Randomized comparative trial of cervical block protocols for pain management during hysteroscopic removal of polyps and myomas

Abstract

Andrea S Lukes,1 Kelly H Roy,2 James B Presthus,3 Michael P Diamond,4 Jay M Berman,4 Kenneth A Konsker5 1Carolina Women’s Research and Wellness Center, Durham, NC, USA; 2Phoenix Gynecology Consultants, Phoenix, AZ, USA; 3Minnesota Gynecology and Surgery, Edina, MN, USA; 4Wayne State University, Detroit, MI, USA; 5Florida Woman Care, Boca Raton, FL, USA Purpose: To evaluate the efficacy of two cervical block protocols for pain management during hysteroscopic removal of intrauterine polyps and myomas using the MyoSure® device. Patients and methods: This was a randomized, comparative treatment trial conducted by five private Obstetrics and Gynecology practices in the USA. Forty premenopausal women aged 18 years and older were randomized to receive either a combination para/intracervical block protocol of 37 cc local anesthetic administered at six injections sites in association with the application of topic 1% lidocaine gel, or an intracervical block protocol of 22 cc local anesthetic administered at three injections sites without topical anesthetic, for pain management during hysteroscopic removal of intrauterine polyps and/or a single type 0 or type 1 submucosal myoma ≤3 cm. The main outcomes were a composite measure of procedure-related pain and pain during the postoperative recovery period, assessed by the Wong-Baker Faces Rating Scale (0= no pain to 10= maximum pain). The lesion characteristics, procedure time, and adverse events were summarized. Results: A total of 17 polyps and eight myomas were removed in the para/intracervical block group, with diameters of 1.3±0.5 cm and 1.8±0.8 cm, respectively. In the intracervical block group, 25 polyps with a mean diameter of 1.2±0.7 cm and 7 myomas with a mean dia-meter of 1.9±0.9 cm were removed. The mean tissue resection time was 1.2±2.0 minutes and 1.2±1.4 minutes for the para/intracervical and intracervical block groups, respectively. The mean composite procedure-related pain score was low for both cervical block protocols, 1.3±1.4 in the para/intracervical block group vs 2.1±1.5 in the intracervical block group. During the postoperative recovery period, the mean pain scores were 0.3±0.7 vs 1.2±1.7 for the para/intracervical and intracervical block groups, respectively. There were no serious adverse events. Conclusion: The MyoSure procedure for removal of polyps and myomas was well tolerated, with low pain scores reported for both the para/intracervical and intracervical block protocols. Keywords: MyoSure, hysteroscopic morcellation, polypectomy, myomectomy