Longitudinal strain correlates with 6-minute walk distance whereas ejection fraction and diastolic parameters do not.

Background: Impaired functional capacity is a common symptom in patients with heart failure. Standard measures of left ventricular (LV) function, such as ejection fraction (EF) and LV diastolic parameters, do not correlate with measures of functional capacity. The aim of this study is to determine if measures of global and regional LV strain better correlate with 6-minute walk distance than does EF or measures of LV diastolic function.

Cardiac rehabilitation: Effective yet underutilized in patients with cardiovascular disease.

Cardiac rehabilitation is a comprehensive program that treats patients with multiple cardiac conditions including post-myocardial infarction, stable angina, post-coronary artery bypass surgery, chronic heart failure, and peripheral vascular disease with structured exercise, and nutrition and risk factor counseling. It is an effective tool that has been shown to improve not only quality of life but also reduce adverse cardiac events, including death. While the value of cardiac rehabilitation is supported by a large body of evidence and its recommendation by the American Heart Association/American College of Cardiology it is significantly underutilized due to both patient and systemic factors.