2022
DOI: 10.36660/abc.20210787
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Tortuosidade das Artérias Coronárias como um Novo Fenótipo para Isquemia sem Doença Arterial Coronariana

Abstract: Fundamento: As artérias coronárias tendem a ser mais tortuosas que outras artérias e acompanham os movimentos repetidos de flexão e relaxamento que ocorrem durante o ciclo cardíaco. A Tortuosidade das artérias Coronárias (TCor) causa alterações no fluxo coronariano, com uma redução na pressão de perfusão distal, o que pode levar à isquemia miocárdica. Objetivo: Avaliar a associação entre TCor e isquemia miocárdica. Métodos: Entre janeiro de 2015 e dezembro de 2017, 57 pacientes com angina e doença arterial cor… Show more

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Cited by 3 publications
(3 citation statements)
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“…Heart rate, PR interval, QTc interval (QT / √RR), presence of bundle branch block, and ST / T segment changes were evaluated from the ECG. Body mass index was calculated as weight / height 2 .…”
Section: Laboratory Definitionsmentioning
confidence: 99%
See 1 more Smart Citation
“…Heart rate, PR interval, QTc interval (QT / √RR), presence of bundle branch block, and ST / T segment changes were evaluated from the ECG. Body mass index was calculated as weight / height 2 .…”
Section: Laboratory Definitionsmentioning
confidence: 99%
“…Coronary angiography (CAG) is considered the gold standard test for the diagnosis of CAD. CAG shows that approximately half of patients with evidence of myocardial ischemia, typically chest pain, have no occlusive lesion in their coronary arteries or have less than 40 % stenosis of a coronary artery [2]. It is thought that coronary tortuosity alters coronary flow, and reduces perfusion pressure distal to the tortuous segment.…”
Section: Introductionmentioning
confidence: 99%
“…[1][2][3] Some features of the coronary anatomy have been associated with the pathophysiology of atherosclerotic disease. [4][5][6] Previous studies have shown that hemodynamic-induced local mechanical forces (e.g., wall shear stress) may influence on the localization, initiation, and progression of atherosclerosis. [7][8][9][10] Bifurcations, side branches, and proximal portions of the vessel are more affected than other sites.…”
Section: Introductionmentioning
confidence: 99%