title: Bayés syndrome and acute cardioembolic ischemic stroke.
abstract: Bayés syndrome is an under-recognized clinical condition characterized by advanced interatrial block. Bayés syndrome is a subclinical disease that manifests electrocardiographically as a prolongedPwave duration > 120 ms with biphasic morphology ± in the inferior leads. The clinical relevance of Bayés syndrome lies in the fact that is a clear arrhythmological syndrome and has a strong association with supraventricular arrhythmias, particularly atypical atrial flutter and atrial fibrillation. Likewise, Bayés syndrome has been recently identified as a novel risk factor for non-lacunar cardioembolic ischemic stroke and vascular dementia. Advanced interatrial block can be a risk for embolic stroke due to its known sequelae of left atrial dilation, left atrial electromechanical dysfunction or atrial tachyarrhythmia (paroxysmal or persistent atrial fibrillation), conditions predisposing to thromboembolism. Bayés syndrome may be responsible for some of the unexplained ischemic strokes and shall be considered and investigated as a possible cause for cryptogenetic stroke. In summary, Bayés syndrome is a poorly recognized cardiac rhythm disorder with important cardiologic and neurologic implications.
authors.affiliation: Adrià Arboix, Division of Cerebrovascular, Universitat de Barcelona, 08029 Barcelona, Spain.
authors.forename: Adrià
authors.initials: A
authors.lastname: Arboix
authors.affiliation: Adrià Arboix, Division of Cerebrovascular, Universitat de Barcelona, 08029 Barcelona, Spain.
authors.forename: Lucía
authors.initials: L
authors.lastname: Martí
authors.affiliation: Adrià Arboix, Division of Cerebrovascular, Universitat de Barcelona, 08029 Barcelona, Spain.
authors.forename: Sebastien
authors.initials: S
authors.lastname: Dorison
authors.affiliation: Adrià Arboix, Division of Cerebrovascular, Universitat de Barcelona, 08029 Barcelona, Spain.
authors.forename: María José
authors.initials: MJ
authors.lastname: Sánchez
keywords: Bayés syndrome; Cardioembolic stroke; Cardiovascular risk factors; Electrophysiological processes; Heart conduction system