Early acute hemispheric stroke after carotid endarterectomy. Pathogenesis and management

Giovanni Pappadà1, Francesco Vergani, Michele Parolin

  • 1Neurosurgery Department, University of Milano-Bicocca, at San Gerardo Hospital, 20052 Monza, Milan, Italy. giovanni.pappada@fastwebnet.it

Acta Neurochirurgica
|October 21, 2009
PubMed

Insights

A major stroke after carotid endarterectomy (CEA) is often due to acute internal carotid artery (ICA) occlusion. Reopening the ICA can lead to good outcomes if the artery is successfully reopened and intracranial vessels remain patent.

Area of Science:

  • Vascular Surgery
  • Neurology
  • Cerebrovascular Disease

Background:

  • Stroke is a significant complication following carotid endarterectomy (CEA).
  • Management strategies for post-CEA stroke require further definition.
  • This study aims to establish a treatment algorithm for perioperative stroke after CEA.

Purpose of the Study:

  • To review a series of patients experiencing stroke after CEA.
  • To define an effective treatment algorithm for managing major stroke post-CEA.
  • To analyze the outcomes of interventions for acute internal carotid artery occlusion.

Main Methods:

  • A consecutive series of 413 CEAs in 390 patients was analyzed.
  • Patients experiencing new or worsening ischemic hemispheric deficits within 72 hours post-surgery were included.
  • Operations were performed under general anesthesia with EEG monitoring; shunting was based on EEG changes.

Main Results:

  • Sixteen patients (3.9%) experienced perioperative stroke, with nine (2.2%) having major strokes.
  • Acute internal carotid artery (ICA) occlusion was the primary cause in most major stroke cases.
  • Seven of nine patients with major stroke underwent reoperation; ICA reopening was successful in six, with three achieving good outcomes.

Conclusions:

  • Major stroke post-CEA is frequently caused by acute ICA occlusion, potentially with intracranial emboli.
  • Successful reopening of the ICA is crucial for favorable outcomes.
  • A planned management algorithm for perioperative stroke after CEA is proposed based on these findings.
Abstract

Related Concept Videos

Ischemic Stroke ll: Pathophysiology01:15

Ischemic Stroke ll: Pathophysiology

An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...
Ischemic Stroke l: Introduction01:15

Ischemic Stroke l: Introduction

Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.
Hemorrhagic Stroke ll: Pathophysiology01:29

Hemorrhagic Stroke ll: Pathophysiology

A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...
Hemorrhagic Stroke l: Introduction01:17

Hemorrhagic Stroke l: Introduction

A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...
Stroke: Introduction and Types01:29

Stroke: Introduction and Types

A stroke is an acute neurological event caused by the sudden disruption of cerebral blood flow, leading to rapid loss of neuronal function. Neurons depend on continuous oxygen and glucose supply, so even brief interruptions can cause irreversible injury within minutes. Strokes are classified into ischemic and hemorrhagic types.Ischemic StrokeIschemic strokes are most common and occur due to arterial occlusion, depriving brain tissue of oxygen and nutrients. This leads to energy failure, ionic...
Atherosclerosis IV: Nursing Management01:23

Atherosclerosis IV: Nursing Management

Nursing management for a patient with arteriosclerosis involves a comprehensive approach focusing on lifestyle modification, disease monitoring, education, and symptomatic care. Here is an overview of effective nursing strategies:Assessment and Monitoring: Initial and ongoing assessments are crucial. Nurses must document the patient's medical history, including any hypertension, diabetes, hyperlipidemia, and other cardiovascular diseases. Assessments also cover family history and lifestyle...