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Related Concept Videos

Heart Failure I: Introduction01:27

Heart Failure I: Introduction

Heart failure refers to a clinical syndrome caused by structural or functional cardiac disorders that prevent the heart from pumping an adequate amount of blood to meet the body's metabolic needs. This condition often arises from myocardial infarction or ischemia, leading to decreased cardiac output, reduced tissue perfusion, impaired gas exchange, fluid volume imbalance, and decreased functional ability.Heart failure can result from disruptions in the mechanisms that regulate cardiac output...
Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
Imbalances in Cardiac Output01:26

Imbalances in Cardiac Output

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 blood...
Hypertension and Regulation of Blood Pressure01:18

Hypertension and Regulation of Blood Pressure

Hypertension, the most common cardiovascular disease, is diagnosed through repeated measurements of elevated blood pressure. Its risks, including damage to the kidney, heart, and brain, are directly proportional to blood pressure levels. Starting from 115/75 mm Hg, the risk of cardiovascular disease doubles with each increment of 20/10 mm Hg. The diagnosis relies on blood pressure measurements, not on patient symptoms, as hypertension is often asymptomatic until end-organ damage is imminent or...
Heart Failure Drugs: Diuretics01:22

Heart Failure Drugs: Diuretics

Heart failure and kidney perfusion are interconnected in a complex way. Reduced renal perfusion and venous congestion are two significant factors that contribute to renal dysfunction in heart failure. The kidneys, primarily responsible for fluid balance in the body, are adversely affected due to compromised cardiac output and increased venous pressure. In response to reduced renal perfusion, the kidneys activate neurohumoral mechanisms to restore balance. However, these mechanisms can be...

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Related Experiment Video

Updated: Jul 12, 2026

A Model of Cardiac Remodeling Through Constriction of the Abdominal Aorta in Rats
07:31

A Model of Cardiac Remodeling Through Constriction of the Abdominal Aorta in Rats

Published on: December 2, 2016

[Hypertension and cardiac failure].

C M Schannwell1, M G Hennersdorf, B E Strauer

  • 1Klinik für Kardiologie, Pneumologie und Angiologie, Universitätsklinikum Düsseldorf, Moorenstrasse 5, 40225, Düsseldorf, Deutschland. schannw@uni-duesseldorf.de

Der Internist
|August 24, 2007
PubMed
Summary

Arterial hypertension, a widespread condition, significantly increases cardiovascular risks and leads to heart failure. Effective management focuses on blood pressure control and reversing cardiac damage.

Related Experiment Videos

Last Updated: Jul 12, 2026

A Model of Cardiac Remodeling Through Constriction of the Abdominal Aorta in Rats
07:31

A Model of Cardiac Remodeling Through Constriction of the Abdominal Aorta in Rats

Published on: December 2, 2016

Area of Science:

  • Cardiology
  • Hypertension Research
  • Internal Medicine

Context:

  • Arterial hypertension affects 26% of the global population, with incidence rising with age.
  • It is a primary driver of cardiovascular morbidity and mortality.
  • The disease progresses asymptomatically, leading to severe cardiac complications.

Purpose:

  • To detail the pathophysiology of arterial hypertension and its cardiac manifestations.
  • To outline clinical symptoms, diagnostic methods, and therapeutic strategies.
  • To explore medicinal options for managing hypertension and its sequelae.

Summary:

  • Arterial hypertension causes significant cardiovascular damage, including coronary artery disease and heart failure.
  • Cardiac manifestations include left ventricular hypertrophy and fibrosis.
  • Effective screening, diagnosis, and treatment are crucial for managing this chronic disease.

Impact:

  • Highlights the critical link between hypertension and heart failure, a leading cause of mortality.
  • Emphasizes the need for early detection and intervention to mitigate cardiac damage.
  • Provides a comprehensive overview of diagnostic and therapeutic approaches for arterial hypertension and cardiac failure.