Abstract

The influence of prolonged intermittent Pringle maneuver (IPM) on post-hepatectomy liver failure (PHLF) remains unclear. We evaluated the impact of the prolonged IPM on PHLF in patients undergoing open and laparoscopic hepatectomy. We retrospectively included 546 patients who underwent hepatectomy using IPM. The patients were divided into open (n = 294) and laparoscopic (n = 252) groups. Odds ratios for PHLF occurrence were estimated in each group according to cumulative Pringle time (CPT). The cut-off value was set at CPT of 120min. Risk factors for PHLF were evaluated in the open and laparoscopic groups. Additionally, we analyzed the post-operative outcomes in the open and laparoscopic groups with CPT ≥ 120min and performed propensity score matching analysis based on PFLF-associated factors. In the open group, the risk of PHLF increased as CPT increased, particularly after 120min. However, in the laparoscopic group, PHLF did not occur at less than 60min, and the risk of PHLF was not significantly different at more than 60min. Multivariate analysis identified CPT ≥ 120min as an independent risk factor for PHLF in the open group (p < 0.001), but not in the laparoscopic group. Propensity score matching analysis showed that the PHLF rate was significantly lower in the laparoscopic group with CPT ≥ 120min (p = 0.027). The post-operative transaminase levels were significantly lower in the laparoscopic group with CPT ≥ 120min. Laparoscopic hepatectomy may cause less PHLF with prolonged IPM compared with open hepatectomy.

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