ArticleSurgery today2026
A high ratio of visceral fat area to psoas muscle area predicts poor overall survival for esophageal cancer patients receiving definitive chemoradiotherapy.
Article in Surgery today, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeThe ratio of visceral fat area to psoas muscle area (V/P ratio) is a computed tomography (CT)-derived marker of visceral adiposity relative to skeletal muscle mass. We evaluated the prognostic value of the V/P ratio in patients with esophageal cancer undergoing definitive chemoradiotherapy (CRT).
methodsThe subjects of this retrospective analysis were 73 patients treated with definitive CRT between 2008 and 2017. The V/P ratio was measured at the third lumbar vertebra on CT. We performed multivariate Cox regression for overall survival (OS) and cancer-specific survival (CSS).
resultsThe median V/P ratio was 5.31 (interquartile range, 2.60-9.46). The visceral fat area (p < 0.001), body mass index (BMI) (p < 0.001), proportion of patients with a Charlson comorbidity index (CCI) ≥ 1 (p = 0.001), and age-adjusted CCI (p = 0.003) were significantly associated with the V/P ratio. After adjustment for clinical factors, the V/P ratio was found to be an independent prognostic factor for OS (HR 2.11 per 1-SD increase; 95% CI, 1.35-3.29; p = 0.001) and CSS (HR 2.49; 95% CI, 1.55-4.00; p < 0.001). The association persisted in non-obese patients.
conclusionThe V/P ratio was associated with poor OS for esophageal cancer patients receiving definitive CRT, even for those who were not obese.
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