Abnormal heart rate responses during exercise in patients with Chagas' disease.

Abstract:

:Normal subjects and cardiac chagasic patients without previous history of congestive failure or actual evidences of cardiac decompensation were exercised on a treadmill or a bicycle ergometer. Patients with less than the expected increase in heart rate during exercise were found to exhibit also an abnormal heart rate response to pharmacologic blockade and acute alterations in systemic vascular resistance. These results are in agreement with previous observations showing neuronal degeneration and autonomic impairment in chronic Chagas' heart disease.

journal_name

Cardiology

journal_title

Cardiology

authors

Gallo L Jr,Neto JA,Manço JC,Rassi A,Amorim DS

doi

10.1159/000169713

subject

Has Abstract

pub_date

1975-01-01 00:00:00

pages

147-62

issue

3

eissn

0008-6312

issn

1421-9751

journal_volume

60

pub_type

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