Sarcopenia in Resected NSCLC: Effect on Postoperative Outcomes

Journal of Thoracic Oncology : Official Publication of the International Association for the Study of Lung Cancer
Ryota NakamuraToru Terashima

Abstract

Skeletal muscle depletion, referred to as sarcopenia, has recently been identified as a risk factor for poor outcomes in various malignancies. However, the prognostic significance of sarcopenia in patients with NSCLC after surgery has not been adequately determined. This study investigated the impact of sarcopenia in patients undergoing pulmonary resection for lung cancer. This retrospective study consisted of 328 patients with pathologically confirmed NSCLC who underwent curative resection between January 2005 and April 2017. Preoperative computed tomography imaging at the third lumbar vertebrae level was assessed to measure the psoas muscle mass index (PMI, cm2/m2). Sarcopenia was defined as a cutoff value of PMI less than 6.36 cm2/m2 for males and 3.92 cm2/m2 for females, based on PMI values from "healthy" subjects. The median patient age was 71 years and 59% were male. Sarcopenia was present in 183 (55.8%) and was significantly related with increasing age (p < 0.001), being male (p < 0.001), smoking habit (p < 0.001), lower body mass index (p < 0.001), and postoperative major complication (Clavien-Dindo grade ≥3, p = 0.036). The prevalence of sarcopenia was higher in men than in women, and the prevalence increased with age ...Continue Reading

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