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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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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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Ischemic Heart Disease: Overview01:17

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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...
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Cardiac Output and Stroke Volume01:11

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Cardiac output (CO) is an integral aspect of human physiology, reflecting the heart's efficiency and responsiveness to the body's needs. It represents the volume of blood that the left or right ventricle ejects into the aorta or pulmonary trunk each minute. The CO is calculated by multiplying the heart rate (HR)—the number of heartbeats per minute—by the stroke volume (SV)—the amount of blood pumped out with each heartbeat.
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Prevalence and Incidence01:08

Prevalence and Incidence

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In statistical epidemiology and health sciences, two essential metrics—prevalence and incidence—are fundamental for understanding disease dynamics within a population. These measures enable public health officials, epidemiologists, and researchers to assess the burden of diseases, allocate resources effectively, and design impactful public health policies and interventions.
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Updated: Sep 1, 2025

A Middle Cerebral Artery Occlusion Technique for Inducing Post-stroke Depression in Rats
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Global stroke statistics 2022.

Tharshanah Thayabaranathan1, Joosup Kim1,2, Dominique A Cadilhac1,2

  • 1Stroke and Ageing Research, Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia.

International Journal of Stroke : Official Journal of the International Stroke Society
|August 17, 2022
PubMed
Summary
This summary is machine-generated.

This study updates stroke incidence, case-fatality, and mortality rates, highlighting disparities in low- and middle-income countries. New national stroke registries were found, but data remain limited, emphasizing the need for more research and policy attention.

Keywords:
Incidencecase-fatality rateepidemiologymortalitystrokeworldwide

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Area of Science:

  • Epidemiology
  • Public Health
  • Global Health

Background:

  • Contemporary stroke epidemiology data and national clinical registries are crucial for evidence-based practice and policy.
  • Understanding stroke burden requires up-to-date incidence, case-fatality, and mortality rates.
  • Global stroke data availability influences healthcare strategies and resource allocation.

Purpose of the Study:

  • To update global stroke incidence, case-fatality, and mortality rates.
  • To identify newly established national stroke clinical registries worldwide.
  • To assess current data availability for stroke epidemiology and clinical data collection.

Main Methods:

  • Systematic literature search for stroke incidence and case-fatality studies (Nov 2018-Dec 2021).
  • Updated search for national stroke clinical registries (Feb 2015-Jan 2022).
  • Extracted mortality data (ICD-9/10) from WHO and population denominators from UN/WHO for rate calculations.

Main Results:

  • New incidence data from Chile and France; case-fatality data from Chile and Kenya.
  • Most current mortality data available for up to 2020 across 29 countries; four countries reported mortality for the first time.
  • Seven new national stroke registries identified, primarily in high-income nations, with limited data.

Conclusions:

  • Updated stroke data reveal persistent disparities and the significant burden in low- and middle-income countries.
  • Despite identifying more registries, the information yielded was limited, indicating data gaps.
  • Addressing data scarcity and country-specific rankings is essential to stimulate research and policy focus on stroke.