Mechanism of the attenuated peak heart rate response to exercise after orthotopic cardiac transplantation
نویسندگان
چکیده
منابع مشابه
Mechanism of the attenuated peak heart rate response to exercise after orthotopic cardiac transplantation.
The mechanism responsible for attenuation of the peak heart rate response to exercise in patients after cardiac transplantation was studied. Because the donor heart is believed to be surgically denervated, the peak heart rate response to exercise is dependent primarily on 1) an increase in the circulating levels of the catecholamines norepinephrine and epinephrine at peak exercise, and 2) the e...
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We have tested the feasibility and effectiveness of a 2 year (average 16 +/- 7 months) walk/jog exercise program on 36 male orthotopic cardiac transplant patients (21 to 57 years old) seen initially 2 to 23 months after surgery. Comparison of initial exercise test results with those in 45 age-matched normal men showed the patients to have a lesser lean body mass (56 +/- 7 vs 63 +/- 8 kg, p less...
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BACKGROUND A blunted heart rate recovery (HRR) from peak exercise is associated with adverse outcome in adults with ischemic heart disease. We assessed HRR after pediatric heart transplantation (HTx) and its prognostic use. METHODS AND RESULTS Between 2004 and 2010 we performed 360 maximal exercise tests (median, 2 tests/patient; range, 1-7) in 128 children (66 men; age at test, 14 ± 3 years)...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 1989
ISSN: 0735-1097
DOI: 10.1016/0735-1097(89)90183-6