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Related Concept Videos

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...
Hypertension II: Pathophysiology01:29

Hypertension II: Pathophysiology

Hypertension is a chronic condition in which the blood's force against artery walls is excessively high, posing risks such as heart disease. The condition's underlying mechanisms involve complex interactions among the cardiovascular, kidney, and autonomic nervous systems.Renin-Angiotensin-Aldosterone System (RAAS): This system significantly influences blood pressure regulation. When blood pressure decreases, the kidneys secrete renin. This enzyme transforms angiotensinogen, a plasma protein,...
Hypertension I: Introduction01:28

Hypertension I: Introduction

Hypertension is a widespread, long-term medical condition where blood pressure in the arteries remains elevated. It is characterized by systolic blood pressure readings of 130 mm Hg or above or diastolic blood pressure (DBP) readings of 80 mm Hg or higher. Unmanaged hypertension poses significant health risks, making the distinction between primary (or essential) hypertension and secondary hypertension crucial, as their management and implications vary.Primary HypertensionPrimary hypertension,...
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...
Disorders of the Autonomic Nervous System01:18

Disorders of the Autonomic Nervous System

The autonomic nervous system (ANS) is an intricate network of nerves that controls functions such as the regulation of heart rate, digestion, and blood pressure regulation. When this system malfunctions, it can lead to various disorders that affect multiple bodily functions. One common feature of many autonomic disorders is the involvement of smooth blood vessels, which play a crucial role in regulating blood flow throughout the body.
Raynaud's disease, also known as Raynaud's phenomenon, is a...
Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

Hypertension III: Clinical Manifestations and Diagnostic Studies

Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...

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Related Experiment Video

Updated: Jul 17, 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

[The heart in hypertension].

M G Hennersdorf1, B E Strauer

  • 1Klinik für Kardiologie, Pneumologie und Angiologie, Universitätsklinikum Düsseldorf, Düsseldorf, Deutschland. hennersdorf@med.uni-duesseldorf.de

Der Internist
|January 30, 2007
PubMed
Summary

Hypertensive heart disease involves left ventricular hypertrophy and microangiopathy, leading to heart dysfunction and increased cardiovascular risk. Effective antihypertensive therapy can regress hypertrophy, reducing mortality risk.

Area of Science:

  • Cardiology
  • Hypertension Research
  • Pathophysiology

Context:

  • Hypertensive heart disease encompasses left ventricular hypertrophy, microangiopathy, and endothelial dysfunction.
  • These conditions result in diastolic and systolic dysfunction, arrhythmias, and elevated cardiovascular risk.
  • Pathophysiologically, it involves cardiac myocyte hypertrophy, interstitial fibrosis, and arteriole media hypertrophy.

Purpose:

  • To detail the pathophysiological mechanisms and clinical manifestations of hypertensive heart disease.
  • To highlight early diagnostic signs and the progression of cardiac changes due to hypertension.
  • To emphasize the therapeutic importance of antihypertensive therapy for regression of cardiac hypertrophy and risk reduction.

Summary:

  • Microangiopathy and diastolic dysfunction are identified as the earliest indicators of hypertensive heart disease.

More Related Videos

Assessing Murine Resistance Artery Function Using Pressure Myography
07:25

Assessing Murine Resistance Artery Function Using Pressure Myography

Published on: June 7, 2013

Related Experiment Videos

Last Updated: Jul 17, 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

Assessing Murine Resistance Artery Function Using Pressure Myography
07:25

Assessing Murine Resistance Artery Function Using Pressure Myography

Published on: June 7, 2013

  • Persistent arterial hypertension leads to the development of left ventricular hypertrophy, often asymmetric, followed by systolic dysfunction.
  • Clinical symptoms include angina pectoris, dyspnea, and rhythm disorders, with left ventricular hypertrophy increasing the risk of malignant ventricular arrhythmias.

    • Impact:

    • Early diagnosis and intervention are crucial for managing hypertensive heart disease.
    • Antihypertensive therapy is the cornerstone of treatment, aiming to reverse cardiac remodeling.
    • Effective management can significantly decrease mortality risk associated with hypertensive heart disease.