981-48 Washout Rate of Cardiac 123 I-Metaiodobenzylguanidine Reflects Cardiac Chronotropic Reserve and Exercise Capacity In Patients with Chronic Heart Failure
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 کاملEffect of Cardiac Rehabilitation on Heart Rate and Functional Capacity in Patients After Myocardial Infarction
Objectives: The primary purpose of this study was to determine the methods and means of prevention and treatment of coronary artery disease. In this study, we used a new regimen on heart rate and functional capacity of patients after myocardial infarction. This study also determines the effect of a new regimen on these factors. Methods: The cross sectional study was designed to assess the clin...
متن کاملComparison of the prognostic value of cardiac iodine-123 metaiodobenzylguanidine imaging and heart rate variability in patients with chronic heart failure: a prospective study.
OBJECTIVES We sought to prospectively compare the prognostic value of cardiac iodine-123 (I-123) metaiodobenzylguanidine (MIBG) imaging with that of heart rate variability (HRV) in patients with mild-to-moderate chronic heart failure (HF). BACKGROUND Cardiac I-123 MIBG imaging, which reflects cardiac adrenergic nerve activity, provides prognostic information on chronic HF patients. Reduced HR...
متن کاملRelationship between impaired chronotropic response, cardiac output during exercise, and exercise tolerance in patients with chronic heart failure.
The present study was undertaken to investigate the relationship between the extent of impaired chronotropic response and cardiac output during exercise, and exercise tolerance in patients with chronic heart failure. The subjects consisted of 24 patients (mean 60.1 +/- 14.0 years) who had mild chronotropic incompetence. Cardiopulmonary exercise testing was performed in all patients, and heart r...
متن کاملI-123 metaiodobenzylguanidine cardiac scintigraphy in patients with an implanted permanent pacemaker.
T1 scintigraphic abnormalities have been reported in patients with an implanted permanent pacemaker, but little is known about the MIBG scintigraphic findings in such patients. This study was performed to assess the MIBG scintigraphic findings in patients with an implanted permanent pacemaker, and to test the hypothesis that imaging characteristics of MIBG scintigraphy differ according to its m...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 1995
ISSN: 0735-1097
DOI: 10.1016/0735-1097(95)92560-r