Chronotropic Incompetence in Diabetic Elderly on Echocardiography
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چکیده
منابع مشابه
Chronotropic Incompetence in Diabetic Elderly on Echocardiography
For practical purpose, most studies define CI as the incapacity to reach 80% of heart rate (HR) reserve according to the formula: HR reserve = (peak HR – resting HR) / (maximum HR – resting HR) x 100. It has been suggested that the definition of CI should be assessed when the diagnostic method uses positive inotropic drugs to induce HR increase. It is necessary to better understand which practi...
متن کاملPrognostic value of chronotropic incompetence in elderly patients undergoing exercise echocardiography.
BACKGROUND Chronotropic incompetence (CI), defined as failure to achieve less than 80% of age-expected heart rate, is a predictor of mortality and adverse cardiovascular events and may confer a worse prognosis in elderly diabetic individuals. OBJECTIVE To evaluate the prognostic value of chronotropic incompetence (CI) in elderly diabetic patients considering endpoints with acute myocardial in...
متن کاملChronotropic incompetence in heart failure.
The relationship between heart rate (HR) during exercise and exercise capacity in patients with heart failure due to left ventricular systolic dysfunction remains unclear. The accepted diagnostic criterion for chronotropic incompetence (CI), a maximum agepredicted heart rate (MA-PHR) 85%, is seen in 50% of patients with severe heart failure on contemporary medical therapy (1). Whether the lesse...
متن کاملChronotropic incompetence on dobutamine stress echocardiography in candidates for a liver transplant.
OBJECTIVES We evaluated dobutamine stress echocardiography as an initial screening test for a cardiac evaluation before a liver transplant. MATERIALS AND METHODS We retrospectively examined 111 liver transplant candidates who had undergone previous cardiac evaluation; 30 of whom had undergone a liver transplant. RESULTS Eighty patients (72.1%) completed a dobutamine stress echocardiography ...
متن کاملChronotropic incompetence and a higher frequency of myocardial ischemia in exercise echocardiography
BACKGROUND Exercise echocardiography (EE) is an established method to diagnose coronary artery disease (CAD). Chronotropic incompetence (CI) during the EE may be a marker of myocardial ischemia. The purpose of this investigation was to evaluate the additive value of CI during EE in CAD diagnosis. METHODS Between 2000 and 2006, 4042 patients (1900 men with a mean age of 56 +/- 11 years) were e...
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ژورنال
عنوان ژورنال: Arquivos Brasileiros de Cardiologia
سال: 2014
ISSN: 0066-782X
DOI: 10.5935/abc.20140007