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European Radiology Dec 2023To determine informational CT findings for distinguishing autoimmune pancreatitis (AIP) from pancreatic ductal adenocarcinoma (PDAC) and to review their diagnostic... (Meta-Analysis)
Meta-Analysis
OBJECTIVES
To determine informational CT findings for distinguishing autoimmune pancreatitis (AIP) from pancreatic ductal adenocarcinoma (PDAC) and to review their diagnostic accuracy.
METHODS
A systematic and detailed literature review was performed through PubMed, EMBASE, and the Cochrane library. Similar descriptors to embody the identical image finding were labeled as a single CT characteristic. We calculated the pooled diagnostic odds ratios (DORs) of each CT characteristic using a bivariate random-effects model.
RESULTS
A total of 145 various descriptors from 15 studies (including 562 AIP and 869 PDAC patients) were categorized into 16 CT characteristics. According to the pooled DOR, 16 CT characteristics were classified into three groups (suggesting AIP, suggesting PDAC, and not informational). Seven characteristics suggesting AIP were diffuse pancreatic enlargement (DOR, 48), delayed homogeneous enhancement (DOR, 46), capsule-like rim (DOR, 34), multiple pancreatic masses (DOR, 16), renal involvement (DOR, 15), retroperitoneal fibrosis (DOR, 13), and bile duct involvement (DOR, 8). Delayed homogeneous enhancement showed a pooled sensitivity of 83% and specificity of 85%. The other six characteristics showed relatively low sensitivity (12-63%) but high specificity (93-99%). Four characteristics suggesting PDAC were discrete pancreatic mass (DOR, 23), pancreatic duct cutoff (DOR, 16), upstream main pancreatic duct dilatation (DOR, 8), and upstream parenchymal atrophy (DOR, 7).
CONCLUSION
Eleven CT characteristics were informational to distinguish AIP from PDAC. Diffuse pancreatic enlargement, delayed homogeneous enhancement, and capsule-like rim suggested AIP with the highest DORs, whereas discrete pancreatic mass suggested PDAC. However, pooled sensitivities of informational CT characteristics were moderate.
CLINICAL RELEVANCE STATEMENT
This meta-analysis underscores eleven distinctive CT characteristics that aid in differentiating autoimmune pancreatitis from pancreatic adenocarcinoma, potentially preventing misdiagnoses in patients presenting with focal/diffuse pancreatic enlargement.
KEY POINTS
• Diffuse pancreatic enlargement (pooled diagnostic odds ratio [DOR], 48), delayed homogeneous enhancement (46), and capsule-like rim (34) were CT characteristics suggesting autoimmune pancreatitis. • The CT characteristics suggesting autoimmune pancreatitis, except delayed homogeneous enhancement, had a general tendency to show relatively low sensitivity (12-63%) but high specificity (93-99%). • Discrete pancreatic mass (pooled diagnostic odds ratio, 23) was the CT characteristic suggesting pancreatic ductal adenocarcinoma with the highest pooled DORs.
