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Related Concept Videos

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...
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...
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...
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...
Mitral Regurgitation III: Medical Management01:25

Mitral Regurgitation III: Medical Management

Mitral regurgitation (MR) is characterized by retrograde blood circulation from the left ventricle into the left atrium due to inadequate mitral valve closure. The severity of the condition, symptoms, and underlying cause determine treatment strategies.Monitoring and Pharmacological TreatmentPatients with mild to moderate MR typically do not need immediate intervention but regular monitoring to assess progression and guide treatment. Patients with mild MR should have an echocardiogram every 3-5...

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Related Experiment Video

Updated: Jun 8, 2026

Studying Left Ventricular Reverse Remodeling by Aortic Debanding in Rodents
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Published on: July 14, 2021

[Left ventricular mass regression after aortic valve replacement].

Kerem Oral1, Aşkın Ali Korkmaz, Burak Onan

  • 1Florence Nightingale Hastanesi, Kalp ve Damar Cerrahisi Bölümü, İstanbul, Türkiye.

Anadolu Kardiyoloji Dergisi : AKD = the Anatolian Journal of Cardiology
|October 9, 2010
PubMed
Summary

Aortic valve replacement (AVR) with three different valve types resulted in similar left ventricular mass index (LVMI) regression. Further long-term studies are recommended to fully assess outcomes after AVR.

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Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Biomedical Engineering

Background:

  • Left ventricular hypertrophy is a common complication of aortic valve disease.
  • Aortic valve replacement (AVR) is a standard treatment for severe aortic stenosis and regurgitation.
  • Different prosthetic valves are available, each with potential implications for cardiac remodeling.

Purpose of the Study:

  • To compare the regression of left ventricular mass index (LVMI) after AVR using three distinct prosthetic valve types.
  • To evaluate the mid-term efficacy of different aortic valve prostheses in reverse cardiac remodeling.

Main Methods:

  • An observational study involving 55 patients undergoing AVR.
  • Patients were divided into three groups based on the prosthetic valve used: bioprosthesis, mono-leaflet mechanical, and bi-leaflet mechanical.
  • Left ventricular mass index (LVMI) was assessed preoperatively and postoperatively using echocardiography.

Main Results:

  • All three groups demonstrated statistically significant regression of LVMI post-AVR (p<0.0001).
  • Despite differences in patient age and valve types, no significant difference in the degree of LVMI regression was observed among the groups (p=0.054).
  • Significant LVMI reduction was noted in all patient groups, irrespective of the prosthetic valve implanted.

Conclusions:

  • Mid-term outcomes indicate that AVR with bioprosthetic, mono-leaflet mechanical, or bi-leaflet mechanical valves leads to comparable regression of left ventricular mass.
  • The choice of aortic valve prosthesis did not significantly impact LVMI regression in this study.
  • Long-term data from a larger patient cohort are needed to definitively assess the long-term impact of different valve types on cardiac remodeling after AVR.