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The External Validation of a Multivariable Prediction Model for Recurrent Pelvic Organ Prolapse After Native Tissue
Imke Kessels1,2, Sander van Kuijk3, Tineke Vergeldt4
1Department of Obstetrics and Gynecology, Zuyderland Medical Center, Henri Dunantstraat 5, 6419 PC Heerlen, The Netherlands.
Journal of Clinical Medicine
|January 25, 2025
Summary
This study externally validated a cystocele recurrence prediction model, finding moderate performance for anatomical recurrence but poor performance for composite or subjective outcomes. New models are needed for non-anatomical recurrence prediction in urogynecology.
Area of Science:
- Urogynecology and Pelvic Floor Reconstructive Surgery
- Surgical Outcomes and Prediction Modeling
- Pelvic Organ Prolapse (POP) Research
Background:
- A 2016 prediction model for anatomical cystocele recurrence after native tissue repair was developed for patient counseling.
- External validation is crucial before clinical implementation in urogynecological practice.
- The study aimed to assess the external validity of the existing model and its performance for composite/subjective POP recurrence.
Purpose of the Study:
- To externally validate a previously developed prediction model for anatomical cystocele recurrence.
- To evaluate the model's performance for composite and subjective pelvic organ prolapse (POP) recurrence.
- To investigate the alignment of POP recurrence risk factors with the original model's population.
Main Methods:
- Prospective multicenter cohort study including 246 patients undergoing primary anterior colporrhaphy for POPQ stage ≥ 2 cystocele.
- Data collection included questionnaires, preoperative pelvic floor ultrasound, and medical records (POPQ stage, history).
- Follow-up assessed anatomical, subjective, and composite cystocele recurrence.
Main Results:
- Anatomical cystocele recurrence was observed in 49.5% of patients.
- The prediction model demonstrated moderate performance for anatomical recurrence (AUC 65.5%).
- The model showed poor performance for composite (AUC 55.8%) and subjective (AUC 55.1%) recurrence outcomes.
Conclusions:
- The external validation indicates moderate predictive accuracy for anatomical cystocele recurrence.
- The existing model is unsuitable for predicting composite or subjective POP recurrence due to poor performance.
- Development of novel prediction models is necessary for composite and subjective POP recurrence.
