ABSTRACT
OBJECTIVES: There is concern that performing early endoscopic retrograde cholangiopancreatography (ERCP) in the setting of gallstone pancreatitis (GSP) with choledocholithiasis can worsen underlying pancreatitis. This study was designed to assess outcomes of early versus delayed ERCP in patients with GSP with choledocholithiasis in the absence of cholangitis. MATERIALS AND METHODS: In this single-center retrospective study, we identified 124 patients who underwent ERCP for choledocholithiasis in the setting of GSP without cholangitis between 2012 and 2022. Timing of ERCP was categorized as early (<48 hours after time of diagnosis) versus delayed (>48 hours). Data on patient demographics, complications, length of stay (LOS), and mortality were collected. RESULTS: Cannulation success rates were similar for early and delayed ERCP (97% vs 100%). The adverse event rate for early ERCP was 15% compared to 29% for delayed ERCP. LOS for patients with predicted mild pancreatitis was shorter for early versus delayed ERCP (4.2 vs 7.1 days, P = 0.007). There were no deaths in either group. CONCLUSIONS: There was a trend toward fewer adverse events and there was a shorter LOS among patients with GSP with choledocholithiasis undergoing early versus delayed ERCP. Early ERCP should be considered, particularly in patients with predicted mild pancreatitis.
Subject(s)
Cholangiopancreatography, Endoscopic Retrograde , Choledocholithiasis , Gallstones , Length of Stay , Pancreatitis , Humans , Cholangiopancreatography, Endoscopic Retrograde/adverse effects , Cholangiopancreatography, Endoscopic Retrograde/methods , Retrospective Studies , Male , Female , Pancreatitis/etiology , Middle Aged , Gallstones/complications , Gallstones/surgery , Gallstones/diagnostic imaging , Aged , Length of Stay/statistics & numerical data , Choledocholithiasis/surgery , Choledocholithiasis/complications , Choledocholithiasis/diagnostic imaging , Time Factors , Adult , Treatment OutcomeABSTRACT
Endoscopic retrograde cholangiopancreatography [ERCP] is a complex procedure with a flat learning curve. It is associated with the risk of serious complications such as pancreatitis, bleeding, cholangitis and perforation. Endosonography should therefore also be offered for the precise indication of the higher-risk ERCP. Numerous factors influence the success of ERCP. In addition to structured training for the initial acquisition of skills and a minimum number of ERCPs of varying degrees of difficulty, maintaining a good quality of ERCP also requires a regular minimum number of examinations performed per year. There is extensive evidence that shows a significant correlation between ERCP volumes and primary success rates, lower lengths of hospital stay, fewer unwanted readmissions and fewer complications. The cut-offs for differentiating between high-volume and low-volume centers were chosen inconsistently in the studies, with the highest evidence for a cut-off value of 200 ERCPs/year. The question of specialization in ERCP has been given a relevance by the current developments in german hospital reform. Here, a minimum number of ERCPs should be defined for groups of different specialization. However, a minimum number alone will not be able to achieve good treatment quality. In terms of high-quality patient care, it is necessary to offer ERCPs in specialized gastroenterology center, which, in addition to a sufficient number of ERCPs for training and to maintain competence, offer an on-call service and complementary procedures such as EUS and which are embedded in appropriately accessible clinics that have the necessary resources for complication management.
