Frequency of nonindicated BSO at the time of hysterectomy in pre- and perimenopausal women
Wong J, Murji A, Sunderji Z, et al. Unnecessary bilateral salpingo-oophorectomy at the time of hysterectomy and potential for ovarian preservation. Menopause. 2020;28:8-11. doi: 10.1097/GME.0000000000001652.
While prevention of ovarian cancer is an important benefit of bilateral salpingo-oophorectomy (BSO), performing a BSO at the time of hysterectomy in pre- or perimenopausal patients not only will induce surgical menopause but also is associated with significantly increased overall mortality and an increased risk of mortality due to cardiovascular disease in patients younger than age 45.5,6 Earlier BSO also has been associated with diabetes, accelerated bone density loss, sexual dysfunction, mood disorders, and decreased cognitive function.7
BSO at hysterectomy: How many procedures are not indicated?
To evaluate the prevalence and predictors of unnecessary BSO at the time of hysterectomy, Wong and colleagues conducted a multicenter retrospective review of hysterectomy procedures completed at 6 Canadian hospitals.8 Criteria for unnecessary BSO included age younger than 51 years; benign preoperative diagnosis (other than endometriosis, premenstrual dysphoric disorder, and gender dysphoria); and absence of endometriosis and pelvic adhesions.
A total of 2,656 hysterectomies were performed by 75 surgeons (28 fellowship trained and 47 generalists) across 3 community and 3 tertiary care hospitals between 2016 and 2018. At the time of hysterectomy, 749 patients (28%) underwent BSO. Of these, 509 women (68%) had at least 1 indication for concurrent BSO based on preoperative diagnosis.
Key study findings. Concurrent BSO procedures performed at academic hospitals were more likely to have a preoperative indication compared with BSO performed at community sites (70% vs 63%; OR, 1.42; 95% CI, 1.02–1.97; P = .04). BSO was more likely to be indicated when performed by fellowship-trained surgeons compared with surgeries performed by generalist surgeons (75% vs 63%; OR, 1.76; 95% CI, 1.26–2.44, P = .001). BSO procedures performed with vaginal hysterectomy were less likely to be indicated (3 of 20, 15%) when compared with open hysterectomy (74 of 154, 48%) and laparoscopic hysterectomy (432 of 575, 75%).
Of the patients who lacked a preoperative indication for concomitant BSO, 105 of 239 (43.9%) were younger than age 51. Overall, 8% (59 of 749) of patients in the study cohort had an unnecessary BSO based on a combination of preoperative diagnosis, age younger than age 51, and intraoperative factors including absence of endometriosis and adhesions.
WHAT THIS EVIDENCE MEANS FOR PRACTICE
The retrospective study by Wong and colleagues provides the first assessment of Canadian practice patterns with respect to concurrent BSO at the time of hysterectomy. The authors found that, overall, more than two-thirds of BSO procedures were indicated. However, the proportion of BSO that was indicated was higher in teaching hospitals and in surgeries performed by fellowship-trained gynecologists. These important observations underscore the role of clinician education in reducing nonindicated BSO in pre- and perimenopausal women undergoing hysterectomy for benign disease.
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