis, duodenal perforation, and bleeding, can be fatal. An 87-year-old woman with a history of gallbladder cancer presented with jaundice and general weakness. Her skin color was yellowish and epigastric tenderness was confirmed on a physical examination. On abdomen CT, the gallbladder cancer directly invaded the duodenum, common bile duct, and liver parenchyma. Enlarged portocaval lymph nodes obstructed the extrahepatic bile duct. ERCP was performed for bile duct decompression. When shortening of endoscopy was achieved, the duodenal lateral wall was perforated because of the endoscopic tip pressure. After inserting endoscopic retrograde biliary drainage and endoscopic nasobiliary drainage, endoclips were placed evenly around the defect, and a detachable snare was tightened around the endoclips. Three days later, the duodenal wall was not sealed on the abdomen CT scan. Repeat endoscopy was achieved, and the endoscopic nasobiliary drainage, endoscopic retrograde biliary drainage, endoclips, and detachable snare were removed. From the distal margin of the perforation, band ligation was performed, and a detachable snare was applied. The patient's condition improved after the second procedure. A percutaneous biliary stent was inserted, and she was discharged. This case highlights the successful endoscopic management of ERCP-related duodenal perforation.

Safety and efficacy of laparoscopic common bile duct exploration for the patients with difficult biliary stones: 8 years of experiences at a single institution and literature review

BACKGROUND

Laparoscopic common bile duct exploration (LCBDE) has gained wide popularity for the treatment of choledocholithiasis. However, it remains unclear whether LCBDE is a better alternative option for the patients with difficult biliary stones. Thus, the aim of the present study was to explore the safety and efficacy of LCBDE for these patients by retrospectively analyzing our data and combing with literature review.

METHODS

Between September 2011 and February 2019, 1064 consecutive patients who underwent LCBDE at Shanghai Tenth People's Hospital were reviewed. The clinical data of patients with difficult biliary stones were selected and retrospectively analyzed.

RESULTS

Of these patients, 334 cases were confirmed with difficult biliary stones, and the overall complete stone clearance rate was 98.8% (330/334). 34 cases (10.2%) were performed with laser lithotripsy. A total of 296 patients (88.6%) underwent primary closure of common bile duct, and T-tube drainage was indwelled in 38 patients (11.4%). No bile duct injury, bleeding, perforation and surgery-related deaths were observed. The overall morbidity rate was 6.6%. 16 cases (4.8%) occurred in bile leakage with primary closure procedure, and all of them were managed successfully with conservative therapy. The median follow-up period was 9 months with stone recurrence occurring in 9 patients (2.7%). There was no evidence of bile duct stricture in all cases.

CONCLUSIONS

The current study suggests that LCBED is a considerable safe and effective option for the patients with difficult biliary stones. A randomized clinical trial is needed to further evaluate the benefit of LCBDE in this subgroup.

Development of an Online App to Predict Post-Endoscopic Retrograde Cholangiopancreatography Adverse Events Using a Single-Center Retrospective Cohort

INTRODUCTION

Endoscopic retrograde cholangiopancreatography (ERCP) is a technically demanding procedure with a high risk for adverse events (AEs).

AIM

evaluate patient- and procedure-related risk factors for ERCP-related AEs and develop an online app to estimate risk of AEs.

METHODS

retrospective study of 1,491 consecutive patients who underwent 1,991 ERCPs between 2012 and 2017 was conducted. AEs definition and severity were classified according to most recent ESGE guidelines. Each variable was tested for association with occurrence of overall AEs, post-ERCP pancreatitis (PEP) and cholangitis. For each outcome, 2 regression models were built, from which an online Shiny-based app was created.

RESULTS

Overall AE rate was 15.3%; in 19 procedures, >1 AE occurred. Main post-ERCP AE was PEP (7.5%), followed by cholangitis (4.9%), bleeding (1.3%), perforation (1%), cardiopulmonary events (0.9%), and cholecystitis (0.3%). Seventy-eight percent of AEs were mild/moderate; of severe (n = 55) and fatal (n = 20) AEs, more than half were related to infection, cardiac/pulmonary AEs, and perforation. AE-related mortality rate was 1%. When testing precannulation, procedural covariates, and ERCP findings, AE occurrence was associated with age (odds ratio [OR] 0.991), previous PEP (OR 2.198), ERCP complexity grade III/IV (OR 1.924), standard bile duct cannulation (OR 0.501), sphincterotomy (OR 1.441), metal biliary stent placement (OR 2.014), periprocedural bleeding (OR 3.024), and biliary duct lithiasis (OR 0.673).

