Diagnostic Value of a Multiparametric Model Based on Pelvic Floor Ultrasound for Postpartum Stress Urinary Incontinence

• Bo Hu ^[1] ; Lei Dong ^[1] ; Linju Zhou ^[2] ; Xiaofang Xiao ^[1] ; Yuqing Zhou ^[1] ; Lili Shi ^[1]
  1. [1] Department of Ultrasound, Ganzhou Maternal and Child Health Hospital, 341000 Ganzhou, Jiangxi, China
  2. [2] Women’s Health Department, Ganzhou Maternal and Child Health Hospital, 341000 Ganzhou, Jiangxi, China
• Localización: Archivos españoles de urología, ISSN 0004-0614, Tomo 79, Nº. 2, 2026, págs. 344-351
• Idioma: inglés
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• Resumen

  • Background: To explore the diagnostic value of a multiparametric model based on pelvic floor ultrasound for postpartum stress urinary incontinence (SUI).

    Methods: Between November 2023 and December 2024, 102 postpartum SUI patients (SUI group) and 96 healthy controls (control group) were enrolled. After 1:1 propensity score matching (caliper width = 0.02), 60 cases per group were analysed. Pelvic floor ultrasound was used to measure posterior urethrovesical angle at rest (Ar)/angle during Valsalva (As), urethral rotation angle (URA), bladder neck mobility (BNM), and bladder neck funnel formation. A multiparametric model was constructed using logistic regression and evaluated using receiver operating characteristic (ROC) curves.

    Results: The SUI group exhibited significantly higher URA, BNM, and bladder neck funnel formation rates than the control group (all p < 0.05). These three parameters were identified as independent SUI predictors with no multicollinearity (variance inflation factor (VIF) < 5). The multiparametric model achieved an area under the ROC curve of 0.863 (95% confidence interval (CI): 0.798–0.927), significantly higher than any single parameter (p < 0.05), with a sensitivity of 78.50% and a specificity of 89.80% at the optimal cut-off value.

    Conclusions: The multiparametric pelvic floor ultrasound model, which integrated URA, BNM, and bladder neck funnel formation, demonstrated good diagnostic performance for postpartum SUI. This non-invasive tool, complemented by a constructed nomogram, provides a methodological basis for early identification of postpartum SUI in clinical practice, pending further multicentre validation.