title: Accuracy of the precordial V-Quick patch in persons with cardiac or pulmonary disease.
abstract: The aim of this study was to demonstrate the equivalence of 12-Lead Electrocardiograms (EKG) obtained with the new V-Quick patch and traditional tab-style electrodes. Using a within-subject design, a convenience sample of 100 subjects with either cardiac or pulmonary disease underwent two 12-lead EKGs, one with the traditional tab-style electrodes and one with the precordial patch. Computer-generated measurements of waveform axes and amplitude were obtained for both EKGs. Comparison of mean and 95% confidence intervals revealed no significant differences in Q, R or S wave amplitude across the six precordial leads. Furthermore, a four-factor ANOVA found no significant difference (p > 0.05) in the Q, R and S wave amplitude between the type of electrode, gender and type of disease. A subset of 29 EKGs read by three experts found intra- (.90) and inter-rater (.84) reliability to be strong. In conclusion, the precordial V-Quick patch provided equivalent EKGs to those obtained using standard tab-style electrodes.
authors.affiliation: University of Cincinnati College of Nursing, Cincinnati, Ohio 45221-0038, USA.
authors.forename: Linda S
authors.initials: LS
authors.lastname: Baas
authors.forename: Theresa A
authors.initials: TA
authors.lastname: Beery
authors.forename: Gordon A
authors.initials: GA
authors.lastname: Allen
authors.forename: Susan
authors.initials: S
authors.lastname: Ware
authors.forename: Sumant
authors.initials: S
authors.lastname: Lamba
authors.forename: William T
authors.initials: WT
authors.lastname: Abraham
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D004562:Electrocardiography / Q000295:instrumentation*; D004566:Electrodes; D004867:Equipment Design; D005260:Female; D006331:Heart Diseases / Q000175:diagnosis*; D006801:Humans; D008171:Lung Diseases / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results