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.
Abstract

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