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BVS Medicinas Tradicionales, Complementarias, e Integrativas en las Américas - MTCI

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Low prevalence of atrial fibrillation in Amerindians: a population-based study in frequent fish consumers living in rural coastal Ecuador (The Atahualpa Project).

Del Brutto, Oscar H; Costa, Aldo F; Cano, José A; Peñaherrera, Ernesto; Plaza, Karin J; Ledesma, Ernesto A; Tettamanti, Daniel; Zambrano, Mauricio.
Aging Clin Exp Res ; 30(5): 539-542, 2018 May.
Artículo en Inglés | MEDLINE | ID: mdl-28762211


Information on the burden of atrial fibrillation (AF) in rural areas of developing countries is limited. Here, we aimed to assess AF prevalence in community-dwelling older adults living in rural Ecuador.


Atahualpa residents aged ≥60 years (mean age 70.5 ± 8.1 years) underwent 24-h Holter monitoring. Participants belong to the Amerindian ethnic group. The mean height in the study population was 147.9 ± 8.9 cm. Oily fish was a major source of food (mean intake 8 ± 4 servings/week).


Seven of 298 participants (2.3%) had AF. Persons with AF were older than those without (p = 0.051), but there were no differences in cardiovascular risk factors across groups. None of the seven AF cases had been detected in routine 12-lead ECGs taken at enrollment.


Prevalence of AF in older Amerindians living in rural Ecuador is low. Both, racially-determined short stature and frequent dietary oily fish intake might explain the low prevalence of AF in this rural setting.