CONCLUSION

Our app may allow an optimization of the patients' care, by helping in the process of decision-making, not only regarding patient or endoscopist's selection but also definition of an adequate and tailored surveillance plan after the procedure.

A rare case of duodenum perforation after biliary stenting under endoscopic retrograde cholangiopancreatography: a case report

Duodenal injury under endoscopic retrograde cholangiopancreatography (ERCP) is extremely rare. This study describes a case of duodenum perforation after biliary stenting under ERCP for the first time. A 67-year-old female patient was transferred to the emergency department of First Hospital of China Medical University after experiencing whole abdominal pain for 6 hours. The patient had received a biliary stent placement under ERCP at an outer hospital 6 days previously due to duodenal papillary occupy. During the operation, a small perforation caused by a biliary stent was found at the lateral side of the duodenum, but no biliary stent was found. Duodenal juice was flowing out from the perforation, Then, the perforation was opened obliquely, and an 8-cm portion of the biliary stent was removed. Gastrostomy, jejunostomy, and choledochotomy T-tube drainage procedures were subsequently performed. The patient recovered well and was discharged with the T-tube and the jejunal nutrition tube after 20 days. Four types of perforation under ERCP have been reported in previous literature, and this case report documents a rare complication from biliary stenting under ERCP. This case is different from the previous four types and can be called type V, which give general endoscopic doctors a serious warning.

Diagnosis and management of iatrogenic endoscopic perforations: European Society of Gastrointestinal Endoscopy (ESGE) Position Statement - Update 2020

1:  ESGE recommends that each center implements a written policy regarding the management of iatrogenic perforations, including the definition of procedures that carry a higher risk of this complication. This policy should be shared with the radiologists and surgeons at each center. 2 : ESGE recommends that in the case of an endoscopically identified perforation, the endoscopist reports its size and location, with an image, and statement of the endoscopic treatment that has been applied. 3:  ESGE recommends that symptoms or signs suggestive of iatrogenic perforation after an endoscopic procedure should be rapidly and carefully evaluated and documented with a computed tomography (CT) scan. 4 : ESGE recommends that endoscopic closure should be considered depending on the type of the iatrogenic perforation, its size, and the endoscopist expertise available at the center. Switch to carbon dioxide (CO2) endoscopic insufflation, diversion of digestive luminal content, and decompression of tension pneumoperitoneum or pneumothorax should also be performed. 5 : ESGE recommends that after endoscopic closure of an iatrogenic perforation, further management should be based on the estimated success of the endoscopic closure and on the general clinical condition of the patient. In the case of no or failed endoscopic closure of an iatrogenic perforation, and in patients whose clinical condition is deteriorating, hospitalization and surgical consultation are recommended.

Evaluation of complications after endoscopic retrograde cholangiopancreatography using a short type double balloon endoscope in patients with altered gastrointestinal anatomy: a single-center retrospective study of 1,576 procedures

BACKGROUND AND AIM

Endoscopic retrograde cholangiopancreatography (ERCP) using balloon-assisted endoscope such as double-balloon endoscope is even effective for patients with surgically altered anatomy. Yet comprehensive studies on complications of ERCP using balloon-assisted endoscope have not been made. We analyzed the characteristics and the causes of complications of ERCP using double-balloon endoscope (DB-ERCP) procedures and aimed to suggest effective managements.

METHODS

A total of 1576 procedures of DB-ERCP in 714 patients with surgically altered gastrointestinal anatomy in our hospital were evaluated retrospectively using a statistic analysis.

RESULTS

The overall complication occurrence rate was 5.8%. By type of complications are perforation 3.2%, mucosal laceration 0.5%, hemorrhage 1.0%, pancreatitis 0.6%, respiratory disorder 0.4%, and others 0.2%. By type of surgical reconstruction methods were Roux-en-Y reconstruction with choledocho-jejunal anastomosis 4.2%, Roux-en-Y reconstruction without choledocho-jejunal anastomosis 6.7%, pancreaticoduodenectomy 4.5%, pylorus preserving pancreaticoduodenectomy 4.2%, Billroth II gastrectomy (B-II) 11.6%, and other reconstruction method (others) 7.4%. The contributing factors calculated by a multivariate analysis were B-II (odds ratio: 1.864, 95% confidence interval: 1.001-3.471, P = 0.050) and the presence of naïve papilla (odds ratio: 3.268, 95% confidence interval: 1.426-7.490, P = 0.005).

CONCLUSIONS

DB-ERCP is a safe method with a total complication rate of 5.8% that could be considered within an acceptable range. The most common complication was the injury of the digestive tract such as perforation. Affecting risk factors for complications were B-II and the presence of naïve papilla. DB-ERCP procedures should be performed carefully of these factors.