Topics: Humans; Pancreatic Neoplasms; Autoimmune Pancreatitis; Pancreatitis; Adenocarcinoma; Tomography, X-Ray Computed; Autoimmune Diseases; Carcinoma, Pancreatic Ductal; Diagnosis, Differential
PubMed: 37466708
DOI: 10.1007/s00330-023-09959-5 -
Endoscopy International Open Oct 2020Per-oral pancreatoscopy (POP) with intraductal lithotripsy via electrohydraulic lithotripsy (EHL) or laser lithotripsy (LL) facilitates optically-guided stone... (Review)
Review
Per-oral pancreatoscopy (POP) with intraductal lithotripsy via electrohydraulic lithotripsy (EHL) or laser lithotripsy (LL) facilitates optically-guided stone fragmentation of difficult pancreatic stones refractory to conventional endoscopic therapy. The aim of this study was to perform a systematic review and meta-analysis to evaluate the efficacy and safety of POP with intraductal lithotripsy for difficult pancreatic duct stones. Individualized search strategies were developed in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses and Meta-analysis of Observational Studies in Epidemiology guidelines. This was a cumulative meta-analysis performed by calculating pooled proportions with rates estimated using random effects models. Measured outcomes included pooled technical success, complete or partial stone fragmentation success, complete duct clearance after initial lithotripsy session, and adverse events (AEs). Ten studies (n = 302 patients; 67.72 % male; mean age 55.10 ± 3.22 years) were included with mean stone size of 10.66 ± 2.19 mm. The most common stone location was in the pancreatic head (66.17 %). Pooled technical success was 91.18 % with an overall fragmentation success of 85.77 %. Single lithotripsy session stone fragmentation and pancreatic duct clearance occurred in 62.05 % of cases. Overall, adverse events were reported in 14.09 % of patients with post-procedure pancreatitis developing in 8.73 %. Of these adverse events, 4.84 % were classified as serious. Comparing POP-EHL vs POP-LL, there was no significant difference in technical success, fragmentation success, single session duct clearance, or AEs ( > 0.0500). Based on this systematic review and meta-analysis, POP with intraductal lithotripsy appears to be an effective and relatively safe procedure for patients with difficult to remove pancreatic duct stones.
PubMed: 33043115
DOI: 10.1055/a-1236-3187 -
HPB : the Official Journal of the... Aug 2020Pancreatic duct occlusion (PDO) without anastomosis is a technique proposed to mitigate the clinical consequences of postoperative pancreatic fistulas (POPF) after... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Pancreatic duct occlusion (PDO) without anastomosis is a technique proposed to mitigate the clinical consequences of postoperative pancreatic fistulas (POPF) after pancreaticoduodenectomy. The aim of this study was to appraise the morbidity following PDO through a systematic review and meta-analysis.
METHODS
A systematic search of MEDLINE, Embase, and Web Of Science identified studies reporting outcomes of PDO following pancreaticoduodenectomy. Pooled prevalence rates of postoperative complications and mortality were computed using random-effect modeling. Meta-regression analyses were performed to examine the impact of moderators on the overall estimates.
RESULTS
Sixteen studies involving 1000 patients were included. Pooled postoperative mortality was 2.7%. A POPF was reported in 29.7% of the patients. Clinically relevant POPFs occurred in 13.5% of the patients, while intra-abdominal abscess and haemorrhages occurred in 6.7% and 5.5% of the patients, respectively. Re-operation was necessary in 7.6% of the patients. Postoperatively new onset diabetes occurred in 15.8% of patients, more frequently after the use of chemical substances for PDO (p = 0.003).
CONCLUSIONS
PDO is associated with significant morbidity including new onset of post-operative diabetes. The risk of new onset post-operative diabetes is associated with the use of chemical substance for PDO. Further evidence is needed to evaluate the potential benefits of PDO in patients at high risk of POPF.
Topics: Anastomosis, Surgical; Humans; Morbidity; Pancreatic Ducts; Pancreatic Fistula; Pancreaticoduodenectomy; Pancreaticojejunostomy; Postoperative Complications
PubMed: 32471694
DOI: 10.1016/j.hpb.2020.04.014 -
Surgical Endoscopy Nov 2022Choledocholithiasis presents in a considerable proportion of patients with gallbladder disease. There are several management options, including preoperative or... (Meta-Analysis)
Meta-Analysis
EAES rapid guideline: updated systematic review, network meta-analysis, CINeMA and GRADE assessment, and evidence-informed European recommendations on the management of common bile duct stones.
BACKGROUND
Choledocholithiasis presents in a considerable proportion of patients with gallbladder disease. There are several management options, including preoperative or intraoperative endoscopic cholangiopancreatography (ERCP), and laparoscopic common bile duct exploration (LCBDE).
OBJECTIVE
To develop evidence-informed, interdisciplinary, European recommendations on the management of common bile duct stones in the context of intact gallbladder with a clinical decision to intervene to both the gallbladder and the common bile duct stones.
