Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

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...

Imaging Studies for Cardiovascular System II:Types of Echocardiography

Imaging Studies for Cardiovascular System II:Types of Echocardiography

Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for diagnosing...

Cardiovascular System Abnormal Findings II: Auscultation

Cardiovascular System Abnormal Findings II: Auscultation

Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
Abnormal Heart Sounds
Gallops:

Mitral Stenosis II: Clinical features and Diagnostic Tests

Mitral Stenosis II: Clinical features and Diagnostic Tests

Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Management of patients with extensive locally advanced thyroid cancer: results of multimodal treatments.

Journal of endocrinological investigation·2023

Same author

Levosimendan in intensive care and emergency medicine: literature update and expert recommendations for optimal efficacy and safety.

Journal of anesthesia, analgesia and critical care·2023

Same author

Reply letter to Dr. Xu et al. on role of circulating endothelial progenitor cells in the reparative mechanisms of stable ischemic myocardium.

International journal of cardiology·2018

Same author

Role of circulating endothelial progenitor cells in the reparative mechanisms of stable ischemic myocardium.

International journal of cardiology·2017

Same author

Desmopressin after cardiac surgery in bleeding patients. A multicenter randomized trial.

Acta anaesthesiologica Scandinavica·2016

Same author

Heart rate reduction with esmolol is associated with improved arterial elastance in patients with septic shock: a prospective observational study.

Intensive care medicine·2016

Search research articles

Related Experiment Video

Updated: Jun 13, 2026

Echocardiographic Approaches and Protocols for Comprehensive Phenotypic Characterization of Valvular Heart Disease in Mice

Echocardiographic Approaches and Protocols for Comprehensive Phenotypic Characterization of Valvular Heart Disease in Mice

Published on: February 14, 2017

The "Mickey Mouse" aortic root: a peculiar transesophageal echo finding.

F Guarracino¹, S Pratali, R Baldassarri

¹Unit of Cardiothoracic Anesthesia and Intensive Care Medicine, University Hospital of Pisa, Pisa, Italy. fabiodoc64@hotmail.com

Minerva Anestesiologica

|April 17, 2010

Summary

Dilated aortic root, specifically the right sinus of Valsalva, can cause severe aortic valve regurgitation. Transesophageal echocardiography can identify this using a "Mickey Mouse" sign, guiding surgical repair.

More Related Videos

Echocardiographic Measurement of Right Ventricular Diastolic Parameters in Mouse

Echocardiographic Measurement of Right Ventricular Diastolic Parameters in Mouse

Published on: April 27, 2019

A Pipeline to Characterize Structural Heart Defects in the Fetal Mouse

A Pipeline to Characterize Structural Heart Defects in the Fetal Mouse

Published on: December 16, 2022

Related Experiment Videos

Last Updated: Jun 13, 2026

Echocardiographic Approaches and Protocols for Comprehensive Phenotypic Characterization of Valvular Heart Disease in Mice

Echocardiographic Approaches and Protocols for Comprehensive Phenotypic Characterization of Valvular Heart Disease in Mice

Published on: February 14, 2017

Echocardiographic Measurement of Right Ventricular Diastolic Parameters in Mouse

Echocardiographic Measurement of Right Ventricular Diastolic Parameters in Mouse

Published on: April 27, 2019

A Pipeline to Characterize Structural Heart Defects in the Fetal Mouse

A Pipeline to Characterize Structural Heart Defects in the Fetal Mouse

Published on: December 16, 2022

Area of Science:

Cardiology
Medical Imaging
Cardiac Surgery

Background:

Aortic valve regurgitation can stem from various mechanisms, including sinus of Valsalva dilatation.
Accurate diagnosis is crucial for effective aortic root surgery planning.

Observation:

Transesophageal echocardiography (TEE) offers detailed insights into aortic valve dysfunction and aortic root anatomy.
Dilatation of the right sinus of Valsalva presents a characteristic "Mickey Mouse" appearance on TEE in the short axis view.

Findings:

The "Mickey Mouse" sign on TEE is a reliable indicator of right sinus of Valsalva dilatation.
This specific echocardiographic finding helps elucidate the mechanism of aortic valve dysfunction.

Implications:

Recognizing the "Mickey Mouse" sign aids in diagnosing a specific cause of aortic valve regurgitation.
This facilitates the selection of appropriate surgical techniques for aortic root repair.