Abstract
Background
Although sarcopenia increases postoperative complications following esophagectomy, its effects on prognosis remain unclear. This study was performed to identify the effect of sarcopenia on 90-day unplanned readmission and overall survival (OS) after esophagectomy.
Methods
Ninety-eight patients with esophageal cancer who underwent esophagectomy were enrolled in this study. Unplanned readmission was defined as any emergent hospitalization within 90 days after discharge. Sarcopenia, defined as low muscle mass plus low muscle strength and/or low physical performance according to the Asian consensus definition, was assessed prior to esophagectomy. Multivariate logistic regression analysis was performed to identify factors that contributed to 90-day unplanned readmission. OS was estimated using the Kaplan–Meier method, and a Cox proportional hazards model was used to assess the relationship between sarcopenia and OS.
Results
Thirty-one patients (31.6%) were diagnosed with sarcopenia. The 90-day unplanned readmission rate was significantly higher in patients with sarcopenia than those without (42.9% vs. 16.4%, respectively; p = 0.01). Multivariable logistic regression analysis showed that sarcopenia was an independent predictor of 90-day unplanned readmission [odds ratio 3.71, 95% confidence interval (CI) 1.29–11.05; p = 0.02], and the log-rank test showed that sarcopenia was associated with OS (p = 0.01). Moreover, sarcopenia was a significant predictor of OS after adjustment for age, sex, and pathological stage (hazard ratio 2.35, 95% CI 1.21–4.54; p = 0.01).
Conclusions
Sarcopenia is a risk factor for 90-day unplanned readmission and OS following esophagectomy. Assessment of sarcopenia could help to identify patients at higher risk of a poor prognosis after esophagectomy.
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