METHODS
We updated a systematic review and network meta-analysis of LCBDE, preoperative, intraoperative, and postoperative ERCP. We formed evidence summaries using the GRADE and the CINeMA methodology, and a panel of general surgeons, gastroenterologists, and a patient representative contributed to the development of a GRADE evidence-to-decision framework to select among multiple interventions.
RESULTS
The panel reached unanimous consensus on the first Delphi round. We suggest LCBDE over preoperative, intraoperative, or postoperative ERCP, when surgical experience and expertise are available; intraoperative ERCP over LCBDE, preoperative or postoperative ERCP, when this is logistically feasible in a given healthcare setting; and preoperative ERCP over LCBDE or postoperative ERCP, when intraoperative ERCP is not feasible and there is insufficient experience or expertise with LCBDE (weak recommendation). The evidence summaries and decision aids are available on the platform MAGICapp ( https://app.magicapp.org/#/guideline/nJ5zyL ).
CONCLUSION
We developed a rapid guideline on the management of common bile duct stones in line with latest methodological standards. It can be used by healthcare professionals and other stakeholders to inform clinical and policy decisions.
GUIDELINE REGISTRATION NUMBER
IPGRP-2022CN170.
Topics: Humans; Cholangiopancreatography, Endoscopic Retrograde; Cholecystectomy, Laparoscopic; GRADE Approach; Network Meta-Analysis; Motion Pictures; Choledocholithiasis; Gallstones; Common Bile Duct
PubMed: 36229556
DOI: 10.1007/s00464-022-09662-4 -
BJS Open Sep 2023Groove pancreatitis is a focal form of chronic pancreatitis affecting the area of the paraduodenal groove. The aim of this systematic review was to assess the clinical...
BACKGROUND
Groove pancreatitis is a focal form of chronic pancreatitis affecting the area of the paraduodenal groove. The aim of this systematic review was to assess the clinical presentation, diagnosis and treatment of patients with groove pancreatitis.
METHODS
Medical literature databases (Embase, Medline via PubMed and Cochrane Central Register of Controlled Trials) were systematically searched for data recorded between 1 January 1990 and 31 August 2022 regarding patient characteristics, diagnosis, surgical treatment and outcomes. The following inclusion criteria were applied: RCTs, observational studies (cohort and case-control studies) and case studies with >3 cases including patients with groove pancreatitis undergoing medical, endoscopic or surgical treatment with available clinical and diagnostic data. Fisher's exact test for binary data and Mann-Whitney U test or Student t-test for continuous data were adopted for statistical analysis.
RESULTS
Of 649 studies, 44 were included, involving reports on 1404 patients with a mean age of 49 years. In 41 of the 44 studies in which patient gender was described, 86 per cent (N = 1023) of patients were male. Information on the risk factors of alcohol and nicotine was available in 37 and 23 studies, respectively. Seventy-nine per cent (N = 886) of patients had a history of excessive alcohol consumption and 83 per cent (N = 595) were smokers. Information on clinical symptoms was available in 37 of the 44 included studies and 78.5 per cent (N = 870) presented with abdominal pain. Some 27 studies comprising 920 groove pancreatitis patients were treatment oriented. Seventy-four per cent (N = 682) of patients were treated conservatively, 26.4 per cent (N = 134) underwent endoscopic treatment and 54.7 per cent (N = 503) required surgery. There was complete relief of symptoms in 35.6 per cent (N = 243) after conservative treatment, 55.2 per cent (N = 74) after endoscopic treatment and 69.6 per cent (N = 350) after surgical treatment. The median follow-up time was 42 months (range, 1-161 months).
CONCLUSION
Groove pancreatitis shows on imaging a typical triad: cystic lesions in the pancreatic duct or duodenal wall, calcifications, and thickenings of the duodenal wall. Surgery appears to be the most effective treatment modality.
