Medical Faculty Journal of

Guilan University of Medical Sciences

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The Survey of Fetal Genitourinary 

Abnormalities

Asgari S.A., Meilanei F., Mansour ghanaei M.

ABSTRACT :

Congenital genitourinary tract abnormalities occur in 0.1% to 1% of all neonates and are a major cause of prenatal mortality and morbidity.

Nowadays, prenatal ultrasonography can detect most malformations and anomalies. In this study the genitourinary tract abnormalities of the Fetuses of the pregnant women by prenatal ultrasonography and causes of these abnormalities were evaluated.

7,200 pregnant women in 3rd trimester who need specific ultrasonographic evaluation was selected. The fetuses of these pregnant women evaluated for genitourinary abnormalities and causes of these anomalies.

66 (0.9%) of cases had genitourinary anomalies. The male to female ratio was 1.5/1. Hydronephrosis was the most common abnormality detected and accounts for 59 (89.3%) of all prenatal detected lesions. 21 (35.5%) of these had bilateral hydronephrosis. 

In postnatal evaluation, 42 (63.7%) of prenatal detected hydronephrosis was caused by ureteropelvic Junction obstruction then vesicoureteral rellux 9 (10.6%), posterior urethral valve 4 (6%), ureterovesical Junction obstruction 4 (6%).

Oligohydroaminous was detected in 5 of patients (7.6%). Upper urinary tract dilatation was the most common genitourinary tract abnormalities and also ureteropelvic junction obstruction was the most common causes of Hydronephrosis. The male to female ratio of UPJO was almost equal (1.1/1)

Key words: Abnormalities/ Hydronophrosis/ Prenatal Diagnosis/ Urinary Tract

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 Last Update :  27 November 2003