Prevalence of right bundle-branch block and right precordial ST-segment elevation (Brugada-type electrocardiogram) in Japanese children.

Autor:	Yamakawa Y; Second Department of Internal Medicine, Yokohama City University School of Medicine, Japan., Ishikawa T, Uchino K, Mochida Y, Ebina T, Sumita S, Kobayashi T, Matsushita K, Matsumoto K, Ohkusu Y, Nishizawa T, Takigiku K, Iwamoto M, Kimura K, Umemura S
Jazyk:	angličtina
Zdroj:	Circulation journal : official journal of the Japanese Circulation Society [Circ J] 2004 Apr; Vol. 68 (4), pp. 275-9.
DOI:	10.1253/circj.68.275
Abstrakt:	Background: The prevalence of Brugada-type electrocardiogram (ECG) in schoolchildren remains unclear. This study aimed to further investigate this condition. Methods and Results: We studied the prevalence of Brugada-type ECG in 20,387 children (10,434 males and 9,953 females, 9.7 +/- 3.2 [SD] years old) during a school health examination in Kanagawa Prefecture, Japan, in 2002. We considered right bundle-branch block and ST-segment elevation of the J point of > or =0.1 mV in leads V1 through V3 as Brugada-like ECG, and an ECG was considered to be Brugada-type when the 12-lead ECG fully meet the criteria for the Brugada syndrome as recently published in a consensus report. Only 2 children (0.0098%, 95% confidence interval (CI): 0 to 0.023%) completely conformed to the criteria for Brugada-type ECG. Brugada-like ECG was found in 11 (10 male) of 20,387 children (0.054%, 95% CI: 0.022 to 0.086%). The prevalence in males was significantly higher than that in females, even in children (0.096% vs 0.010%, p=0.012). Stratified according to age, there was tendency for the prevalence of Brugada-like ECG to increase up to puberty (first graders, 0.01%; fourth graders, 0.05%; seventh graders, 0.08%; tenth graders, 0.23%; p=0.068). Conclusion: The prevalence of Brugada-type ECG in Japanese children was much lower than that reported in the adult population.
Databáze:	MEDLINE
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