Topics: Humans; Male; Middle Aged; Female; Rare Diseases; Abdominal Pain; Case-Control Studies; Conservative Treatment; Pancreatitis
PubMed: 37749756
DOI: 10.1093/bjsopen/zrad094 -
HPB : the Official Journal of the... Sep 2022Pancreatoduodenectomy is burdened by elevated postoperative morbidity. Pancreatic duct ligation or occlusion have been experimented as an alternative to reduce the... (Meta-Analysis)
Meta-Analysis Review
Postoperative morbidity and mortality after pancreatoduodenectomy with pancreatic duct occlusion compared to pancreatic anastomosis: a systematic review and meta-analysis.
BACKGROUND
Pancreatoduodenectomy is burdened by elevated postoperative morbidity. Pancreatic duct ligation or occlusion have been experimented as an alternative to reduce the insurgence of postoperative pancreatic fistula. The aim of this systematic review and meta-analysis was to compare postoperative mortality and morbidity (pancreatic fistula, postoperative hemorrhage, delayed gastric emptying, pancreatic exocrine insufficiency and diabetes mellitus) between patients undergoing pancreatic anastomosis or pancreatic duct ligation/occlusion after pancreatoduodenectomy.
METHODS
A systematic review and meta-analysis of 13 studies was conducted following the PRISMA guidelines and the Cochrane protocol (PROSPERO ID: CRD42021249232).
RESULTS
No difference in postoperative mortality was highlighted. Pancreatic anastomosis was found to be protective considering all-grades pancreatic fistula (RR: 2.38, p = 0.0005), but pancreatic duct occlusion presented a 3-folded reduced risk to develop "grade C" pancreatic fistula (RR: 0.36, p = 0.1186), although not significant. Diabetes mellitus was more often diagnosed after duct occlusion (RR: 1.61, p < 0.0001); no difference was found in terms of pancreatic exocrine insufficiency (RR: 1.19, p = 0.151).
CONCLUSION
Postoperative mortality is not influenced by the pancreatic reconstruction technique. Pancreatic anastomosis is associated with a reduction in all-grades pancreatic fistula. More high-quality studies are needed to clarify if duct sealing could reduce the prevalence of "grade C" fistula.
Topics: Anastomosis, Surgical; Exocrine Pancreatic Insufficiency; Humans; Morbidity; Pancreatic Diseases; Pancreatic Ducts; Pancreatic Fistula; Pancreaticoduodenectomy; Pancreaticojejunostomy; Postoperative Complications
PubMed: 35450800
DOI: 10.1016/j.hpb.2022.03.015 -
Langenbeck's Archives of Surgery Aug 2022To compare outcomes of interrupted (IS) and continuous (CS) suturing techniques for Roux-en-Y hepaticojejunostomy and duct-to-duct choledochocholedochostomy. (Meta-Analysis)
Meta-Analysis
AIMS
To compare outcomes of interrupted (IS) and continuous (CS) suturing techniques for Roux-en-Y hepaticojejunostomy and duct-to-duct choledochocholedochostomy.
METHODS
The study protocol was prospectively registered in PROSPERO (registration number: CRD42021286294). A systematic search of MEDLINE, CENTRAL, and Web of Science and bibliographic reference lists were conducted (last search: 14th March 2022). All comparative studies reporting outcomes of IS and CS in hepaticojejunostomy and choledochocholedochostomy were included and their risk of bias was assessed using ROBINS-I tool. Overall biliary complications, bile leak, biliary stricture, cholangitis, liver abscess, and anastomosis time were the evaluated outcome parameters.
RESULTS
Ten comparative studies (2 prospective and 8 retrospective) were included which reported 1617 patients of whom 1186 patients underwent Roux-en-Y hepaticojejunostomy (IS: 789, CS: 397) and the remaining 431 patients underwent duct-to-duct choledochocholedochostomy (IS: 168, CS: 263). Although use of IS for hepaticojejunostomy was associated with significantly longer anastomosis time (MD: 14.15 min, p=0.0002) compared to CS, there was no significant difference in overall biliary complications (OR: 1.34, p=0.11), bile leak (OR: 1.64, p=0.14), biliary stricture (OR: 0.84, p=0.65), cholangitis (OR: 1.54, p=0.35), or liver abscess (OR: 0.58, p=0.40) between two groups. Similarly, use of IS for choledochocholedochostomy was associated with no significant difference in risk of overall biliary complications (OR: 0.92, p=0.90), bile leak (OR: 1.70, p=0.28), or biliary stricture (OR: 1.07, p=0.92) compared to CS.
