Neurologic complications of infective endocarditis
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Published on: June 26, 2020
Tia Chakraborty1, Alejandro Rabinstein1, Eelco Wijdicks1
1Department of Neurology, Mayo Clinic, Rochester, MN, United States.
Insights
Infective endocarditis (IE) can cause serious brain issues. Despite risks, valve surgery is often necessary for patients with IE and neurologic complications, requiring multidisciplinary care.
Area of Science:
- Cardiology
- Neurology
- Infectious Diseases
Background:
- Infective endocarditis (IE) is a heart valve infection with potential systemic and cerebral embolization.
- Neurologic manifestations of IE include stroke, hemorrhage, and abscesses, associated with higher mortality.
- Neurologic involvement complicates management but does not always indicate a poor functional outcome.
Purpose of the Study:
- To review the neurologic manifestations of infective endocarditis.
- To discuss neuroimaging indications and treatment considerations for neurologic complications of IE.
- To clarify the role of valve surgery in IE patients with neurologic involvement.
Main Methods:
- Literature review of neurologic complications in infective endocarditis.
- Analysis of neuroimaging modalities and their utility.
- Discussion of therapeutic strategies, including anticoagulation and surgical intervention.
Main Results:
- Neuroimaging is crucial for patients with neurologic symptoms, including cerebral vessel imaging for subarachnoid hemorrhage.
- While IV thrombolysis is contraindicated for acute ischemic stroke in IE, endovascular thrombectomy may be considered.
- Most neurologic complications do not contraindicate valve surgery, which can be essential for preventing further issues.
Conclusions:
- Multidisciplinary management involving neurologists is vital for IE patients with neurologic complications.
- Valve surgery is often indispensable in IE cases with neurologic involvement, despite hemorrhage risks from anticoagulation.
- Careful consideration of neurologic status is necessary when deciding on valve surgery in infective endocarditis.
Abstract:
Infective endocarditis (IE) is an infection primarily affecting the endocardium of heart valves that can embolize systemically and to the brain. Neurologic manifestations include strokes, intracerebral hemorrhages, mycotic aneurysms, meningitis, cerebral abscesses, and infections of the spine. Neurologic involvement is associated with worse mortality, though it does not always portend a poor functional prognosis. Neuroimaging is indicated in patients who have neurologic symptoms, including cerebral vessel imaging in patients who have subarachnoid hemorrhage. In the case of acute ischemic stroke (IS), IV thrombolysis is contraindicated but endovascular thrombectomy may be a consideration. Neurologic findings understandably raise concern about valve surgery when indicated due to the risk of hemorrhage with perioperative anticoagulation. However, most neurologic complications do not preclude valve surgery and valve surgery may in fact be indispensable in some cases to prevent further neurologic problems. Management decisions in patients with IE and neurologic complications should therefore be multidisciplinary with a major contribution from the neurologist.
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