King's Mill anterior-posterior and transverse versus paracervical block in operative outpatient hysteroscopy: a randomised trial.
J Obstet GynaecolAug 31, 2026 (epub)
Clinical ResearchObstetrics & Gynecology
Raphael Laiyemo, Mohamed Saleh
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In 30 seconds
This randomized controlled trial compared the King's Mill Anterior-Posterior and Transverse (KAPT) block with the paracervical block (PCB) for pain management in 48 women undergoing outpatient hysteroscopy. The KAPT block resulted in significantly lower median intra-procedural pain (VAS 1 vs 2, p=0.040) and post-procedural pain (VAS 0 vs 2, p=0.011) compared to PCB, indicating its potential as a superior alternative.
Key findings
- Median intra-procedural VAS was 1 with KAPT versus 2 with PCB (p=0.040).
- At 10 minutes post-procedure, median VAS was 0 for KAPT compared to 2 for PCB (p=0.011).
- Satisfaction was 100% in both groups, with 100% willingness to recommend KAPT.
- No serious adverse events occurred in either group.
Why it matters
Effective pain management during outpatient hysteroscopy is crucial for patient comfort and procedure success. The KAPT block may offer a more effective alternative to the commonly used PCB, potentially improving patient experiences and outcomes.