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Mechanisms of respiratory sinus arrhythmia in patients with mild heart failure.

Abstract:

The high-frequency (HF) component of the heart rate variability (HRV) is regarded as an index of cardiac vagal responsiveness. However, when vagal tone is decreased, nonneural mechanisms could account for a significant proportion of the HF component. To test this hypothesis, we examined the HRV spectral power in 20 patients with mild chronic heart failure (CHF) and 11 controls before and during ganglion blockade with trimethaphan camsylate (3-6 mg/min iv). A small HF component was still prese...

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Publication status:
Published

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Institution:
University of Oxford
Division:
MSD
Department:
RDM
Sub department:
RDM Cardiovascular Medicine
Role:
Author
Journal:
American journal of physiology. Heart and circulatory physiology
Volume:
280
Issue:
1
Pages:
H125-H131
Publication date:
2001-01-01
EISSN:
1522-1539
ISSN:
0363-6135
Source identifiers:
105318
Language:
English
Keywords:
Pubs id:
pubs:105318
UUID:
uuid:1d73ca0f-bd0e-4fe3-b6f1-befc5fa635c1
Local pid:
pubs:105318
Deposit date:
2012-12-19

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