Decision analysis of minimally invasive management options for cholecysto-choledocholithiasis

BACKGROUND

The management of cholecysto-choledocholithiasis is controversial with the risks and benefits of one versus two-stage approaches debated. This study aims to perform decision analysis of minimally invasive laparo-endoscopic approaches.

METHODS

An advanced decision tree was constructed to compare pre, intra and post-operative ERCP and laparoscopic common bile duct exploration in terms of primary ductal clearance and significant complications for patients intended to undergo laparoscopic cholecystectomy. Transition probabilities were calculated from randomised controlled trials following a comprehensive literature search. Model uncertainties were extensively tested through deterministic and probabilistic Monte Carlo sensitivity analysis. Utility outcomes were 1 and 0.5 for successful primary clearance without and with complications, respectively, and 0 for failure of primary clearance of the duct.

RESULTS

Twenty-one studies (n = 2697) were included in the analysis. At base case analysis, a laparo-endoscopic rendezvous approach had the highest utility output (0.90; no complication probability: 0.87/complication probability 0.06). Laparoscopic common bile duct exploration was ranked second with a utility output 0.87 (no complication probability: 0.82/complication probability 0.10). Pre-operative ERCP utility score was 0.84 (no complication probability: 0.78/ complication probability 0.11) and post-operative ERCP utility score was 0.78 (no complication probability: 0.71/complication probability 0.13). Monte Carlo analysis showed that laparo-endoscopic rendezvous and laparoscopic common bile duct exploration had an equal mean utility output of 0.57 (standard deviation 0.36; variance 0.13; 95% confidence interval 0.00-0.99 versus standard deviation 0.34; variance 0.12; 95% confidence interval 0.01-0.98). Laparo-endoscopic rendezvous had a superior treatment selection frequency of 39.93% followed by laparoscopic bile duct exploration (36.11%), pre-operative ERCP (20.67%) and post-operative ERCP (2.99%).

CONCLUSION

One-stage approach to the management of cholecysto-choledocholithiasis is superior to two-stage, in terms of primary clearance of the duct and risk of operative morbidity. Laparo-endoscopic rendezvous approach could offer marginal additional benefit but more high-quality randomised controlled trials are needed.

Intestinal perforations after endoscopic retrograde cholangiopancreatography in the USA: a 16-year study using the National Inpatient Sample

BACKGROUND

Intestinal perforation is a rare but feared complication of ERCP. In this study, we identify patient and hospital factors for ERCP related intestinal perforation using a large national database. We also examine the effects of intestinal perforations on hospital outcomes.

METHODS

Data were obtained from the National Inpatient Sample, the largest publicly available inpatient care database in the United States. ICD-9-CM procedure codes for all ERCP procedures conducted between 1998 and 2013. Our primary outcome of interest was the incidence of intestinal perforations after ERCP. Secondary outcomes of interest included hospital length of stay and inpatient mortality.

RESULTS

A total of 392,336 ERCP procedures were performed over the study period, met our inclusion criteria, and were analyzed. Mean age of sample was 59 years and just over 60% were females. Low volume hospitals accounted for over 85% of ERCPs. Intestinal perforations occurred at a rate of 1.2 per 1000 ERCP procedures. Patient's age was the only patient-related factor significantly associated with perforation. (OR: 1.016; 95% CI 1.009-1.025). For hospitals, teaching status was the only hospital related factor associated with intestinal perforation after ERCP (OR: 1.56; 95% CI 1.28-1.91). Length of stay was much longer in patients with ERCP related perforations and mortality risk was ten times higher in the same cohort.

CONCLUSIONS

Patients who have ERCP related perforations have longer hospital stays and have a higher mortality risk. Older patients and those who had ERCP in teaching hospitals are at a higher risk of perforation.

The Role of Laparoscopic Ultrasonography in the Evaluation of Suspected Choledocholithiasis. A Single-Center Experience

Background and objectives: Opinions differ regarding the optimal diagnostic methods for patients with suspected choledocholithiasis. The aim of this study was to assess the diagnostic accuracy of laparoscopic ultrasonography (LUS) and compare it to pre-operative magnetic resonance cholangio-pancreatography (MRCP); Materials and Methods: In all patients with suspected choledocholithiasis LUS was performed during laparoscopic cholecystectomy to evaluate biliary stones. According to availability, part of the patients had pre-operative MRCP. Data for diagnostic accuracy and main outcomes were collected prospectively and analyzed retrospectively; Results: Choledocholithiasis was detected in 178 of 297 patients by LUS (59.93%) and in 39 of 87 patients by MRCP (44.8%), p = 0.041. LUS yielded a sensitivity of 99.4%, a specificity of 94.3%, a positive predictive value of 96.1% and a negative predictive value of 99.1%. However, pre-operative MRCP had a sensitivity of 61.7%, a specificity of 92.3%, a positive predictive value of 94.9% and a negative predictive value of 51.1%. Moreover, of the 47 patients with no choledocholithiasis by MRCP, in 23 cases it was later detected by LUS (a false negative MRCP finding—38.3%), p < 0.001. Median duration of hospitalization was significantly shorter in patients evaluated without pre-operative MRCP—8 days (interquartile range – IQR 11–6) vs. 11 days (IQR 14–9), p = 0.001; Conclusions: LUS may reduce the role of pre-operative MRCP and can become a rational alternative to MRCP as a primary imaging technique for the detection of choledocholithiasis.

