Short-term Outcomes and Difficulty of Repeat Laparoscopic Liver Resection.

Objectives: To investigate the feasibility of repeat laparoscopic liver resection (Rep-LLR), including repeat anatomical resection (Rep-AR), as compared to initial-LLR (Ini-LLR).

Background: The indications of LLR have expanded to treatment of recurrent liver tumors. However, the feasibility of Rep-LLR, including Rep-AR, has not yet been adequately assessed.

Methods: Data of 297 patients who had undergone LLR were reviewed. Among the 297 patients, 235 (AR: 168) had undergone Ini-LLR and 62 (AR: 27) had undergone Rep-LLR, and the surgical outcomes were compared between the groups. In addition, multivariate analysis was performed to identify predictors of the difficulty of Rep-LLR based on the operation time and volume of blood loss.

Results: Of the 62 patients who had undergone Rep-LLR, 44, 14, and 4 had undergone second, third, and fourth repeat LRs, respectively. No significant intergroup differences were observed in regard to the operation time, blood loss, conversion rate to open surgery, postoperative morbidity, or postoperative hospital stay. However, the proportion of patients in whom the Pringle maneuver was used was significantly lower in the Rep-LLR group than in the Ini-LLR group. Multivariate analysis identified surgical procedure ≥sectionectomy at the initial/previous LR and an IWATE difficulty score of ≥6 as being independent predictors of the difficulty of Rep-LLR. Use of adhesion barriers at the initial/previous LR was associated with a decreased risk of failure to perform the Pringle maneuver during Rep-LLR.

Conclusions: Rep-LLR can offer outcomes comparable to those of Ini-LLR over the short term.