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Memorias del Instituto de Investigaciones en Ciencias de la Salud
versión On-line ISSN 1812-9528
Resumen
FALCON-FLEYTAS, Rocío del Pilar; SCAVENIUS-AGUILERA, Karina Elizabeth; MEZA, Alfredo J. y CENTURION, Osmar Antonio. Advanced interatrial block in patients with systemic arterial hypertension and atrial fibrillation. Mem. Inst. Investig. Cienc. Salud [online]. 2020, vol.18, n.2, pp.74-85. ISSN 1812-9528. https://doi.org/10.18004/mem.iics/1812-9528/2020.018.02.74.
Systemic arterial hypertension (AHT) continues to be a risk factor of undoubted importance in the process of development of cardiovascular disease and atrial fibrillation (AF). AF is the most frequently detected sustained arrhythmia. For this reason, it is essential to give the necessary emphasis to the prevention and early diagnosis of diseases with great social, medical and economic impact on public health. In this context, it is important to detect the subclinical stage disease and identify factors that determine with great reliability the appearance and development of a disease. The electrocardiogram (ECG) is a safe, inexpensive auxiliary diagnostic method, easy to use and accessible in practically all medical centers, and which serves to detect various nosological entities. The interatrial block (IAB) diagnosed by the ECG occurs due to a slowing down of conduction between the right and left atria due to a delay in the conduction of impulses through the Bachmann pathway. The anatomical substrate for IAB is produced by atrial remodeling due to fibrosis, inducing interatrial dyssynchrony. IAB is present in up to 59% of older patients in the general population and was directly associated with AHT and AF. In addition, advanced IAB was associated with a 3-fold increased risk of new-onset AF and ischemic stroke. Therefore, it is essential to carry out additional prospective research to determine the optimal strategies in the adequate therapeutic management of these patients.
Palabras clave : interatrial block; atrial fibrillation; arterial hypertension.