Circadian variation in ischemic threshold. A mechanism underlying the circadian variation in ischemic events.
نویسندگان
چکیده
منابع مشابه
Circadian variation in ischemic threshold. A mechanism underlying the circadian variation in ischemic events.
BACKGROUND There is a circadian pattern in the occurrence of cardiac events in patients with coronary artery disease. Whether changes in coronary vascular tone contribute to these phenomena is unknown. We measured the ischemic threshold, defined as either the heart rate or rate-pressure product at 1-mm ST segment depression during treadmill exercise and used it as an index of the lowest coronar...
متن کاملA Mechanism Underlying the Circadian Variation in Ischemic Events
Background. There is a circadian pattern in the occurrence of cardiac events in patients with coronary artery disease. Whether changes in coronary vascular tone contribute to these phenomena is unknown. We measured the ischemic threshold, defined as either the heart rate or rate-pressure product at 1-mm ST segment depression during treadmill exercise and used it as an index of the lowest corona...
متن کاملIschemic Threshold A Mechanism Underlying the Circadian Variation in Ischemic Events
Background. There is a circadian pattern in the occurrence of cardiac events in patients with coronary artery disease. Whether changes in coronary vascular tone contribute to these phenomena is unknown. We measured the ischemic threshold, defined as either the heart rate or rate-pressure product at 1-mm ST segment depression during treadmill exercise and used it as an index of the lowest corona...
متن کاملCircadian variation in ischemic stroke subtypes.
BACKGROUND AND PURPOSE While previous studies suggest that the peak time period for the occurrence of ischemic stroke is in the mid- to late-morning hours, detailed information pertaining to circadian variations among the various stroke subtypes has been limited. The purpose of our study was to define the circadian patterns of symptom onset in an acute stroke trial with an established system fo...
متن کاملCircadian variation in acute ischemic stroke: a hospital-based study.
BACKGROUND AND PURPOSE We investigated circadian rhythm in ischemic stroke onset and its subtypes, differentiating between first-ever stroke and recurrent stroke. METHODS A consecutive series of 1223 patients with ischemic stroke was admitted at 2 reference hospitals; the time of onset of symptoms was obtained, differentiating between onset while asleep and awake. We compared circadian rhythm...
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ژورنال
عنوان ژورنال: Circulation
سال: 1992
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.86.1.22