P wave dispersion on 12-lead electrocardiography in adolescents with neurocardiogenic syncope
| Autor: | Dong-Hyuk Lee, Kyung-Min Lee, Jung-Min Yoon, Jae-Woo Lim, Kyung-Ok Kho, Hong-Ryang Kil, Eun-Jung Cheon |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Korean Journal of Pediatrics, Vol 59, Iss 11, Pp 451-455 (2016) |
| Druh dokumentu: | article |
| ISSN: | 1738-1061 2092-7258 |
| DOI: | 10.3345/kjp.2016.59.11.451 |
| Popis: | PurposeNeurocardiogenic 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.MethodsFifty-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 controlsResultsThe 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; P |
| Databáze: | Directory of Open Access Journals |
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