# Carotid artery dissection and non-aneurysmal subarachnoid hemorrhage following carotid endarterectomy

## TL;DR

A patient developed a carotid artery dissection and subarachnoid hemorrhage after carotid endarterectomy, highlighting the importance of prompt diagnosis.

## Contribution

This case report highlights the rare but serious complications of carotid endarterectomy and emphasizes the need for early detection.

## Key findings

- A patient presented with subarachnoid hemorrhage and carotid artery dissection two weeks after CEA.
- Non-contrast head CT is beneficial for patients with headache and hypertension post-CEA.
- Prompt recognition of these complications is crucial for effective management.

## Abstract

Stroke continues to be a major public health issue resulting in high mortality and severe long-term disability. Carotid endarterectomy (CEA) plays an important role in the prevention of ischemic stroke. Complications associated with CEA can be life threatening and prompt recognition is crucial. In this report, we present a patient who presented to the hospital with progressive headache, 2 weeks following CEA. He was neurologically intact and hypertensive. Non-contrast head computed tomography (CT) scan showed convexity subarachnoid hemorrhage (SAH). He was found to have a left internal carotid artery dissection. Patients who present to the hospital following CEA with headache and hypertension benefit from a non-contrast head CT scan. The presence of SAH can be a warning sign of cerebral hyperperfusion syndrome. Carotid artery dissection is also a disease entity that can occur in the post-operative period. Prompt recognition and treatment is crucial for the management of these disease entities.