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Related Concept Videos

Sleep Apnea01:21

Sleep Apnea

Sleep apnea is a condition where breathing stops intermittently during sleep, often leading to significant health issues. Each episode can last from 10 to 20 seconds or more and is frequently accompanied by a brief arousal from sleep. This disturbance, largely unnoticed by the individual, can lead to severe daytime fatigue. Commonly, individuals seek help after being informed by their partners about loud snoring and noticeable breathing pauses during sleep.
The condition is more prevalent among...
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.
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...
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...
Other Pulmonary Disorders01:17

Other Pulmonary Disorders

Respiratory disorders encompass a range of conditions with varying levels of severity. Asthma, marked by chronic airway inflammation and hypersensitivity, is one such condition. It can lead to airway obstruction due to factors like bronchial spasms, mucosal edema, increased mucus secretion, or epithelial damage. Asthma triggers are diverse, ranging from allergens to emotional upset, and treatment focuses on both immediate relief through bronchodilators and long-term inflammation suppression.
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...

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Updated: Jun 17, 2026

Drug-Induced Sleep Endoscopy (DISE) with Target Controlled Infusion (TCI) and Bispectral Analysis in Obstructive Sleep Apnea
07:54

Drug-Induced Sleep Endoscopy (DISE) with Target Controlled Infusion (TCI) and Bispectral Analysis in Obstructive Sleep Apnea

Published on: December 6, 2016

Obstructive sleep apnea and stroke.

Mark Eric Dyken1, Kyoung Bin Im1

  • 1Sleep Disorders Center, the Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA.

Chest
|December 10, 2009
PubMed
Summary
This summary is machine-generated.

Obstructive sleep apnea (OSA) is linked to stroke, with evidence suggesting it may be a contributing risk factor. However, the cost-effectiveness of screening and treating OSA after a stroke remains debated.

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Drug-Induced Sleep Endoscopy (DISE) with Target Controlled Infusion (TCI) and Bispectral Analysis in Obstructive Sleep Apnea
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Published on: October 18, 2024

Area of Science:

  • Neurology
  • Sleep Medicine
  • Cardiovascular Science

Background:

  • Obstructive sleep apnea (OSA) and stroke are common conditions with shared risk factors.
  • Existing studies show a significant association between OSA and stroke.
  • Apnea can result from strokes affecting respiratory centers.

Purpose of the Study:

  • To investigate the association between obstructive sleep apnea and stroke.
  • To explore the potential role of untreated OSA as a stroke risk factor.
  • To address the controversy regarding the cost-effectiveness of OSA screening and treatment post-stroke.

Main Methods:

  • Review of case-control and cross-sectional studies.
  • Analysis of evidence including snoring, pre-stroke apneas, autonomic studies, and stroke circadian patterns.
  • Evaluation of cohort studies on OSA as a stroke risk factor.

Main Results:

  • Strong association demonstrated between OSA and stroke through various study designs.
  • Evidence suggests untreated OSA may contribute to stroke development.
  • Cohort studies support OSA as an independent stroke risk factor.

Conclusions:

  • Untreated obstructive sleep apnea is implicated as a contributing factor to stroke.
  • Further research is needed to clarify the cost-effectiveness of OSA interventions following stroke.
  • The relationship between OSA and stroke warrants continued investigation and clinical consideration.