Hysteroscopic local anaesthetic intrauterine cornual ‘focal local’ block before endometrial ablation with direct cervical block in an outpatient setting: a feasibility study

Vinod Kumar, Janesh Gupta
In: European Journal of Obstetrics & Gynecology and Reproductive Biology · 2013 · vol. 170(1) , pp. 222–224 · doi:10.1016/j.ejogrb.2013.06.010 · PMID:23838592 · W1981313751
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This feasibility study investigated the safety and efficacy of a hysteroscopic local anesthetic intrauterine cornual block combined with a direct cervical block for outpatient endometrial ablation.

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Abstract

ObjectiveTo evaluate the safety, feasibility and efficacy of a hysteroscopic local anaesthetic intrauterine cornual block (ICOB) on women's perception of pain during outpatient Thermachoice endometrial ablation (TEA).Study designPre-menopausal women with heavy menstrual bleeding undergoing TEA were included in the study. The intervention used, ICOB, was a hysteroscopic injection of local anaesthetic into the myometrium just medial to each tubal ostium. The women also had a traditional direct cervical block (DCB). We measured the acceptability of ICOB and the pain score (visual analogue score scale) immediately after the procedure.ResultsWe treated 30 patients (mean age 41 years, SD 6; BMI 29±7) between January 2012 and December 2012. All patients had a successful ICOB block and found TEA with ICOB acceptable. The mean VAS score was 3.5±2.7, which was two points lower compared to our earlier prospective cohort of patients undergoing TEA with only a DCB (mean 5.8±2.7, n=102). No serious complications occurred during the procedure or postoperatively. Three patients experienced a vasovagal response which resolved spontaneously.ConclusionICOB with DCB is a safe, feasible and efficacious method of pain control during TEA. There is however a need to evaluate efficacy of ICOB in a randomised placebo controlled trial.

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