P wave dispersion on 12-lead electrocardiography in adolescents with neurocardiogenic syncope / 소아과
Korean Journal of Pediatrics
; : 451-455, 2016.
Article
en En
| WPRIM
| ID: wpr-228477
Biblioteca responsable:
WPRO
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; P<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; P<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.
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Índice:
WPRIM
Asunto principal:
Síncope
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Ecocardiografía
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Síncope Vasovagal
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Electrocardiografía
Límite:
Adolescent
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Child
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Female
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Humans
Idioma:
En
Revista:
Korean Journal of Pediatrics
Año:
2016
Tipo del documento:
Article