TY - JOUR
T1 - A planar QRS-T angle >90° is associated with multivessel coronary artery disease in patients undergoing coronary angiography
AU - Palaniswamy, Chandrasekar
AU - Singh, Tarunjit
AU - Aronow, Wilbert S.
AU - Ahn, Chul
AU - Kalapatapu, Kumar
AU - Weiss, Melvin B.
AU - Pucillo, Anthony L.
AU - Monsen, Craig E.
PY - 2009/12/1
Y1 - 2009/12/1
N2 - Background: The aim of the study was to investigate the severity of coronary artery disease (CAD) in patients who had a planar QRS-T angle >90° versus ≤90° . Material/Methods: Coronary angiography was performed in 1,229 consecutive patients. Obstructive CAD was diagnosed if there was >50% obstruction of ≥1 major coronary artery. All QRS-T angle measurements were made from a 12-lead electrocardiogram by 2 authors who agreed on the measurement and who were blinded to the coronary angiographic findings. A QRS-T angle >90° was considered abnormal. Results: Obstructive CAD of 2 or 3 vessels was present in 309 of 495 patients (62%) with a planar QRS-T angle >90° and in 250 of 734 patients (34%) with a planar QRS-T angle ≤90° . (p<0.0001). Stepwise logistic regression analyses showed that significant independent risk factors for 2- or 3-vessel CAD were age (odds ratio =1.05), male gender (odds ratio =1.8), black race (odds ratio =0.34), unstable angina (odds ratio =0.16), positive stress test (odds ratio =3.0), hypertension (odds ratio =3.0), dyslipidemia (odds ratio =2.9), QRS-T angle (odds ratio =7.2), left bundle branch block (odds ratio =2.9), right bundle branch block (odds ratio =0.17), smoking (odds ratio =9.7), and body mass index ≥30 kg/m2 (odds ratio =1.5). Conclusions: The prevalence of 2- or 3-vessel obstructive CAD was significantly higher in patients with a planar QRS-T angle >90° than in patients with a planar QRS-T angle ≤90° (pp<0.0001).
AB - Background: The aim of the study was to investigate the severity of coronary artery disease (CAD) in patients who had a planar QRS-T angle >90° versus ≤90° . Material/Methods: Coronary angiography was performed in 1,229 consecutive patients. Obstructive CAD was diagnosed if there was >50% obstruction of ≥1 major coronary artery. All QRS-T angle measurements were made from a 12-lead electrocardiogram by 2 authors who agreed on the measurement and who were blinded to the coronary angiographic findings. A QRS-T angle >90° was considered abnormal. Results: Obstructive CAD of 2 or 3 vessels was present in 309 of 495 patients (62%) with a planar QRS-T angle >90° and in 250 of 734 patients (34%) with a planar QRS-T angle ≤90° . (p<0.0001). Stepwise logistic regression analyses showed that significant independent risk factors for 2- or 3-vessel CAD were age (odds ratio =1.05), male gender (odds ratio =1.8), black race (odds ratio =0.34), unstable angina (odds ratio =0.16), positive stress test (odds ratio =3.0), hypertension (odds ratio =3.0), dyslipidemia (odds ratio =2.9), QRS-T angle (odds ratio =7.2), left bundle branch block (odds ratio =2.9), right bundle branch block (odds ratio =0.17), smoking (odds ratio =9.7), and body mass index ≥30 kg/m2 (odds ratio =1.5). Conclusions: The prevalence of 2- or 3-vessel obstructive CAD was significantly higher in patients with a planar QRS-T angle >90° than in patients with a planar QRS-T angle ≤90° (pp<0.0001).
KW - Coronary angiography
KW - Coronary artery disease
KW - Planar QRS-T angle
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M3 - Article
C2 - 19946243
AN - SCOPUS:75149187596
VL - 15
SP - MS31-MS34
JO - Medical Science Monitor
JF - Medical Science Monitor
SN - 1234-1010
IS - 12
ER -