Abstract

To determine the efficacy and safety of ultrasound (US)-guided sclerotherapy for the treatment of ovarian endometrioma through a systematic review and meta-analysis. MEDLINE and EMBASE databases were searched for studies reporting outcomes in patients with endometrioma who were treated with US-guided sclerotherapy. Meta-analyses of recurrence, pain resolution, pregnancy, technical success, and complication rates were analyzed. Subgroup analyses were conducted regarding the indwelling time of sclerotherapy (≤ 10min vs > 10min). Twenty-eight studies (1301 patients) were included. The pooled technical efficacy was 98.3%. The pooled estimates of recurrence, pain resolution, and pregnancy rate were 13.8%, 85.9%, and 37.6%, respectively. The pooled major complication rate was 1.7%. A sclerotherapy time > 10min had a lower pooled recurrence rate than a time ≤ 10min (11.2% vs 20.9%; p = 0.106). Direct comparisons showed that the recurrence rate was significantly lower with sclerotherapy > 10min than with sclerotherapy ≤ 10min (OR, 0.2; p = 0.015). Regarding pregnancy rates, sclerotherapy of > 10min showed no significant difference compared with sclerotherapy of ≤ 10min (35.9% vs 38.8%; p = 0.664). Direct comparisons with surgery showed that sclerotherapy increased the pregnancy rate compared with surgery (OR, 2.0; p = 0.042). There was no significant difference in AMH level before and after sclerotherapy (p = 0.951). There was no significant difference in major complication rates between sclerotherapy > 10min and ≤ 10min (p = 0.837). US-guided sclerotherapy seems to be an effective and safe therapeutic option regarding recurrence, pain resolution, and pregnancy for patients with ovarian endometrioma. • US-guided sclerotherapy seems to be an effective and safe therapeutic option regarding recurrence, pain resolution, and pregnancy for patients with ovarian endometrioma. • Sclerotherapy of more than 10min had a lower recurrence rate than sclerotherapy less than or equal to 10min. There was no significant difference in major complication rates between sclerotherapy of > 10min and ≤ 10min. • Future randomized controlled trials are warranted to compare the outcomes of US-guided sclerotherapy with surgery.

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