Life-threatening duodenal perforation complicating endoscopic retrograde cholangiopanceatography: A case series

INTRODUCTION

Endoscopic retrograde cholangiopancreatography (ERCP) is a diagnostic and therapeutic procedure for biliary and pancreatic diseases. It is associated with low rate of complications. However, some complications as duodenal perforation can be fatal.

PRESENTATION OF CASES

852 patients underwent ERCP at our hospital, six patients had a duodenal perforation (0.7 %). All patients were admitted with clinical and biochemical findings of obstructive jaundice without acute cholangitis. All patients had biliary tree dilatation confirmed on abdominal ultrasound scan and/or magnetic resonance cholangiopanceatography. Two patients were initially managed surgically, one of them died due to multi-organ failure. The other four patients were initially treated conservatively; two of them failed conservative management with one death due to sepsis, other two patients recovered without complications. The overall mortality rate was (33.3 %).

DISCUSSION

Multiple attempts of CBD cannulation and pre-cut sphincterotomy may increase the possibility of duodenal perforation. In the presence of clinical suspicion of perforation, an early radiological imaging is helpful for an early intervention.

CONCLUSION

A high index of suspicion is essential for early diagnosis and intervention to improve the clinical outcome. In difficult ERCP, performing a post-procedural fluoroscopy study with contrast injection is essential.

Computed tomography classification of endoscopic retrograde cholangiopancreatography-related perforation

Endoscopic retrograde cholangiopancreatography (ERCP)-related perforation leads to high morbidity and mortality. The Stapfer classification divides patients with different perforation locations and suggests management accordingly. The classification may be unknown if perforation is not detected during endoscopy. We classified patients with ERCP-related perforation (ERP) through computed tomography (CT) and observed the clinical outcomes with varyingly invasive management. Fifty-two cases of ERP between July 2009 and December 2017 were retrospectively reviewed. Of them, 41 who underwent CT for ERCP were included. According to their CT findings, we divided patients into air-alone (n = 16), air-fluid (n = 18), and fluid-alone (n = 7) groups. Perforation severity was graded using the Clavien-Dindo classification for surgical complications. Demographic data and clinical outcomes among different groups were analyzed. Fifteen patients (37%) had an unknown Stapfer classification. More than half of the patients in the air-fluid group had a Clavien-Dindo complication grade of >3. Four patients underwent surgical repair; all of them were from the air-fluid group. All patients in the air- and fluid-alone groups underwent medical treatment without need for subsequent salvage surgery. The air-fluid group had the longest mean hospital stay (25.1 ± 21.9 days) and the exclusive two mortality cases in this study. Patients with ERCP can be divided into groups with different outcomes according to the presence of air or fluid on CT images. Because patients with both air and fluid have the worst clinical outcome, they may require more aggressive treatment than patients with either air or fluid alone.

Role of Double-Lumen Irrigation-Suction Tube Drainage in Severe Intra-Abdominal Infection Induced by Endoscopic Sphincterotomy– Related Perforation

This study aimed to assess the efficacy of double-lumen irrigation-suction tube (DLIST) in treating severe intra-abdominal infection (SIAI) induced by endoscopic sphincterotomy–related perforation (EST-rP). We enrolled 34 consecutive patients who had been transferred to our hospital with SIAI induced by EST-rP from January 2000 to June 2018. Then they were assigned into two groups based on whether or not rescue surgery had been performed: failed nonoperative treatment group (n = 9) and failed rescue surgery treatment group (n = 25). All 34 patients received DLIST for positive draining by surgery in our hospital. Data collection included demographics, indication for endoscopic retrograde cholangiopancreatography, time to rescue surgery, surgical procedure, surgical success rate, complications, hospital stay, and postoperative outcome. The research enrolled 34 patients (ages 27–79 years, mean of 57.8 ± 12.1 years). There were no significant differences in age and gender between two groups ( P > 0.05). After being admitted, they were diagnosed with sepsis induced by SIAI (Sequential Organ Failure Assessment score range of 2–6, mean of 3.6 ± 0.95). The time from endoscopic retrograde cholangiopancreatography to rescue surgery was 12 to 336 hours (mean of 73.7 ± 72.2 hours); overall hospital stay was 15 to 405 (mean of 127.5 ± 81.5) days. The hospital stay was significantly longer in the failed rescue surgery group than that of the failed nonoperative treatment group ( P < 0.05). The overall mortality rate was 11.8 per cent (4/34). The mortality rate was 16 per cent (4/25) and 0 per cent (0/9), respectively. As a modified suction technology, DLIST placement can effectively treat SIAI induced by EST-rP and lower the mortality rate of rescue surgery treatment.

