Feasibility study of two-stage hepatectomy for bilobar liver metastases.

Background: The aim of this study was to analyze the feasibility and early outcomes of 2-stage liver resection for bilobar metastases.

Methods: Data from 39 consecutive patients undergoing 2-stage hepatectomy between 2004 and 2010 were prospectively collected.

Results: The median age was 59 years (range, 33-79 years), and the ratio of men to women was 1.8:1. Metastases were colorectal carcinoma (n = 33), neuroendocrine tumors (n = 3), gastrointestinal stromal tumor (n = 1), ocular melanoma (n = 1), and salivary gland carcinoma (n = 1). Perioperative chemotherapy was given to 32 patients (82%). Twenty-nine patients (74%) underwent portal venous embolization. Radiofrequency ablation was used in 8 patients (21%). Twenty-seven patients (69%) successfully completed clearance. For the 1st and 2nd stages, the median lengths of stay were 11 days (range, 6-53 days) and 13 days (range, 6-44 days), and morbidity rates were 23% and 56%. Liver insufficiency occurred in 2 (5%) and 6 (22%) patients. Overall mortality was 2.6%. For colorectal metastases, median survival in successes versus failures was 24 versus 10 months (P = .03), and 3-year survival was 30% versus 0%.

Conclusions: Two-stage hepatectomy is feasible, with 69% of patients achieving clearance with low mortality. Morbidity is significant, particularly transient hepatic insufficiency.