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Published on: June 10, 2025
The frequency of systolic versus diastolic heart failure in an Egyptian cohort
1National Heart Institute, Cairo, Egypt. bassemibrahim@hotmail.com
Insights
Diastolic heart failure accounts for one-third of congestive heart failure (CHF) cases in Egypt, predominantly affecting hypertensive patients. While requiring less hospitalization, its mortality mirrors that of systolic CHF.
Area of Science:
- Cardiology
- Epidemiology
Background:
- Increasing prevalence of congestive heart failure (CHF) risk factors like coronary artery disease (CAD), hypertension, and diabetes in Egypt.
- Lack of available data on CHF in the Egyptian population.
Purpose of the Study:
- To determine the prevalence of systolic versus diastolic heart failure in Egyptians.
- To identify risk factors and prognosis associated with different types of CHF in this population.
Main Methods:
- Retrospective analysis of 155 patients diagnosed with CHF over 3.5 years.
- Collection of demographic, ECG, and echocardiographic data.
- Analysis of hospitalization and mortality rates for systolic versus diastolic CHF.
Main Results:
- Systolic CHF (66%) was more prevalent than diastolic CHF (34%).
- CAD was more common in systolic CHF, while hypertension was prevalent in diastolic CHF.
- Systolic CHF patients had higher hospitalization rates, but mortality was similar between groups.
Conclusions:
- Diastolic heart failure constitutes one-third of CHF cases in Egyptians.
- Hypertension is a significant risk factor in Egyptian patients with diastolic heart failure.
- Diastolic CHF patients experience less hospitalization but similar mortality rates compared to systolic CHF.
Background:
All factors predisposing for congestive heart failure (CHF), such as coronary artery disease (CAD), hypertension and diabetes are increasing in prevalence in Egypt. Despite this, no data about CHF in our country are available.
Aims:
To study the relative contribution of systolic vs. diastolic heart failure in Egyptians and the prevalence of risk factors in this population, as well as their prognosis.
Methods:
This was a retrospective study of patients with a diagnosis of CHF over a 3.5-year period in a general cardiology clinic. Demographic, ECG and echocardiographic data for left ventricular systolic and diastolic function were collected. The differential effect of systolic versus diastolic CHF was analyzed regarding hospitalization and mortality.
Results:
After exclusion of valvular diseases, we found 155 patients diagnosed with heart failure, 102 patients (66%) had systolic heart failure, and 53 (34%) had diastolic heart failure. Mean age was 60+/-10 and 63+/-11 years, respectively (P=0.13). Systolic CHF patients had significantly more CAD, while those with diastolic failure were mostly hypertensives (P<0.01) for both. There was no significant difference in the incidence of diabetes mellitus, cerebrovascular accidents or atrial fibrillation between the two groups. Patients with systolic failure required more hospitalization, P<0.05, and had a mortality rate of 17.6% vs. 11.3% for patients with diastolic heart failure (P=0.3).
Conclusion:
Diastolic heart failure is present in one-third of cases of CHF in Egyptians. Hypertension is very common in this group. These patients require less hospitalization but have a similar mortality rate.
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