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Randomized trial of the usefulness of a bile leakage test during hepatic resection
M Ijichi1, T Takayama, H Toyoda
1Division of Hepato-Biliary-Pancreatic and Transplantation Surgery, Second Department of Surgery, Faculty of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
Hypothesis:
An intraoperative bile leakage test will assist in decreasing postoperative bile leakage in patients undergoing hepatic resection.
Design:
Randomized controlled trial.
Setting:
University hospital.
Patients:
One hundred three consecutive patients who were scheduled for hepatic resection without biliary reconstruction. Associated cirrhosis was present in 49 patients (48%), and only 24 (23%) had normal livers. Patients were randomized to undergo (n = 51) or to not undergo (n = 52) a bile leakage test, according to age, liver function, and hepatectomy method. The 2 groups were similar in baseline demographics.
Intervention:
A bile leakage test was carried out by injecting isotonic sodium chloride solution through the cystic duct, and interrupted suturing was taken for a bile leak on the transected liver surface.
Main Outcome Measures:
The incidence of postoperative bile leakage and the length of the postoperative hospital stay. Bile leakage was defined as continuous drainage, with a bilirubin level of 86 micromol/L or more (> or =5 mg/dL), beyond 1 week.
Results:
Twenty-one patients (41%) in the test group showed a bile leak, and a median of 1 site (range, 1-6 sites) was closed during the test. Postoperative bile leakage was observed in 3 patients (6%) in the test group and in 2 (4%) in the control group (P = .99). The odds ratio of the event was 1.53 (95% confidence interval, 0.25-9.44). The median postoperative hospital stay lasted 17 (range, 13-47) and 18 (range, 12-41) days for the test and control groups, respectively (P =.98).
Conclusion:
This randomized trial suggested no advantage in using a bile leakage test during hepatic resection.