ERCP-related perforation: an analysis of operative outcomes in a large series over 12 years

BACKGROUND

Perforation is a rare but serious adverse event of endoscopic retrograde cholangiopancreatography (ERCP). The aim of this study was to determine the predictors of morbidity and mortality after surgical management of ERCP-related perforation (EP).

METHODS

The records of patients with EP requiring surgical intervention at a tertiary referral center in a 12-year period (2004-2016) were retrospectively analyzed for demography, indications for ERCP, risk factors, timing and type of surgical repair, post-operative course, hospital stay, and outcome. Multiple logistic regression was used to identify the parameters predicting survival.

RESULTS

Of 25,300 ERCPs, 380 (1.5%) had EP. Non-operative management was successful in 330 (86.8%) patients. 50 (13.2%) patients were operated for EP. Out of 50, the perforation was detected during ERCP (intra-procedure) in 32 patients (64%). In 30 patients (60%), the surgery was performed within 24 h of ERCP. Twenty patients underwent delayed surgery (after 24 h of ERCP) following the failure of initial non-operative management. The delayed surgery after an unsuccessful medical treatment had a detrimental effect on morbidity, mortality and hospital stay. Post-operative duodenal leak was the only independent predictor of 90-day mortality (p = 0.02, OR = 9.1, 95% CI 1.52-54.64). Addition of T-tube duodenostomy (TTD) to the primary repair for either type I or type II perforations increased post-operative duodenal leak (type I, p = 0.048 and type II; p = 0.001) and mortality (type I, p = 0.009 and type II, p = 0.045).

CONCLUSION

Although EP is a rare event, it has a serious impact on morbidity and mortality. Delaying of surgery following failed non-operative management worsens the prognosis. Addition of TTD to the repair is not helpful in these patients.

Endoscopic Treatment of Endoscopic Retrograde Cholangiopancreatography-Related Duodenal Perforations

BACKGROUND

Endoscopic retrograde cholangiopancreatography (ERCP)-related duodenal perforation is a rare complication associated with significant morbidity and mortality. This study evaluated endoscopic management experience and outcomes of ERCP-related duodenal perforations.

MATERIALS AND METHODS

Between March 2005 and March 2017, a total of 19,468 ERCP procedures were performed in three endoscopy units of three hospitals in China. Diagnoses, management, and outcomes were identified and retrospectively reviewed in 58 of these patients.

RESULTS

According to the classification system, 58 patients included 8 with type I, 44 with type II, 4 with type III, and 2 with type IV perforation. Of type I perforations, 7 patients underwent endoscopic closure with endoclips, and 1 patient was treated with surgical repair. Of type II perforations, 11 patients were actively managed using the fully covered self-expandable metallic stents (SEMS) to seal the perforation, and 33 patients were passively managed using nose-biliary drainage, in which 13 cases had retroperitoneal abscess formation and were successfully treated by abdominal computed tomography (CT)-guided percutaneous external drainage, but 1 patient died due to sepsis. One patient with type III perforation (pancreatic duct perforation) underwent endoscopic pancreatic duct stent placement after surgery failure. The mean hospital stay of 11 cases with type II perforation treated actively by endoscopy (26.5 ± 3.3 days) was lower compared with 33 cases who received passive conservative treatment (34.6 ± 3.9 days).

CONCLUSION

Many (especially type I and II) ERCP-related duodenal perforations can be successfully treated with endoscopic management. Active endoscopic therapy may be better than passive conservative treatment for type II perforations.

Biliary endoscopic sphincterotomy: Techniques and complications

Biliary endoscopic sphincterotomy (EST) refers to the cutting of the biliary sphincter and intraduodenal segment of the common bile duct following selective cannulation, using a high frequency current applied with a special knife, sphincterotome, inserted into the papilla. EST is either used solely for the treatment of diseases of the papilla of Vater, such as sphincter of Oddi dysfunction or to facilitate subsequent therapeutic biliary interventions, such as stone extraction, stenting, etc. It is a prerequisite for biliary interventions, thus every practitioner who performs endoscopic retrograde cholangiopancreatography needs to know different techniques and the clinical and anatomic parameters related to the efficacy and safety of the procedure. In this manuscript, we will review the indications, contraindications and techniques of biliary EST and the management of its complications.

