Related Experiment Video

Updated: Jul 6, 2026

Measuring the Stiffness of Ex Vivo Mouse Aortas Using Atomic Force Microscopy
10:35

Measuring the Stiffness of Ex Vivo Mouse Aortas Using Atomic Force Microscopy

Published on: October 19, 2016

Arterial stiffness is associated with left atrial size in hypertensive patients

P Lantelme1, S Laurent, C Besnard

  • 1Service de cardiologie, Hôpital de la Croix-Rousse, Lyon, France. pierrelantelme@hotmail.com

Archives of Cardiovascular Diseases
|April 9, 2008
PubMed

Insights

Arterial stiffness, a predictor of stroke, is linked to left atrial enlargement, a risk factor for atrial fibrillation (AF). This suggests AF may connect arterial stiffness to stroke, aiding prevention strategies.

Area of Science:

  • Cardiology
  • Vascular Medicine
  • Hypertension Research

Background:

  • Arterial stiffness is a key predictor of cardiovascular events, particularly stroke.
  • Increased arterial stiffness may lead to carotid atherosclerosis or cardiac issues like left atrial enlargement, increasing atrial fibrillation (AF) risk.

Purpose of the Study:

  • To investigate the relationship between arterial stiffness, pulse pressure, and left atrial size.
  • To explore left atrial size as a determinant of AF risk.

Main Methods:

  • Arterial stiffness assessed via pulse wave velocity (PWV) and pulse pressure (PP).
  • Left atrial size (diameter, LAD) measured.
  • Confounders including ventricular remodeling and diastolic function (NT-proBNP) analyzed.

Main Results:

  • Significant positive correlations found between left atrial diameter (LAD) and PWV (r=0.27) and 24-h PP (r=0.32) in 310 hypertensive patients.
  • LAD also correlated with left ventricular indices and NT-proBNP.
  • Multivariate analyses confirmed LAD's independent association with PWV and 24-h PP.

Conclusions:

  • Atrial fibrillation (AF) is proposed as a novel pathophysiological link between arterial stiffness and stroke.
  • Findings highlight cardiac consequences of arterial stiffness, suggesting new AF prevention approaches.
Abstract

More Related Videos

Measuring Ascending Aortic Stiffness In Vivo in Mice Using Ultrasound10:08

Measuring Ascending Aortic Stiffness In Vivo in Mice Using Ultrasound

Published on: December 2, 2014

Related Concept Videos

Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
Aortic Regurgitation III: Medical Management01:25

Aortic Regurgitation III: Medical Management

Aortic regurgitation (AR) is when the aortic valve does not close or seal properly, leading to backward blood circulation from the aorta into the left ventricle during diastole. Common causes of AR include rheumatic heart disease, congenital valve defects, and aortic root dilation. Managing AR requires a multifaceted approach to alleviate symptoms, preserve left ventricular function, and address the underlying cause of the regurgitation. Patients with symptomatic AR or significant left...
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 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...
Aortic Regurgitation I: Introduction01:15

Aortic Regurgitation I: Introduction

IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...