Chronotropic Incompetency During Exercise Testing
نویسندگان
چکیده
منابع مشابه
Relationship between chronotropic incompetence and β-blockers based on changes in chronotropic response during cardiopulmonary exercise testing☆
BACKGROUND Chronotropic incompetence (CI), an attenuated heart rate (HR) response to exercise, is common in patients with cardiovascular disease. The aim of this study was to assess changes in the chronotropic response (CR) during cardiopulmonary exercise testing (CPET) in patients undergoing cardiac rehabilitation and investigate the effects of β-blockers. METHODS Patients undergoing cardiac...
متن کامل[Effects of cimetidine on chronotropic response to cardiopulmonary exercise testing].
OBJECTIVE To test the hypothesis that the administration of cimetidine will modify the chronotropic response to exercise testing through a random clinical trial. METHODS The study selected 24 eligible healthy subjects, ages between 20 and 68 years, not athletes, who agreed to undergo cardiopulmonary exercise testing after the administration of placebo and 400 mg of cimetidine twice a day for ...
متن کامل[Cardiac rupture during exercise testing].
Cardiac rupture during stress testing is uncommon and rarely reported, with less than ten cases described in the scientific literature. We present a patient with left ventricular free wall rupture one week after a nontransmural acute myocardial infarction (AMI), when undergoing conventional stress testing. A 70-year-old man, ex-smoker, with no other cardiovascular risk factors, was admitted in ...
متن کاملImpaired Chronotropic Response to Exercise Stress Testing in Patients With Diabetes Predicts Future Cardiovascular Events
OBJECTIVES To assess the association between impaired chronotropic response (CR) and adverse events among patients with diabetes referred for exercise treadmill testing (ETT). RESEARCH DESIGN AND METHODS Impaired CR was defined as achievement of <80% of a patient's heart rate reserve. We used multivariable Cox proportional hazards regression to assess the independent association between impai...
متن کاملImpaired chronotropic response to exercise stress testing as a predictor of mortality.
CONTEXT Chronotropic incompetence, an attenuated heart rate response to exercise, is a predictor of all-cause mortality in healthy populations. This association may be independent of exercise-induced myocardial perfusion defects. OBJECTIVE To examine the prognostic significance of chronotropic incompetence in a low-risk cohort of patients referred for treadmill stress testing with thallium im...
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ژورنال
عنوان ژورنال: JACC: Clinical Electrophysiology
سال: 2016
ISSN: 2405-500X
DOI: 10.1016/j.jacep.2016.05.003