CONCLUSIONS
Interrupted and continuous suturing techniques for Roux-en-Y hepaticojejunostomy or duct-to-duct choledochocholedochostomy seem to have comparable clinical outcomes. The available evidence may be subject to confounding by indication with respect to diameter of bile duct. Future high-quality research is encouraged to report the outcomes with respect to duct diameter and suture material.
Topics: Anastomosis, Roux-en-Y; Anastomosis, Surgical; Bile Ducts; Cholangitis; Constriction, Pathologic; Humans; Liver Abscess; Liver Transplantation; Postoperative Complications; Prospective Studies; Retrospective Studies; Sutures
PubMed: 35552518
DOI: 10.1007/s00423-022-02548-y -
International Journal of Surgery... Jul 2023The best approach for treating benign or low-grade malignant lesions localized in the pancreatic neck or body remains debatable. Conventional pancreatoduodenectomy and... (Meta-Analysis)
Meta-Analysis
BACKGROUND
The best approach for treating benign or low-grade malignant lesions localized in the pancreatic neck or body remains debatable. Conventional pancreatoduodenectomy and distal pancreatectomy (DP) are associated with a risk of impairment of pancreatic function at long-term follow-up. With advances in technology and surgical skills, the use of central pancreatectomy (CP) has gradually increased.
OBJECTIVES
The objective was to compare the safety, feasibility, and short-term and long-term clinical benefits of CP and DP in matched cases.
METHODS
The PubMed, MEDLINE, Web of Science, Cochrane, and EMBASE databases were systematically searched to identify studies published from database inception to February 2022 that compared CP and DP. This meta-analysis was performed using R software.
RESULTS
Twenty-six studies matched the selection criteria, including 774 CP and 1713 DP cases. CP was significantly associated with longer operative time ( P <0.0001), less blood loss ( P <0.01), overall and clinically relevant pancreatic fistula ( P <0.0001), postoperative hemorrhage ( P <0.0001), reoperation ( P =0.0196), delayed gastric emptying ( P =0.0096), increased hospital stay ( P =0.0002), intra-abdominal abscess or effusion ( P =0.0161), higher morbidity ( P <0.0001) and severe morbidity ( P <0.0001) but with a significantly lower incidence of overall endocrine and exocrine insufficiency ( P <0.01), and new-onset and worsening diabetes mellitus ( P <0.0001) than DP.
CONCLUSIONS
CP should be considered as an alternative to DP in selected cases such as without pancreatic disease, length of the residual distal pancreas is more than 5 cm, branch-duct intraductal papillary mucinous neoplasms, and a low risk of postoperative pancreatic fistula after adequate evaluation.
Topics: Humans; Pancreatectomy; Pancreatic Fistula; Retrospective Studies; Pancreas; Pancreatic Neoplasms; Postoperative Complications
PubMed: 37300889
DOI: 10.1097/JS9.0000000000000326 -
Canadian Journal of Surgery. Journal... 2022Patients should be informed beforehand of the risk factors for exocrine pancreatic insufficiency (ExoPI) after pancreatic surgery; however, there are no clear identified... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Patients should be informed beforehand of the risk factors for exocrine pancreatic insufficiency (ExoPI) after pancreatic surgery; however, there are no clear identified risk factors for this condition. This study aimed to identify the preoperative, perioperative and postoperative risk factors for ExoPI after pancreatic surgery.
METHODS
We conducted a systematic search of PubMed, Scopus, SAGE, CINAHL Plus and Taylor & Francis from inception to Mar. 7, 2021, for full-text articles that included patients who had undergone pancreatic surgery. The primary outcome was the number of ExoPI events and any risk factors evaluated. We used the Newcastle-Ottawa Scale to assess study quality.
