Pathophysiology of Hypertensive Heart Disease: Beyond Left Ventricular Hypertrophy

Chike C Nwabuo1, Ramachandran S Vasan2,3,4

  • 1Ronin Institute, Montclair, NJ, USA.

Insights

Hypertensive heart disease (HHD) is a growing concern due to rising hypertension prevalence. Understanding HHD

Area of Science:

  • Cardiology
  • Hypertension Research
  • Pathophysiology

Background:

  • Hypertensive heart disease (HHD) is a major contributor to cardiovascular morbidity and mortality.
  • Increasing life expectancy and hypertension burden necessitate a deeper understanding of HHD.
  • Historically, focus has been on left ventricular hypertrophy (LVH), but HHD involves broader organ damage.

Purpose of the Study:

  • To review the structural and functional alterations in the cardiac and vascular systems that define HHD.
  • To underscore the underlying pathophysiology of hypertensive heart disease.
  • To provide a comprehensive overview of HHD beyond left ventricular hypertrophy.

Main Methods:

  • Literature review of studies on hypertensive heart disease.
  • Synthesis of findings on cardiac and vascular structural and functional changes.
  • Analysis of the pathophysiology of HHD.

Main Results:

  • HHD involves micro- and macroscopic myocardial alterations.
  • Structural and functional changes include cardiac fibrosis and remodeling of atria, ventricles, and arteries.
  • HHD encompasses a spectrum of target-organ damage beyond LVH.

Conclusions:

  • Hypertensive heart disease is a complex condition with widespread cardiovascular impact.
  • A comprehensive understanding of HHD's features and mechanisms is crucial for managing cardiovascular disease.
  • Further research into HHD pathophysiology is essential given projected increases in hypertension.
Abstract

Related Concept Videos

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...
603
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...
2.6K
Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
307
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,...
637
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...
615
Mitral Regurgitation I: Introduction01:20

Mitral Regurgitation I: Introduction

Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...
312