title: Contact Nd:YAG laser and CO2 laser for cylindrical excision of the cervix. A comparative study.
abstract: An excess of blood loss and persistence of intraepithelial neoplasia after cervical conization occur with some frequency. Contact Nd:YAG laser conical excision of the uterine cervix is a new technique designed to remedy those problems. In this study, 36 women with histologically confirmed cervical intraepithelial neoplasia were treated with cylindrical excision of the uterine cervix with a contact Nd:YAG laser. The results were compared with those in 30 women who had similar lesions and were treated with the CO2 laser. Use of the Nd:YAG laser resulted in less intraoperative blood loss (mean +/- SD, 3.12 +/- 0.28 vs. 30.3 +/- 2.12 mL for the CO2 laser, P less than .01) and less postoperative blood loss. The volume of early bleeding was 6.23 +/- 1.21 vs. 20.13 +/- 2.24 mL for the CO2 laser (P less than .01), and that of late bleeding was 5.22 +/- 2.21 vs. 31.24 +/- 0.05 mL for the CO2 laser (P less than .01). The operative time was similarly less for the contact Nd:YAG laser (6.2 +/- 2.2 vs. 20.2 +/- 1.2 minutes for the CO2 laser, P less than .01). The dimensions of the excised specimens were similar. These findings suggest that the contact Nd:YAG laser offers distinct advantages over the CO2 laser in performing cylindrical excision of the cervix.
authors.affiliation: Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Taipei, Taiwan.
authors.forename: A C
authors.initials: AC
authors.lastname: Wang
authors.forename: S
authors.initials: S
authors.lastname: Hsueh
mesh_terms: D016063:Blood Loss, Surgical; D002278:Carcinoma in Situ / Q000601:surgery*; D005260:Female; D006801:Humans; D053685:Laser Therapy / Q000295:instrumentation*; D002583:Uterine Cervical Neoplasms / Q000601:surgery*