Barzilai M
Ultrasound Unit, Carmel Medical Center, Haifa.
Harefuah. 1995 Jan 15;128(2):78-80, 128.
The diagnosis of fetal hydronephrosis requires that there be ultrasound follow-up during the neonatal period. In most cases the dilatation of the renal collecting system regresses and no further diagnostic work-up is needed. A persistently dilated collecting system might be the result of obstruction, in which case surgical intervention should be considered. The ultrasound examination is the key factor in deciding whether to proceed with invasive procedures (cystography, intravenous pyelography or renal isotopic scan) or to stop urological investigation. The case presented emphasizes the importance of the timing of the first ultrasonographic study after birth. Ultrasound examination performed within the first 48 hours can lead to false negative results.
胎儿肾积水的诊断需要在新生儿期进行超声随访。在大多数情况下，肾集合系统的扩张会消退，无需进一步的诊断检查。集合系统持续扩张可能是梗阻所致，这种情况下应考虑手术干预。超声检查是决定是否进行侵入性检查（膀胱造影、静脉肾盂造影或肾脏同位素扫描）或停止泌尿外科检查的关键因素。所呈现的病例强调了出生后首次超声检查时间的重要性。出生后48小时内进行的超声检查可能会导致假阴性结果。
