Criteria for short QT interval based on a new QT-heart rate adjustment formula

BACKGROUND: A short QT interval, within which an increased risk for atrial fibrillation and/or fatal cardiac arrhythmias occurs, has been difficult to define. METHODS: The lower percentiles of a new QTc formula were determined, using a precise mathematical fitting of the QT-heart rate relationship f...

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Detalles Bibliográficos
Autor principal: Rabkin, Simon W.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2017
Materias:
Rapid Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5634756/
https://www.ncbi.nlm.nih.gov/pubmed/29021866
http://dx.doi.org/10.1016/j.joa.2017.04.004
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author Rabkin, Simon W.
author_facet Rabkin, Simon W.
author_sort Rabkin, Simon W.
collection PubMed
description BACKGROUND: A short QT interval, within which an increased risk for atrial fibrillation and/or fatal cardiac arrhythmias occurs, has been difficult to define. METHODS: The lower percentiles of a new QTc formula were determined, using a precise mathematical fitting of the QT-heart rate relationship from the ECGs of 13,600 individuals from the NHANES II and III surveys. RESULTS: The QTc interval for persons in the lower fifth percentile, second (2.5th) percentile and first percentile, were calculated. CONCLUSIONS: Based on the new spline formula, a short QTc is defined at the first percentile, and is less than 380 ms in both men and women.
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spelling pubmed-56347562017-10-11 Criteria for short QT interval based on a new QT-heart rate adjustment formula Rabkin, Simon W. J Arrhythm Rapid Communication BACKGROUND: A short QT interval, within which an increased risk for atrial fibrillation and/or fatal cardiac arrhythmias occurs, has been difficult to define. METHODS: The lower percentiles of a new QTc formula were determined, using a precise mathematical fitting of the QT-heart rate relationship from the ECGs of 13,600 individuals from the NHANES II and III surveys. RESULTS: The QTc interval for persons in the lower fifth percentile, second (2.5th) percentile and first percentile, were calculated. CONCLUSIONS: Based on the new spline formula, a short QTc is defined at the first percentile, and is less than 380 ms in both men and women. Elsevier 2017-10 2017-05-06 /pmc/articles/PMC5634756/ /pubmed/29021866 http://dx.doi.org/10.1016/j.joa.2017.04.004 Text en © 2017 Japanese Heart Rhythm Society. Published by Elsevier B.V. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Rapid Communication
Rabkin, Simon W.
Criteria for short QT interval based on a new QT-heart rate adjustment formula
title Criteria for short QT interval based on a new QT-heart rate adjustment formula
title_full Criteria for short QT interval based on a new QT-heart rate adjustment formula
title_fullStr Criteria for short QT interval based on a new QT-heart rate adjustment formula
title_full_unstemmed Criteria for short QT interval based on a new QT-heart rate adjustment formula
title_short Criteria for short QT interval based on a new QT-heart rate adjustment formula
title_sort criteria for short qt interval based on a new qt-heart rate adjustment formula
topic Rapid Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5634756/
https://www.ncbi.nlm.nih.gov/pubmed/29021866
http://dx.doi.org/10.1016/j.joa.2017.04.004
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