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Related Experiment Videos

Fetal urethral obstruction: US evaluation.

B S Mahony, P W Callen, R A Filly

    Radiology
    |October 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Antenatal ultrasound can identify fetal urethral obstruction. Poor prognostic signs like oligohydramnios and ascites indicate a high risk of neonatal death.

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    Area of Science:

    • Perinatology
    • Fetal Medicine
    • Pediatric Urology

    Background:

    • Fetal urethral obstruction is a serious condition with significant neonatal mortality.
    • Antenatal diagnosis is crucial for predicting outcomes and planning management.

    Purpose of the Study:

    • To identify key antenatal sonographic features of fetal urethral obstruction.
    • To determine which sonographic findings predict neonatal survival.

    Main Methods:

    • Retrospective review of 40 in utero cases of fetal urethral obstruction.
    • Analysis of sonographic findings including bladder and urethral dilation, oligohydramnios, caliectasis, ascites, and calcifications.

    Main Results:

    • All fetuses presented with urinary bladder abnormalities; 47.5% had posterior urethral dilation.

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  • Neonatal survival was 37.5% (15/40 fetuses).
  • Poor prognostic indicators included oligohydramnios, absent caliectasis, urine ascites, and dystrophic calcifications.

    • Conclusions:

    • Antenatal sonography is vital for diagnosing fetal urethral obstruction.
    • Specific sonographic findings, particularly oligohydramnios and ascites, are strong predictors of poor neonatal outcome.