Characteristics and Prognosis of Herat Failure with Improved Ejection Fraction

• Published in: Zhongguo quanke yixue Vol. 25; no. 5; pp. 568 - 576
• Main Author: SU Kangkang, WANG Yan, WANG Lili, CHEN Shuxia, GU Jian
• Format: Journal Article
• Language: Chinese
• Published: Chinese General Practice Publishing House Co., Ltd 01.02.2022
• Subjects: heart failure|cardiovascular diseases|left ventricular ejection fraction|ventricular remodeling|improved ejection fraction|disease attributes|prognosis|root cause analysis|survival analysis
• ISSN: 1007-9572
• DOI: 10.12114/j.issn.1007-9572.2021.01.050

BackgroundLeft ventricular ejection fraction (LVEF) is often used to classify heart failure (HF) . Some HF patients were observed to have improved ejection fraction after treatment, thus giving rise to the concept of HF with improved EF (HFimpEF) . However, most relevant studies have focused on European countries and the US, and there are few reports on the clinical characteristics and diagnosis of this population in China.ObjectiveTo analyze the clinical characteristics, prognosis and prognostic predictors in Chinese HFimpEF patients.MethodsParticipants included in this case-control study were chronic HF inpatients who were recruited from Department of Heart Center, Hebei General Hospital from June 1, 2018, to May 1, 2020. Demographic data and baseline clinical information were obtained from the electronic medical record, in particular, clinical phenotypes of HF classified by baseline and follow-up LVEF included four: HF with preserved EF (HFpEF) , HF with mid-range EF (HFmrEF) , HF with reduced EF (HFrEF) a