Noninvasive diagnosis of coronary artery disease: a comparison between cardiokymographic and electrocardiographic stress testing.
Noninvasive cardiokymography has been further developed to be able to record wall motion abnormalities during exercise. The study was designed to evaluate the diagnostic accuracy of stress cardiokymography and electrocardiography in the diagnosis of coronary artery disease. 223 patients were included in a prospective investigation using a newly developed computerized cardiokymography device. Sensitivity, specificity, and positive predictive value were 61, 69 and 90% for exercise cardiokymography, and 57, 74 and 91% for exercise electrocardiography, respectively. There was no statistically significant difference between cardiokymography and electrocardiography. The combination of electrocardiography and cardiokymography did not produce a significant improvement in diagnostic accuracy in comparison to exercise electrocardiography alone.
Gauss
A
A
Department of Anesthesiology, University of Ulm, Germany. albrecht.gauss@medizin.uni-ulm.de
Röhm
H J
HJ
Strähle
A
A
Schäuffelen
A
A
Mohl
U
U
Meierhenrich
R
R
Georgieff
M
M
Schütz
W
W
D000328:Adult; D000368:Aged; D003324:Coronary Artery Disease / Q000175:diagnosis* / Q000503:physiopathology*; D003331:Coronary Vessels / Q000503:physiopathology; D004562:Electrocardiography; D004867:Equipment Design / Q000295:instrumentation; D005080:Exercise Test; D005260:Female; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D007734:Kymography / Q000295:instrumentation*; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D011446:Prospective Studies; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*