Laparoscopic common bile duct exploration plus cholecystectomy versus endoscopic retrograde cholangiopancreatography plus laparoscopic cholecystectomy for cholecystocholedocholithiasis: a meta-analysis

BACKGROUND

The purpose of the study was to compare the safety and effectiveness of laparoscopic common bile duct exploration plus laparoscopic cholecystectomy (LCBDE+LC) with preoperative endoscopic retrograde cholangiopancreatography plus laparoscopic cholecystectomy (pre-ERCP+LC) for cholecystocholedocholithiasis.

METHODS

An electronic search was performed using the following databases: PubMed, Embase, Web of Science, the Cochrane Central Register of Controlled Trials, and ClinicalTrials.gov until 1 July 2018. Randomized controlled trials (RCTs) comparing LCBDE+LC versus pre-ERCP+LC were included. The common bile duct (CBD) stone clearance rate, postoperative bile leakage, postoperative pancreatitis, morbidity, mortality, and overall hospital stay were analyzed.

RESULTS

Twelve RCTs involving 1545 patients were included in this meta-analysis. Of the 12 RCTs, seven confirmed and five did not confirm CBD stones preoperatively. The meta-analysis showed a significantly higher CBD stone clearance rate for pre-ERCP+LC than LCBDE+LC. A similar result was found in the subgroup analysis of patients with confirmed CBD stones. A significantly lower postoperative bile leakage rate was found for pre-ERCP+LC than LCBDE+LC in all 12 RCTs and in the subgroup of patients with confirmed CBD stones. However, a significantly higher rate of pancreatitis was found in pre-ERCP+LC and in the subgroup of patients with confirmed CBD stones. LCBDE+LC was superior to pre-ERCP+LC in terms of the overall hospital stay. No significant differences were found in morbidity or mortality.

CONCLUSIONS

Pre-ERCP+LC is associated with a higher CBD stone clearance rate, lower postoperative bile leakage rate, and higher rate of pancreatitis. LCBDE+LC might help to shorten the hospital stay. Further studies on this topic are recommended.

Primary Endoscopic Closure of Duodenal Perforation Secondary to Biliary Stent Migration: A Case Report and Review of the Literature

Duodenal perforation due to biliary stent migration is rare, and it often requires surgical repair; however, endoscopic closure has recently become a viable option in the appropriate patients. We present the case of a 79-year-old female who underwent biliary stent placement for a common bile duct stricture, who subsequently was found to have a duodenal wall perforation secondary to stent migration. The stent was extracted endoscopically with successful defect closure using a ConMed^® repositional DuraClip™. We aim to contribute to the limited body of literature that describes endoscopic repair of duodenal perforation secondary to biliary stent migration using through-the-scope endoclips.

Laparoscopic Common Bile Duct Exploration Is a Safe and Effective Strategy for Elderly Patients

PURPOSE

Laparoscopic common bile duct exploration (LCBDE) has been widely used to remove common bile duct (CBD) stones. However, surgery is not considered as the first treatment choice for elderly patients with CBD stones because of the potential risk of postoperative complications. This study aims to evaluate the safety and efficiency of LCBDE for elderly patients.

METHODS

From April 2011 to October 2016, 265 consecutive patients underwent LCBDE. We performed a retrospective study and divided these patients into 2 groups. The younger group was younger than 70 years old (n = 179), and the elderly group was 70 years old or older (n = 86). We compared patient demographics, clinical characteristics, intraoperative parameters, postoperative complications, and incidence of recurrent stone between the 2 groups.

RESULTS

The elderly patients had higher preoperative morbidity of chronic diseases, such as pulmonary diseases, heart diseases, arterial hypertension, and abdominal operation history ( P < .05). There were no significant differences between the 2 groups in terms of operation time, intraoperative blood loss, conversion rate to open surgery, total cost, overall complications, and incidence of recurrent stone ( P > .05).

CONCLUSION

LCBDE can also be carried out as a safe and effective approach to remove CBD stones in elderly patients, although they have higher risk of chronic diseases.

Successful conservative treatment of type 3 injury (ductal injury) developing after ERCP

Although endoscopic retrograde cholangio-pancreatography (ERCP) is considered a safe procedure, it is associated with complications such as pancreatitis, bleeding and perforation of the bile duct, pancreatic duct and duodenum. In recent years, successful conservative treatment in selected patients with complications have increased. We present a case with successful conservative treatment of rare injury (type 3) developing after ERCP.

