Revista médica de Chile
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Revista médica de Chile · Dec 2019
[Arteria coronaria única y cardiopatía coronaria: origen anómalo de la arteria coronaria derecha desde la descendente anterior. Casos clínicosAnomalous origin of the right coronary artery in the middle third of the anterior descending artery. Report of two cases].
The anomalous origin of the coronary arteries is uncommon and the origin of the right coronary artery from the middle third of the anterior descending artery is a finding of extreme rarity. We report two patients with coronary atherosclerotic disease and with an acute coronary syndrome, in whom a single left coronary artery was found. The clinical and angiographic characteristics and the treatment of these patients are described.
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Revista médica de Chile · Dec 2019
[Reserva cognitiva y demencias: Limitaciones del efecto protector en el envejecimiento y el deterioro cognitivoLimited protective effects of cognitive reserve on the progression of cognitive impairment].
Aging constitutes a series of physical, physiological and cognitive changes, affecting independence in the activities of daily living. During this stage, neurodegenerative diseases and cognitive impairment are common. ⋯ The objective of this systematic review is to identify evidence where high cognitive reserve does not limit the effects of cognitive impairment. Results indicate that the protective effect of cognitive reserve occurs only in the presence of minimal cognitive impairment, but not at later stages.