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

AUTHORS

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

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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.

ARTICLE INFORMATION

Iranian Journal of Pediatrics: 23 (5); 593-596
Published Online: August 14, 2013
Article Type: Rapid Communication
Received: November 27, 2012
Accepted: July 13, 2013

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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.

 

Keywords

Tetralogy of Fallot Pulmonary Regurgitation Pulmonary Insufficiency Ventricular Performance ECG QRS Complex

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