This is the Scientific Surgery Archive, which contains all randomized clinical trials in surgery that have been identified by searching the top 50 English language medical journal issues since January 1998. Compiled by Jonothan J. Earnshaw, former Editor-in-Chief, BJS
External biliary drainage and liver regeneration after major hepatectomy. BJS 2012; 99: 1569-1574.
Published: 1st October 2012
Authors: R. Otao, T. Beppu, T. Isiko, K. Mima, H. Okabe, H. Hayashi et al.
Background
Bile acid signalling and farnesoid X receptor activation are assumed to be essential for liver regeneration. This study was designed to investigate the association between serum bile acid levels and extent of liver regeneration after major hepatectomy.
Method
Patients who underwent left‐ or right‐sided hemihepatectomy between 2006 and 2009 at the authors' institution were eligible for inclusion. Patients were divided into two groups: those undergoing hemihepatectomy with external bile drainage by cystic duct tube (group 1) and those having hemihepatectomy without drainage (group 2). Serum bile acid levels were measured before and after hepatectomy. Computed tomography was used to calculate liver volume before hepatectomy and remnant liver volume on day 7 after surgery.
Results
A total of 46 patients were enrolled. Mean(s.d.) serum bile acid levels on day 3 after hemihepatectomy were significantly higher in group 2 than in group 1 (11·6(13·5) versus 2·7(2·1) µmol/l; P = 0·003). Regenerated liver volumes on day 7 after hepatectomy were significantly greater in group 2 138·1(135·9) ml versus 40·0(158·8) ml in group 1; P = 0·038). Liver regeneration volumes and rates on day 7 after hemihepatectomy were positively associated with serum bile acid levels on day 3 after hemihepatectomy (P = 0·006 and P < 0·001 respectively). The incidence of bile leakage was similar in the two groups.
Conclusion
Initial liver regeneration after major hepatectomy was less after biliary drainage and was associated with serum bile acid levels. External biliary drainage should be used judiciously after liver resection. Copyright © 2012 British Journal of Surgery Society Ltd. Published by John Wiley & Sons, Ltd.
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