Mobile health–supported comprehensive intervention model (CIMmH) improved physical fitness of patients with esophageal cancer after esophagectomy: Prospective randomized controlled trial.

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1634 Background: Esophageal cancer (EC) significantly impacts patients’ quality of life (QOL) post-esophagectomy, with malnutrition, reduced physical activity, and psychological distress being common. Our preliminary study indicated that a Mobile Health-Supported Comprehensive Intervention Model (CIMmH) is safe, feasible, and efficacious in improving QOL and physical fitness for EC patients. This randomized controlled trial (RCT) evaluates the effectiveness of CIMmH in promoting post-surgery recovery for EC patients. Methods: EC patients undergoing modified McKeown esophagectomy were randomly allocated to either the intervention group, receiving the CIMmH protocol (nutrition, exercise, psychological support), or the control group, receiving standard postoperative care. Outcomes were assessed at baseline, 1 month, and 3 months post-surgery. Key metrics included sarcopenia (assessed via skeletal muscle index and psoas muscle thickness on CT scans), quality of survival (EORTC-QLQ-C30 and EORTC-QLQ-QES-18), physical fitness (six-minute walk distance, SMWD), and nutritional status (body weight). Results: Of 111 screened patients, 80 were enrolled (40 per group). Follow-up assessments were completed by 76 patients at 1 month and 69 at 3 months. At 1 month, the intervention group showed a significant improvement in SMWD compared to the control group ( P=0.020), though no difference was observed at 3 months ( P=0.835). The intervention group also demonstrated a significant increase in the skeletal muscle index at 3 months ( P=0.039), alongside notable improvements in the 30-second arm curl test and cough symptom relief ( P=0.027 and P=0.045, respectively). No significant differences in QOL scores or body weight were observed between groups at any time point. Conclusions: CIMmH significantly enhances short-term physical fitness in EC patients post-esophagectomy. These findings suggest the need for further refinement and optimization of the intervention to maximize its long-term effectiveness and impact on QOL. Clinical trial information: ChiCTR2000041007 .

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