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Outcome of heart failure with preserved ejection fraction: a multicentre spanish registry
Juan C Castillo1, Manuel P Anguita, Manuel Jiménez
1Cardiology Department, Hospital Reina Sofia, Córdoba, Spain.
Insights
Congestive heart failure (CHF) patients with preserved ejection fraction (≥ 45%) show similar long-term mortality and morbidity compared to those with reduced ejection fraction. Clinical characteristics differ, but outcomes are comparable.
Area of Science:
- Cardiology
- Heart Failure Research
Background:
- Limited data exists on clinical features, treatment, and prognosis for congestive heart failure (CHF) with preserved left ventricular ejection fraction (LVEF).
- Existing study results on this patient group are often conflicting.
Purpose of the Study:
- To investigate the clinical characteristics of patients diagnosed with CHF and preserved LVEF (≥ 45%).
- To determine the long-term prognosis and outcomes for patients with CHF and preserved LVEF.
Main Methods:
- Prospective, multicenter study involving 4720 patients across 62 heart failure clinics in Spain (BADAPIC registry, 1999-2003).
- Analysis of patient demographics, clinical features, and follow-up data over a mean of 40 months.
- Multivariate analysis to identify independent predictors of mortality.
Main Results:
- 30% of CHF patients in the registry had preserved LVEF.
- Patients with preserved LVEF were older, more frequently female, and had higher rates of atrial fibrillation, hypertension, and non-ischemic cardiomyopathy.
- Mortality and cardiovascular complication rates were similar between preserved and reduced LVEF groups.
- Ejection fraction was not an independent predictor of mortality; 1- and 5-year survival rates were comparable.
Conclusions:
- A significant proportion of heart failure patients present with preserved LVEF.
- Despite distinct clinical profiles, patients with preserved LVEF experience similar morbidity and mortality rates compared to those with reduced LVEF.
Background:
Studies on clinical features, treatment and prognosis of patients with congestive heart failure (CHF) and preserved left ventricular ejection fraction (LVEF) are few and their results frequently conflicting.
Aims:
To investigate the characteristics and long term prognosis of patients with CHF and preserved (≥ 45%) LVEF.
Methods And Results:
We conducted a prospective multicentre study with 4720 patients attended in 62 heart failure clinics from 1999 to 2003 in Spain (BADAPIC registry). LVEF was preserved in 30% patients. Age, female gender, prevalence of atrial fibrillation, hypertension and non-ischaemic cardiopathy were all significantly greater in patients with preserved LVEF. Mean follow-up was 40±12 months. Mortality and other cardiovascular complication rates during follow up were similar in both groups. On multivariate analysis ejection fraction was not an independent predictor for mortality. Survival at one and five years was similar in both groups (79% and 59% for patients with preserved LVEF and 78% and 57% for those with reduced LVEF, respectively).
Conclusions:
In the BADAPIC registry, a high percentage of heart failure patients had preserved LVEF. Although clinical differences were seen between groups, morbidity and mortality were similar in both groups.
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