Increased incidence of interatrial block in younger adults with cryptogenic stroke and patent foramen ovale.

Cerebrovascular Diseases Extra
P E CotterM Belham

Abstract

Stroke is often unexplained in younger adults, although it is often associated with a patent foramen ovale (PFO). The reason for the association is not fully explained, and mechanisms other than paradoxical embolism may be involved. Young stroke patients with PFO have more atrial vulnerability than those without PFO. It is plausible that stretching of the interatrial septum may disrupt the interatrial conduction pathways causing interatrial block (IAB). IAB is associated with atrial fibrillation, dysfunctional left atria and stroke. Electrocardiogram (ECG) characteristics of prospectively recruited young patients (≤55 years of age) with unexplained stroke (TOAST and A-S-C-O) were compared with control data. All stroke cases underwent bubble contrast transthoracic and transoesophageal echography. IAB was defined as a P-wave duration of ≥110 ms. ECG data were converted to electronic format and analysed in a blind manner. Fifty-five patients and 23 datasets were analysed. Patients with unexplained stroke had longer P-wave duration (p = 0.013) and a greater prevalence of IAB (p = 0.02) than healthy controls. Case status was an independent predictor of P-wave duration in a significant multivariate model. There was a significant incr...Continue Reading

Citations

Jul 15, 2015·International Journal of Cardiology·Jani PirinenMika Lehto
Mar 1, 2014·Stroke; a Journal of Cerebral Circulation·Oh Young BangJong S Kim
Feb 5, 2019·Expert Review of Cardiovascular Therapy·Leonardo SeoaneDiego Conde
Mar 30, 2017·World Journal of Clinical Cases·Adrià ArboixMaría José Sánchez
Aug 22, 2018·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Nicolas JohnerDipen C Shah
Jul 17, 2020·Frontiers in Neurology·Stefanos G Ioannidis, Panayiotis D Mitsias
Jul 22, 2019·The International Journal of Cardiovascular Imaging·Gianluca RigatelliLoris Roncon
May 29, 2018·Journal of the Neurological Sciences·Chan-Hyuk LeeSeul-Ki Jeong
Apr 15, 2021·Monaldi Archives for Chest Disease = Archivio Monaldi Per Le Malattie Del Torace·Athanassios Antonopoulos, Laila Fiorani

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