Related Experiment Video
Updated: Jun 13, 2026
Retroperitoneal Laparoscopic Debridement and Drainage for Pancreatic Abscess
Published on: March 15, 2024
Minimal access retroperitoneal pancreatic necrosectomy: improvement in morbidity and mortality with a less invasive
Michael G T Raraty1, Christopher M Halloran, Susanna Dodd
1Pancreatic Biomedical Research Unit, Royal Liverpool and Broadgreen University Hospital NHS Trust and University of Liverpool, Liverpool, United Kingdom.
Objective:
Comparison of minimal access retroperitoneal pancreatic necrosectomy (MARPN) versus open necrosectomy in the treatment of infected or nonresolving pancreatic necrosis.
Summary Of Background Data:
Infected pancreatic necrosis may lead to progressive organ failure and death. Minimal access techniques have been developed in an attempt to reduce the high mortality of open necrosectomy.
Methods:
This was a retrospective analysis on a prospective data base comprising 189 consecutive patients undergoing MARPN or open necrosectomy (August 1997 to September 2008). Outcome measures included total and postoperative ICU and hospital stays, organ dysfunction, complications and mortality using an intention to treat analysis.
Results:
Overall 137 patients underwent MARPN versus open necrosectomy in 52. Median (range) age of the patients was 57.5 (18-85) years; 118 (62%) were male. A total of 131 (69%) patients were tertiary referrals, with a median time to transfer from index hospital of 19 (2-76) days. Etiology was gallstones or alcohol in 129 cases (68%); 98 of 168 (58%) patients had a positive culture at the first procedure. Of the 137 patients, 34 (31%) had postoperative organ failure in the MARPN group, and 39 of 52 (56%) in the open group (P<0.0001); 59/137 (43%) versus 40/52 (77%), respectively, required postoperative ICU support (P<0.0001). Of the 137 patients 75 (55%) had complications in the MARPN group and 42 of 52 (81%) in the open group (P=0.001). There were 26 (19%) deaths in the MARPN group and 20 (38%) following open procedure (P=0.009). Age (P<0.0001), preoperative multiorgan failure (P<0.0001), and surgical procedure (MARPN, P=0.016) were independent predictors of mortality.
Conclusion:
This study has shown significant benefits for a minimal access approach including fewer complications and deaths compared with open necrosectomy.
Insights
Minimal access retroperitoneal pancreatic necrosectomy (MARPN) offers significant benefits over open necrosectomy for infected pancreatic necrosis. MARPN resulted in fewer complications and deaths, improving patient outcomes.
Area of Science:
- Gastroenterology
- Surgical Innovation
- Critical Care Medicine
Background:
- Infected pancreatic necrosis is a life-threatening condition associated with high mortality.
- Traditional open necrosectomy carries substantial risks.
- Minimal access techniques aim to improve outcomes for pancreatic necrosis.
Purpose of the Study:
- To compare the efficacy and safety of minimal access retroperitoneal pancreatic necrosectomy (MARPN) versus open necrosectomy.
- To evaluate outcomes in patients with infected or nonresolving pancreatic necrosis.
Main Methods:
- Retrospective analysis of a prospective database of 189 patients.
- Comparison between MARPN (n=137) and open necrosectomy (n=52) from August 1997 to September 2008.
- Intention-to-treat analysis of outcomes including hospital stay, organ dysfunction, complications, and mortality.
Main Results:
- MARPN group showed significantly lower rates of postoperative organ failure (31% vs 56%) and ICU support (43% vs 77%).
- Complication rates were lower in the MARPN group (55% vs 81%).
- Mortality was significantly reduced with MARPN (19% vs 38%).
Conclusions:
- Minimal access retroperitoneal pancreatic necrosectomy demonstrates significant advantages over open necrosectomy.
- MARPN is associated with reduced complications, organ failure, and mortality in managing pancreatic necrosis.