Subject(s)
Cholangiopancreatography, Endoscopic Retrograde , Gastroenterology , Postoperative Complications , Quality Improvement , Cholangiopancreatography, Endoscopic Retrograde/adverse effects , Cholangiopancreatography, Endoscopic Retrograde/standards , Humans , Germany , Gastroenterology/standards , Gastroenterology/education , Postoperative Complications/prevention & control , Postoperative Complications/etiology , Postoperative Complications/epidemiology , Treatment Outcome , Risk FactorsABSTRACT
BACKGROUND: Endoscopic retrograde cholangiopancreatography (ERCP) has become a routine endoscopic procedure that is essential for diagnosing and managing various conditions, including gallstone extraction and the treatment of bile duct and pancreatic tumors. Despite its efficacy, post-ERCP infections - particularly those caused by carbapenem-resistant Enterobacterales (CRE) - present significant risks. These risks highlight the need for accurate predictive models to enhance postprocedural care, reduce the mortality risk associated with post-ERCP CRE sepsis, and improve patient outcomes in the context of increasing antibiotic resistance. OBJECTIVE: This study aimed to examine the risk factors for 30-day mortality in patients with CRE sepsis following ERCP and to develop a nomogram for accurately predicting 30-day mortality risk. METHODS: Data from 195 patients who experienced post-ERCP CRE sepsis between January 2010 and December 2022 were analyzed. Variable selection was optimized via the least absolute shrinkage and selection operator (LASSO) regression model. Multivariate logistic regression analysis was then employed to develop a predictive model, which was evaluated in terms of discrimination, calibration, and clinical utility. Internal validation was achieved through bootstrapping. RESULTS: The nomogram included the following predictors: age > 80 years (hazard ratio [HR] 2.61), intensive care unit (ICU) admission within 90 days prior to ERCP (HR 2.64), hypoproteinemia (HR 4.55), quick Pitt bacteremia score ≥ 2 (HR 2.61), post-ERCP pancreatitis (HR 2.52), inappropriate empirical therapy (HR 3.48), delayed definitive therapy (HR 2.64), and short treatment duration (< 10 days) (HR 5.03). The model demonstrated strong discrimination and calibration. CONCLUSIONS: This study identified significant risk factors associated with 30-day mortality in patients with post-ERCP CRE sepsis and developed a nomogram to accurately predict this risk. This tool enables healthcare practitioners to provide personalized risk assessments and promptly administer appropriate therapies against CRE, thereby reducing mortality rates.
Subject(s)
Cholangiopancreatography, Endoscopic Retrograde , Enterobacteriaceae Infections , Nomograms , Sepsis , Humans , Cholangiopancreatography, Endoscopic Retrograde/adverse effects , Male , Female , Retrospective Studies , Risk Factors , Aged , Middle Aged , Sepsis/mortality , Sepsis/microbiology , Enterobacteriaceae Infections/mortality , Enterobacteriaceae Infections/drug therapy , Carbapenem-Resistant Enterobacteriaceae/isolation & purification , Anti-Bacterial Agents/therapeutic use , Anti-Bacterial Agents/pharmacology , Aged, 80 and overSubject(s)
Cholangiopancreatography, Endoscopic Retrograde , Endosonography , Stents , Humans , Cholangiopancreatography, Endoscopic Retrograde/adverse effects , Cholangiopancreatography, Endoscopic Retrograde/methods , Stents/adverse effects , Suture Techniques/instrumentation , Suture Techniques/adverse effects , Male , Female , Aged , Ultrasonography, InterventionalABSTRACT
Objective: This study investigates the effect of low-dose dexmedetomidine infusion on perioperative neurocognitive function in elderly patients undergoing endoscopic retrograde cholangiopancreatography (ERCP). Patients and Methods: This double-blind trial enrolled 80 elderly ERCP patients randomized to receive dexmedetomidine (Group D) or placebo (Group S). Group D received dexmedetomidine at 0.4 µg·kg-1·h-1 starting 15 minutes before surgery until completion, along with propofol at 1.5 mg/kg for anesthesia. Group S received saline and propofol in a similar manner. Anesthesia was maintained with dexmedetomidine at 0.4 µg·kg-1·h-1 and propofol at 1-2 mg/kg during surgery. Cognitive function was assessed using the Mini-Mental State Examination (MMSE) preoperatively and on postoperative days 1, 3, and 5. Primary outcome was perioperative neurocognitive disorder (PND) incidence on day 5; secondary outcomes included changes in perioperative IL-6, cortisol, S100-ß, hemodynamics, anesthesia parameters, postoperative pain, agitation scores, and adverse events. Results: All 80 patients completed the trial. On postoperative day 5, the cumulative probability of PND incidence was significantly lower in Group D than in Group S (12.5% vs 35%, P=0.018). Group D also had lower levels of IL-6 (F=199.472, P<0.001), S100-ß (F=2681.964, P<0.001), and cortisol (F=137.637, P<0.001). Propofol doses were lower in Group D (706.1 ± 202.4 vs 1003.3 ± 203.7, P<0.001), and bradycardia rates were higher (45% vs 15%, P=0.003), though atropine use did not significantly differ between groups. Group D showed greater stability in mean arterial pressure. Postoperative complications and adverse reactions were similar across groups. Conclusion: Perioperative low-dose dexmedetomidine infusion with propofol in elderly ERCP patients ensures safe and effective monitored anesthesia care (MAC), reducing PND incidence by mitigating peripheral inflammation and stress responses. Long-term follow-up is needed to fully evaluate PND incidence.
