广东医学2026，Vol.47Issue(1)：29-33,5.DOI:10.13820/j.cnki.gdyx.20252284
内脏脂肪面积联合性别预测腹腔镜胃旁路手术时长的临床价值
Clinical value of visceral fat area combined with sex in predicting operative time of laparoscopic Roux-en-Y gastric bypass
摘要
Abstract
Objective To investigate the predictive value of visceral fat area(VFA)for operative time in laparo-scopic Roux-en-Y gastric bypass(LRYGB)and to evaluate whether combining VFA with sex improves prediction accu-racy,thereby providing evidence for optimized surgical planning in obese patients with type 2 diabetes mellitus(T2 DM).Methods Clinical data of 47 obese patients with T2DM(BMI ≥27.5 kg/m2)undergoing LRYGB were retrospectively analyzed.Preoperative VFA and related body composition parameters were measured using a bioelectrical impedance ana-lyzer(InBody 230).Operative time and perioperative complications were recorded.Fifteen non-obese T2DM patients(BMI＜27.5 kg/m2)served as controls.Spearman correlation analysis was performed to assess the relationship between VFA and operative time.Multivariate linear regression was used to identify independent influencing factors.Receiver oper-ating characteristic(ROC)curves were constructed to evaluate the predictive performance of VFA alone and in combina-tion with sex.Results VFA was significantly higher in the obese group than in the control group(P＜0.05),and female patients had a higher VFA than male patients[(131.07±34.44)cm2 vs.(112.79±15.44)cm2,P=0.029].Opera-tive time was positively correlated with VFA(r=0.443,P＜0.01).Multivariate linear regression analysis identified VFA as an independent predictor of operative time(P＜0.05).The area under the ROC curve(AUC)for VFA alone in pre-dicting prolonged operative time was 0.689(95％CI:0.538-0.840),with a sensitivity of 91.67％and a specificity of 39.13％.When combined with sex,the AUC increased to 0.808(95％CI:0.684-0.932),with a sensitivity of 66.67％and a specificity of 82.67％.Conclusion Visceral fat area is an independent predictor of operative time in LRYGB.Combining VFA with sex significantly improves predictive accuracy.Incorporating preoperative VFA assessment,particularly in female patients,into risk stratification may facilitate better surgical resource allocation and optimization of clinical pathways.关键词
内脏脂肪面积/腹腔镜Roux-en-Y胃旁路术/手术时长/预测价值/2型糖尿病/肥胖症Key words
visceral fat area/laparoscopic Roux-en-Y gastric bypass/operation time/predictive value/type 2 diabetes/obesity分类
医药卫生引用本文复制引用
曾松华,黄红艳,汪蕾,吴慧,吴良平..内脏脂肪面积联合性别预测腹腔镜胃旁路手术时长的临床价值[J].广东医学,2026,47(1):29-33,5.基金项目
广东省医学科学技术研究基金(C2025012) （C2025012）
