Abstract
Background
Sarcopenia influences overall survival (OS) and tumor progression in non-small cell lung cancer (NSCLC) patients. However, the impact of postoperative complications and the outcome of limited surgery have not been highlighted. Therefore, the aim of this study is to elucidate the prognostic impact of sarcopenia on surgical outcomes.
Patients and Methods
This study included NSCLC patients who had undergone lung cancer resection between 2007 and 2017. Sarcopenia was confirmed based on computed tomography of the cross-sectional area of the psoas muscle at the third lumbar vertebra level. We used propensity score-matched analysis to elucidate the impact of sarcopenia on postoperative complications and limited surgery.
Results
A total of 391 patients were enrolled, including 198 sarcopenic patients. Multivariate analysis showed that sarcopenia was an independent unfavorable prognostic factor associated with OS and recurrence-free survival [hazard ratio (HR), 3.33, P < 0.001; HR, 2.76, P < 0.001, respectively]. Regarding the incidence of postoperative complications, there was no difference between sarcopenic and nonsarcopenic patients (69/198 versus 55/193, P = 0.19). After propensity score matching, among patients without sarcopenia, the 5-year OS was lower in those with limited surgery than in those with standard surgery (70.7% vs. 96.4%, P = 0.011). In contrast, among sarcopenic patients, there was no difference in the 5-year OS between patients with limited surgery and those with standard surgery (53.2% vs. 60.7%, P = 0.66).
Conclusions
Sarcopenia is a prognostic predictor for poor OS and may contribute to the selection of limited surgery for sarcopenic patients. Preoperative assessment of sarcopenia may provide clinically important information.
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Shinohara, S., Otsuki, R., Kobayashi, K. et al. Impact of Sarcopenia on Surgical Outcomes in Non-small Cell Lung Cancer. Ann Surg Oncol 27, 2427–2435 (2020). https://doi.org/10.1245/s10434-020-08224-z
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DOI: https://doi.org/10.1245/s10434-020-08224-z