Related Experiment Video

Updated: Sep 14, 2025

Surgically Induced Cardiac Volume Overload by Aortic Regurgitation in Mouse
08:20

Surgically Induced Cardiac Volume Overload by Aortic Regurgitation in Mouse

Published on: August 30, 2022

2.0K

A Rare Case of Mitral-Aortic Intervalvular Fibrosa Pseudoaneurysm Masquerading as a Pseudo-Aortic Regurgitation-A

Akshay H Laguduva1, Omer M Mujahid1, Sandeep Chauhan1

  • 1From the Department of Cardiac Anesthesia and Critical Care, Cardiothoracic Centre, All India Institute of Medical Sciences (AIIMS), New Delhi, India.

A&A Practice
|July 21, 2025
PubMed

Insights

A rare mitral-aortic intervalvular fibrosa (MAIVF) aneurysm was identified. Transesophageal echocardiography revealed an unusual aortic regurgitation mechanism, allowing valve-sparing surgery.

Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Medical Imaging

Background:

  • Pseudoaneurysms of the mitral-aortic intervalvular fibrosa (MAIVF) can arise from endocarditis or aortic valve surgery.
  • Aortic regurgitation (AR) may potentiate MAIVF pseudoaneurysm formation by weakening the fibrosa region.

Purpose of the Study:

  • To report a unique case of MAIVF aneurysm.
  • To describe an unusual mechanism of AR without primary valvular or root pathology.
  • To highlight the utility of intraoperative transesophageal echocardiography (TEE) in surgical planning.

Main Methods:

  • Case presentation of a patient with MAIVF aneurysm.
  • Intraoperative assessment using transesophageal echocardiography (TEE).

Main Results:

  • A pseudoaneurysm of the MAIVF was diagnosed.
  • An atypical mechanism for AR was identified, unrelated to valvular or aortic root disease.
  • Intraoperative TEE findings prompted a modification of the surgical strategy.

Conclusions:

  • MAIVF pseudoaneurysms can present with complex mechanisms of AR.
  • Intraoperative TEE is crucial for accurate diagnosis and surgical decision-making in such cases.
  • Valve-sparing procedures may be feasible when AR has an unusual etiology not involving the valve itself.

More Related Videos

Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China08:42

Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China

Published on: February 11, 2022

3.6K
Modified Heterotopic Abdominal Heart Transplantation and a Novel Aortic Regurgitation Model in Rats13:32

Modified Heterotopic Abdominal Heart Transplantation and a Novel Aortic Regurgitation Model in Rats

Published on: June 2, 2023

2.1K

Related Concept Videos

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...
38
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...
59
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...
58
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...
26
Mitral Regurgitation II: Clinical Features and Diagnostic Tests01:23

Mitral Regurgitation II: Clinical Features and Diagnostic Tests

Mitral regurgitation (MR) is a valvular heart disorder in which the mitral valve fails to close tightly, allowing blood to leak backward into the heart. Understanding the clinical manifestations, assessment, diagnostic findings, and medical management of MR is crucial to effectively managing affected patients.Clinical Manifestations of Mitral RegurgitationMitral regurgitation can be acute or chronic, each presenting differently and requiring different approaches:1. Acute Mitral...
57
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...
45