Electrocardiogram and left atrial abnormality: Design of an observational study to clarify diagnostic criteria.

Autor: Lacalzada-Almeida J; Department of Cardiology, Hospital Universitario de Canarias, Tenerife, Spain., Izquierdo-Gómez MM; Department of Cardiology, Hospital Universitario de Canarias, Tenerife, Spain., Laynez-Cerdeña I; Department of Cardiology, Hospital Universitario de Canarias, Tenerife, Spain., García-Niebla J; Valle del Golfo Health Center, Servicio Canario de Salud, El Hierro, Spain., Bruña V; Department of Cardiology, Hospital General Universitario Gregorio Marañón, CIBERCV, Madrid, Spain., Bayés de Luna A; Fundació Investigació Cardiovascular, ICCC, Barcelona, Spain., Martínez-Sellés M; Department of Cardiology, Hospital General Universitario Gregorio Marañón, CIBERCV, Madrid, Spain.; Universidad Europea, Universidad Complutense Madrid, Madrid, Spain.
Jazyk: angličtina
Zdroj: Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc [Ann Noninvasive Electrocardiol] 2020 Nov; Vol. 25 (6), pp. e12770. Date of Electronic Publication: 2020 May 29.
DOI: 10.1111/anec.12770
Abstrakt: Background: The criteria applied for diagnosis of left atrial (LA) abnormality using electrocardiogram (ECG) have high specificity but low sensitivity. In fact, some authors have suggested classifying P-wave anomalies associated with LA abnormality and interatrial block as "atrial abnormalities." The most widely known ECG criteria for LA abnormality include P-wave duration, morphology and voltage of P wave in inferior leads, presence of P-wave terminal force in V 1 (PtfV 1 ), and P-wave axis and area. PtfV 1 has also been reported to vary according to misplacement of the V 1 and V 2 electrodes.
Methods: The objective of this observational cohort study is to determine the degree of correlation between ECG criteria for LA abnormality and left atrium volume and functionality, as determined by speckle tracking echocardiography. The study also aims to investigate the correlation between these echocardiographic parameters and PtfV 1 value by placing the V 1 and V 2 electrodes in the second, third, and fourth intercostal spaces.
Results and Conclusions: Our results could help to clarify whether the decrease in left atrial deformity, which is currently considered a surrogate target of fibrosis, correlates better with ECG criteria for LA abnormality than atrial volumes.
(© 2020 The Authors. Annals of Noninvasive Electrocardiology published by Wiley Periodicals LLC.)
Databáze: MEDLINE
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