Prediction of the presence and severity of coronary arteriopathy and left ventricular dysfunction by discriminant multivariate analysis of the exercise test
Rossi, L.; Olivieri, D.; Scazzina, L.; Castello, C.; Carbonieri, E.; Buonanno, C.; Nidasio, G.P.; Zardini, P.
Giornale Italiano di Cardiologia 15(11): 1023-1029
1985
ISSN/ISBN: 0046-5968 PMID: 3830752 Document Number: 261995
266 male p., with chest pain and without previous myocardial infarction were studied by exercise test and coronary arteriography. 17 had no coronary disease (group C-0), 22 had less than or equal to 50% coronary stenosis (C-1), 65 had severe 1 vessel disease (C-2), 73 had 2 vessel disease (C-3), 89 had 3 vessel disease (C-4). 95 had normal ventricular function (group V-0), 111 had hypokinetic ventricular segments (V-1) and 60 had akinetic ventricular segments (V-2). 11 exercise test variables were stepwise selected to discriminate the C-groups and the V-groups. For C-groups significant variables were: test result, heart rate increment, number of leads, work load, rate-pressure product, systolic pressure increment. By 4 discriminant functions, 41% p. were correctly classified. For V-groups significant variables were: hear rate increment, test result, effort angina, rate-pressure product, number of leads, ST depression, ST configuration, age. By 2 discriminant functions 53% p. were correctly classified.