#PAGE_PARAMS# #ADS_HEAD_SCRIPTS# #MICRODATA#

Dispersion of QT Intervals – A Myth or a Diagnostic Symptom


Authors: O. Kittnar;  M. Mlček
Authors‘ workplace: Fyziologický ústav 1. LF UK, Praha
Published in: Čas. Lék. čes. 2004; : 604-607
Category:

Overview

Background.
QT interval dispersion (QTd) is conventionally interpreted as a result of repolarization heterogeneityin ventricular myocardium. However, another concept of QTd origin has been discussed recently, suggesting thatdifferent projections of the repolarization vector into individual ECG leads could be responsible for the differencesin QT interval duration. Moreover, the reproducibility could be influenced by factors both electrocardiographic (Twave amplitude, U wave) and extracardiac (noise, ECG measures). In the presented study we have followed the QTdin two groups of patients with proved changes of an electric heart field.Methods and Results. Studied groups: 1. Control group, 2. Healthy pregnant women, 3. Patients treated withdosulepine. QT interval was measured from 80 unipolar chest leads used for body surface potential mapping. TheQTdwas significantly higher in both experimental groups in comparison with the control group (p

Key words:
QT dispersion, vectorcardiography, dosulepine, body surface potential mapping.

Full text is not available online.
If interested in a scan of this journal, contact NTO ČLS JEP.

Labels
Addictology Allergology and clinical immunology Angiology Audiology Clinical biochemistry Dermatology & STDs Paediatric gastroenterology Paediatric surgery Paediatric cardiology Paediatric neurology Paediatric ENT Paediatric psychiatry Paediatric rheumatology Diabetology Pharmacy Vascular surgery Pain management Dental Hygienist

Article was published in

Journal of Czech Physicians


Most read in this issue
Topics Journals
Login
Forgotten password

Enter the email address that you registered with. We will send you instructions on how to set a new password.

Login

Don‘t have an account?  Create new account

#ADS_BOTTOM_SCRIPTS#