This study evaluates the clinical implementation of intra-operative topographic classification system for PAS. In addition to a standard of care risk stratification prenatal ultrasound for patients with a risk of PAS, this study adds an additional intraoperative surgical staging protocol to validate the classification system, improve surgical approach, and significantly clinical outcomes of pregnant people with an a prior risk of PAS. The study will involve pregnant patients with PAS risk factor, include data collection spanning prenatal assessment, intraoperative classification, surgical technique implementation and postoperative analysis. The anticipated study duration is approximately 36-48 months.
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Ultrasound assessment
Timeframe: 0-30 days prior to planned surgery
Surgical Procedure and Classification
Timeframe: At time of surgery
Quantification of Blood Loss
Timeframe: Documented throughout surgery and at the completion of the procedure
Gross Pathological Analysis of Resected Tissues
Timeframe: Within 2 hours post surgery
Adverse Events
Timeframe: Up to 12 months post surgery