Intensified outpatient nutrition management improves body weight and skeletal muscle loss after esophageal cancer surgery: a single-center, retrospective, single-arm clinical study

Background The progression of malnutrition and sarcopenia after esophagectomy for esophageal cancer negatively influences long-term prognosis. To improve nutritional status after esophagectomy, we introduced an intensified nutrition management (iNM) protocol, in which nutritional counselling by dietitians was provided more frequently. The aim of this study was to evaluate the efficacy of iNM compared with the conventional NM (cNM). Methods We included 126 patients who underwent esophagectomy before and after NM revision, and compared nutritional status and changes in body composition after esophagectomy between the cNM and iNM groups. Nutritional parameters were assessed, and we also calculated skeletal muscle index (SMI), skeletal muscle density (SMD), and visceral fat area (VFA) using computed tomography volumetry. Results There were no significant differences in baseline characteristics or surgical outcomes between the groups. Compared with the cNM group, nutritional counselling was provided more frequently (P < 0.001) in the iNM group, and compliance rate increased from 56.3 to 91.9% (P < 0.001). Body weight loss at 4 and 6 months and SMI reduction at 6 months were significantly improved in the iNM group compared with the cNM group (P < 0.001, P = 0.032, and P = 0.023, respectively). There were no significant differences in the changes in SMD, VFA, serum albumin level, and prealbumin level between the two groups. Conclusions Outpatient iNM significantly mitigated the reduction in body weight and SMI 3-6 months after esophagectomy.