Journal
CLINICAL NUTRITION
Volume 35, Issue 3, Pages 724-730Publisher
CHURCHILL LIVINGSTONE
DOI: 10.1016/j.clnu.2015.05.011
Keywords
Sarcopenia; Sarcopenic obesity; Body composition; Oesophageal cancer; Chemotherapy
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Background & aims: Profound weight loss and malnutrition subsequent to severe dysphagia and cancer cachexia are cardinal symptoms in oesophageal cancer (OC). Low muscle mass/sarcopenia has been linked to toxicity during neo-adjuvant therapy in other cancers, with worser effects in sarcopenic obesity. In this study the association between sarcopenia and/or sarcopenic obesity and dose limiting toxicity (DLT) during cycle one chemotherapy in resectable OC patients was evaluated. Methods: Body composition was assessed from computed tomography scans of 72 consecutively diagnosed OC patients. Lean body mass and body fat mass were estimated. Patients were grouped as sarcopenic or non-sarcopenic based on pre-defined gender-specific cut-offs for sarcopenia, and as underweight/normal (BMI < 25) or overweight/obese (BMI >= 25). Sarcopenic obesity was defined as sarcopenia combined with overweight and obesity. DLT was defined as temporary reduction/delay or permanent discontinuation of drugs due to adverse effects. Odds ratios for developing toxicity were ascertained using multiple logistic regression. Results: Of 72 patients, 85% (n = 61) were males. Sarcopenia and sarcopenic obesity were present in 31 (43%) and 10 (14%), respectively, prior to chemotherapy. Sarcopenic patients had significantly lower adipose tissue index (p = 0.02) compared to non-sarcopenic patients. Patients with DLT (n = 24) had lower skeletal muscle mass (p = 0.04) than those without DLT. Sarcopenic patients (OR = 2.47; 95% CI: 0.88-6.93) showed a trend towards increased DLT risk (p < 0.10). Logistic regression with BMI as an interaction term indicated higher DLT risk in sarcopenic patients with normal BMI (OR = 1.60; 95% CI 0.30-8.40), but was non-significant. In the sarcopenic obese, risk of DLT increased significantly (OR = 5.54; 95% CI 1.12-27.44). Conclusions: Sarcopenic and sarcopenic obese OC patients may be at a higher risk for developing DLT during chemotherapy compared to non-sarcopenic OC patients. (C) 2015 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism. All rights reserved.
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