Background: Repeat hepatectomy plays a key role in recurrent hepatic tumors. However, it is still unknown whether laparoscopic hepatectomy is suitable for recurrent liver cancers. The aim of this meta-analysis is to evaluate the efficacy and feasibility of laparoscopic repeat hepatectomy (LRH) compared with open repeat hepatectomy (ORH).
Methods: Several databases, including Web of Science, PubMed, The Cochrane Library and Ovid, were retrieved from date of inception to 31st March 2018. All articles comparing LRH and ORH were identified. Tumor characteristics and perioperative outcomes including resection type, operation time, blood loss, transfusion, complications and hospital stay were evaluated. Data were extracted and calculated using random- or fixed-effect models.
Results: A total of seven non-randomized observational clinical articles including 443 patients were analyzed. LRH was associated with significantly lower blood loss (WMD = -389.09, 95% CI -628.34 to -149.84, P = 0.001), transfusion (OR 0.16, 95% CI 0.03-0.74, P = 0.019) as well as limited hospital stay (WMD = -4.00, 95% CI -6.58 to -1.42, P = 0.002). No statistical difference was found in the field of tumor characteristics and other perioperative outcomes. In the sensitivity analysis of case-match studies, LRH was associated with significant limited hospital stay, but with significant longer operation time. There were 8 (1.8%, range 0-13.3%) cases of conversion in LRH group.
Conclusions: Based on the results of these limited data, LRH is as feasible and efficient as ORH by expert surgeons in selected patients, whose cancer is resectable at the time of surgery and who have Child-Pugh A or B cirrhosis.
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