Cerebral hyperperfusion syndrome

From WikiMD's Wellness Encyclopedia

Cerebral Hyperperfusion Syndrome (CHS) is a medical condition characterized by an increase in blood flow to the brain, which can lead to severe complications such as intracranial hemorrhage, seizures, and headaches. It is often associated with carotid endarterectomy and carotid artery stenting, procedures used to treat carotid artery disease.


The exact cause of CHS is not fully understood. However, it is believed to occur due to a loss of cerebrovascular autoregulation, the process by which the brain maintains a constant blood flow despite changes in blood pressure. This can occur following procedures such as carotid endarterectomy or carotid artery stenting, which can disrupt the normal autoregulatory mechanisms of the brain.

Clinical Presentation

Patients with CHS typically present with symptoms such as severe headache, seizures, and neurological deficits. In severe cases, intracranial hemorrhage can occur, which can be life-threatening.


Diagnosis of CHS is typically based on clinical presentation and imaging studies. Magnetic resonance imaging (MRI) and computed tomography (CT) scans can be used to identify signs of increased blood flow to the brain.


Treatment of CHS typically involves managing the symptoms and attempting to restore normal blood flow to the brain. This can involve the use of medications to lower blood pressure and reduce the risk of intracranial hemorrhage.


The prognosis for patients with CHS can vary widely, depending on the severity of the condition and the patient's overall health. However, with prompt diagnosis and treatment, many patients can recover fully.

See Also


WikiMD neurology

Cerebral hyperperfusion syndrome Resources

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Contributors: Prab R. Tumpati, MD