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Aortic Regurgitation I: Introduction

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 Regurgitation I: Introduction

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...

Chambers of the Heart

Chambers of the Heart

The human heart is a complex organ made up of four chambers: the right and left atria and the right and left ventricles. These internal chambers are separated by partitions known as the interatrial and interventricular septa. The exterior of the heart features a groove known as the coronary sulcus that demarcates the atria from the ventricles, while the anterior and posterior interventricular sulci distinguish between the two ventricles.
Deoxygenated blood from the body is received in the right...

Coronary Circulation

Coronary Circulation

The heart, an organ critical to survival, gets nourishment not from the blood it pumps but from a separate circulation system known as coronary circulation. This is the shortest circulation in the body and is responsible for supplying the heart with the nutrients it needs to function effectively.
Coronary circulation begins at the base of the aorta, where two main arteries arise—the left and right coronary arteries. These arteries encircle the heart in the coronary sulcus and supply the...

Layers of the Heart Wall

Layers of the Heart Wall

The heart wall comprises three distinct layers: the epicardium, myocardium, and endocardium. The outermost layer, the epicardium, is the visceral layer of the serous pericardium, featuring a thin, transparent mesothelial surface and an inner layer of areolar connective tissue with fat deposits that increase with age.
The myocardium, the thickest layer, consists of cardiac muscle cells interconnected by intercalated discs and crisscrossing connective tissue fibers. These muscle fibers contract...

Imaging Studies for Cardiovascular System I:Echocardiography

Imaging Studies for Cardiovascular System I:Echocardiography

Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion, evaluates...

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Related Experiment Video

Updated: Jun 11, 2026

Assessing Intracardiac Vortices with High Frame-Rate Echocardiography-Derived Blood Speckle Imaging in Newborns

Assessing Intracardiac Vortices with High Frame-Rate Echocardiography-Derived Blood Speckle Imaging in Newborns

Published on: December 22, 2023

Dynamic circle image in left ventricle outflow tract.

Hekim Karapinar¹, Zekeriya Kaya, Soe Moe Aung

¹Department of Cardiology, Van High Specialty Education and Research Hospital, Van, Turkey.

Echocardiography (Mount Kisco, N.Y.)

|June 30, 2010

Summary

This summary is machine-generated.

A ruptured sinus of Valsalva caused a freely floating mass in the left ventricular outflow tract, leading to effort dyspnea. This rare cardiac anomaly requires prompt diagnosis via advanced echocardiography.

More Related Videos

Transthoracic Echocardiographic Examination in the Rabbit Model

Transthoracic Echocardiographic Examination in the Rabbit Model

Published on: June 1, 2019

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Last Updated: Jun 11, 2026

Assessing Intracardiac Vortices with High Frame-Rate Echocardiography-Derived Blood Speckle Imaging in Newborns

Assessing Intracardiac Vortices with High Frame-Rate Echocardiography-Derived Blood Speckle Imaging in Newborns

Published on: December 22, 2023

Transthoracic Echocardiographic Examination in the Rabbit Model

Transthoracic Echocardiographic Examination in the Rabbit Model

Published on: June 1, 2019

Area of Science:

Cardiology
Cardiac Surgery
Medical Imaging

Background:

A 46-year-old male presented with exertional dyspnea.
Transthoracic echocardiography revealed an unusual mobile intracardiac mass.
The mass appeared to float within the left ventricular outflow tract (LVOT).

Observation:

The mass exhibited dynamic behavior, disappearing during systole and reappearing during diastole.
Color Doppler imaging demonstrated turbulent flow within the mass.
Transesophageal echocardiography confirmed normal aortic valve function and dimensions of the aortic root.

Findings:

A prolapsed left sinus of Valsalva was identified as the source of the mass.
The sinus of Valsalva had ruptured into the left ventricular outflow tract.
The mobile mass was determined to be a prolapsed and ruptured sinus of Valsalva.

Implications:

This case highlights a rare cause of intracardiac masses and exertional dyspnea.
Accurate diagnosis relies on advanced echocardiographic techniques, particularly transesophageal echocardiography.
Surgical or interventional management is necessary for such ruptured sinus of Valsalva defects.