Research Article
Volume 5 Issue 8 - 2018
Effect of Body Position on a Mobile, Vector-Derived, 12-Lead Electrocardiogram
Péter Kenedi1*, István Préda2,3, Jessica Thuer1, Ádám Székely2, Marcus Skribek2,3, David Triebl1, Athar Abu Helou1 and Markus Riemenschneider1
1Personal MedSystems GmbH, Frankfurt, Germany
2Department of Cardiology, Central Hospital of the Hungarian Defence Forces, Budapest, Hungary
3Department of Cardiology and Cardiovascular Surgery, Semmelweis University, Budapest, Hungary
*Corresponding Author: Péter Kenedi, Personal MedSystems GmbH, Frankfurt, Germany.
Received: July 18, 2018; Published: July 30, 2018
Citation: Péter Kenedi., et al. “Effect of Body Position on a Mobile, Vector-Derived, 12-Lead Electrocardiogram”. EC Cardiology 5.8 (2018): 589-595.
Background: The electrocardiogram (ECG) is a critical component of cardiovascular diagnosis. ECGs are standardly recorded in the supine position; however, due to time and space constraints as well as patient limitations, they are often performed in other positions (sitting, standing). Several studies have examined the effect of body position on electrocardiograms using various methods, body positions, and parameters, with varied results reported. This study’s aim was to further evaluate the effect of body position on a mobile, vector-derived, 12-lead ECG, to determine if body position should be considered when performing an ECG.
Methods: Electrocardiograms from 39 patients were examined in the lying, sitting, and standing positions. Heart rate, PQ interval, QRS duration, QTc interval, P-, QRS-, and T-vectors, and R and S amplitudes were statistically evaluated using correlation coefficient and one-factorial Analysis of Variance (ANOVA). Changes of the Q waves, ST segments, and T waves were qualitatively evaluated.
Results: No changes of statistical or clinical significance were detected. No notable differences were seen in regard to intervals. For the vectors, a -9 degree change in the P axis with sitting, a -4 degree change in the QRS axis when standing, and a 3.8 degree increase in the T vector with change of position were seen. Negligible changes were seen in the wave amplitudes. 5/39 patients (13%) demonstrated T wave changes with change in position.
Conclusion: The results suggest that a vector-derived, 12-lead electrocardiogram can be used in different body positions without impacting key ECG parameters.
Keywords: Mobile Electrocardiogram; Vector-Derived Leads; CardioSecur 12-Lead ECG; Effect of Body Positions; Clinical ECG Diagnosis
Copyright: © 2018 Péter Kenedi.,et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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