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Iranian Journal of Pediatrics
Tehran University of Medical Sciences Press
ISSN: 1018-4406
EISSN: 2008-2150
Vol. 23, No. 5, 2013, pp. 593-596
Bioline Code: pe13111
Full paper language: English
Document type: Short Communication
Document available free of charge

Iranian Journal of Pediatrics, Vol. 23, No. 5, 2013, pp. 593-596

 en Correlation between QRS Duration, Pulmonary Insufficiency and Right Ventricle Performance in Totally Corrected Tetralogy of Fallot
Tanasan, Asadolah; Kocharian, Armen; Zanjani, Keyhan Sayadpour; Payravian, Farah K. & Torabian, Sadat


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.

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

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