Temporary FC-SEMS for type II ERCP-related perforations: a case series from two referral centers and review of the literature<sup/>

BACKGROUND AND AIM

Some case reports have shown that fully covered self-expandable metal stents (FC-SEMS) are effective in cases of Stapfer Type II perforation as rescue treatment. The aim of the study was to assess the efficacy and safety of temporary placement of FC-SEMS as primary treatment for Type II perforations and review the literature regarding the use of FC-SEMS in this setting.

PATIENTS AND METHOD

Retrospective analysis of consecutive patients with Type II perforation treated with immediate placement of FC-SEMS. Primary outcomes were need for surgery and mortality rate. Secondary outcomes were complications, technical and clinical success, time to post-operative feeding, length of the hospitalization and time to stent removal.

RESULTS

Overall, 18 consecutive patients were enrolled (median age 71.5). All patients were treated with FC-SEMS (6-10 mm, 4-8 cm long). In all patients, there were no need for surgery, and no patient died. Technical and clinical success were achieved both in 100% of cases. The median time to stent removal was 43 (2-105) days. The median hospital stay was of 10 (4-21) days. Median time to post-operative feeding was 4 days (2-15).

CONCLUSION

FC-SEMS placement could be a safe and effective treatment in Type II perforations and represent a valuable development and innovation of conservative treatment.

Non-Operative Management of Type 2 ERCP-Related Retroperitoneal Duodenal Perforations: A 9-Year Experience From a Single Center

Background

No consensus exists on treatment of endoscopic retrograde cholangiopancreatography (ERCP) -related, retroperitoneal duodenal perforations. The aim of this study is to determine the incidence of post-ERCP retroperitoneal periampullary (type 2) duodenal perforations and the clinical outcome of non-surgical management.

Methods

Patients who underwent ERCP in our institution during the period from January 1, 2009 to December 31, 2017 were included. Any cases of retroperitoneal periampullary duodenal (type 2) perforation were identified. Relevant data (patient characteristics, indications, radiographic findings, time to diagnosis and surgery, surgical procedures, hospital stay and outcome) were retrospectively collected and reviewed. Results were compared to those from the existing literature.

Results

There were 24 patients with retroperitoneal type 2 duodenal perforation following 4,196 ERCPs were identified (24/4196, 0.57%) over the 9-year period. ERCP indications were: choledocholithiasis, obstructive jaundice and ampullectomy (ampullary adenoma). Diagnosis (aided by CT scan) was established within the first 12 h in the majority of patients (21/24, 87.5%) and intraprocedural in 3/24, (12.5%). Twelve patients (50%) with deteriorating clinical course were managed with CT-guided percutaneous drainage. Surgical intervention was required in two (8.3%). Overall mortality was 4.2%, 1/24 (one patient died after surgery).

Conclusions

Retroperitoneal duodenal perforation is a rare and severe ERCP complication. However, conservative management is feasible in the majority of cases.

The use of fully-covered self-expanding metallic stents for intraprocedural management of post-sphincterotomy perforations: a single-center study (with video)

BACKGROUND AND STUDY AIMS

Management of post-sphincterotomy perforations is variable, with some patients managed conservatively and other requiring surgery. Fully-covered self-expanding metal stents (FCSEMs) have been used in the past, but data is limited. The aim of this study was to report the clinical characteristics and outcomes following placement of anchored FCSEMSs for the immediate management of post-sphincterotomy perforation.

PATIENTS AND METHODS

All patients undergoing an ERCP procedure between June 2011 and December 2015 at our institution were reviewed for post-sphincterotomy perforation. All intra-procedurally recognized perforations underwent placement of FCSEMs with flexible anchoring fins and were included in this study. Data extracted included patient demographics, indication, peri-procedural details, clinical course and long-term outcome following anchored FCSEMS placement.

RESULTS

A total of 15 patients (12 females, median age-66 years) with post-sphincterotomy perforation were included. Major indications included choledocholithiasis in 9 (60 %), and 5 (33.3 %) patients had intra-ampullary or periampullary diverticula. All patients underwent placement of FCSEMS without any complication and had immediate resolution of perforation as evidenced by decrease in fluoroscopic gas and lack of contrast extravasation. None of the patients became symptomatic or needed surgery with a median 2 days of hospitalization following the procedure. Stents were removed after a median of 30.5 days and no complications were noted during follow-up after stent removal.

CONCLUSIONS

Anchored FCSEMs are safe and effective for management of intra-procedurally recognized post-sphincterotomy perforations and obviates need for surgery.

