Abstract
systolic velocity (Vmax) of the RA and DA using color Doppler. Measurements were made five times from the 20th to the 40th week, in both the control and the renal disease group. Results: In the fetuses with PCK (Potter’s syndrome) that died postpartum from non-functional kidneys, the Vmax of the RA and DA in the 35th week were 13 cm/sec and 25.4 cm/sec, respectively. In the fetus with PCK (Trisomy 9) that died due to nonfunctional kidneys in the 34th week, the values were 13.3 cm/sec and 29.6 cm/sec, respectively. These values were well below those of the normal group: more than 1.5 SD below the mean. In two fetuses from the nine with hydronephrosis that had a unilateral nonfunctional kidney, the RA did not clearly show identifiable blood flow. Conclusions: The Vmax of the RA and DA in fetuses with renal disease correlates with fetal kidney function, particularly the RA Vmax. Vmax of 1.5 SD below the mean should be the lower normal limit.
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