RESULTS
Twenty studies involving 4131 patients (2312 [52.3%] male, mean age 60.12 [standard deviation 14.07] yr) were included. Of the 4131 patients, 1651 (40.0%) had postoperative ExoPI. Among the 11 factors evaluated, the significant risk factors were preoperative main pancreatic duct (MPD) diameter greater than 3 mm (odds ratio [OR] 4.50, 95% confidence interval [CI] 1.06-19.05), pancreaticoduodenectomy (PD) as the surgical treatment procedure (OR 3.31, 95% CI 1.92-5.68), pancreaticogastrostomy (PG) as the anastomotic procedure (OR 3.13, 95% CI 1.83-5.35), hard pancreatic texture (OR 2.93, 95% CI 1.99-4.32) and adjuvant chemotherapy (OR 2.50, 95% CI 1.54-4.04). Gender, history of diabetes mellitus or endocrine pancreatic insufficiency (EndoPI), underlying diseases, de novo diabetes or EndoPI, pylorus-preserving PD and postoperative pancreatic fistula were not risk factors for ExoPI after pancreatic surgery.
CONCLUSION
Preoperative MPD diameter greater than 3 mm, PD, PG reconstruction, hard pancreatic texture and adjuvant chemotherapy were risk factors for the development of ExoPI after pancreatic surgery. The findings should provide useful information for patients to reduce postoperative dissatisfaction and improve quality of life.
Topics: Humans; Male; Middle Aged; Female; Quality of Life; Exocrine Pancreatic Insufficiency; Pancreaticoduodenectomy; Pancreatectomy; Pancreas; Postoperative Complications; Pancreatic Diseases
PubMed: 36384688
DOI: 10.1503/cjs.010621 -
Digestive Diseases and Sciences May 2024Therapeutic endoscopy and gastroenterology fellows often participate in endoscopic retrograde cholangiopancreatography (ERCP) during their training period. However, it...
BACKGROUND
Therapeutic endoscopy and gastroenterology fellows often participate in endoscopic retrograde cholangiopancreatography (ERCP) during their training period. However, it is generally feared that trainee involvement may increase ERCP-related complications, mainly because of the side-viewing nature of the endoscope and the higher risk of pancreatic duct cannulation. There is no concrete evidence to support this notion. This systematic review and meta-analysis aims to investigate the resultsof trainee participation on adverse events related to ERCP.
METHODS
PubMed, EMBASE, Google Scholar, SCOPUS, and Web of Science databases were searched from inception to 31 May 2023 for studies evaluating the ERCP outcomes defined as success rates, procedure time, failed attempts, and adverse events with and without trainee participation. A random effect model was used to perform the meta-analysis, and heterogeneity was assessed using the I statistics.
RESULTS
Seven studies were included in the final analysis, including 17,088 ERCPs. The pooled odds ratio (pOR) of success rate, incomplete/failed attempts in the trainee and no trainee groups were 0.466 (95% CI 0.13 to 1.66, I = 97.8%, p = 0.239) and 3.2 (95% CI 0.70 to 14.55), I = 98.5%, p = 0.134), respectively. The pOR of post-ERCP pancreatitis and bleeding in the trainee vs. no trainee groups was 0.97 (95% CI 0.76 to 1.23, I = 0%, p = 0.78) and 1.3 (95% CI 0.59 to 2.83, I = 49%, p = 0.54). The pOR of all adverse events in both groups was 1.028 (95% CI 0.917 to 1.152, I = 0%, p = 0.636). Surprisingly, the pooled std mean difference for the procedure time was 0.217 (95% - 0.093 to 0.05, I = 98.5%, p = 0.17).
CONCLUSION
This meta-analysis comprising of 17,088 ERCPs in seven studies demonstrated comparable ERCP outcomes related to trainee participation regarding success rates, procedure time, and adverse events. Trainees' involvement in ERCP within a proper teaching setting appears safe and does not compromise the overall procedure's success.
PubMed: 38713275
DOI: 10.1007/s10620-024-08452-3