P Wave Dispersion on 12-lead Electrocardiography in Adolescents with Neurocardiogenic Syncope

Overview

Journal Korean J Pediatr

Specialty Pediatrics

Date 2016 Nov 30

PMID 27895693

Citations 2

Authors

Dong-Hyuk Lee

Kyung-Min Lee

Jung-Min Yoon

Jae-Woo Lim

Kyung-Ok Kho

Hong-Ryang Kil

Eun-Jung Cheon

Affiliations

Soon will be listed here.

Abstract

Purpose: Neurocardiogenic syncope (NCS) is the most frequent cause of fainting during adolescence. Inappropriate cardiovascular autonomic control may be responsible for this clinical event. The head-up tilt test has been considered a diagnostic standard, but it is cumbersome and has a high false-positive rate. We performed a study to evaluate whether P-wave dispersion (PWD) could be a useful electrocardiographic parameter of cardiac autonomic dysfunction in children with NCS.

Methods: Fifty-four patients with NCS (28 boys and 26 girls; mean age, 12.3±1.4 years) and 55 age- and sex-matched healthy controls were enrolled. PWD was obtained as the difference between maximum and minimum durations of the P wave on standard 12-lead electrocardiography in all patients and controls.

Results: The value of PWD was significantly higher in the syncope group than in the control group (69.7±19.6 msec vs. 45.5±17.1 msec, respectively; <0.001). The minimum duration of P wave was shorter in the syncope group than in the control group (43.8±16.8 msec vs. 53.5±10.7 msec, respectively; <0.001). Left atrial volume was not different between the groups on transthoracic echocardiography.

Conclusion: PWD on echocardiography could be used as a clinical parameter in patients with NCS.

Citing Articles

P-wave peak time and P-wave dispersion in surface electrocardiography as initial predictors of new-onset atrial fibrillation in early-onset hypertension.

Jagannatha G, Antara I, Kosasih A, Kamardi S, Pradnyana I Hypertens Res. 2023; 47(1):137-148.

PMID: 37369850 DOI: 10.1038/s41440-023-01357-0.

[Change in P wave on electrocardiogram and its diagnostic value in children and adolescents with cardioinhibitory vasovagal syncope].

Wang S, Yi X, Ji Q, Wang Y, Wang C Zhongguo Dang Dai Er Ke Za Zhi. 2019; 21(11):1084-1088.

PMID: 31753089 PMC: 7389304.

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