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Related Concept Videos

Regulation of the Cardiovascular System01:27

Regulation of the Cardiovascular System

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...
Pathophysiology of Cardiac Performance01:29

Pathophysiology of Cardiac Performance

Typical heart performance is influenced by heart rate, rhythm, myocardial contraction, and metabolism or blood flow. The cardiac muscle exhibits distinct electrophysiological features, including pacemaker activity and calcium channel control, which play a vital role in the heart's response to various drugs. The autonomic nervous system, comprising the sympathetic and parasympathetic branches, regulates heart rate. Sympathetic activation increases heart rate, while parasympathetic activation...
Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
Exercise and Cardiac Output01:17

Exercise and Cardiac Output

Regular physical activity is essential for maintaining cardiovascular health, with aerobic exercises being particularly effective. According to the American Heart Association, 150 minutes of moderate to intense aerobic exercise per week is recommended for a healthy heart. Aerobic activities may include brisk walking, running, bicycling, cross-country skiing, and swimming, ideally performed three to five times per week.
Sustained exercise increases the muscles' oxygen demand, which can be met...
Coronary Artery Disease II: Pathophysiology01:26

Coronary Artery Disease II: Pathophysiology

Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...

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Updated: May 25, 2026

Exercise Test for Evaluation of the Functional Efficacy of the Pig Cardiovascular System
02:47

Exercise Test for Evaluation of the Functional Efficacy of the Pig Cardiovascular System

Published on: May 12, 2023

Advancing cardiovascular research.

Michael S Lauer1

  • 1Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD.

Chest
|February 9, 2012
PubMed
Summary
This summary is machine-generated.

Cardiovascular disease (CVD) is evolving, with changing patient demographics and disease patterns. Research must adapt to new challenges and opportunities in CVD science and clinical care.

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Last Updated: May 25, 2026

Exercise Test for Evaluation of the Functional Efficacy of the Pig Cardiovascular System
02:47

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Published on: May 12, 2023

Cardiac Loading using Passive Left Atrial Pressurization and Passive Afterload for Graft Assessment
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Cardiac Loading using Passive Left Atrial Pressurization and Passive Afterload for Graft Assessment

Published on: August 2, 2024

Area of Science:

  • Cardiovascular Science
  • Clinical Cardiology
  • Public Health

Background:

  • Cardiovascular disease (CVD) morbidity and mortality have declined over 50 years.
  • CVD remains the leading global cause of death and disability.
  • Patient demographics are shifting towards an older, heavier, and more diverse population.

Purpose of the Study:

  • To outline the evolving landscape of cardiovascular disease.
  • To identify emerging challenges and opportunities for cardiovascular scientists.
  • To adapt research and clinical strategies to current trends in CVD.

Main Methods:

  • Review of trends in cardiovascular science and clinical practice.
  • Analysis of demographic shifts impacting cardiovascular health.
  • Identification of key areas for future research and innovation.

Main Results:

  • The "typical" cardiac patient profile has changed significantly.
  • Acute coronary syndrome, hypertension, heart failure, and atrial fibrillation are increasingly prevalent.
  • Degenerative and congenital structural heart diseases now dominate over rheumatic disease.

Conclusions:

  • Cardiovascular science faces new challenges due to evolving disease mechanisms and patient populations.
  • High-throughput technologies and evidence-based strategies are crucial.
  • Innovation is essential to address the global CVD epidemic amidst resource constraints.