Hyperperfusion syndrome after carotid revascularization.

Area of Science:

• Neurology
• Vascular Surgery
• Neurosurgery

Background:

• Cerebral hyperperfusion syndrome (CHS) is a serious complication following carotid revascularization procedures.
• It can occur after both carotid endarterectomy and carotid artery stenting.
• The underlying mechanisms involve impaired cerebral autoregulation and altered cerebral hemodynamics.

Purpose of the Study:

• To synthesize current literature on cerebral hyperperfusion syndrome.
• To review clinical manifestations, pathophysiologic pathways, prediction, and management strategies.
• To analyze recent case series of CHS after carotid revascularization.

Main Methods:

• Comprehensive literature review.
• Synthesis of existing data on CHS.
• Analysis of recent clinical series.

Main Results:

• CHS is linked to impaired cerebral autoregulation and hemodynamic changes post-revascularization.
• Intracranial hemorrhage is a potentially fatal consequence of CHS.
• The review covers clinical presentation, pathophysiology, prediction, and management.

Conclusions:

• Cerebral hyperperfusion syndrome requires careful monitoring after carotid revascularization.
• Understanding the pathophysiology is key to predicting and managing CHS.
• Further research into optimal management strategies is warranted.