Subject(s)
Cholangiopancreatography, Endoscopic Retrograde , Dexmedetomidine , Humans , Dexmedetomidine/administration & dosage , Dexmedetomidine/pharmacology , Double-Blind Method , Aged , Male , Female , Cholangiopancreatography, Endoscopic Retrograde/adverse effects , Dose-Response Relationship, Drug , Aged, 80 and over , Neurocognitive Disorders/prevention & control , Propofol/administration & dosage , Propofol/adverse effects , Hypnotics and Sedatives/administration & dosage , Hypnotics and Sedatives/pharmacologyABSTRACT
RATIONALE: Complications after endoscopic retrograde cholangiopancreatography (ERCP) are diverse and usually treated with nonoperative management or percutaneous drainage; however, there are still some rare, life-threatening complications. This is an extremely rare case of biliary peritonitis caused by rupture of the intrahepatic bile duct after ERCP. PATIENT CONCERNS: A 63-year-old male underwent ERCP for common bile duct stones. On the second day after the procedure, the patient developed sepsis and abdominal distention. Contrast-enhanced computed tomography revealed a subcapsular hepatic fluid collection attached to the bile duct of segment VII. DIAGNOSES: Sepsis resulted in liver parenchyma rupture and intrahepatic bile duct injury after ERCP. Intraoperative cholangiography revealed a connection between a hole in the liver parenchymal surface and the intrahepatic bile duct. INTERVENTIONS: Surgeons performed the cholecystectomy, inserted a T-tube into the common bile duct stones, sutured the defect, and put 2 drainage tubes around the lesion. OUTCOMES: Postoperative recovery was uneventful, and the patient was discharged on the 17th postoperative day. LESSONS: Intrahepatic bile duct perforation after ERCP can lead to rupture of the liver parenchyma, biloma, or abdominal peritonitis. Multidisciplinary management is necessary to achieve favorable outcomes.
Subject(s)
Bile Ducts, Intrahepatic , Cholangiopancreatography, Endoscopic Retrograde , Humans , Male , Middle Aged , Cholangiopancreatography, Endoscopic Retrograde/adverse effects , Bile Ducts, Intrahepatic/surgery , Bile Ducts, Intrahepatic/diagnostic imaging , Gallstones/surgery , Postoperative Complications/etiology , Peritonitis/etiology , Peritonitis/surgery , Tomography, X-Ray Computed , Drainage/methods , Rupture/etiology , Rupture/surgerySubject(s)
Sphincterotomy, Endoscopic , Stents , Humans , Sphincterotomy, Endoscopic/adverse effects , Sphincterotomy, Endoscopic/methods , Stents/adverse effects , Cholangiopancreatography, Endoscopic Retrograde/adverse effects , Cholangiopancreatography, Endoscopic Retrograde/methods , Risk AssessmentSubject(s)
Cholangiopancreatography, Endoscopic Retrograde , Pancreatitis , Renal Insufficiency, Chronic , Humans , Cholangiopancreatography, Endoscopic Retrograde/adverse effects , Pancreatitis/etiology , Renal Insufficiency, Chronic/complications , Renal Insufficiency, Chronic/therapy , Pancreas , Male , Female , Middle AgedSubject(s)
Cholangiopancreatography, Endoscopic Retrograde , Pancreatitis , Tomography, X-Ray Computed , Humans , Cholangiopancreatography, Endoscopic Retrograde/adverse effects , Cholangiopancreatography, Endoscopic Retrograde/methods , Pancreatitis/etiology , Pancreatitis/epidemiology , Risk Assessment , Risk FactorsSubject(s)
Biliary Fistula , Lithotripsy , Pancreatic Fistula , Pancreatitis, Acute Necrotizing , Humans , Lithotripsy/adverse effects , Lithotripsy/methods , Pancreatitis, Acute Necrotizing/etiology , Pancreatitis, Acute Necrotizing/therapy , Pancreatitis, Acute Necrotizing/complications , Pancreatic Fistula/etiology , Pancreatic Fistula/therapy , Biliary Fistula/etiology , Biliary Fistula/therapy , Male , Cholangiopancreatography, Endoscopic Retrograde/adverse effects , Cholangiopancreatography, Endoscopic Retrograde/methods , Middle AgedABSTRACT
