Immunopathogenesis of HIV-related heart muscle disease: current perspectives

Peter F Currie1, Nicholas A Boon

  • 1Perth Royal Infirmary, Perth, UK.

Insights

As HIV survival improves, heart muscle disease (cardiomyopathy) is a growing concern. This review explores the complex causes of HIV-associated cardiomyopathy, a serious condition affecting HIV patients.

Area of Science:

  • Cardiology
  • Infectious Diseases
  • Immunology

Background:

  • Antiretroviral therapies enhance survival for HIV patients.
  • Increased survival leads to higher risk of end-organ damage, including heart muscle disease.
  • HIV-associated cardiomyopathy is a significant cardiovascular complication with a poor prognosis.

Purpose of the Study:

  • To examine the immunopathogenesis of HIV-associated cardiomyopathy.
  • To understand the complex and multifactorial causes of heart muscle disease in HIV patients.

Main Methods:

  • Literature review of current understanding.
  • Analysis of immunopathogenesis mechanisms.

Main Results:

  • HIV-associated cardiomyopathy presents as dilated cardiomyopathy or ventricular dysfunction.
  • It affects up to 5% of HIV patients, leading to heart failure.
  • The exact cause is complex and multifactorial, involving immune system pathways.

Conclusions:

  • HIV-associated cardiomyopathy is an emerging and serious complication.
  • Understanding its immunopathogenesis is crucial for patient outcomes.
  • Further research is needed to clarify the multifactorial causes.

Related Concept Videos

Myocarditis I: Introduction01:21

Myocarditis I: Introduction

Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...
Myocarditis III: Medical Management01:14

Myocarditis III: Medical Management

Myocarditis: Comprehensive Medical ManagementMyocarditis, the heart muscle inflammation, requires a comprehensive medical management strategy that addresses the underlying cause, provides supportive care, manages symptoms, and reduces cardiac workload.Infections and Autoimmune CausesAdminister appropriate antimicrobial therapy when an infectious agent causes myocarditis. For instance, penicillin treats infections caused by Group A Streptococcus. In cases where autoimmune processes are...
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...
Rheumatic Heart Disease I: Introduction01:23

Rheumatic Heart Disease I: Introduction

Rheumatic heart disease or RHD is a chronic condition that results from rheumatic fever, causing permanent damage to the heart valves.Etiology and Risk FactorsIt primarily arises from rheumatic fever, an inflammatory disease that can develop after untreated or inadequately treated group A streptococcal (GAS) pharyngitis. Streptococcus spreads through direct contact with oral or respiratory secretions. While the bacteria are the causative agents, factors like malnutrition, overcrowding, poor...
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...
Ischemic Heart Disease: Overview01:17

Ischemic Heart Disease: Overview

Ischemic heart disease occurs when the heart's blood supply dwindles, causing an ominous lack of oxygen and nutrients. This deficiency, stemming from reduced or obstructed blood flow, spells danger, leading to heart muscle damage and dysfunction.
Atherosclerosis, the primary malefactor, orchestrates this dangerous condition. It manifests as the accumulation of fatty deposits, akin to insidious plaques, within arterial walls. As time elapses, these plaques metamorphose, hardening and narrowing...