Effectiveness of ovarian suspension in preventing postoperative ovarian adhesions in patients with severe pelvic endometriosis—a case-control study

Abstract

Abstract Background Endometriosis can exert obvious negative effects on women’s quality of life. Excisional surgery is among the most effective treatments for severe pelvic endometriosis. The prevalence of severe pelvic adhesions following a laparoscopic examination of severe endometriosis varies between 50 and 100%. Temporary intraoperative ovarian suspension is a method for the reduction of adhesions is in the treatment of severe pelvic endometriosis. Given the importance and the prevalence of endometriosis and its complications, we conducted the present study to determine more effective adhesion-reducing methods with a view to improving the quality of the treatments provided. Methods The present prospective double-blind randomized clinical trial was conducted on 50 women of reproductive age (≥ 19 years) diagnosed with severe pelvic endometriosis on transvaginal ultrasound scans and vaginal examinations at Yas Hospital between 2014 and 2017. Women with severe endometriosis (stage III, stage IV, and deep infiltrating endometriosis) requiring an extensive bilateral dissection of the pelvic walls and the rectovaginal space, with preserved uterus and ovaries, were included in the study. The preoperative severity of ovarian adhesions was assessed in terms of ovarian motility, measured through a combination of gentle pressures applied with the vaginal probe and abdominal pressures applied with the examiner’s free hand. A table of random numbers was used to choose which ovary to suspend. The entire study population received standard general anesthesia. In the laparoscopic examination of the cases with severe endometriosis, both ovaries were routinely suspended to the anterior abdominal wall with PROLENE sutures. At the end of the surgery, one of the ovaries was kept suspended for 7 days, whereas the other ovarian suspension suture was cut. At 3 months postoperatively, all the patients underwent ultrasound scans for the assessment of ovarian motility and adhesions. The severity of pelvic pain was defined according to a visual analog score. After surgery, infertile women were followed for 2-4 years, and were contacted regarding the infertility treatment. Chemical and clinical pregnancy rates was compered between the two groups. Results Three months after laparoscopy, the adhesions were mild in 41 (82%) patients and moderate in 9 (18%) on the suspended side, and mild in 12 (24%) patients and moderate in 38 (76%) on the control side (P < 0.001). The mean dysmenorrhea score was 6.8 ± 1.5 before surgery and 4.5 ± 1.4 after surgery (P < 0.001). The chemical pregnancy rate and clinical pregnancy rate were not different in the suspended and control groups (P = 0. 62, P = 0.64). Conclusions The reduction in adhesions via ovarian suspension surgery promises reductions in the complications of endometriosis.