Key result
Mental stress links to out-of-hospital myocardial ischemia, often presenting silently at low heart rates.
Why the study?
Out-of-hospital myocardial ischemia exhibits features not evident during controlled exercise testing, suggesting behavioral factors may contribute to its occurrence.
Answers are grounded in this paper and cite their sources.
Ambulatory monitoring may better detect daily-life ischemia than exercise testing alone; leaves open whether targeting silent episodes alters outcomes.
Behavior and Myocardial Ischemia. Recent ambulatory electrocardiography studies reveal that myocardial ischemia out‐of‐hospital exhibits features that may not be evident during controlled exercise testing. Specifically, out‐of‐hospital ischemia: (1) is more frequently asymptomatic or silent; (2) occurs during a wide variety of mental, as well as physical, activities; (3) is triggered at relatively low heart rate elevations compared to exercise; (4) exhibits a circadian rhythm; and (5) exhibits variability over time. This article reviews recent field and laboratory research suggesting that behavioral factors, including mental stress, may contribute to the typical features of myocardial ischemia out‐of‐hospital.
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Krantz et al. (1991) conducted a review in Myocardial Ischemia. Behavioral factors (including mental stress) was evaluated on Myocardial ischemia out-of-hospital. Behavioral factors, including mental stress, may contribute to out-of-hospital myocardial ischemia, which is frequently silent and triggered at relatively low heart rate elevations.
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