Subclinical nephrosclerosis is linked to left ventricular hypertrophy independent of classical atherogenic factors

Naoki Haruyama1, Akihiro Tsuchimoto1, Kosuke Masutani1

  • 1Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.

Insights

Subclinical kidney damage, indicated by global glomerulosclerosis (GGS), is linked to left ventricular hypertrophy (LVH) even in individuals with normal kidney function. Higher GGS levels significantly increase the risk of developing LVH.

Area of Science:

  • Cardiology
  • Nephrology
  • Renal Function

Background:

  • Cardio-renal interactions are increasingly recognized as significant.
  • Mild renal dysfunction is linked to left ventricular hypertrophy (LVH).
  • The relationship between LVH and subclinical renal damage remains unclear.

Purpose of the Study:

  • To investigate the association between subclinical renal damage and LVH.
  • To assess the correlation between global glomerulosclerosis (%GGS) and LVH in living kidney donors with normal renal function.

Main Methods:

  • Retrospective analysis of 238 living kidney donor pretransplant biopsies.
  • Categorization of donors into tertiles based on %GGS.
  • Measurement of left ventricular mass index (LVMI) by echocardiography.
  • Logistic regression analysis to evaluate the correlation between %GGS and LVH.

Main Results:

  • LVMI and the prevalence of left ventricular remodeling and LVH increased significantly with higher tertiles of %GGS.
  • High %GGS tertiles were associated with a sevenfold greater risk of LVH compared to low tertiles.
  • This association remained significant after adjusting for age, sex, blood pressure, GFR, and other atherogenic factors.

Conclusions:

  • An association exists between global glomerulosclerosis and left ventricular hypertrophy in individuals with normal renal function.
  • Subclinical renal damage, indicated by GGS, is a significant risk factor for LVH.
  • These findings highlight the importance of considering renal health in cardiovascular risk assessment.

Related Concept Videos

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...
805
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...
1.9K
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...
886
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...
4.8K
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,...
1.8K
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...
1.3K