PURPOSE: This retrospective analysis aimed to assess the feasibility and safety of endoscopic retrograde cholangiopancreatography (ERCP) in pediatric patients by examining ERCP-related adverse events (AEs) occurring over a decade at a single center. METHODS: Pediatric patients under 18 years old who underwent ERCP at the Second Hospital of Hebei Medical University from 1/2013 to 11/2023 were included. ERCP-related AEs were defined according to ERCP-related adverse events: European Society of Gastrointestinal Endoscopy (ESGE) Guideline. Clinical data of patients experiencing ERCP-related AEs were obtained from electronic medical records for analysis. RESULTS: Over the past decade, a total of 76 pediatric patients underwent 113 ERCP procedures, including 26 patients who underwent repeat ERCP, totaling 63 procedures. There were 32 males and 44 females, with a median age of 13 years (range 3 years and 5 months-17 years and 9 months). Among all ERCP procedures, 14 (12.4%) were diagnostic and 99 (87.6%) were therapeutic, with a 100% success rate. 16 cases (14.2%) of ERCP-related AEs, all post-ERCP pancreatitis (PEP), were observed, while no other AEs defined by ESGE such as bleeding, perforation, cholangitis, cholecystitis, or sedation-related events were noted. Additionally, 23 cases (20.4%) of ERCP-related AEs not included in the ESGE definition were observed, including post-ERCP abdominal pain in 20 cases (17.7%), post-ERCP nausea and vomiting in 2 cases (1.8%), and unplanned reoperation in 1 case (0.9%). In the 26 cases of pediatric patients who underwent repeat ERCP, we observed that AEs occurred in 15 cases (57.7%) during their initial ERCP, which was much higher than the overall average level. CONCLUSIONS: Post-ERCP abdominal pain and PEP are the most common ERCP-related AEs in pediatric patients, while severe AEs such as bleeding and perforation are rare. The incidence of AEs after initial ERCP in pediatric patients who received repeat ERCP is higher than the overall average level. Based on our center's experience, we believe that ERCP can be safely performed in children over 3 years old with biliary and pancreatic diseases and obtain reliable clinical benefits. However, active monitoring and management of ERCP-related AEs are essential to improve the clinical outcomes of pediatric ERCP.
Subject(s)
Cholangiopancreatography, Endoscopic Retrograde , Humans , Male , Female , Cholangiopancreatography, Endoscopic Retrograde/adverse effects , Cholangiopancreatography, Endoscopic Retrograde/methods , Retrospective Studies , Child , Child, Preschool , Adolescent , Postoperative Complications/epidemiology , Postoperative Complications/etiology , Pancreatitis/etiology , Pancreatitis/epidemiology , Infant , Feasibility StudiesABSTRACT
Biliary complications are common after liver transplantation (LT). Endoscopic retrograde cholangiopancreatography (ERCP) is the preferred method to treat biliary complications. Nevertheless, ERCP is not without complications and may have a greater complication rate in the LT population. Knowledge of the prevalence, severity, and possible risk factors for post-ERCP pancreatitis (PEP) in LT recipients is limited. Therefore, this study aims to determine the incidence and severity of PEP and identify potential risk factors in LT recipients. This retrospective cohort included patients ≥18 years who underwent ≥1 ERCP procedures after LT between January 2010 and October 2021. Two hundred thirty-two patients were included, who underwent 260 LTs and 1125 ERCPs. PEP occurred after 23 ERCP procedures (2%) with subsequent mortality in three (13%). Multivariate logistic regression identified wire cannulation of the pancreatic duct as a significant risk factor for PEP (OR, 3.21). The complication rate of PEP after LT in this study was shown to be low and is lower compared to patients without a history of LT. Nevertheless, the mortality rate of this group of patients was notably higher.
Subject(s)
Cholangiopancreatography, Endoscopic Retrograde , Liver Transplantation , Pancreatitis , Postoperative Complications , Humans , Cholangiopancreatography, Endoscopic Retrograde/adverse effects , Liver Transplantation/adverse effects , Male , Female , Retrospective Studies , Middle Aged , Risk Factors , Pancreatitis/etiology , Postoperative Complications/etiology , Follow-Up Studies , Prognosis , Incidence , Adult , Survival Rate , AgedABSTRACT
Endoscopic retrograde cholangiopancreaticography (ERCP) and endoscopic ultrasound (EUS) guided interventions are among the most challenging procedures performed by interventional endoscopists and are associated with a significant risk of complications. Early recognition and classification of perforations allows immediate therapy which improves clinical outcomes. In this article we review the different aspects of iatrogenic perforations associated with pancreatico-biliary interventions, elucidating risk factors, diagnostic challenges and the latest therapeutic interventions.