A systematic review of the management and outcome of ERCP related duodenal perforations using a standardized classification system

INTRODUCTION

The incidence of duodenal perforation after ERCP ranges from 0.09% to 1.67% and mortality up to 8%.

METHODS

This systematic review was registered in Prospective Register of Systematic Reviews, PROSPERO. Stapfer classification of ERCP-related duodenal perforations was used.

RESULTS

The systematic search yielded 259 articles. Most frequent post-ERCP perforation was Stapfer type II (58.4%), type I second most frequent perforation (17.8%) followed by Stapfer type III in 13.2% and type IV in 10.6%. Rate of NOM was lowest in Stapfer type I perforations (13%), moderate in type III lesions (58.1%) and high in other types of perforations (84.2% in type II and 84.6% in IV). In patients underwent early surgical treatment (<24 h from ERCP) the most frequent operation was simple duodenal suture with or without omentopexy (93.7%). In patients undergoing late surgical treatment (>24 h from ERCP) interventions performed were more complex. In type I lesions post-operative mortality rate was higher in patients underwent late operation (>24 h). In type I lesions, failure of NOM occurred in 42.8% of patients. In type II failure of NOM occurred in 28.9% of patients and in type III there was failure of NOM in only 11.1%, none in type IV. Postoperative mortality after NOM failure was 75% in type I, 22.5% in type II and none died after surgical treatment for failure of NOM in type III perforations.

CONCLUSIONS

This systematic review showed that in patients with Stapfer type I lesions, early surgical treatment gives better results, however the opposite seems true in Stapfer III and IV lesions.

Clinical outcomes of ERCP-related retroperitoneal perforations

Endoscopic retrograde cholangiopancreatography (ERCP)-related perforations represent rare but often severe conditions. While lesions with intraperitoneal perforation have an almost imperative indication to surgery, whether or not to manage retroperitoneal perforations surgically is still an area of debate. The aim of the present work was to review the available clinical evidence on the operatively and medically treated ERCP-related retroperitoneal perforations. From MEDLINE/PubMed databases 137 patients with retroperitoneal perforation were included from 12 studies that met the selection criteria for data investigation and analysis. Twenty-four patients were treated by prompt surgery; 113 were primarily managed conservatively and about 20% of these patients required surgery subsequently. Overall, the morbidity and mortality were 15.4% and 6.6%, respectively. Although most patients with retroperitoneal perforation may benefit from a non-operative management, a considerable number of patients fail to respond to medical treatment and require surgery afterwards. Identifying those patients who are at highest risk of poor outcome after conservative treatment should be considered a research priority.

Endoscopic Closure for EUS and ERCP Related Duodenal Perforation by Endoclips

Objective. To investigate the therapeutic safety, feasibility, and efficacy of endoclips for closing the endoscopic ultrasound (EUS) and endoscopic retrograde cholangiopancreatography (ERCP) related duodenal perforation in a retrospective study from a single center. Methods. Patients who developed EUS and ERCP related duodenal perforation between January 2012 and January 2015 were included in the study. All the cases underwent endoscopic closure by endoclips, and the efficacy, feasibility, and safety of this technique were evaluated. Results. During the study period, a total of 17,406 patients were treated by EUS and/or ERCP. EUS and ERCP related duodenal perforation occurred in 9 cases (0.05%): 2 males and 7 females. The mean age was 69 years (range: 59-79 years). The success rate of endoscopic closure by endoclips was 100%. The mean procedure time was 45 ± 12.5 min. The mean number of endoclips placed for the closure of the duodenal perforation was 7 ± 3.2. All the patients recovered completely without any severe complications. Conclusion. The endoscopic closure by using endoclips is recommended as the first-line treatment for duodenal perforation associated with EUS and ERCP.

Recent Advanced Endoscopic Management of Endoscopic Retrograde Cholangiopancreatography Related Duodenal Perforations

The management strategy for endoscopic retrograde cholangiopancreatography-related duodenal perforation can be determined based on the site and extent of injury, the patient’s condition, and time to diagnosis. Most cases of perivaterian or bile duct perforation can be managed with a biliary stent or nasobiliary drainage. Duodenal wall perforations had been treated with immediate surgical repair. However, with the development of endoscopic devices and techniques, endoscopic closure has been reported to be a safe and effective treatment that uses through-the-scope clips, ligation band, fibrin glue, endoclips and endoloops, an over-the-scope clipping device, suturing devices, covering luminal stents, and open-pore film drainage. Endoscopic therapy could be instituted in selected patients in whom perforation was identified early or during the procedure. Early diagnosis, proper conservative management, and effective endoscopic closure are required for favorable outcomes of non-surgical management. If endoscopic treatment fails, or in the cases of clinical deterioration, prompt surgical management should be considered.