Frontal QRS-T angle is related wtih hemodynamic significance of coronary artery stenosis in patients with single vessel disease

Autor: Ayse Beril Turkyilmaz, Ali Kemal Kalkan, Serkan Kahraman, Yalcin Avci, Mehmet Erturk, Fatih Uzun, Arda Can Dogan
Rok vydání: 2019
Předmět:
QT interval
Male
lcsh:Diseases of the circulatory (Cardiovascular) system
medicine.medical_specialty
Fractional flow reserve
030204 cardiovascular system & hematology
Sensitivity and Specificity
Coronary artery disease
Angina
Electrocardiography
03 medical and health sciences
QRS complex
0302 clinical medicine
Internal medicine
medicine
Humans
Angina
Stable
030212 general & internal medicine
fractional flow reserve
single vessel disease
Original Investigation
Aged
Retrospective Studies
medicine.diagnostic_test
business.industry
Coronary Stenosis
Hemodynamics
Middle Aged
medicine.disease
QRS-T angle
Confidence interval
Fractional Flow Reserve
Myocardial
Stenosis
Logistic Models
ROC Curve
lcsh:RC666-701
Multivariate Analysis
Exercise Test
Cardiology
Female
Cardiology and Cardiovascular Medicine
business
coronary artery disease
Zdroj: Anatolian Journal of Cardiology
Anatolian Journal of Cardiology, Vol 22, Iss 4, Pp 194-201 (2019)
ISSN: 2149-2263
Popis: Objective: Fractional flow reserve (FFR) measurement is used to decide the hemodynamic significance of coronary artery lesion. QRS-T angle (QRSTa) is a novel marker of myocardial repolarization abnormality and is affected by obstructive coronary artery disease. The aim of the present study was to evaluate the association between QRSTa and coronary FFR measurement in patients with isolated left anterior descending (LAD) artery stenosis. Methods: A total of 197 patients undergoing FFR measurement for isolated LAD artery stenosis were retrospectively enrolled in the present study. According to FFR value, patients were divided into two groups as 139 patients with normal FFR (>0.80, group 1) and 58 patients with low FFR (≤0.80, group 2). A 12-lead surface electrocardiography of all subjects that had been recorded before performing coronary angiography was evaluated to measure QRSTa, as well as baseline demographic and clinical variables. Results: The mean age of group 2 was significantly higher than that of group 1 (61+-11 and 64+-11, p=0.044). While there were no differences in heart rate, QRS duration, and corrected QT interval between the two groups, QT interval [377 (359–397) and 379 (367–410), p=0.045] and frontal QRSTa [59 (10–120) and 86 (22–132), p
Databáze: OpenAIRE
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