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Chinese Journal of Obesity and Metabolic Diseases(Electronic Edition) ›› 2025, Vol. 11 ›› Issue (03): 185-190. doi: 10.3877/cma.j.issn.2095-9605.2025.03.004

• Article • Previous Articles    

The impact of case management combined with detailed dietary guidance on weight loss effect and dietary compliance in patients undergoing sleeve gastrectomy

Wei Guo1, Jing Wang2, Yigang Chen1,2,()   

  1. 1Wuxi No.2 People's Hospital (Jiangnan University Medical Center), Wuxi 214002, China
    2Wuxi School of Medicine, Jiangnan University, Wuxi 214122, China
  • Received:2025-02-05 Online:2025-08-30 Published:2025-10-28
  • Contact: Yigang Chen

Abstract:

Objective

To investigate the impact of case management combined with detailed dietary guidance on weight loss effect and dietary compliance in patients undergoing sleeve gastrectomy (SG).

Methods

A total of 86 patients who underwent laparoscopic sleeve gastrectomy at the Jiangnan University Medical Center between March 2023 and March 2024 were enrolled and randomly assigned to either a control group (n=43) or an observation group (n=43). The control group received routine postoperative care, while the observation group received case management combined with detailed dietary guidance in addition to routine care. Both interventions lasted for 6 months after surgery. The anthropometric parameters [weight, body mass index (BMI), and waist circumference], quality of life scores [World Health Organization Quality of Life Brief Scale (WHOQOL-BREF)], postoperative dietary compliance, and incidence of complications were compared between groups before and after the surgery.

Results

At 3 and 6 months postoperatively, both groups showed significant improvements in body measurements compared with preoperative values (P<0.05). The observation group demonstrated significantly lower weight, BMI, and waist circumference than the control group (P<0.05). Both groups exhibited significant improvements in quality of life scores compared with baseline (P<0.05), with the observation group scoring higher on all WHOQOL-BREF scales than the control group (P<0.05). After 6 months of follow-up, the observation group demonstrated significantly higher dietary compliance than the control group (P<0.05). No postoperative complications occurred in the observation group, while the control group reported 3 cases (1 gastric leakage and 2 malnutrition). However, the between-group difference was not statistically significant.

Conclusions

In patients undergoing SG, case management combined with detailed dietary guidance significantly enhances dietary compliance, promotes greater improvements in anthropometric parameters and quality of life, and may help lower the risk of postoperative malnutrition.

Key words: Case management, Detailed dietary guidance, Sleeve gastrectomy, Dietary compliance, Weight loss effect

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