Full text

Turn on search term navigation

© 2014. This work is published under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Background

We investigated the prevalence and the electrocardiographic and electrophysiological characteristics of ventricular arrhythmias (VAs) originating from the para-Hisian area.

Methods

Among 250 patients with idiopathic VAs, 8 (3.2%) had an ablation site in the para-Hisian region. For comparison with right ventricular (RV) para-Hisian VAs (n=6), 27 patients with VAs originating from the posterior RV outflow tract (RVOT) were studied.

Results

Para-Hisian VAs had an R wave in leads I and aVL. The VAs originating from the site below the His bundle region were determined to have a superior axis (n=4, 50%). A His potential was recorded at the proximal bipole of the successful ablation site in 6 patients. RV para-Hisian VAs had a narrower QRS width (114±12 ms vs. 139±12 ms, P=0.003), as well as a higher incidence of R waves in lead aVL (83.3% vs. 0%, P<0.001) and QS waves in lead V1 (83.3% vs. 22.2%, P=0.004) compared to posterior RVOT VAs. A greater R wave amplitude in lead I (1.15±0.34 mV vs. 0.34±0.18 mV, P=0.001) and a smaller R wave amplitude in the inferior leads (0.68±0.23 mV vs. 1.58±0.55 mV, P<0.001), with a higher R wave amplitude ratio in leads II/III (4.2±2.0 vs. 1.1±0.2, P=0.01) were the major ECG characteristics.

Conclusions

Para-Hisian VAs have distinctive electrocardiographic features and can be successfully eliminated without disturbance of atrioventricular conduction.

Details

Title
Idiopathic ventricular arrhythmia originating from the para-Hisian area: Prevalence, electrocardiographic and electrophysiological characteristics
Author
Ji-Eun Ban 1 ; Yung-Lung, Chen 1 ; Park, Hwan-Cheol 1 ; Dong-Hyeok, Kim 1 ; Lee, Dae-In 1 ; Park, Yae-Min 1 ; Choi, Jong-Il 1 ; Hong-Euy Lim 1 ; Park, Sang-Weon 1 ; Young-Hoon, Kim 1 

 Division of Cardiology, Department of Internal Medicine, Korea University Medical Center, Seoul, Republic of Korea 
Pages
48-54
Section
Original Article
Publication year
2014
Publication date
Feb 2014
Publisher
John Wiley & Sons, Inc.
ISSN
1880-4276
e-ISSN
1883-2148
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3074760100
Copyright
© 2014. This work is published under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.