Researchers from the Department of Obstetrics and Gynecology at E. Wolfson Medical Center in Tel Aviv compared the prevalence and recurrence of adnexal torsion between pregnant and non-pregnant women receiving fertility treatments.

A total of 252 women were recruited for the study. Of the women, 64 were pregnant and 198 were not pregnant. The gestational age at the time of treatment for adnexal torsion was about 12 weeks. The pregnant group reported 36 bouts of adnexal torsion (56%) and only 14 bouts (7%) in the group of non-pregnant women. Recurrence occurred more often in pregnant women and women with multicystic ovaries that were enlarged. Surgical treatment resulted was shorter by 15 minutes in the pregnant group. Doctors were also able to preserve tissue in pregnant women more often.

Conceiving after fertility treatment increases the risk of adnexal torsion, especially in patients with multicystic ovaries.

Source: Ginath S, Shalev A, Keidar R, Kerner R, Condrea A, Golan A, Sagiv R. Differences between adnexal torsion in pregnant and nonpregnant women. J Minim Invasive Gynecol 2012 Nov; 19(6):708-14.