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Cardiac function in total anomalous pulmonary venous return before and after surgery
Circulation
|February 1, 1977
Summary
This study examined cardiac function in infants with total anomalous pulmonary venous return (TAPVR). Findings show impaired left ventricular function and abnormal left atrial function, which normalize after surgical repair.
Area of Science:
- Pediatric Cardiology
- Congenital Heart Disease
Background:
- Total anomalous pulmonary venous return (TAPVR) is a complex congenital heart defect.
- Understanding its impact on cardiac performance is crucial for surgical planning.
Purpose of the Study:
- To evaluate cardiac performance in infants with isolated TAPVR.
- To assess the role of pulmonary venous obstruction and left atrial size in TAPVR.
Main Methods:
- Echocardiographic assessment of ventricular volumes and ejection fractions.
- Comparison of cardiac parameters between infants with and without pulmonary venous obstruction.
Main Results:
- Infants with TAPVR exhibited increased right ventricular end-diastolic volume and reduced left ventricular ejection fraction.
- Abnormal left atrial function, with reduced reservoir capacity, was observed.
- Pulmonary venous obstruction correlated with smaller chamber volumes.
Conclusions:
- TAPVR significantly affects biventricular function and left atrial mechanics.
- Left atrial size is not a critical factor for surgical repair outcomes.
- Surgical correction of TAPVR effectively restores normal cardiac function.