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Related Concept Videos

Aneurysm III: Interprofessional Care01:26

Aneurysm III: Interprofessional Care

Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
Aneurysm I: Introduction01:30

Aneurysm I: Introduction

An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
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...

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Related Experiment Video

Updated: May 8, 2026

O-Ring Aortic Banding Versus Traditional Transverse Aortic Constriction for Modeling Pressure Overload-Induced Cardiac Hypertrophy
09:24

O-Ring Aortic Banding Versus Traditional Transverse Aortic Constriction for Modeling Pressure Overload-Induced Cardiac Hypertrophy

Published on: October 6, 2022

Sizing the aortic annulus.

Alfredo G Cerillo1, Massimiliano Mariani, Sergio Berti

  • 1Operative Unit of Cardiac Surgery and.

Annals of Cardiothoracic Surgery
|August 27, 2013
PubMed
Summary
This summary is machine-generated.

Accurate sizing of the aortic annulus is critical for transcatheter aortic valve implantation (TAVI) success. This study reviews imaging methods for precise annular measurement, highlighting alternatives to transoesophageal echocardiography.

Keywords:
Aortic valve replacementballoon aortic valvuloplastytranscatheter aortic valve implantation

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Ultrasound Imaging of the Thoracic and Abdominal Aorta in Mice to Determine Aneurysm Dimensions
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Ultrasound Imaging of the Thoracic and Abdominal Aorta in Mice to Determine Aneurysm Dimensions

Published on: March 8, 2019

Related Experiment Videos

Last Updated: May 8, 2026

O-Ring Aortic Banding Versus Traditional Transverse Aortic Constriction for Modeling Pressure Overload-Induced Cardiac Hypertrophy
09:24

O-Ring Aortic Banding Versus Traditional Transverse Aortic Constriction for Modeling Pressure Overload-Induced Cardiac Hypertrophy

Published on: October 6, 2022

Ultrasound Imaging of the Thoracic and Abdominal Aorta in Mice to Determine Aneurysm Dimensions
06:08

Ultrasound Imaging of the Thoracic and Abdominal Aorta in Mice to Determine Aneurysm Dimensions

Published on: March 8, 2019

Area of Science:

  • Cardiology
  • Radiology
  • Medical Imaging

Background:

  • Transcatheter aortic valve implantation (TAVI) is a key treatment for aortic stenosis in high-risk patients.
  • Correct prosthesis sizing is vital to prevent severe complications like annular rupture or paravalvular leakage.
  • Current guidelines recommend transoesophageal echocardiography (TEE) for annular sizing, but it has limitations.

Purpose of the Study:

  • To review and compare imaging modalities for preoperative assessment of aortic annular dimensions for TAVI.
  • To discuss the advantages and limitations of various sizing methods.

Main Methods:

  • Review of current literature on imaging techniques for aortic annulus assessment.
  • Comparison of transoesophageal echocardiography (TEE), Multidetector Computed Tomography (MDCT), and manometry-based methods.
  • Discussion of potential complications arising from incorrect prosthesis sizing.

Main Results:

  • TEE measurements can be operator-dependent and may underestimate annular dimensions.
  • MDCT and manometry offer alternative approaches to annular sizing.
  • Accurate sizing is essential to avoid prosthesis-related complications.

Conclusions:

  • Precise preoperative assessment of aortic annular dimensions is crucial for successful TAVI.
  • Alternative imaging modalities like MDCT should be considered alongside TEE for optimal prosthesis selection.
  • Further research may refine sizing techniques to improve TAVI outcomes.