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Related Concept Videos

Overview of the Cardiovascular System01:14

Overview of the Cardiovascular System

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The cardiovascular system is a vital transportation system in the body. It comprises the heart and blood vessels and facilitates the exchange of gases, nutrients, and waste products.
Heart
The heart is the central pump of the cardiovascular system that circulates blood throughout the body. It comprises two atria receiving the blood and two ventricles pumping blood out of the heart. Their rhythmic contractions, called heartbeats, ensure that blood flow remains continuous.
Blood Vessels
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Regulation of the Cardiovascular System01:27

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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.
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Exercise and Cardiovascular Response01:20

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Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
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Psychoneuroimmunology: Cardiovascular Disease01:27

Psychoneuroimmunology: Cardiovascular Disease

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Psychoneuroimmunology (PNI) is a multidisciplinary field that examines how psychological factors, particularly stress, interact with the immune system and impact physical health. Research in PNI has shown that chronic or traumatic stress can disrupt both the hypothalamic-pituitary-adrenal axis and the sympathetic nervous system. These disruptions contribute to serious health conditions, including cardiovascular diseases.
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Assessment of the Cardiovascular System II: Inspection01:29

Assessment of the Cardiovascular System II: Inspection

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Inspection is the initial step in assessing the cardiovascular system. It involves a detailed visual examination that provides crucial information about a patient's circulatory and cardiac health. This systematic process, conducted from head to toe, helps identify signs of cardiovascular conditions by observing physical appearance, skin and mucous membranes, jugular and carotid pulsations, chest symmetry, and the condition of the extremities.
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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
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Assessment of infarct characteristics and left ventricular function on serial CMR in STEMI patients treated with post-PCI sonothrombolysis: post-hoc analysis of two randomized controlled trials.

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Related Experiment Video

Updated: Jan 21, 2026

In Silico Clinical Trials for Cardiovascular Disease
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Cardiovascular Sonothrombolysis.

Thomas R Porter1, Wilson Mathias2

  • 1Department of Internal Medicine, Division of Cardiovascular Medicine, University of Nebraska Medical Center, 982265 Nebraska Medical Center, Omaha, NE, 68198, USA. trporter@unmc.edu.

Current Cardiology Reports
|July 26, 2019
PubMed
Summary
This summary is machine-generated.

Sonothrombolysis, using diagnostic ultrasound, improves blood flow and reduces heart damage in ST-elevation myocardial infarction patients. This therapy enhances outcomes when combined with standard treatments for acute coronary syndromes.

Keywords:
DiagnosticMicrobubblesPerfluorocarbonsSonothrombolysisTargeted therapyUltrasound

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Area of Science:

  • Cardiology
  • Medical Ultrasound
  • Biomedical Engineering

Background:

  • Acute coronary syndromes require rapid reperfusion therapies.
  • Percutaneous coronary intervention is a standard treatment for ST-elevation myocardial infarction (STEMI).
  • Adjunctive therapies are explored to improve outcomes in STEMI.

Purpose of the Study:

  • To review pre-clinical and clinical evidence for sonothrombolysis in acute coronary syndromes.
  • To evaluate sonothrombolysis as an adjunct to emergent therapies.
  • To assess the impact of sonothrombolysis on myocardial infarction size and left ventricular function.

Main Methods:

  • Review of pre-clinical studies and initial clinical trials.
  • Analysis of diagnostic ultrasound (DUS) with high mechanical index impulses.
  • Inclusion of patients with ST-elevation myocardial infarction (STEMI) undergoing percutaneous coronary intervention.
  • Assessment of infarct vessel patency and microvascular flow.
  • Magnetic resonance imaging (MRI) for myocardial infarction size.
  • Evaluation of left ventricular systolic function at 6-month follow-up.

Main Results:

  • Diagnostic ultrasound (DUS) with high mechanical index impulses improved infarct vessel patency and microvascular flow in STEMI patients.
  • Randomized trials showed reduced myocardial infarction size (assessed by MRI) with sonothrombolysis.
  • Sonothrombolysis was associated with better left ventricular systolic function at 6 months.
  • Improved early epicardial coronary artery patency was observed.

Conclusions:

  • Sonothrombolysis shows potential as an effective adjunct therapy for STEMI.
  • The technique may reduce myocardial infarction size and improve left ventricular remodeling.
  • Further investigation into sonothrombolysis in acute coronary syndromes is warranted.