Topical anesthesia for gynecologic procedures

Abstract

Topical benzocaine 20% gel was evaluated for its ability to reduce pain associated with several common gynecologic procedures. In the first phase of the investigation, designed to determine the efficacy of the gel, 40 women received it before one or more of five procedures (cervical biopsy, intrauterine device insertion, endocervical curettage, paracervical block, and tenaculum placement). These women reported significantly less pain than 42 control subjects (P less than .05 to P less than .0005). In the second phase of the study, a placebo gel was compared in a blind fashion with 20% benzocaine gel in 63 study subjects and 64 control women undergoing procedures similar to those in the first part of the study. The modal pain rating by both physician and patient was "none" in the study group for all procedures except endocervical curettage, for which the rating was "mild"; ratings were "mild" or "moderate" in the control group. Compliance with respect to keeping follow-up visits was significantly greater in the study group. These data indicate that benzocaine 20% significantly reduces the pain experienced by patients after many gynecologic procedures performed vaginally.