Objective:To investigate the clinical characteristics of heart failure with normal ejection fraction(HFNEF).Methods:From January 2009 to December 2009

91 patients in our hospital with chronic heart failure were enrolled.According to a 2007 European Society of Cardiology expert consensus

HFNEF were diagnosed.The patients were given anti-heart failure therapy and at least 1-year follow-up.Results:A total of 48 patients had ejection fraction >50% of the HFNEF(52.7%) in 91 patients.Compared with heart failure with deteriorated ejection fraction(HFDEF) patients

HFNEF included more women

more cases with hypertensive heart disease and Ⅱ level heart function

and were combined more with hyperlipidemia and closely related to smoking rate.Echocardiography showed LVDd

LVDs

LAD

and LVOT in HFNEF group were lower than those in HFDEF group

while EF and FS in HFNEF were higher than those of HFDEF group.X x-ray examination showed changes in chest and lung congestion and cardiac dilatation were smaller in HFNEF.The 1-year readmission rate and mortality rate in HFNEF patients were lower than those in HFDEF patients.Conclusion:Nearly 50% of chronic heart failure patients have a normal left ventricular ejection fraction

more common in female patients or patients with hypertension

in which ventricular enlargement is to a lesser extent

and readmission rate and mortality are low.