Pöyhönen L. Supine and sitting maximal workload difference and response to long-term enalapril therapy in congestive heart failure.
CLINICAL PHYSIOLOGY (OXFORD, ENGLAND) 1985;
5:173-8. [PMID:
2986901 DOI:
10.1111/j.1475-097x.1985.tb00593.x]
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Abstract
Maximal workloads in supine and sitting bicycle stress tests were compared in 12 patients with congestive heart failure during long-term therapy with the vasodilator enalapril. The response to the therapy was observed with the supine and sitting bicycle stress tests and gated equilibrium ventriculography. The maximal workload was 68 W in the supine position and 84 W in the sitting position; the mean difference was 15 W. The difference was highly significant (P less than 0.001). Both the supine and sitting workloads were significantly higher (P less than 0.02 and P less than 0.05) in the enalapril group than in the placebo group. The findings in the gated equilibrium ventriculography were not significantly different between the two groups.
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