The predictive value of Mayo adhesion probability score for intraoperative bleeding in microchannel-percutaneous nephrolithotomy
10.12483/j.issn.1009-8291.2026.04.003
- VernacularTitle:梅奥粘连概率评分对微通道经皮肾镜碎石术中出血的预测价值
- Author:
Shengjun XIA
1
;
Xiaodong GE
1
;
Fukun WEI
1
;
Hao SHI
1
Author Information
1. Department of Urology, Yancheng Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Yancheng 224002, China
- Publication Type:Journal Article
- Keywords:
Mayo adhesion probability score;
percutaneous nephrolithotomy;
intraoperative bleeding;
perinephric fat;
renal calculi
- From:
Journal of Modern Urology
2026;31(4):311-315
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the predictive value of Mayo adhesion probability(MAP)score for intraoperative bleeding during microchannel percutaneous nephrolithotomy(PCNL), so as to provide reference for optimizing surgical decisions.Methods A retrospective analysis was conducted on the clinical data of 86 patients who underwent microchannel PCNL at our hospital during Jan.2018 and Jul. 2025.Patients were divided into two groups based on preoperative CT-derived MAP scores:MAP score＜3 group(n=45)and MAP score≥3 group(n=41).Baseline characteristics, surgical parameters and outcome measures were compared between the two groups.Univariate and multivariate logistic regression analyses were performed to identify risk factors for intraoperative bleeding(defined as a postoperative hemoglobin decrease of ≥20 g/L). Results The incidence of intraoperative bleeding was significantly higher in the MAP score≥3 group than in the MAP score＜3 group(43.9% vs.20.0%, P=0.017).Multivariate analysis identified MAP score ≥3(OR=3.045, 95%CI:1.125-9.547, P=0.019), use of anticoagulant medication(OR=3.016, 95%CI:1.251-9.257, P=0.020), establishment of multiple tracts(OR=5.445, 95%CI:1.798-17.578, P=0.003), and operation time ≥90 minutes(OR=5.697, 95%CI:1.890-13.632, P=0.001)as risk factors for intraoperative bleeding.The area under the curve for the MAP score in predicting intraoperative bleeding was 0.704.Conclusion The MAP score is an independent risk factor for intraoperative bleeding during microchannel PCNL.Preoperative assessment can help identify high-risk patients and provide a basis for optimizing surgical decision-making.
