Diagnostic performance of QT interval variables from 24-h electrocardiography in the long QT syndrome

Nathalie Neyroud , P. Maison-Blanche (1) , I Denjoy , S. Chevret (2) , C Donger , E Dausse , J. Fayn (3) , F Badilini , N Menhabi , K. Schwartz , P Guicheney , P. Coumel (1)

1 Service de cardiologie (APHP-Hôpital Lariboisière)
2 Biostatistique et épidémiologie clinique
3 MTIC - Methodologies de Traitement de l'Information en Cardiologie

The long QT syndrome is mainly defined by QT interval prolongation (QTc > 0.44s). However, data obtained in genotyped patients showed that resting QTc measurement alone may be inaccurate for ascertaining the phenotype. The aim of this study was to evaluate the diagnostic performance of QT interval rate-dependence in untreated chromosome 11-linked patients.

Domaines: Cardiologie et système cardiovasculaire

Nathalie Neyroud, P. Maison-Blanche, I Denjoy, S. Chevret, C Donger, et al.. Diagnostic performance of QT interval variables from 24-h electrocardiography in the long QT syndrome. European Heart Journal Supplements, 1998, 19 (1), pp.158-165. ⟨10.1053/euhj.1997.0730⟩. ⟨hal-02330552⟩