Comparison of quantitative flow ratio value of left anterior descending and circumflex coronary artery in patients with Takotsubo syndrome.
Int J Cardiovasc Imaging
; 36(1): 3-8, 2020 Jan.
Article
em En
| MEDLINE
| ID: mdl-31578638
ABSTRACT
Takotsubo syndrome (TTS) is an acute cardiac event without epicardial coronary obstruction but often with reversible ventricular motion abnormalities. Quantitative flow ratio (QFR) is a novel approach to evaluate the coronary stenosis significance on the basis of 3-dimensional quantitative coronary angiography (3D-QCA) and contrast flow by Thrombolysis in Myocardial Infarction frame count. This study aimed to evaluate and compare the QFR value in the left anterior descending artery (LAD) and the left circumflex artery (LCx) in patients with TTS. This retrospective and observational study enrolled 30 patients with TTS who underwent coronary angiography. We evaluated the QFR data using the 3D-QCA analysis and compared the QFR data in the LAD and the LCx. No significant differences were observed in terms of flow velocity, percent diameter stenosis, minimum lumen diameter, and reference diameter between LAD and LCx. However, vessel QFR in the LAD was significantly reduced compared with that in the LCx (0.98 [0.94 to 0.99] vs. 1.00 [0.99 to 1.00], P < 0.001). Ejection fraction at baseline and initial troponin-I levels were not correlated with the vessel QFR both in the LAD and the LCx. The QFR value in the LAD was significantly reduced compared to that in the LCx in patients with TTS.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Circulação Coronária
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Vasos Coronários
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Cardiomiopatia de Takotsubo
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Microcirculação
Tipo de estudo:
Observational_studies
Limite:
Aged
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Aged80
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Female
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Humans
/
Male
Idioma:
En
Revista:
Int J Cardiovasc Imaging
Assunto da revista:
DIAGNOSTICO POR IMAGEM
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Estados Unidos