The heart in atherosclerotic renovascular disease

Darren Green1, Philip A Kalra

  • 1Salford Royal Hospital, Stott Lane, M6 8HD, UK.

Insights

Atherosclerotic renovascular disease (ARVD) significantly increases cardiovascular risks and mortality. While revascularization shows no broad benefit, identifying specific patient subgroups for this intervention is crucial for improved cardiac outcomes.

Area of Science:

  • Cardiology
  • Nephrology
  • Vascular Medicine

Background:

  • Atherosclerotic renovascular disease (ARVD) is linked to elevated cardiovascular disease (CVD) and mortality.
  • ARVD is a primary cause of secondary hypertension and prevalent in elderly heart failure patients.
  • Most ARVD patients (95%) exhibit cardiac abnormalities, notably left ventricular hypertrophy (LVH) and diastolic dysfunction, potentially due to renin-angiotensin system overactivity.

Purpose of the Study:

  • To review the impact of atherosclerotic renovascular disease on cardiovascular health.
  • To evaluate the current evidence on renal artery revascularization versus medical therapy for ARVD.
  • To identify potential strategies for optimizing ARVD patient management.

Main Methods:

  • Literature review of randomized trials and case series concerning ARVD.
  • Analysis of the association between ARVD, cardiovascular events, and cardiac structure/function.
  • Examination of the role of the renin-angiotensin pathway in ARVD-related cardiac changes.

Main Results:

  • Randomized trials indicate no cardiovascular event reduction with renal artery revascularization compared to medical therapy.
  • Small case series suggest potential cardiac benefits of revascularization in specific ARVD cases.
  • A strong correlation exists between ARVD presence and CVD severity, with significant cardiac abnormalities in most patients.

Conclusions:

  • Current evidence does not support routine renal artery revascularization for all ARVD patients.
  • Further research is needed to identify ARVD subgroups who may benefit from revascularization.
  • Targeted therapeutic strategies focusing on specific patient profiles are essential for improving outcomes in ARVD.

Related Concept Videos

Coronary Artery Disease II: Pathophysiology01:26

Coronary Artery Disease II: Pathophysiology

Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
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...
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...
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests01:27

Atherosclerosis II: Clinical Manifestations and Diagnostic Tests

Atherosclerosis is a progressive disorder that leads to the thickening and narrowing of arterial walls due to plaque buildup. This condition can cause various symptoms depending on the arteries affected:Coronary Artery Disease (CAD): This condition affects the coronary arteries and may lead to chest pain (angina), shortness of breath (dyspnea), heart attacks, and other heart disease symptoms.Cerebrovascular Disease: This affects blood flow to the brain, causing transient ischemic attacks (TIAs)...
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System01:26

Heart Failure Drugs: Inhibitors of Renin-Angiotensin System

The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
Atherosclerosis I: Introduction01:30

Atherosclerosis I: Introduction

Atherosclerosis is a progressive disorder characterized by the buildup of plaques on the arterial inner wall, causing them to narrow and harden over time. These plaques comprise lipids, calcium, blood components, carbohydrates, and fibrous tissue. The process primarily affects the intima of large and medium-sized arteries, reducing blood flow in any artery.Etiology and risk factorsThe cause of atherosclerosis is multifactorial, involving a complex interplay among endothelial injury, lipid...