Abstract
Background Limiting backflow bleeding from the hepatic veins is a priority when performing hepatectomy. However, hepatic vein encirclement is difficult, especially in re-resection. We verified the presence and trajectory of the right inferior phrenic vein (RIPV), which could be a useful anatomic landmark to guide surgeons in targeting the extrahepatic right hepatic vein (RHV) before dissection. Methods Between May 2001 and January 2005, 100 consecutive patients with liver tumors were enrolled and underwent hepatectomy: 77 patients underwent surgery for tumors located in the right hemiliver. Results RIPV was detected in all but 1 patient (99%), and its trajectory was always guided toward the extrahepatic RHV. The only patient in whom RIPV was not detected had undergone prior liver resection and interstitial therapies for colorectal cancer liver metastases. Conclusions Apart from exceptional conditions, detection of the RIPV is always feasible and allows safe surgical dissection while approaching the extrahepatic RHV before hepatic resection.
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