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[Interventricular communication with systolic occlusion]

R Caffarena, F Bouchard

    Archives Des Maladies Du Coeur Et Des Vaisseaux
    |April 1, 1975
    PubMed
    Summary
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    Ventricular septal defects can close during systole through mechanisms beyond muscular type defects. These include right ventricular outflow tract stenosis or pulmonary hypertension, confirmed via hemodynamic and angiocardiographic studies.

    Area of Science:

    • Cardiology
    • Pediatric Cardiology
    • Congenital Heart Disease

    Context:

    • Ventricular septal defects (VSDs) are common congenital heart abnormalities.
    • Some VSDs exhibit systolic occlusion, a phenomenon typically associated with muscular VSDs and normal pulmonary pressures.
    • However, alternative mechanisms for systolic occlusion in VSDs exist, particularly in complex cases.

    Purpose:

    • To investigate and describe the diagnostic features of ventricular septal defects with systolic occlusion.
    • To explore mechanisms of systolic occlusion in VSDs beyond the typical muscular type.
    • To correlate diagnostic findings with post-mortem or operative examinations.

    Summary:

    • This study examines ventricular septal defects (VSDs) where systolic occlusion occurs through mechanisms other than the usual muscular type.

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  • Cases analyzed included those with right ventricular outflow tract stenosis (14 instances) and pulmonary hypertension (1 instance).
  • Diagnostic evaluation relied heavily on hemodynamic assessments and angiocardiography, with findings validated through post-mortem or operative data.

    • Impact:

    • Provides insights into the pathophysiology of complex VSDs with systolic occlusion.
    • Enhances understanding of diagnostic modalities for identifying specific VSD subtypes.
    • Contributes to improved diagnostic accuracy and potentially surgical planning for VSDs with unusual occlusion mechanisms.