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Stroke Risk

The coexistence of atrial fibrillation and heart failure raises the risk of stroke

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Jan 24, 2026
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Atrial fibrillation with rvr and HFrEF lifetime reduction?

(AF) occurring with (RVR) in patients who already have with reduced ejection fraction (HFrEF) is linked to substantially worse outcomes: new AF in HFrEF raises all‑cause mortality risk markedly (hazar...

Jan 6, 2026

How does the risk of myocarditis or stroke after COVID‑19 vaccination compare to the risk after COVID‑19 infection in adults over 65?

COVID-19 infection carries a substantially higher risk of myocarditis and other cardiac complications, including in older adults, than does vaccination; population studies in multiple countries report...