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Ischemic stroke and heart failure: facts and numbers
Nadja Scherbakov1,2, Karl Georg Haeusler1,3, Wolfram Doehner1,2,4
1Center for Stroke Research Berlin (CSB), Charite Universitätsmedizin Berlin, Berlin, Germany.
ESC Heart Failure
|August 24, 2017
Summary
Heart failure (HF) significantly increases ischemic stroke risk and adverse outcomes. Understanding the complex interplay between HF and stroke is crucial for improving patient prognosis and developing targeted treatments.
Area of Science:
- Cardiology and Neurology
- Investigating the intricate relationship between cardiovascular and cerebrovascular diseases.
Background:
- Heart failure (HF) is a prevalent condition associated with numerous comorbidities.
- Ischemic stroke is a major comorbidity in HF patients, leading to higher mortality and functional dependency.
Discussion:
- HF patients face a 2-3 fold increased risk of ischemic stroke, with a 2-fold higher risk of recurrence.
- The incidence of stroke in HF patients escalates over time, and 'silent' strokes are also more common.
- Conversely, 10-24% of stroke patients also have HF, highlighting a significant bidirectional link.
Key Insights:
- Patients with HF exhibit a substantially higher likelihood of experiencing ischemic stroke, increased mortality, and poorer functional recovery post-stroke.
- The risk of recurrent stroke is approximately doubled in individuals with HF.
- Silent strokes (asymptomatic brain lesions) are 2-4 times more prevalent in HF patients.
Outlook:
- Further research is needed to elucidate detailed pathophysiological mechanisms linking HF and ischemic stroke beyond atrial fibrillation.
- Investigating the impact of HF with preserved versus reduced ejection fraction on stroke risk is essential.
- Determining whether HF treatment can prevent ischemic stroke or mitigate its sequelae requires further study.
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