Rate adaptive pacing in patients with chronotropic incompetence - Diagnostic
نویسندگان
چکیده
منابع مشابه
Rate responsive pacing using cardiac resynchronization therapy in patients with chronotropic incompetence and chronic heart failure.
AIMS Chronotropic incompetence (CI) is a common finding in patients with advanced chronic heart failure (CHF) and is associated with a worse functional capacity. Whether rate responsive pacing with cardiac resynchronization therapy (CRT) would acutely improve exercise performance in patients with advanced CHF and severe CI (<70% age-predicted maximum heart rate) is unknown. METHODS AND RESULT...
متن کاملImpaired heart rate recovery and chronotropic incompetence in patients with heart failure with preserved ejection fraction.
BACKGROUND This study assessed the chronotropic response to exercise and heart rate (HR) recovery after exercise in a carefully phenotyped group of patients with heart failure with preserved left ventricular ejection fraction (HfpEF) and a control group of similar age and gender distribution. METHODS AND RESULTS We studied 41 patients with HfpEF, 41 healthy controls, and 16 hypertensive contr...
متن کاملCan chronotropic incompetence predict life-threatening ventricular arrhythmias in patients with stable ischemic heart disease?
Background: Chronotropic incompetence has prognostic value of all-cause and cardiovascular mortality in both patients with asymptomatic and symptomatic ischemic heart disease (IHD), regardless of traditional risk factors. The aim of this study was to investigate the relationship between chronotropic response during exercise test and the development of ventricular arrhythmias. Methods: 153 pati...
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 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...
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ژورنال
عنوان ژورنال: DMW - Deutsche Medizinische Wochenschrift
سال: 2002
ISSN: 0012-0472,1439-4413
DOI: 10.1055/s-2002-32749