Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Cardiac Output II: Effect of Stroke Volume on Cardiac Output01:22

Cardiac Output II: Effect of Stroke Volume on Cardiac Output

1.6K
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...
1.6K
Regulation of Stroke Volume01:27

Regulation of Stroke Volume

3.7K
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...
3.7K
Acute Coronary Syndrome IV: Interprofessional Care01:28

Acute Coronary Syndrome IV: Interprofessional Care

42
IntroductionThe management of Acute Coronary Syndrome (ACS) aims to minimize myocardial damage, preserve myocardial function, and prevent complications.Initial ManagementInpatient management involves continuous cardiac monitoring, preferably in an ICU, focusing on blood pressure, serum sodium, potassium, and creatinine levels, and urine output. Ongoing pharmacologic management is crucial for stabilizing the patient.Supplemental Oxygen: Administer supplemental oxygen if oxygen saturation is...
42
Atherosclerosis IV: Nursing Management01:23

Atherosclerosis IV: Nursing Management

90
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...
90

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Microplastic contamination in freshwater fish and human health implications: a global and Indian perspective.

Environmental science and pollution research international·2026
Same author

Early versus Late starting of Direct Oral Anticoagulants after breakthrough ischemic stroke: A Target Trial Analysis from the ASPERA-R Study.

International journal of stroke : official journal of the International Stroke Society·2026
Same author

Artificial intelligence enabled performance evaluation of an enhanced SPR biosensor for malaria diagnosis.

Scientific reports·2026
Same author

Intranasal Autologous Conditioned Serum Attenuates Memory Impairment After mPFC Ischemia in Mice.

Basic and clinical neuroscience·2026
Same author

Stroke in young adults in the Middle East and North Africa region: What is the difference from elsewhere? A report from sixteen centers experiences.

Frontiers in neurology·2026
Same author

Natural Polymer-Based Mechanically Strong Hydrogel with Fast Self-Healing for Heavy Metal Ions Removal and Supercapacitor Applications.

Polymers·2026

Related Experiment Video

Updated: Sep 29, 2025

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
09:21

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke

Published on: January 18, 2018

12.2K

Did COVID-19 impact stroke services? A multicenter study.

Hossam Shokri1, Nevine El Nahas2, Ahmed El Basiony3

  • 1Faculty of Medicine, Ain Shams University, Cairo, Egypt. hossam.shokri@med.asu.edu.eg.

Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology
|March 26, 2022
PubMed
Summary

The COVID-19 pandemic negatively impacted acute stroke care, reducing patient numbers and increasing treatment times. Stroke outcomes worsened, although some management types were less affected.

Keywords:
Acute stroke servicesHemorrhagic strokePandemic-related issuesStroke data base

More Related Videos

Author Spotlight: Assessing Ischemic Stroke Damage Through Middle Cerebral Artery Occlusion Model
05:32

Author Spotlight: Assessing Ischemic Stroke Damage Through Middle Cerebral Artery Occlusion Model

Published on: August 11, 2023

2.2K
Motor Dual-Tasks for Gait Analysis and Evaluation in Post-Stroke Patients
05:23

Motor Dual-Tasks for Gait Analysis and Evaluation in Post-Stroke Patients

Published on: March 11, 2021

2.5K

Related Experiment Videos

Last Updated: Sep 29, 2025

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
09:21

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke

Published on: January 18, 2018

12.2K
Author Spotlight: Assessing Ischemic Stroke Damage Through Middle Cerebral Artery Occlusion Model
05:32

Author Spotlight: Assessing Ischemic Stroke Damage Through Middle Cerebral Artery Occlusion Model

Published on: August 11, 2023

2.2K
Motor Dual-Tasks for Gait Analysis and Evaluation in Post-Stroke Patients
05:23

Motor Dual-Tasks for Gait Analysis and Evaluation in Post-Stroke Patients

Published on: March 11, 2021

2.5K

Area of Science:

  • Neurology
  • Public Health
  • Epidemiology

Background:

  • Acute stroke services faced disruptions during the COVID-19 pandemic.
  • Pandemic-related issues compromised stroke care delivery globally.
  • International collaboration is crucial to understand these impacts.

Purpose of the Study:

  • To investigate changes in acute stroke services during the COVID-19 pandemic.
  • To compare stroke care metrics before and during the pandemic across multiple countries.
  • To assess the impact of COVID-19 on stroke treatment times and patient outcomes.

Main Methods:

  • Cross-sectional, observational, retrospective study involving eight countries.
  • Comparison of one year before and one year during the COVID-19 pandemic.
  • Analysis of key performance indicators: onset to door (OTD), door to needle (DTN), door to groin (DTG), hospital stay, National Institute of Health Stroke Scale (NIHSS), and modified Rankin score (mRS).

Main Results:

  • Reduced patient numbers, lower median age, and higher admission NIHSS during the pandemic.
  • Increased hemorrhagic stroke incidence; OTD and DTG remained unchanged, but DTN time lengthened.
  • Decreased rtPA administration, increased thrombectomy frequency, shorter hospital stays, and less favorable mRS outcomes at discharge and 3 months.

Conclusions:

  • COVID-19 had variable effects on stroke services, with negative impacts on patient volume, treatment times, and outcomes.
  • Some aspects of stroke management, like treatment modality, were less affected.
  • Understanding these changes is vital for optimizing acute stroke care during public health crises.