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Clinical Trial
. 2007 Jun;132(2):154-8.
doi: 10.1016/j.ejogrb.2006.07.013. Epub 2006 Aug 17.

The value of ultrasound visualization of the ovaries during the routine 11-14 weeks nuchal translucency scan

Joseph Yazbek  1 , Rehan Salim, Brigitte Woelfer, Naaila Aslam, Christopher T Lee, Davor Jurkovic
Affiliations
Clinical Trial

The value of ultrasound visualization of the ovaries during the routine 11-14 weeks nuchal translucency scan

Joseph Yazbek et al. Eur J Obstet Gynecol Reprod Biol. 2007 Jun.

Abstract

Objective: To investigate the feasibility and possible value of routine screening for ovarian pathology in asymptomatic pregnant women at 11-14 weeks' gestation.

Study design: A policy of routine ovarian visualization was implemented in 2925 pregnant women attending for a nuchal translucency scan at 11-14 weeks' gestation. In all cases, an attempt was made to visualize the ovaries on transabdominal ultrasound scan. Simple cysts were defined as unilocular cysts with regular internal walls and no solid components, which contained clear anechoic fluid. All other cysts were classified as complex. Simple cysts<5 cm in diameter were all managed expectantly with no further follow-up. All women with large simple cysts>or=5 cm in diameter or complex cysts had further detailed follow-up scans. Surgical intervention during pregnancy was offered to women with clinical symptoms suggestive of cyst complications or those with ultrasound features suggestive of malignancy. All other women were managed expectantly until after delivery.

Results: Adnexal cysts were found in 728/2925 (24.9%) pregnant women. 400/728 (55%) women had simple cysts<5 cm in diameter, whilst 328/728 (45%) women had large simple or complex cysts requiring follow-up. On subsequent scans, cysts resolved spontaneously in 278/328 (84.8%) women. A total of 33/728 (4.5%) women with ultrasound evidence of adnexal cyst underwent surgery. In one woman the intervention was required because of pain, one woman had suspected cancer on ultrasound scan and the remaining 31/33 (94%) of operations were performed at patients' requests. All the cysts were found to be benign on histological examination. The overall intervention rate was 1.1/100 screened pregnant women or 4.5/100 cysts detected on ultrasound scan.

Conclusion: Asymptomatic adnexal cysts detected in the first trimester of pregnancy are unlikely to be malignant or to cause clinical symptoms antenatally. The policy of routine ultrasound visualization of the ovaries in pregnancy cannot be justified.

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