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New York Heart Association Functional Classification

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The New York Heart Association Functional Classification is:[1][2]

  • Class I. "Patients with cardiac disease but without resulting limitation of physical activity. Ordinary physical activity does not cause undue fatigue, palpitation, dyspnea, or anginal pain."
  • Class II. "Patients with cardiac disease resulting in slight limitation of physical activity. They are comfortable at rest. Ordinary physical activity results in fatigue, palpitation, dyspnea, or anginal pain."
  • Class III. "Patients with cardiac disease resulting in marked limitation of physical activity. They are comfortable at rest. Less than ordinary activity causes fatigue, palpitation, dyspnea, or anginal pain."
  • Class IV. "Patients with cardiac disease resulting in inability to carry on any physical activity without discomfort. Symptoms of heart failure or the anginal syndrome may be present even at rest. If any physical activity is undertaken, discomfort is increased."

References

  1. The Criteria Committee of the New York Heart Association (1928). Diseases of the Heart and Blood Vessels: Nomenclature and Criteria for Diagnosis, 6th edition. Boston, Mass: Little Brown. LCC RC683 .N37. 
  2. 1994 Revisions to Classification of Functional Capacity and Objective Assessment of Patients With Diseases of the Heart. Retrieved on 2008-01-22.
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