High MIH case volume may up risk for adverse events in women with large uteri

ORLANDO – High case volume for surgeons performing minimally invasive hysterectomies in women with large uteri is associated with an increased rate of perioperative adverse events – but also with a decreased rate of conversion to laparotomy – according to a review of 763 procedures.

The minimally invasive hysterectomy (MIH) procedures in the study were performed by 66 surgeons and included 416 total laparoscopic hysterectomies, 196 robotic-assisted laparoscopic hysterectomies, 90 total vaginal hysterectomies, and 61 laparoscopic-assisted vaginal hysterectomies, Carol E. Bretschneider, MD, reported at the annual scientific meeting of the Society of Gynecologic Surgeons.

The mean monthly case volume was 16.4 and mean MIH volume was 23, said Dr. Bretschneider, a fellow at the Cleveland Clinic.

“The rate of postoperative adverse events was 17.8%, the rate of intraoperative adverse events was 4.2%, and the rate of conversion from a minimally invasive approach to a laparotomy was 5.5%,” she said, explaining that adverse events were defined as those greater than grade 2 on the Clavien-Dindo classification scale. “No differences were appreciated across routes [of MIH] in terms of perioperative adverse events or conversion to laparotomy,” she noted.