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Related Concept Videos

Aortic Regurgitation I: Introduction01:15

Aortic Regurgitation I: Introduction

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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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Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

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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...
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Aneurysm I: Introduction01:30

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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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Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

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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...
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Aneurysm III: Interprofessional Care01:26

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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...
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Related Experiment Video

Updated: May 5, 2026

Operating Transverse Aortic Constriction with Absorbable Suture to Obtain Transient Myocardial Hypertrophy
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Acute Type B Aortic Dissection: Insights From a Single-Center Retrospective Experience Over 12 Years.

Alexandre Azoulay1, Chris Serrand2, Amine Belarbi1

  • 1Department of Vascular and Thoracic Surgery, University of Montpellier, CHU Montpellier, Montpellier, France.

Journal of Endovascular Therapy : an Official Journal of the International Society of Endovascular Specialists
|June 20, 2024
PubMed
Summary

Stent-graft repair for acute type B aortic dissection (ATBAD) reduces late aortic events and promotes remodeling compared to medical therapy alone. This approach may be beneficial for select ATBAD patients, especially those with larger initial aortic or false lumen diameters.

Keywords:
acute aortic dissectionaneurysmal degenerationaortic remodelinglate aortic eventsstent-grafttype B

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Area of Science:

  • Cardiovascular Surgery
  • Vascular Surgery
  • Interventional Cardiology

Background:

  • Acute type B aortic dissection (ATBAD) presents significant early and late risks, including high rates of morbidity, mortality, and late aortic events.
  • Optimal medical therapy alone has limitations in preventing chronic aortic complications in ATBAD patients.

Purpose of the Study:

  • To evaluate the initial outcomes of ATBAD treatment comparing optimal medical therapy alone versus combined with proximal entry tear stent-graft coverage.
  • To analyze aortic diameter evolution and its clinical consequences during the chronic phase in each treatment group.

Main Methods:

  • Retrospective, single-center study of 130 consecutive ATBAD patients (2008-2020).
  • Primary analysis compared medical therapy alone (n=67) versus stent-graft entry tear coverage (n=63).
  • Subgroup analysis investigated factors associated with disease progression in the medical management group.

Main Results:

  • Median follow-up was 29.5 months.
  • Aneurysmal evolution occurred in 42.4% of the medical group versus 21.8% in the stent-graft group.
  • Stent-graft treatment led to significant aortic remodeling, decreasing false lumen and thoracic aortic diameters.
  • Initial aortic diameter ≥40 mm and false lumen diameter ≥22 mm were independent risk factors for aneurysmal degeneration.
  • Five-year survival was 76.1% in both groups.

Conclusions:

  • Stent-graft entry tear coverage is safe and effective for ATBAD, promoting aortic remodeling and reducing late aortic events.
  • Endovascular repair may be considered for uncomplicated ATBAD patients with initial aortic diameter ≥40 mm or false lumen diameter ≥22 mm.
  • Endovascular interventions are necessary for managing uncomplicated ATBAD, especially in high-risk patients.