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Background  Patients often experience severe weight loss after oesophagectomy. Enteral nutrition via a feeding jejunostomy tube (FT) is commonly practised. This study aimed to assess the effect of severe weight loss postoperatively and enteral nutrition via an FT on long-term prognosis after oesophagectomy.    Methods  This study analysed 317 patients who underwent minimally invasive oesophagectomy at Kobe University Hospital and Hyogo Cancer Center from 2010 to 2015. The patients’ body weight was evaluated at 3 months postoperatively. They were organised into the severe weight loss (n = 65) and moderate weight loss (n = 252) groups. Furthermore, they were categorised into the FT group (184 patients who had an FT placed during oesophagectomy) and no-FT group (133 patients without FT). Patients (119 per group) matched for the FT and no-FT groups were identified via propensity score matching.    Results  The 5-year overall survival (OS) rate in the severe weight loss group was significantly lower ( p  = 0.024). In the multivariate analysis, tumour invasion depth (pT3-4), preoperative therapy and severe weight loss had a worse OS (hazard ratio = 1.89; 95% confidence interval = 1.12–3.17, hazard ratio = 2.11; 95% confidence interval = 1.25–3.54, hazard ratio = 1.82; 95% confidence interval = 1.02–3.524, respectively). No significant differences in the number of severe weight loss patients and OS were found between the FT and no-FT groups.    Conclusion  Severe weight loss is significantly associated with poor OS. In addition, enteral nutrition via an FT did not improve the severe weight loss and OS.

Severe weight loss after minimally invasive oesophagectomy is associated with poor survival in patients with oesophageal cancer at 5 years