Safety techniques regarding morcellation
Enclosed vaginal morcellation for enlarged uteri
By Ceana H. Nezhat, M.D.
Removal of large uteri via minimally invasive surgery poses challenges to gynecologic surgeons. Limitations on the use of intraperitoneal electromechanical morcellation are a step forward in terms of protecting patients from undue harm, but we also must acknowledge that minimally invasive surgery has been shown to be superior to laparotomy in the majority of cases.
While safer ways to extract large specimens without risk of spreading both benign and malignant tissue are being studied and developed, gynecologic surgeons need to find alternative minimally invasive approaches for removing large specimens.
Minimally invasive approaches to extirpate uteri and myomas have been described prior to the advent of electromechanical morcellation. A natural orifice such as the vagina for gynecologic procedures is a clear choice for removing specimens. Laparoscopic-assisted myomectomy is a combination of laparoscopy and minilaparotomy for tissue extraction (JSLS 2001;5:299-303). Another alternative is extracting myoma and other tissues through a posterior colpotomy. Rates of dyspareunia and adhesions in the cul-de-sac after tissue extraction through a colpotomy are low (J. Reprod. Med. 1993;38:534-6).
Vaginal hysterectomy was chronicled and performed by the Greek physician Soranus of Ephesus in 120 A.D. (Acta Chir. Iugosl. 2011:58:9-14), and it is still the preferred route of hysterectomy when it can be performed. Large uteri can be transvaginally morcellated and vaginally extracted; however, this technique still poses the risk, although low, of spilling fragments of uterine tissue in the abdomen.
By combining total laparoscopic hysterectomy and vaginal morcellation of enlarged uteri within an enclosed specimen bag, the risk of spilling uterine fragments is reduced, in addition to avoiding potential visceral and vascular complications associated with intraperitoneal electromechanical morcellation.
Enclosed vaginal morcellation is the technique of placing the enlarged hysterectomy specimen in an endoscopic specimen retrieval bag and then transvaginally morcellating the tissue.
