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Posterior urethral obstruction. Prenatal sonographic findings and clinical outcome in fourteen cases.
Author(s) -
Hayden S A,
Russ P D,
Pretorius D H,
Manco-Johnson M L,
Clewell W H
Publication year - 1988
Publication title -
journal of ultrasound in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 91
eISSN - 1550-9613
pISSN - 0278-4297
DOI - 10.7863/jum.1988.7.7.371
Subject(s) - medicine , pulmonary hypoplasia , autopsy , urethra , hypoplasia , hydronephrosis , fetus , echogenicity , prenatal diagnosis , megaureter , pregnancy , surgery , posterior urethral valve , obstetrics , urinary system , anatomy , ultrasonography , pathology , ureter , genetics , biology
Fourteen cases of fetal urethral obstruction were reviewed retrospectively. The purpose of this study was to emphasize the following: 1) prenatal sonographic findings: 2) clinical outcome: and 3) associated congenital anomalies. Decreased amniotic fluid volume complicated 12 pregnancies (86%). A dilated posterior urethra was identified in nine fetuses (64%) and an enlarged bladder in 13 (93%). Evaluation of the fetal kidneys revealed hydronephrosis in 81%, increased parenchymal echogenicity in 73% and macroscopic renal cysts in 15%. There were seven live births, but only two neonates survived beyond 5 weeks. Pulmonary hypoplasia contributed to the five postnatal deaths. Associated congenital anomalies were noted at autopsy in six cases.