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Related Concept Videos

Regulation of Stroke Volume01:27

Regulation of Stroke Volume

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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.
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Atherosclerosis IV: Nursing Management01:23

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Ischemic Heart Disease: Overview01:17

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Ischemic heart disease occurs when the heart's blood supply dwindles, causing an ominous lack of oxygen and nutrients. This deficiency, stemming from reduced or obstructed blood flow, spells danger, leading to heart muscle damage and dysfunction.
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Cardiac Output II: Effect of Stroke Volume on Cardiac Output01:22

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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...
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Coronary Artery Disease IV: Preventive Measures01:26

Coronary Artery Disease IV: Preventive Measures

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Effective preventive measures for coronary artery disease (CAD) focus on controlling modifiable risk factors, including cholesterol abnormalities and lifestyle changes.Cholesterol ManagementFirst, the Mediterranean diet and the American Heart Association advocate for maintaining low-density lipoprotein (LDL) cholesterol levels below 100 mg/dL, with a more stringent recommendation of below 70 mg/dL for individuals at high risk. LDL cholesterol, often termed "bad cholesterol," can lead to the...
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Predicting Breath Hold Task Compliance From Head Motion.

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Discrimination of Radiologists' Experience Level Using Eye-Tracking Technology and Machine Learning: Case Study.

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A Middle Cerebral Artery Occlusion Technique for Inducing Post-stroke Depression in Rats
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Decrease in Stroke Diagnoses During the COVID-19 Pandemic: Where Did All Our Stroke Patients Go?

Adrienne Nicole Dula1,2, Gretchel Gealogo Brown3, Aarushi Aggarwal4

  • 1Department of Neurology, Dell Medical School, The University of Texas at Austin, Austin, TX, United States.

JMIR Aging
|October 2, 2020
PubMed
Summary
This summary is machine-generated.

During the COVID-19 pandemic, emergency departments saw fewer acute ischemic stroke diagnoses. This study investigates why stroke patients, particularly in Texas, may have delayed seeking care for critical neurological symptoms.

Keywords:
COVID-19SARS-CoV-2cerebrovascularemergency medicineischemic strokestroke

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Area of Science:

  • Neurology
  • Public Health
  • Infectious Diseases

Background:

  • The COVID-19 pandemic has been associated with a high rate of cerebrovascular complications.
  • Despite this, reports indicate a decrease in new ischemic stroke diagnoses during the pandemic.
  • Reduced emergency department (ED) visits are attributed to patient avoidance of potential SARS-CoV-2 exposure.

Purpose of the Study:

  • To investigate the observed decrease in acute ischemic stroke diagnoses during the COVID-19 pandemic.
  • To analyze stroke patient volumes in central and south Texas following shelter-at-home orders.
  • To understand the impact of reduced face-to-face encounters on stroke symptom recognition and care-seeking.

Main Methods:

  • Review of existing literature on cerebrovascular complications and COVID-19.
  • Analysis of patient admission, treatment, and discharge data for acute stroke in Texas regions.
  • Examination of stroke warning sign recognition in the context of social distancing and isolation.

Main Results:

  • A significant decrease in acute ischemic stroke patient volumes is suspected in Texas EDs post-shelter-at-home orders.
  • Patients may be delaying care for stroke symptoms due to fear of SARS-CoV-2 infection.
  • Limited social interaction may lead to delayed recognition of stroke symptoms by family or friends.

Conclusions:

  • The pandemic has likely led to a reduction in diagnosed ischemic strokes, not necessarily a true decrease in incidence.
  • Patient education on recognizing stroke warning signs is crucial during periods of isolation.
  • Further analysis is needed to understand the full impact on stroke care in diverse populations like those in San Antonio and Austin.