Subject(s)
Cholangiopancreatography, Endoscopic Retrograde , Iatrogenic Disease , Humans , Cholangiopancreatography, Endoscopic Retrograde/adverse effects , Risk Factors , Endosonography , Treatment Outcome , Biliary Tract/injuries , Biliary Tract/diagnostic imagingABSTRACT
BACKGROUND: The management of type II endoscopic retrograde cholangiopancreatography (ERCP)-related perforation is still controversial. This study aimed to compare the effects of covered self-expandable metallic stent (SEMS), surgery, and conservative treatment for type II perforation. METHODS: From January 2010 to December 2021, this study collected relevant data from five large hospitals in China. The data of ERCP difficulty grading and ERCP-related perforation in 26,673 cases that underwent ERCP during 11 years were retrospectively analyzed. Of 55 patients with type II perforation, 41 patients were implanted with a biliary covered SEMS (stent group), 10 underwent surgery (surgery group), and 4 received conservative treatment (conservative group). RESULTS: Among the 55 patients with type II perforation, ERCP and computed tomography diagnostic rates of type II perforation were 10.91% (6/55) and 89.09% (49/55), respectively. The incidence of type II perforation in grade 5 ERCP (0.43%, 11/2,537) was significantly higher than that in grade 1-3 ERCP (0.16%, 32/19,471). (P = 0.004) and grade 1-4 ERCP (0.26%,12/4,665) (P = 0.008), respectively. Among the 10 patients in the surgical group, primary repair was performed in only 7 patients in whom location of the perforation could be identified. The incidence of retroperitoneal abscess was significantly lower in the stent group than in the surgery group (P = 0.018) and the conservative group (P = 0.001), respectively. The average hospital stay in the stent group was shorter than that in the surgery group (P = 0.000) and conservative group (P = 0.001), respectively. CONCLUSIONS: The incidence of type II perforation was dependent on the degree of difficulty of ERCP. The treatment of type II perforation with a covered SEMS can significantly reduce the incidence of retroperitoneal abscess and shorten the hospital stay, with better results than surgical and conservative treatments.
Subject(s)
Cholangiopancreatography, Endoscopic Retrograde , Self Expandable Metallic Stents , Humans , Cholangiopancreatography, Endoscopic Retrograde/adverse effects , Retrospective Studies , Male , Female , Middle Aged , Aged , Conservative Treatment , Adult , China/epidemiology , Tomography, X-Ray Computed , Length of Stay/statistics & numerical data , Intestinal Perforation/etiology , Intestinal Perforation/surgery , Intestinal Perforation/therapyABSTRACT
BACKGROUND: In the 21st century, endoscopic retrograde cholangiopancreatography (ERCP) has emerged as a diagnostic and therapeutic method for diseases of the pancreaticobiliary duct system. However, like any other diagnostic and therapeutic method, ERCP carries the risk of unwanted complications. MATERIAL AND METHODS: We retrospectively followed patients who underwent ERCP examinations from January 2013 to April 2023. We focused on early post-ERCP complications and their risk factors, prevention, treatment, and mortality. RESULTS: A total of 4,814 patients were recorded, of which 175 patients had early post-ERCP complications, including acute pancreatitis, acute cholangitis, perforation, and bleeding. We focused on the statistical significance of risk factors such as BMI, repeated ERCP, bleeding disorders, and repeated pancreatitis or cholangitis. CONCLUSION: Ensuring proper preparation and appropriate indication for ERCP examination can significantly mitigate the risk of post-ERCP complications. Additionally, early diagnosis and prompt treatment of any post-ERCP complications are essential strategies for reducing mortality associated with these conditions (Tab. 3, Fig. 3, Ref. 32). Text in PDF www.elis.sk Keywords: post-ERCP complication, risk factor, BMI, prevention.
