Factors associated with early outcome in patients with large-vessel carotid strokes

Elisa Cuadrado-Godia1, Sara Jimena, Angel Ois

  • 1Neurology Department, Hospital del Mar, Universitat Autònoma de Barcelona, Barcelona, Spain. Ecuadrado@hospitaldelmar.cat

Insights

Patients with symptomatic carotid stenosis often experience mild ischemic strokes but face a high risk of early neurological deterioration. Increased carotid stenosis degree significantly elevates stroke severity and deterioration risk.

Area of Science:

  • Neurology
  • Vascular Medicine
  • Stroke Research

Background:

  • Symptomatic carotid stenosis is a significant risk factor for ischemic stroke.
  • Understanding stroke severity and early neurological deterioration (END) is crucial for patient management.
  • Carotid artery disease influences stroke outcomes.

Purpose of the Study:

  • To characterize the severity of ischemic strokes in patients with symptomatic carotid stenosis.
  • To identify the incidence of early neurological deterioration (END) in this patient group.
  • To analyze factors influencing stroke severity and END.

Main Methods:

  • An observational cohort study included 338 patients with ischemic stroke and carotid stenosis.
  • Stroke severity was categorized using the NIH Stroke Scale (NIHSS).
  • Logistic regression analyses assessed risk factors for stroke severity and END.

Main Results:

  • Most strokes (75.1%) were mild, but 23.1% of patients experienced END.
  • Higher degree of carotid stenosis, intracranial disease, and plasma glucose correlated with increased stroke severity.
  • END was independently associated with degree of carotid stenosis, prior TIA, and mean arterial pressure.

Conclusions:

  • Ischemic strokes from carotid artery disease are typically mild but have a high rate of END.
  • The degree of carotid stenosis is a key predictor of both stroke severity and END risk.
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...
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...
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...
Regulation of Stroke Volume01:27

Regulation of Stroke Volume

The regulation of stroke volume, which is the amount of blood the heart pumps out during each heartbeat, is critical for maintaining a healthy circulatory system. Stroke volume is influenced by three main factors: preload, contractility, and afterload.
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
Cardiac Output II: Effect of Stroke Volume on Cardiac Output01:22

Cardiac Output II: Effect of Stroke Volume on Cardiac Output

Cardiac output (CO), the amount of blood the heart pumps per minute, is a parameter in cardiovascular physiology determined by stroke volume and heart rate. Stroke volume, the amount of blood pushed from one of the ventricles per heartbeat, is influenced by preload, afterload, and contractility.
Preload
Preload refers to the initial elongation of the cardiac myocytes before contraction and is related to the volume of blood filling the heart at the end of diastole, or end-diastolic volume. The...