title: Relationship between QRS score and the extent of coronary artery disease.
abstract: We studied 92 patients to determine the relationship between the QRS treadmill score (QTS) and extent of coronary artery disease. The results were compared to those of ST segment deviation in a < (+)QRS score > population. A cut off point of < 5 mm was used for mild to moderate risk patients whereas a QTS of < 3 was considered high risk for the patients. 43% of the patients had high risk QTS and 57% mild to moderate QTS. A highly significant correlation was observed between the extent of coronary artery disease and the high risk group of patients, whereas nonsignificant changes were observed in the control group (p < 0.001). Finally, the results indicate that in patients with a (+) QTS score (< 5 mm), coronary artery disease was significant and accordingly extensive during coronary angiography. On the other hand, a (+) QRS score proved to be superior to ST deviation in predicting critical coronary stenoses in the same population (F ratio; 41 vs 24).
authors.affiliation: Cardiac Department, Selcuk University, School of Medicine Konya, Turkey.
authors.forename: V G
authors.initials: VG
authors.lastname: Cin
authors.forename: M
authors.initials: M
authors.lastname: Celik
authors.forename: S
authors.initials: S
authors.lastname: Ulucan
mesh_terms: D000368:Aged; D017023:Coronary Angiography; D003327:Coronary Disease / Q000000981:diagnostic imaging / Q000503:physiopathology*; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests