Mahony B S, Callen P W, Filly R A
Radiology. 1985 Oct;157(1):221-4. doi: 10.1148/radiology.157.1.3898218.
To further elucidate antenatal sonographic features of fetal urethral obstruction and attempt to determine which features might predict subsequent outcome, 40 in utero cases were reviewed. All fetuses had dilated urinary bladders and/or thickened bladder walls; in 47.5% of fetuses a dilated posterior urethra was seen. Only 15 fetuses (37.5%) survived the neonatal period. Survivors tended to present later in gestation than nonsurvivors. Poor prognostic indicators included oligohydramnios (20 of 21 subsequently died), absence of caliectasis (20 of 24 died), a large amount of urine ascites (five of six died), and dystrophic bladder wall or peritoneal calcification (five of five subsequently died). Conversely, 14 of 19 (74%) fetuses without definite oligohydramnios survived the neonatal period.
为进一步阐明胎儿尿道梗阻的产前超声特征，并试图确定哪些特征可能预测后续结局，对40例宫内病例进行了回顾性分析。所有胎儿均有膀胱扩张和/或膀胱壁增厚；47.5%的胎儿可见后尿道扩张。只有15例胎儿（37.5%）存活至新生儿期。存活者的孕周往往比非存活者晚。预后不良指标包括羊水过少（21例中有20例随后死亡）、肾盂积水缺如（24例中有20例死亡）、大量尿腹水（6例中有5例死亡）以及膀胱壁营养不良或腹膜钙化（5例均随后死亡）。相反，19例无明确羊水过少的胎儿中有14例（74%）存活至新生儿期。
