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Ventricular inversion and tricuspid atresia (VITA complex): long survival without surgical treatment
Insights
This study observed five patients with complex congenital heart defects, including ventricular inversion and atresia of the tricuspid valve. Smaller interatrial communications correlated with longer survival, suggesting a role in pulmonary circulation balance.
Area of Science:
- Cardiology
- Pediatric Cardiology
- Congenital Heart Disease
Background:
- Ventricular inversion and corrected transposition of the great arteries are complex congenital heart defects.
- Atresia of the left-sided atrioventricular (tricuspid) valve presents significant challenges in cardiac function.
- Understanding the impact of intracardiac shunts on pulmonary vascular disease is crucial for patient outcomes.
Purpose of the Study:
- To investigate the clinical course and survival of patients with ventricular inversion, corrected transposition of the great arteries, and tricuspid atresia.
- To determine the influence of interatrial communication size on the development of hypertensive pulmonary vascular disease.
- To explore the relationship between pulmonary circulation dynamics and long-term survival in this patient cohort.
Main Methods:
- Retrospective case series analysis of five patients.
- Clinical data review including cardiac anatomy, interatrial communication size, and pulmonary vascular status.
- Assessment of patient survival and correlation with echocardiographic and hemodynamic findings.
Main Results:
- Three patients with large or small interatrial communications died in infancy, with varying degrees of pulmonary vascular disease and cyanosis.
- Two patients with small interatrial communications survived into adulthood, one developing severe venous-type hypertensive pulmonary vascular disease.
- Longer survival in adult patients was associated with a balance in pulmonary circulation resistance and blood flow, influenced by interatrial communication size.
Conclusions:
- Interatrial communication size plays a critical role in modulating pulmonary blood flow and vascular resistance in patients with complex congenital heart disease.
- A balanced pulmonary circulation, influenced by shunt size, may contribute to longer survival in adults with ventricular inversion and tricuspid atresia.
- Further research is warranted to optimize management strategies for these complex cardiac anomalies.
Abstract:
Five patients with ventricular inversion, corrected transposition of the great arteries, and atresia of the left-sided atrioventricular (tricuspid) valve have been observed. Three patients died in infancy, two had large interatrial communications, one with an early stage of arterial-type hypertensive pulmonary vascular disease, and the third patient had a very small interatrial communication and severe cyanosis. The other two patients survived into adulthood; both had small interatrial communications, and one had severe venous-type hypertensive pulmonary vascular disease. The longer survival of the two patients is attributed to a balance between resistance and blood flow in the pulmonary circulation influenced by the size of the interatrial communication.