“New York Heart Association Functional Classification”的意思、由来-开放百科全书

词条

New York Heart Association Functional Classification

释义

See also
References

The New York Heart Association (NYHA) Functional Classification^[1] provides a simple way of classifying the extent of heart failure. It places patients in one of four categories based on how much they are limited during physical activity; the limitations/symptoms are in regard to normal breathing and varying degrees in shortness of breath and/or angina.

It originated in 1902,^[2] when no measurements of cardiac function were possible, to provide a common language for physicians to communicate. Despite difficulties in applying it, such as the challenge of consistently classifying patients in class II or III,^[3] because functional capacity is such a powerful determinant of outcome it remains arguably the most important prognostic marker in routine clinical use in heart failure today.

NYHA Class	Symptoms
I	No limitation of physical activity. Ordinary physical activity does not cause undue fatigue, palpitation, dyspnea (shortness of breath).
II	Slight limitation of physical activity. Comfortable at rest. Ordinary physical activity results in fatigue, palpitation, dyspnea (shortness of breath).
III	Marked limitation of physical activity. Comfortable at rest. Less than ordinary activity causes fatigue, palpitation, or dyspnea.
IV	Unable to carry on any physical activity without discomfort. Symptoms of heart failure at rest. If any physical activity is undertaken, discomfort increases.

Another frequently used functional classification of cardiovascular disease is the Canadian Cardiovascular Society grading of angina pectoris.

References

1. ^{{cite book|last=The Criteria Committee of the New York Heart Association.|title=Nomenclature and Criteria for Diagnosis of Diseases of the Heart and Great Vessels.|year=1994|edition=9th|publisher=Little, Brown & Co|location=Boston|pages=253–256}}
2. ^{{cite web|url=http://my.americanheart.org/professional/StatementsGuidelines/ByPublicationDate/PreviousYears/Classification-of-Functional-Capacity-and-Objective-Assessment_UCM_423811_Article.jsp|accessdate=27 October 2013|title=Classification of Functional Capacity and Objective Assessment}}
3. ^{{cite journal|vauthors=Raphael C, Briscoe C, Davies J, Ian Whinnett Z, Manisty C, Sutton R, Mayet J, Francis DP|title=Limitations of the New York Heart Association functional classification system and self-reported walking distances in chronic heart failure.|journal=Heart|date=April 2007|volume=93|issue=4|pages=476–82|pmid=17005715|doi=10.1136/hrt.2006.089656|pmc=1861501}}

1 : Cardiology

随便看

开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。

See also

References