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Updated: Mar 11, 2026

Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction
Published on: February 13, 2021
Patients with HFpEF and HFrEF have different clinical characteristics but similar prognosis: a retrospective cohort
Tamrat Befekadu Abebe1, Eyob Alemayehu Gebreyohannes2, Yonas Getaye Tefera2
1Department of Clinical Pharmacy, School of Pharmacy, College of Medicine and Health Science, University of Gondar, Gondar, Ethiopia. Befekadutamrat@gmail.com.
Insights
Heart failure in Ethiopia shows distinct clinical profiles for preserved (HFpEF) and reduced (HFrEF) ejection fraction. Survival outcomes were similar between HFpEF and HFrEF, but advanced age and certain lab values predicted mortality.
Area of Science:
- Cardiology
- Public Health
- Epidemiology
Background:
- Heart failure (HF) is a significant global cardiovascular disorder with substantial morbidity and mortality.
- In Sub-Saharan Africa, HF is a leading cardiovascular disease with considerable socioeconomic impact.
- Ethiopian HF patients exhibit variations in clinical characteristics and survival between HF with preserved ejection fraction (HFpEF) and HF with reduced ejection fraction (HFrEF).
Purpose of the Study:
- To characterize clinical profiles and medication use in Ethiopian patients with HFpEF and HFrEF.
- To assess survival status and identify prognostic factors for mortality in these patient groups.
- To compare outcomes between HFpEF and HFrEF in the Ethiopian context.
Main Methods:
- A retrospective cohort study analyzed medical records of 311 HF patients admitted between 2010 and 2015.
- Kaplan Meier curves and log rank tests were used to compare survival between HFpEF and HFrEF groups.
- Cox regression analysis identified independent predictors of mortality.
Main Results:
- The majority of patients had HFpEF (52.73%), predominantly women, with valvular and hypertensive heart disease etiologies.
- HFrEF patients had ischemic heart disease and dilated cardiomyopathy etiologies, with higher use of ACEI and beta-blockers.
- No statistically significant difference in mortality was observed between HFpEF and HFrEF (p=0.807).
- Advanced age, lower sodium, higher creatinine, and absence of ACEI, spironolactone, and statins independently predicted mortality.
Conclusions:
- Ethiopian HF patients display diverse clinical characteristics based on ejection fraction status.
- Survival outcomes did not differ significantly between HFpEF and HFrEF patients in this cohort.
- Prognostic factors for mortality include advanced age, specific laboratory values, and medication use.
Background:
Globally, heart failure (HF) has been recognized as one of the major cardiovascular disorder with high morbidity, mortality and considerable social impact. In Sub Saharan African countries, HF has turned out as a leading form of cardiovascular diseases, and has considerable socioeconomic impact. However, there are differences in clinical characteristics and survival status among patients with preserved (HFpEF) and reduced (HFrEF) ejection fraction. The aim of this study is to outline the clinical characteristics and medication profile, assess the survival status and prognostic factors of Ethiopian HF patients with HFrEF and HFpEF.
Methods:
A retrospective cohort study was carried out and we employed medical records of patient's, admitted as a result of HF to the University of Gondar Referral Hospital in the period between December 02, 2010 and December 01, 2015 due to HF. Kaplan Meier curve was used to analyze the survival status and log rank test was used to compare the curves. Cox regression was used to analyze independent predictors of mortality in all HF patients.
Results:
Of the 850 patients who were admitted due to HF, 311 patients met the inclusion criteria. Majority of the patients had HFpEF (52.73%) and tend to be women (76.22%). They predominantly had etiologies of valvular and hypertensive heart diseases, and took calcium channel blockers and anticoagulants. Conversely, patients with HFrEF had etiologies of ischemic heart disease and dilated cardiomyopathy and were prescribed angiotensine converting inhibitors (ACEI) and beta blockers. Kaplan Meier curves and Log rank test (p = 0.807) showed that there was no statistically significant difference in the mortality difference among patients with HFpEF and HFrEF. On the other hand, Cox regression analysis showed advanced age, lower sodium level, higher creatinine level and absence of medications like ACEI, spironolactone and statins independently predicted mortality in all HF patients.
Conclusions:
Different clinical characteristics were found in both groups of HF patients. There was no difference in survival outcome between patients with HFrEF and HFpEF.
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