ArticleJPRAS open2024
The primary prevention of pancreatic fistula using a vascularised rectus abdominis muscle flap - A porcine model.
Article in JPRAS open, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors at 3 institutions in 1 country.
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Abstract
Background: A pancreatic fistula is one of the most devastating complications following a Whipple's procedure. Fistula rates remain high despite various modifications to surgical techniques. We propose the use of a vascularised muscle flap in the primary prevention of pancreatic fistulas. Method: A distal pancreatectomy was performed on 5 pigs in our porcine model. A pancreaticojejunal (PJ) anastomotic leak was simulated. The pigs were divided into treatment (4 pigs) and control groups (1 pig). A left pedicled rectus abdominis flap was wrapped around the PJ anastomosis for the treatment group and omitted for the control group. Serum and drain amylase levels were recorded. The PJ-rectus abdominis flap complex was evaluated histologically. Results: There was no biochemical evidence of anastomotic leak in the treatment group. The drain-serum amylase ratio was less than 1.5 in the treatment group (p=0.006). Microscopically, the muscle adjacent to the anastomotic leak showed mild necrotic changes with an affected muscle depth of less than 10%. Conclusion: The vascularised rectus abdominis muscle is a durable flap to withstand proteolytic pancreatic enzymes. It is able to provide a water-tight seal around the PJ anastomosis and mitigate intraperitoneal haemorrhage and infection caused by erosion from the pancreatic fistula.
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