Echocardiography as a simple initial tool to assess right ventricular dimensions in patients with repaired tetralogy of Fallot before undergoing pulmonary valve replacement: Comparison with cardiovascular magnetic resonance imaging

Objective: Accurate assessment of the right ventricle (RV) is essential in patients with repaired tetralogy of Fallot (TOF). We proposed a simple echocardiographic method to assess the RV dimensions and evaluated the relationship between linear echocardiographic measures of the RV and RV volumes obt...

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Main Authors: Nithima Chaowalit, Kritvikrom Durongpisitkul, Rungroj Krittayaphong, Chulaluck Komoltri, Decho Jakrapanichakul, Suteera Phrudprisan
Other Authors: Mahidol University
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Published: 2018
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Online Access:https://repository.li.mahidol.ac.th/handle/123456789/14570
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spelling th-mahidol.145702018-06-11T12:02:41Z Echocardiography as a simple initial tool to assess right ventricular dimensions in patients with repaired tetralogy of Fallot before undergoing pulmonary valve replacement: Comparison with cardiovascular magnetic resonance imaging Nithima Chaowalit Kritvikrom Durongpisitkul Rungroj Krittayaphong Chulaluck Komoltri Decho Jakrapanichakul Suteera Phrudprisan Mahidol University Division of Pediatric Cardiology e Research & Development Division Medicine Objective: Accurate assessment of the right ventricle (RV) is essential in patients with repaired tetralogy of Fallot (TOF). We proposed a simple echocardiographic method to assess the RV dimensions and evaluated the relationship between linear echocardiographic measures of the RV and RV volumes obtained by cardiovascular magnetic resonance imaging (CMR). Methods: A total of 45 patients (27.4 ± 11.2 years; 40% male) with repaired TOF underwent CMR and echocardiography. Using echocardiography, RV dimensions were assessed from the parasternal short-axis view using the longest RV internal diameter perpendicular to the mid-interventricular septum. Significant RV dilatation was defined as an RV end-diastolic volume index > 160 mL/m 2 on CMR. Results: There were significant correlations between RV dimensions determined by echocardiography and the pulmonary regurgitation fraction, RV size, and function determined by CMR. The cutoff values of echocardiographic RV outflow tract (RVOT), end-systolic and end-diastolic dimension indices, and the combination of RVOT and end-diastolic dimension indices to determine significant RV dilatation were 19.0, 19.4, 24.5, and 45.2 mm/m 2 , respectively. The positive and negative predictive values for significant RV dilatation were 89.7% and 68.8% with RVOT diameter index ≥19.0 mm/m 2 , 85.0% and 52.4% with RV end-systolic dimension index ≥19.4 mm/m 2 , 87.5% and 64.7% with RV end-diastolic dimension index ≥24.5 mm/m 2 , and 92.3% and 80.0% with the combination of RVOT and end-diastolic dimension indices ≥45.2 mm/m 2 , respectively. Conclusion: Echocardiography can be used to assess RV size in patients with repaired TOF with acceptable correlations with CMR as the reference standard. © 2012, Wiley Periodicals, Inc. 2018-06-11T05:02:41Z 2018-06-11T05:02:41Z 2012-11-01 Article Echocardiography. Vol.29, No.10 (2012), 1239-1246 10.1111/j.1540-8175.2012.01766.x 15408175 07422822 2-s2.0-84868206099 https://repository.li.mahidol.ac.th/handle/123456789/14570 Mahidol University SCOPUS https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84868206099&origin=inward
institution Mahidol University
building Mahidol University Library
continent Asia
country Thailand
Thailand
content_provider Mahidol University Library
collection Mahidol University Institutional Repository
topic Medicine
spellingShingle Medicine
Nithima Chaowalit
Kritvikrom Durongpisitkul
Rungroj Krittayaphong
Chulaluck Komoltri
Decho Jakrapanichakul
Suteera Phrudprisan
Echocardiography as a simple initial tool to assess right ventricular dimensions in patients with repaired tetralogy of Fallot before undergoing pulmonary valve replacement: Comparison with cardiovascular magnetic resonance imaging
description Objective: Accurate assessment of the right ventricle (RV) is essential in patients with repaired tetralogy of Fallot (TOF). We proposed a simple echocardiographic method to assess the RV dimensions and evaluated the relationship between linear echocardiographic measures of the RV and RV volumes obtained by cardiovascular magnetic resonance imaging (CMR). Methods: A total of 45 patients (27.4 ± 11.2 years; 40% male) with repaired TOF underwent CMR and echocardiography. Using echocardiography, RV dimensions were assessed from the parasternal short-axis view using the longest RV internal diameter perpendicular to the mid-interventricular septum. Significant RV dilatation was defined as an RV end-diastolic volume index > 160 mL/m 2 on CMR. Results: There were significant correlations between RV dimensions determined by echocardiography and the pulmonary regurgitation fraction, RV size, and function determined by CMR. The cutoff values of echocardiographic RV outflow tract (RVOT), end-systolic and end-diastolic dimension indices, and the combination of RVOT and end-diastolic dimension indices to determine significant RV dilatation were 19.0, 19.4, 24.5, and 45.2 mm/m 2 , respectively. The positive and negative predictive values for significant RV dilatation were 89.7% and 68.8% with RVOT diameter index ≥19.0 mm/m 2 , 85.0% and 52.4% with RV end-systolic dimension index ≥19.4 mm/m 2 , 87.5% and 64.7% with RV end-diastolic dimension index ≥24.5 mm/m 2 , and 92.3% and 80.0% with the combination of RVOT and end-diastolic dimension indices ≥45.2 mm/m 2 , respectively. Conclusion: Echocardiography can be used to assess RV size in patients with repaired TOF with acceptable correlations with CMR as the reference standard. © 2012, Wiley Periodicals, Inc.
author2 Mahidol University
author_facet Mahidol University
Nithima Chaowalit
Kritvikrom Durongpisitkul
Rungroj Krittayaphong
Chulaluck Komoltri
Decho Jakrapanichakul
Suteera Phrudprisan
format Article
author Nithima Chaowalit
Kritvikrom Durongpisitkul
Rungroj Krittayaphong
Chulaluck Komoltri
Decho Jakrapanichakul
Suteera Phrudprisan
author_sort Nithima Chaowalit
title Echocardiography as a simple initial tool to assess right ventricular dimensions in patients with repaired tetralogy of Fallot before undergoing pulmonary valve replacement: Comparison with cardiovascular magnetic resonance imaging
title_short Echocardiography as a simple initial tool to assess right ventricular dimensions in patients with repaired tetralogy of Fallot before undergoing pulmonary valve replacement: Comparison with cardiovascular magnetic resonance imaging
title_full Echocardiography as a simple initial tool to assess right ventricular dimensions in patients with repaired tetralogy of Fallot before undergoing pulmonary valve replacement: Comparison with cardiovascular magnetic resonance imaging
title_fullStr Echocardiography as a simple initial tool to assess right ventricular dimensions in patients with repaired tetralogy of Fallot before undergoing pulmonary valve replacement: Comparison with cardiovascular magnetic resonance imaging
title_full_unstemmed Echocardiography as a simple initial tool to assess right ventricular dimensions in patients with repaired tetralogy of Fallot before undergoing pulmonary valve replacement: Comparison with cardiovascular magnetic resonance imaging
title_sort echocardiography as a simple initial tool to assess right ventricular dimensions in patients with repaired tetralogy of fallot before undergoing pulmonary valve replacement: comparison with cardiovascular magnetic resonance imaging
publishDate 2018
url https://repository.li.mahidol.ac.th/handle/123456789/14570
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