Transient Focal Neurological Episodes Linked to Convexity Subarachnoid Hemorrhage

Overview

This report discusses a case of a 46-year-old female with transient focal neurological episodes (TFNEs) associated with convexity subarachnoid hemorrhage (cSAH) due to severe ipsilateral extracranial internal carotid artery stenosis. The patient was successfully treated with antiepileptics and carotid endarterectomy.

Background

Convexity subarachnoid hemorrhage (cSAH) is often underdiagnosed and accounts for 5-10% of all spontaneous SAHs. It is crucial to identify the underlying causes, especially in younger patients, where conditions like reversible cerebral vasoconstriction syndrome and severe carotid artery stenosis can lead to significant neurological events. Understanding these associations can improve diagnostic accuracy and treatment strategies.

Data Highlights

No numerical data or trial data presented in the article.

Key Findings

• The patient experienced repetitive TFNEs linked to multiple ipsilateral cSAHs.
• Severe atherosclerosis with subtotal occlusion of the extracranial internal carotid artery was identified.
• cSAH in this case was not associated with typical causes like cerebral amyloid angiopathy, which is more common in older adults.
• Successful management included antiepileptics and carotid endarterectomy.
• Diagnostic imaging revealed characteristic findings of cSAH without signs of vasogenic edema.

Clinical Implications

Clinicians should consider cSAH as a potential diagnosis in younger patients presenting with TFNEs, particularly in the context of severe carotid artery stenosis. Early identification and appropriate management can significantly improve patient outcomes.

Conclusion

This case underscores the importance of recognizing atypical presentations of cSAH and the need for thorough diagnostic evaluation in younger patients. Effective treatment can lead to favorable outcomes.

Related Resources & Content

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