Value of New York Heart Association classification, radionuclide ventriculography, and cardiopulmonary exercise tests for selection of patients for congestive heart failure studies
Autor: | Auke van Bruggen, Bert A. Piers, Kong I. Lie, Henk Beekhuis, C.Erik E Kuntze, Peter H.J.M. Dunselman, Harry Wesseling, A. H. J. Scaf |
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Rok vydání: | 1988 |
Předmět: |
Adult
Male medicine.medical_specialty Hemodynamics Radionuclide ventriculography New York Heart Association Classification Internal medicine medicine Humans cardiovascular diseases Radionuclide Imaging Aerobic capacity Aged Sodium Pertechnetate Tc 99m Heart Failure Clinical Trials as Topic Ejection fraction business.industry VO2 max Cardiopulmonary exercise Middle Aged medicine.disease Evaluation Studies as Topic Heart failure Exercise Test cardiovascular system Cardiology Physical therapy Female Cardiology and Cardiovascular Medicine business |
Zdroj: | American Heart Journal. 116:1475-1482 |
ISSN: | 0002-8703 |
Popis: | To evaluate the necessity of an objective cardiopulmonary exercise test in the selection procedure of patients for heart failure studies, 50 patients with congestive heart failure New York Heart Association (NYHA) class II and III and a left ventricular ejection fraction less than 40% were subjected to a cardiopulmonary exercise test. The results of the exercise test were compared with the independent clinical estimation of NYHA class and data of measurements obtained at rest. The NYHA classification separated the patients with a mild to moderate impairment of aerobic capacity from patients with a moderate to severe impairment of aerobic capacity very well, but 32% of the NYHA class II patients had a near normal aerobic capacity, and 29% of the NYHA class III patients had a very severe impairment of aerobic capacity, more compatible with NYHA class IV. Only data from exercise measurements showed differences between groups. The determination of maximal aerobic capacity for an objective assessment of patients' performance at exercise is necessary for a proper selection procedure of patients for heart failure studies. |
Databáze: | OpenAIRE |
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