Routine abdominal drainage after pancreatectomy: a Bayesian meta-analysis.

Area of Science:

• Gastroenterology and Hepatology
• Surgical Oncology
• Evidence-Based Medicine

Background:

• Post-pancreatectomy complications remain a significant concern.
• The role of prophylactic abdominal drainage after pancreatic surgery is debated.
• Optimizing surgical techniques to minimize morbidity is crucial.

Purpose of the Study:

• To systematically evaluate the impact of prophylactic abdominal drainage on complications following pancreatectomy.
• To compare outcomes between patients with and without abdominal drains post-pancreatectomy.
• To provide evidence-based recommendations regarding drainage strategies in pancreatic surgery.

Main Methods:

• A comprehensive systematic literature search was conducted across multiple databases following PRISMA guidelines.
• Included studies compared intraperitoneal drainage versus no drainage after pancreatic surgery.
• Statistical analyses, including subgroup analyses for Distal Pancreatectomy (DP) and Pancreatoduodenectomy (PD), were performed using meta-analysis techniques.

Main Results:

• Routine abdominal drainage was associated with significantly higher rates of postoperative pancreatic fistula (OR 2.46), clinically relevant pancreatic fistula (OR 1.92), and unplanned readmissions (OR 1.32).
• In the Distal Pancreatectomy subgroup, drainage increased pancreatic fistula rates (OR 2.48-2.75).
• For Pancreatoduodenectomy, drainage reduced mortality (OR 0.49) but increased pancreatic fistula rates (OR 1.95).

Conclusions:

• Omitting prophylactic drainage may be beneficial for patients undergoing pancreatic surgeries other than PD.
• For PD, while stopping drainage reduces fistulas, it is linked to increased mortality.
• Further randomized trials are needed to compare routine versus selective drainage strategies.