Utility of high and standard right precordial leads during ajmaline testing for the diagnosis of Brugada syndrome

Malini Govindan*, Velislav N. Batchvarov, Hariharan Raju, Nesan Shanmugam, Mukhtar Bizrah, Rachael Bastiaenen, Anatoli Kiotsekoglou, John Camm, Elijah R. Behr

*Corresponding author for this work

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

Aims: The authors sought to assess the value of the high right precordial leads (RPL) to detect the Type I Brugada ECG pattern in patients suspected of carrying Brugada syndrome (BrS). Methods: Ajmaline testing using 15-lead ECGs was performed in 183 patients suspected of carrying BrS. Standard 12-lead ECG with V1-V3 recorded from the fourth intercostal space and an additional three leads placed over V1-V3 recorded from the third intercostal space were analysed. ECGs were analysed for a Type I ECG pattern in either the standard or high RPLs. Results: Of the 183 tests, 31 (17%) were positive, and 152 were negative. In all positive studies, at least one high RPL became positive. In 13/31 (42%) cases, the Type I ECG pattern could be observed only in the high RPLs. Standard or high V3 were never positive before standard or high V1-V2. In seven patients, a Type I pattern was seen in one standard and one high RPL (vertical relationship). Conclusions: The high RPLs are more sensitive than the conventional 12-lead ECG alone and initial observations suggest that they remain specific for BrS, while standard and high lead V3 offer redundant data. A vertical relationship of type 1 patterns may have a similar diagnostic value to that of a horizontal pair.

Original languageEnglish
Pages (from-to)1904-1908
Number of pages5
JournalHeart
Volume96
Issue number23
DOIs
Publication statusPublished - 1 Dec 2010
Externally publishedYes

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    Govindan, M., Batchvarov, V. N., Raju, H., Shanmugam, N., Bizrah, M., Bastiaenen, R., ... Behr, E. R. (2010). Utility of high and standard right precordial leads during ajmaline testing for the diagnosis of Brugada syndrome. Heart, 96(23), 1904-1908. https://doi.org/10.1136/hrt.2010.201244