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Related Concept Videos

Cardiac Output and Stroke Volume01:11

Cardiac Output and Stroke Volume

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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.
In an average resting adult male, the typical cardiac...
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Assessment of the Cardiovascular System IV: Auscultation01:25

Assessment of the Cardiovascular System IV: Auscultation

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Cardiac auscultation is a clinical skill used to assess heart function and detect abnormalities. It involves listening to heart sounds at specific anatomical locations through a stethoscope.
Normal Heart Sounds
S1 (First Heart Sound)-
S1 is made by the closure of the mitral and tricuspid valves (atrioventricular valves), marking the beginning of systole.
S2 (Second Heart Sound)-
S2 is made by the closure of the aortic and pulmonic valves (semilunar valves), marking the end of the systole.
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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.
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...
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Regulation of the Cardiovascular System01:27

Regulation of the Cardiovascular System

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The regulation of the cardiovascular system allows the body to adapt to various demands and maintain homeostasis.
The regulation of the cardiovascular system involves the autonomic nervous system (ANS), baroreceptors, and chemoreceptors, ensuring that heart rate and blood pressure are appropriately modulated in response to varying physiological demands.
The ANS comprises two main divisions: the sympathetic and parasympathetic nervous systems. The sympathetic nervous system enhances...
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Imbalances in Cardiac Output01:26

Imbalances in Cardiac Output

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The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send...
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Assessment of the Cardiovascular System I: Subjective Data01:23

Assessment of the Cardiovascular System I: Subjective Data

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A thorough health history and physical assessment are essential for identifying cardiovascular disease (CVD) symptoms and distinguishing them from other health issues.
Initial Enquiry
Ask the patient about their primary concern and thoroughly explore all reported symptoms.
Medical History
Investigate past illnesses affecting the cardiovascular system, such as angina, anemia, rheumatic fever, congenital heart disease, stroke, thrombophlebitis, dysrhythmias, varicosities
Inquire about symptoms...
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Related Experiment Video

Updated: Jun 7, 2025

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Cardiovascular Workforce Sustainability Sector Consultation: Recommendations From an Australian Stakeholder Summit.

Celine F Santiago1, Lauren C Blekkenhorst2, Meng-Ping Hsu3

  • 1Victor Chang Cardiac Research Institute, Sydney, NSW, Australia; School of Clinical Medicine, Faculty of Medicine and Health, University of New South Wales, Sydney, NSW, Australia.

Heart, Lung & Circulation
|November 16, 2024
PubMed
Summary

Cardiovascular research faces retention challenges, with many early-career professionals considering leaving. A national summit proposed strategies focusing on well-being, development, and collaboration for a sustainable future.

Keywords:
Cardiovascular diseaseEarly and mid-career researchersResearch sectorStrokeWorkforce sustainability

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Area of Science:

  • Cardiovascular research
  • Health workforce strategy
  • Medical research sector

Background:

  • A 2023 summit addressed cardiovascular research workforce sustainability.
  • A prior study revealed ~70% of early/mid-career researchers considered leaving the sector.
  • Identified sector-wide challenges in career progression and retention.

Purpose of the Study:

  • To facilitate a national conversation on developing a cardiovascular research workforce sustainability strategy.
  • To identify key themes impacting career progression and retention.
  • To propose actionable recommendations for sector improvement.

Main Methods:

  • Convened a National Cardiovascular Workforce Sustainability Summit.
  • Gathered insights from summit attendees on sector-wide challenges.
  • Synthesized feedback into key themes: well-being, learning/development, resource allocation.

Main Results:

  • Summit highlighted significant challenges in well-being, career satisfaction, learning, development, and resource allocation.
  • A need for increased collaboration and multidisciplinary research approaches was identified.
  • Key recommendations focused on monitoring metrics, unified advocacy, and strategic training programs.

Conclusions:

  • The cardiovascular research sector requires a strategic approach to enhance workforce sustainability.
  • Addressing well-being, career progression, and resource allocation is crucial for retention.
  • Collaborative efforts and targeted training are essential for a thriving research environment.