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Congestive heart failure arising from diastolic dysfunction in the presence of normal left-ventricular systolic
1The Department of Medicine, Baylor College of Medicine, Houston, Texas, USA.
Insights
Diastolic dysfunction causes congestive heart failure (CHF) in elderly patients with normal systolic function. While prognosis is better than systolic failure, more research is needed for effective treatments.
Area of Science:
- Cardiology
- Geriatrics
Background:
- Congestive heart failure (CHF) with preserved systolic function, often due to diastolic dysfunction, is common, especially in the elderly.
- These patients present with typical CHF symptoms but normal left ventricular (LV) systolic function.
Purpose of the Study:
- To outline a diagnostic approach for CHF patients with normal systolic function.
- To highlight the clinical characteristics, prognosis, and treatment challenges of diastolic dysfunction.
Main Methods:
- Review of clinical presentation and diagnostic considerations for diastolic dysfunction.
- Analysis of existing literature on treatment trials and outcomes for diastolic dysfunction.
Main Results:
- Patients with diastolic dysfunction have a better prognosis than those with LV systolic dysfunction.
- Limited clinical trials specifically target diastolic dysfunction, unlike LV systolic failure.
Conclusions:
- A thorough diagnostic work-up is crucial to identify and manage contributing factors in CHF with normal systolic function.
- Symptomatic relief is achievable with tailored therapy, but further research on long-term outcomes and specific treatments for diastolic dysfunction is warranted.
- Advancements in noninvasive imaging and hemodynamic assessments hold promise for improving patient care.
Abstract:
Congestive heart failure due to diastolic dysfunction is a common clinical entity, particularly in the elderly. As outlined, such patients fall into a larger group of all patients with CHF symptoms and normal systolic function. When finding "normal" systolic function, the clinician should embark upon a carefully outlined diagnostic work-up geared toward eliminating confounding or treatable contributing causes of dyspnea or typical CHF symptoms. The prognosis for CHF patients with primarily diastolic dysfunction is not as poor as for those with LV systolic dysfunction, although the prevalence, associated morbidity, and costs are great. In contrast to the large number of successful clinical trials that have guided treatment of LV systolic failure, an extremely limited number of trials have specifically addressed themselves to diastolic dysfunction. Marked symptomatic relief can often be provided with careful attention to tailored therapy, although little is known with regard to outcome. Refinements in noninvasive imaging methods and hemodynamic indices of diastolic function may lead to improved patient care.