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Related Experiment Videos

Double outlet right ventricle: hemodynamic and anatomic correlations

S Sridaromont, R H Feldt, D G Ritter

    The American Journal of Cardiology
    |July 1, 1976
    PubMed
    Summary

    Double outlet ventricle has 16 variations. Pulmonary arterial oxygen saturation exceeding systemic levels is not a definitive sign of Taussig-Bing anomaly in these complex congenital heart conditions.

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    Area of Science:

    • Congenital Heart Disease
    • Pediatric Cardiology
    • Cardiac Anatomy

    Background:

    • Double outlet ventricle encompasses 16 anatomical variations.
    • Understanding these variations is crucial for diagnosis and treatment.
    • Previous studies have highlighted the complexity of great artery relationships and ventricular septal defects.

    Purpose of the Study:

    • To analyze the anatomical variations of double outlet ventricle.
    • To investigate the relationship between great artery position, ventricular septal defect location, and oxygen saturation levels.
    • To determine the diagnostic reliability of oxygen saturation measurements in identifying specific subtypes like Taussig-Bing anomaly.

    Main Methods:

    • Retrospective analysis of 62 cases with double outlet ventricle.

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  • Categorization based on great artery interrelations and ventricular septal defect location (subaortic, subpulmonary).
  • Correlation of anatomical findings with pre-operative oxygen saturation data.

    • Main Results:

    • Two-thirds of patients exhibited side-by-side great arteries; most had subaortic ventricular septal defects.
    • In double outlet right ventricle with malposition, defects were subpulmonary or subaortic.
    • Pulmonary arterial oxygen saturation exceeded systemic levels in all subpulmonary defect cases.
    • Subaortic defects showed varied saturation patterns; 25% had pulmonary saturation higher than systemic.
    • Higher pulmonary arterial oxygen saturation was not a reliable indicator of Taussig-Bing anomaly, occurring in only 4 of 25 such patients.

    Conclusions:

    • The anatomical variations in double outlet ventricle are diverse.
    • Oxygen saturation levels can be variable and are not solely indicative of specific anomalies like Taussig-Bing.
    • Accurate diagnosis requires comprehensive anatomical assessment beyond simple oxygen saturation measurements.