By Topic

Influence of diabetes mellitus on T wave and QRS complex alternans during stress ECG testing

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Christov, I. ; Inst. of Biophys. & Biomed. Eng., Sofia, Bulgaria ; Bortolan, G. ; Simova, I. ; Katova, T.

The aim of the study is to evaluate the influence of diabetes mellitus (DM) on T-wave and QRS-complex alternans (TWA&QRSA) during stress ECG testing. Principal component analysis, combined with wave amplitude computation was used for TWA&QRSA quantification. We studied 77 patients (64±1 1 years, 44% male). DM was present in 43% and angiographically significant coronary artery disease (AS_CAD) in 51%. Patients with DM had higher QRSA compared to non-diabetics (p=0.026); TWA did not differ significantly. Patients with positive stress ECG tests had higher TWA&QRSA compared to those with negative stress tests (p<;0.001 for TWA and p=0.001 for QRSA), no matter of the presence or absence of DM. In the subgroup of patients with negative stress test, diabetics had higher TWA values (p=0.001). With positive stress test this difference was no longer present.

Published in:

Computing in Cardiology, 2011

Date of Conference:

18-21 Sept. 2011