New York Heart Association classification

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New York Heart As·so·ci·a·tion clas·si·fi·ca·tion

a functional classification to assess cardiovascular disability. Class I: patients with cardiac disease without limitation of physical activity. Ordinary activity does not cause symptoms. Class II: patients with cardiac disease with slight limitation of activity; comfortable at rest. Ordinary physical activity results in fatigue, palpitation, dyspnea or angina. Class III: patients with cardiac disease producing marked limitation of activity: comfortable at rest. Less than ordinary physical activity causes symptoms. Class IV: patients with cardiac disease resulting in inability to carry on any physical activity without discomfort. Symptoms may be present even at rest.

New York Heart Association classification

A functional classification of cardiac failure, used to stratify Pts according to severity of disease and the need for–and type of–therapeutic intervention
New York Heart Association–classification
 I Asymptomatic heart disease
 II Comfortable at rest; symptomatic with normal activity
III Comfortable at rest; symptomatic with < normal activity
IV Symptomatic at rest—Criteria Committee, NYHA, Inc: Diseases of Heart & Blood Vessels, 6th ed, Little Brown, Boston 1964

New York Heart As·so·ci·a·tion clas·si·fi·ca·tion

(nū yōrk hahrt ă-sō'sē-ā'shŭn klas'i-fi-kā'shŭn)
A functional classification to assess cardiovascular disability. Class I: cardiac disease without limitation of physical activity. Ordinary activity does not cause symptoms. Class II: cardiac disease with slight limitation of activity; comfortable at rest. Ordinary physical activity results in fatigue, palpitations, dyspnea or angina. Class III: cardiac disease producing marked limitation of activity: comfortable at rest. Less than ordinary physical activity causes symptoms. Class IV: cardiac disease resulting in inability to carry on any physical activity without discomfort. Symptoms may be present even at rest.
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