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Related Concept Videos

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...
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 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 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...
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...
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...

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Related Experiment Video

Updated: May 20, 2026

Novel and Innovative Hybrid Technique for Type A Aortic Dissection
06:26

Novel and Innovative Hybrid Technique for Type A Aortic Dissection

Published on: March 28, 2025

Aortic expansion after acute type B aortic dissection.

Frederik H W Jonker1, Santi Trimarchi, Vincenzo Rampoldi

  • 1Department of Surgery, Maasstad Hospital, Rotterdam, the Netherlands. jonkerf@maasstadziekenhuis.nl

The Annals of Thoracic Surgery
|July 11, 2012
PubMed
Summary

White race and smaller initial aortic diameter predict aortic expansion in acute type B aortic dissection (ABAD) patients. Female sex, intramural hematoma, and calcium-channel blockers may decrease expansion.

Related Experiment Videos

Last Updated: May 20, 2026

Novel and Innovative Hybrid Technique for Type A Aortic Dissection
06:26

Novel and Innovative Hybrid Technique for Type A Aortic Dissection

Published on: March 28, 2025

Area of Science:

  • Cardiovascular Medicine
  • Vascular Surgery
  • Medical Research

Background:

  • Acute type B aortic dissection (ABAD) patients medically managed can experience aortic enlargement, increasing risks of aneurysm and rupture.
  • Identifying predictors of aortic expansion is crucial for managing ABAD patients.

Purpose of the Study:

  • To investigate predictors of aortic expansion in patients with acute type B aortic dissection (ABAD).

Main Methods:

  • Analysis of 191 ABAD patients from the International Registry of Acute Aortic Dissection (1996-2010).
  • Medical therapy alone was administered; descending aortic diameter was measured at admission and follow-up.
  • Multivariate regression analysis assessed factors influencing the annual aortic expansion rate.

Main Results:

  • Aortic expansion occurred in 59% of patients, with a mean rate of 1.7±7 mm/y.
  • White race and initial aortic diameter <4.0 cm were linked to increased expansion.
  • Female sex, intramural hematoma, and calcium-channel blocker use were associated with decreased expansion.

Conclusions:

  • White race and smaller initial aortic diameter are predictors of increased aortic expansion in ABAD.
  • Female sex, intramural hematoma, and calcium-channel blockers may reduce aortic expansion rates.
  • Further research into calcium-channel blockers for ABAD management is warranted.