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The International Journal of Cardiovascular Imaging

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01-08-2020 | Transthoracic Echocardiography | Original Paper

Transthoracic echocardiography features of adult-type anomalous left coronary artery from the pulmonary artery before and after surgery: highlights from observational study in a single center of China

Authors: Mingqi Li, Yu Wang, Wei Zhu, Caojin Zhang, Hongwen Fei

Published in: The International Journal of Cardiovascular Imaging | Issue 8/2020

Abstract

To review the imaging characteristics of adult-type anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) and evaluate the post-operative echocardiographic features. The transthoracic echocardiography (TTE) records and invasive coronary angiography (ICA), coronary computed tomography angiography (CTA) or operative findings of thirty adult patients with final diagnosis of ALCAPA were reviewed at our center. The diagnostic reliability of TTE was determined by comparing its results with that of ICA/CTA, and the echocardiographic features of the patients during early visit and post-operative follow-up were summarized. The coincidence rate of TTE and ICA/CTA diagnosing ALCAPA was 96.3% (26/27), and one case was misdiagnosed as coronary artery fistula. All patients showed abnormal left coronary ostium arising from the pulmonary trunk with retrograde coronary artery flow, 20 patients had enlarged right coronary artery (RCA), and 20 showed abundant inter-coronary septal coronary collaterals. Left ventricle (LV) abnormalities such as wall thinning, abnormal wall motion, papillary muscle fibrosis, mitral valve (MV) prolapse and moderate-severe mitral regurgitation (MR) were respectively observed in 4, 7, 10, 8 and 10 patients. Three patients showed ventricular septal defect, patent foramen ovale and tetralogy of Fallot respectively. Post-operative data was available for 12 patients, and showed that the diameter of RCA, size of left atrium (LA) and LV were decreased after surgery compared to the respective pre-operative values. Furthermore, inter-coronary septal coronary collaterals lessened in 8 of these patients. Although 6 patients showed residual mild MR, moderate or severe MR was not observed, and the ejection fraction (EF) also showed no obvious changes before and after surgery. TTE is a non-invasive diagnostic tool for adult-type ALCAPA, and can indicate abnormal coronary origin, collateral arteries and other associated malformations. Some of the structural and hemodynamic parameters of adult-type ALCAPA were improved after surgery.

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Title: Transthoracic echocardiography features of adult-type anomalous left coronary artery from the pulmonary artery before and after surgery: highlights from observational study in a single center of China
Authors: Mingqi Li
Yu Wang
Wei Zhu
Caojin Zhang
Hongwen Fei
Publication date: 01-08-2020
Publisher: Springer Netherlands
Keywords: Transthoracic Echocardiography
Echocardiography
CT Angiography
Echocardiography
Published in: The International Journal of Cardiovascular Imaging / Issue 8/2020
Print ISSN: 1569-5794
Electronic ISSN: 1875-8312
DOI: https://doi.org/10.1007/s10554-020-01857-x

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