• Kaichao Liu, Saisai Sun, Xiaolin Liu, Jing Luo, Xiang Gao, Zhiyun Xu, Qin Zhang, Jun Bao, and Binhui Ren.
• Department of Thoracic Surgery, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China.
• Support Care Cancer. 2021 Mar 1; 29 (3): 1265-1274.

BackgroundPerioperative malnutrition is common in patients undergoing esophagectomy, and nutritional support is critical for postoperative recovery in these patients. But few studies reported which characteristics of these patients were associated with post-esophagectomy inadequate calorie intake. This study aimed to explore which patients were more likely to have inadequate calories immediately after esophagectomy and the impact on clinical outcomes.MethodsFrom January 2018 to June 2019, patients undergoing esophagectomy were retrospectively divided into the "adequate calorie group" and the "inadequate calorie group" according to whether they met daily calorie requirements in a week after esophagectomy. Caloric requirements met rate and clinical outcomes were compared between patients with and without complications, and with weight > 70 kg or ≤ 70 kg.ResultsPatients in the inadequate calorie group (n = 104) had significantly higher weight (p < 0.001), lean body mass (p = 0.028), and BMI (p = 0.001) than the adequate calorie group (n = 46). Weight loss after esophagectomy was reduced (p = 0.043) in the adequate calorie group. Patients with complications had lower rate of adequate calorie intake (72.8% vs. 63.8%). The caloric requirements met rate in patients with weigh ≤ 70 kg was significantly higher than those weight > 70 kg (80.2% vs. 43.2%, p < 0.001).ConclusionThe weights of patients having inadequate calories in a week after esophagectomy were significantly heavier than those having adequate calories. Heavier patients after esophagectomy should attract more attention to their nutrition support.Trial RegistrationThis trial was registered ( ChiCTR1900025557 ).

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