J.Jpn. Surg. Soc.. 100(5): 331-334, 1999

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Feature topic

SELECTIVE AND UNSELECTIVE CLAMPING IN LIVER SURGERY

Liver surgery requires a reduction in the operative blood loss to avoid postoperative liver failure. We carried out elective hepatic resection in 229 patients with Pringle’s maneuver, which involves complete, intermittent clamping of the hepatic flow, and in 56 patients with selective vascular occlusion. Twenty-seven donors for living-related liver transplantation were also included in the latter series. The clinical outcomes were evaluated based on clamping method used. The cumulative clamping time and amount of blood loss were 64 ± 46min (mean ± SD) and 828 ± 665ml in the Pringle’s maneuver group and 88 ± 44min and 907 ± 555ml in the selective vascular occlusion group. Laboratory data showed good tolerance of vascular clamping in both groups, and serum aspartate aminotransferase levels returned to the baseline within one week. Operative morbidity rates were 23％ and 27％, respectively, and no operative deaths occurred in this series. In livingrelated liver transplantation, modified selective vascular occlusion can preserve graft viability, as verified by the fact that all the recipients in this series had a good postoperative course, except for one death and one graft loss. In conclusion, intermittent total or selective vascular clamping is indispensable procedure during hepatic resection.

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