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	Nowojorkskie Towarzystwo Kardiologiczne (NYHA) - Klasyfikacja czynnościowa	Wskaźnik Aktywności Fizycznej Duke (DASI)
Dziedzina	Kardiologia	Kardiologia
Rodzina	Process / pipeline	Process / pipeline
Rok powstania	1994	1989
Twórca	New York Heart Association	Mark A. Hlatky
Typ	Ordinal clinician-assessment classification system	Self-report questionnaire
Źródło pierwotne	The Criteria Committee of the New York Heart Association. (1994). Nomenclature and Criteria for Diagnosis of Diseases of the Heart and Great Vessels (9th ed.). Little, Brown and Company.	Hlatky, M. A., Boineau, R. E., Higginbotham, M. B., Lee, K. L., Mark, D. B., Califf, R. M., Cobb, F. R., & Pryor, D. B. (1989). A brief self-administered questionnaire to determine functional capacity (The Duke Activity Status Index). American Journal of Cardiology, 64(10), 651–654.
Inne nazwy	NYHA, NYHA Class, Functional Classification	DASI
Pokrewne	4	4
Podsumowanie	The New York Heart Association (NYHA) Functional Classification is a four-category ordinal system for grading heart failure severity based on the level of physical activity that precipitates dyspnea or other HF symptoms. Established by the NYHA in 1928 and refined in 1994, the NYHA classification is the oldest and most widely used functional status metric in cardiology, providing a simple, clinically intuitive framework for describing HF symptom burden, guiding treatment intensity, and predicting prognosis.	The Duke Activity Status Index (DASI) is a 12-item self-report questionnaire that estimates functional capacity—the maximum oxygen consumption (VO2 max) a patient can achieve—based on their ability to perform common daily activities. Developed by Hlatky and colleagues in 1989, the DASI provides a non-invasive assessment of exercise tolerance and cardiovascular fitness equivalent to formal exercise stress testing, making it invaluable for risk stratification, treatment planning, and prognosis in cardiac and pulmonary populations.