Subject(s)
Cholangiopancreatography, Endoscopic Retrograde , Pancreatitis , Postoperative Complications , Humans , Cholangiopancreatography, Endoscopic Retrograde/adverse effects , Risk Factors , Retrospective Studies , Female , Male , Middle Aged , Aged , Postoperative Complications/etiology , Postoperative Complications/diagnosis , Pancreatitis/etiology , Cholangitis/etiology , Adult , Aged, 80 and over , Body Mass IndexSubject(s)
Pancreatic Ducts , Postoperative Hemorrhage , Sphincterotomy, Endoscopic , Humans , Pancreatic Ducts/surgery , Sphincterotomy, Endoscopic/adverse effects , Sphincterotomy, Endoscopic/methods , Postoperative Hemorrhage/etiology , Postoperative Hemorrhage/therapy , Surgical Instruments , Male , Cholangiopancreatography, Endoscopic Retrograde/methods , Cholangiopancreatography, Endoscopic Retrograde/adverse effects , Female , Middle Aged , AgedABSTRACT
INTRODUCTION: Endoscopic retrograde cholangiopancreatography (ERCP) plays an indispensable role in treating pancreato-biliary diseases but carries a risk of post-ERCP pancreatitis (PEP). Despite advances in the prevention strategies, prevention of PEP remains imperfect, necessitating more refined hydration methods. This study investigates the effectiveness of lactated Ringer's solution versus plasma solution in preventing PEP. METHOD AND ANALYSIS: This multicentre, double-blind, randomised controlled trial, will be initiated by the investigator-sponsor, and conducted in three tertiary centres in South Korea. The aim of this study is to assess the effectiveness of hydration in preventing PEP in patients with naïve papillae. It will target patients with naïve papillae, focusing on those at medium to high risk of PEP. Patients aged ≤18 years and those with serious comorbidities, acute/chronic pancreatitis and various other medical conditions will be excluded. Eligible participants will be randomly assigned into two arms in equal numbers: (1) PEP prevention using lactated Ringer's solution and (2) PEP prevention using plasma solution. The primary outcome of this study will be the occurrence of PEP, and secondary outcomes will be additional risk factors and potential adverse events related to ERCP. With a total enrolment of 844 patients, the study will be able to detect significant differences between the intervention arms. ETHICS AND DISSEMINATION: Ethical approval is obtained from each institution (Asan Medical Centre, 2023-0382; Seoul National University Hospital, H-2302-05-1404; Samsung Medical Centre, SMC 2023-02-001-009). All participants provided informed consent following clear explanation of the study procedures. The results of the study will be disseminated in peer-reviewed journals and research conferences. TRIAL REGISTRATION NUMBER: NCT05832047. PROTOCOL VERSION: Ver 4.1 (2023).
Subject(s)
Cholangiopancreatography, Endoscopic Retrograde , Pancreatitis , Ringer's Lactate , Humans , Cholangiopancreatography, Endoscopic Retrograde/adverse effects , Pancreatitis/prevention & control , Pancreatitis/etiology , Double-Blind Method , Ringer's Lactate/administration & dosage , Republic of Korea , Randomized Controlled Trials as Topic , Multicenter Studies as Topic , Fluid Therapy/methods , Male , FemaleABSTRACT
BACKGROUND: Acute pancreatitis is the most common complication of endoscopic retrograde cholangiopancreatography (ERCP), with an incidence of approximately 9.7% according to some literature reviews. Recent clinical guidelines propose that glyceryl trinitrate (GTN) can reduce the incidence of post-ERCP pancreatitis (PEP). However, currently, no guidelines provide an exact opinion on GTN and nonsteroidal anti-inflammatory drugs (NSAIDs) to prevent post-ERCP pancreatitis. OBJECTIVE: A meta-analysis was performed of published, full-length, randomized controlled trials (RCTs) evaluating the effects of prophylactic use of GTN, including GTN alone or GTN in combination with NSAIDs, on the prevention of PEP. METHODS: Literature searches were conducted using PubMed, Embase, Web of Science, and The Cochrane Library. Search terms included "endoscopic retrograde cholangiopancreatography" OR "ERCP," "OR 'PEP' OR 'post-endoscopic retrograde cholangiopancreatography pancreatitis', pancreatitis," "GTN" OR "glyceryl trinitrate" OR "nitroglycerin," "NSAIDs" OR "Nonsteroidal Anti-inflammatory Drugs" and limited to RCT. RESULTS: A total of 10 RCTs comprising 3240 patients undergoing ERCP were included. Meta-analysis revealed that the administration of GTN was associated with a significant reduction in the overall incidence of PEP. Moreover, PEP incidence was significantly lower in the GTN combined with the NSAIDs group than in the GTN alone group. GTN alone or GTN combined with NSAIDs may not reduce the severity of PEP (risk ratioâ =â 0.64; 95% confidence interval: 0.41-0.99; Pâ =â .04). The difference in incidence between the 2 groups is 1.01% (6/594) in the GTN with NSAIDs group and 2.36% (14/592) in the placebo group. CONCLUSION: GTN has a significant benefit in preventing postoperative ERCP pancreatitis (Pâ <â .001). And neither GTN nor GTN plus NSAIDs reduces the incidence of non-mild ERCP postoperative pancreatitis. These conclusions need to be confirmed by high-quality randomized controlled studies with multicenter, large samples, and long-term follow-up.