Nocturnal myocardial ischemic events and sleep-disordered breathing in patients with coronary artery disease / 老年心脏病学杂志(英文版)
Journal of Geriatric Cardiology
;
(12): 90-94, 2004.
Artigo
em Chinês
| WPRIM
| ID: wpr-472251
ABSTRACT
Objective To investigate the occurrence of nocturnal myocardial ischemia and its relationship with sleep-disordered breathing (apneas and oxygen desaturations) in patients with angina pectoris undergoing coronary angiography.Methods Eighty-two men and 14 women referred for consideration of coronary intervention were randomly selected. Observation by an overnight sleep monitor and Holter recording were performed to study sleep-disordered breathing (oxyhemoglobin desaturations≥4% and apnea-hypopneas),heart rates, and ST-segment depressions (≥ 1mm, ≥1 min).Results Nocturnal ST-segment depressions occurred in 37 % of the patients. ST-segment depression within 2 min after an apnea-hypopnea or desaturation occurred in 17% of the patients. This temporal association was seen in 21% of the patients with nocturnal ST-segment depressions, more frequently in men (P<0.05) and more frequently in those with severe disordered breathing (P<0.05).Most of these ST-segment depressions were preceded by a series of breathing events repeated apnea-hypopneas or desaturations or both in 73% of the patients. Conclusions Episodes of nocturnal myocardial ischemia are common in patients with angina pectoris. A temporal relationship between sleep-disordered breathing and myocardial ischemia was present in some of our patients, and occurs more frequently in men and in those with severely disordered breathing. (J Geriatr Cardiol 2004;1(2)90-94.)
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DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Journal of Geriatric Cardiology
Ano de publicação:
2004
Tipo de documento:
Artigo
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