Correlation between QRS Duration,Pulmonary Insufficiency and Right Ventricle Performance in Totally Corrected Tetralogy of Fallot |
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| Authors: | Asadolah Tanasan Armen Kocharian Keyhan Sayadpour Zanjani Farah K. Payravian Sadat Torabian |
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| Affiliation: | 1.Department of Pediatric, Hamedan University of Medical Sciences, Hamedan, Iran;2.Department of Pediatrics, Tehran University of Medical Sciences, Tehran, Iran;3.Pediatric Cardiology Division, Children''s Medical Center, Pediatrics Center of Excellence, Tehran, Iran;4.Department of Pediatrics, Islamic Azad University Kazeroon Branch, Kazeroon, Iran;5.Department of Epidemiology, Hamedan University of Medical Sciences, Hamedan, Iran |
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| Abstract: | ObjectiveDespite 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.MethodsWe 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.FindingsThere 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.ConclusionIncreased QRS duration can predict severity of pulmonary regurgitation. |
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| Keywords: | Tetralogy of Fallot Pulmonary Regurgitation Pulmonary Insufficiency Ventricular Performance ECG QRS Complex |
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