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07.10.2016 | Original Scientific Report | Ausgabe 2/2017

World Journal of Surgery 2/2017

Surgery-Related Muscle Loss and Its Association with Postoperative Complications After Major Hepatectomy with Extrahepatic Bile Duct Resection

Zeitschrift:
World Journal of Surgery > Ausgabe 2/2017
Autoren:
Hidehiko Otsuji, Yukihiro Yokoyama, Tomoki Ebata, Tsuyoshi Igami, Gen Sugawara, Takashi Mizuno, Junpei Yamaguchi, Masato Nagino

Abstract

Background

Several studies have reported that preoperative sarcopenia negatively impacts postoperative outcomes. Meanwhile, changes in skeletal muscle mass during the acute phase after surgery and their association with postoperative complications are unknown.

Objective

The objective of this study was to investigate the relation between changes in skeletal muscle mass and postoperative complications after major hepatectomy with extrahepatic bile duct resection.

Methods

This study included 254 patients who underwent major hepatectomies with extrahepatic bile duct resections. Total psoas muscle area (TPA) was measured using abdominal computed tomography images obtained before and 1 week after surgery. The percent change in TPA after surgery was calculated. Patients were stratified by sex-specific tertiles according to the extent of muscle mass change by percentage. Surgery-related muscle loss (SML) was defined as the lowest tertile of percent change in TPA.

Results

Male patients with a percent change of TPA lower than −5.0 % (n = 54) and female patients with that lower than −2.6 % (n = 31) were included in the lowest tertile and were categorized into a group with SML. The incidence rates of major complications, pancreatic fistula, infectious complications, and mortality were all significantly higher in the group with SML than in the group without SML. By multivariate analyses, SML was identified as an independent factor associated with major complications (odds ratio 3.21; 95 % confidential interval 1.82–5.76, p < 0.001).

Conclusions

SML is significantly associated with postoperative morbidity and mortality in patients who underwent major hepatectomies with extrahepatic bile duct resections.

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