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. 1986 Jan;55(1):75–80. doi: 10.1136/hrt.55.1.75

Abnormalities of the peripheral circulation and respiratory function in patients with severe heart failure.

A J Cowley, K Stainer, J M Rowley, J R Hampton
PMCID: PMC1232071  PMID: 3947485

Abstract

To investigate the peripheral circulatory and respiratory abnormalities which occur in patients with heart failure, forearm and calf blood flow were measured before and after upright exercise, and respiratory gas exchange was measured during exercise in 26 patients with severe heart failure. Compared with a group of normal subjects the patients had reduced limb blood flow at rest and the response of limb blood flow to upright exercise was also abnormal. The increase in calf blood flow after exercise and the reduction in blood flow in the non-exercising forearm were both smaller in patients than in controls. There was a significant correlation between the maximum exercise duration of the patients and calf blood flow both after exercise and at rest. Compared with another group of control subjects the patients had a higher minute ventilation during exercise and a reduced oxygen consumption. The respiratory exchange ratio during exercise was also higher in patients than in controls. This suggests that there is early onset of anaerobic metabolism during exercise in patients with severe heart failure.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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