心衰的五个重要事实
心衰症状四个级别划分
纽约心脏病协会（NYHA）使用分类量表评估心衰的发展阶段【6】，并根据体能将患者划分为四类：
I级
“我能从事所有体力活动，不会出现气短、疲惫或心悸。”
一般体力活动不受限
II级
“我在从事稍重的体力活动时，比如爬陡坡或楼梯，会出现气短、疲惫或心悸。”
一般体力活动轻度受限
III级
“我在从事日常体力活动时（比如平地行走），会出现气短、疲惫或心悸。”
一般体力活动明显受限，小于一般体力活动即出现症状
IV级
“我休息的时候都会感到喘不上气，大部分时间足不出户。我从事任何体力活动，都会出现气短、疲惫或心悸。”
一般体力活动完全受限，休息时也有症状
患者分类可随病情和治疗的改变而变化。
References
1. Global Burden of Disease Study 2013 Collaborators. Global, regional, and national incidence, prevalence, and years lived with disability for 301 acute and chronic diseases and injuries in 188 countries,
1990-2013: a systematic analysis for the Global Burden of Disease Study 2013. Lancet. 2015; 386(9995):743-800.
2. Go, et al. Heart Disease and Stroke Statistics−2014 Update: A Report From the American Heart Association. Circulation. 2014; 129(4):e28-e292.
3. Lloyd-Jones DM, et al. Lifetime risk for developing congestive heart failure: the Framingham Heart Study. Circulation. 2002; 106:3068–72.
4. Remme WJ, et al. Public awareness of heart failure in Europe: first results from SHAPE. European Heart Journal. 2005;26:2413-2421.
5. Survey of 11,000 members of the public aged 50+ years old in Europe, funded by Novartis. RTNS UK Limited, March 2014.
6. Holland R, Rechel B, et al. Patients’ Self-Assessed Functional Status in Heart Failure by New York Heart Association Class: A Prognostic Predictor of Hospitalizations, Quality of Life and Death.
Journal of Cardiac Failure. 2010; 16:2.
