[Ovarian vein syndrome during pregnancy--diagnostic and treatment]

To access the presence of Ovarian Vein Syndrome in second trimester pregnancy and safety and effectiveness of stents insertion in symptomatic hydronephrosis during pregnancy.

From 01.01.2007 to 30.12.2011, 66 women were hospitalized in the Urology Clinic at the University Hospital "St. George" Plovdiv. Sixty six patients presented acute pyelonephritis and painful hydronephrosis. 61 cases were with right hydronephrosis (92%), 2 (3%) on the left side and 3 (5%) with hydronephrosis in both sides. On the Ultrasound Doppler investigation, 61 cases with right hydronephrosis were with varicose right ovarian vein anomalies, which cause unilateral ureteral obstructions. Using ultrasound guidance, 66 retrograde ureteral stents were successfully placed under local anesthesia.

In 66 patients with urinary infection, we observed remission of fever during the first 24-48 hours after the placement of the ureteral stents.

Ovarian vein syndrome is a ureteral dilatation secondary to ovarian vein dilatation. The majority of cases are diagnosed during pregnancy, with a 90% predominance on the right side. Retrograde ureteral stenting is an effective, simple and safe method in treating symptomatic hydronephrosis during pregnancy.