Correlation between QRS Duration, Pulmonary Insufficiency and Right Ventricle Performance in Totally Corrected Tetralogy of Fallot

authors:

avatar Keyhan Sayadpour Zanjani 1 , * , avatar Asadolah Tanasan 2 , avatar Armen Kocharian 3 , avatar Farah K. Payravian 4 , avatar Sadat Torabian 5

Iranian Journal of Pediatrics: Vol.23, issue 5; 593-596
published online: August 14, 2013
article type: Rapid Communication
received: November 27, 2012
accepted: July 13, 2013

how to cite: Sayadpour Zanjani K , Tanasan A, Kocharian A, K. Payravian F, Torabian S. Correlation between QRS Duration, Pulmonary Insufficiency and Right Ventricle Performance in Totally Corrected Tetralogy of Fallot. Iran J Pediatr. 2013;23(5): 593-596. 

Abstract

Objective: Despite progresses in surgical correction of Tetralogy of Fallot, pulmonary insufficiency and progressive dysfunction of the right ventricle impress its long-term prognosis. In this study we examined the correlations between QRS duration, pulmonary insufficiency and right ventricular performance index. Methods: We enrolled 57 repaired Tetralogy of Fallot patients. QRS duration on electrocardiogram, pulmonary regurgitation index (regurgitation time to diastolic time ratio), and right ventricular myocardial performance index were measured. Findings: There was a strong inverse correlation between QRS duration and pulmonary regurgitation index. However, significant correlation did not exist between QRS duration and right ventricular myocardial performance index. QRS duration ≥160 ms predicted severe pulmonary regurgitation with 100% sensitivity and 87% specificity. Conclusion: Increased QRS duration can predict severity of pulmonary regurgitation.
 

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