Related Experiment Video

Updated: Jul 2, 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 morphology following endovascular repair of acute and chronic type B aortic dissection: implications for

D Sayer1, M Bratby, M Brooks

  • 1St George's Vascular Institute, London, UK.

European Journal of Vascular and Endovascular Surgery : the Official Journal of the European Society for Vascular Surgery
|August 12, 2008
PubMed

Insights

Endovascular repair of Type B aortic dissections shows acceptable early outcomes. Acute dissections remodel significantly, while chronic dissections require sustained false lumen thrombosis for repair integrity.

Area of Science:

  • Vascular Surgery
  • Interventional Cardiology
  • Thoracic Surgery

Background:

  • Type B aortic dissection presents unique challenges in both acute and chronic forms.
  • Endovascular repair is an evolving treatment modality for these complex aortic conditions.
  • Understanding post-treatment morphological changes is crucial for long-term management.

Purpose of the Study:

  • To evaluate early clinical outcomes after endovascular repair of acute and chronic Type B aortic dissections.
  • To assess medium-term morphological changes, including aortic remodeling and false lumen thrombosis.
  • To compare outcomes between acute and chronic dissection patient groups.

Main Methods:

  • Prospective recording of clinical outcomes in 78 patients (38 acute, 40 chronic).
  • Serial CT scanning for follow-up assessments.
  • Quantification of false lumen thrombosis and aortic dimensions (short axis diameter, maximum diameter).

Main Results:

  • 30-day mortality was 2.6% for acute and 7.5% for chronic dissections.
  • Lower rates of stroke and paraplegia observed in chronic dissections.
  • At 30 months, cumulative survival was 93% for acute and 66.5% for chronic dissections (P=0.015).
  • Aortic remodeling was more pronounced in acute dissections; chronic dissections showed static dimensions.
  • False lumen thrombosis rates were similar between groups but higher at the endograft level.

Conclusions:

  • Endovascular repair is a viable option for Type B aortic dissection with acceptable early results.
  • Acute dissections benefit from significant aortic remodeling post-intervention.
  • Chronic dissections necessitate reliance on stable false lumen thrombosis to maintain repair integrity.
Abstract

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...
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 IV: Nursing Management01:22

Aneurysm IV: Nursing Management

Vigilant monitoring for aneurysm rupture is essential for patients undergoing aortic surgery.Preoperative Nursing ManagementContinuously monitor the patient for manifestations of aneurysm rupture, such as pallor, weakness, tachycardia, hypotension, abdominal, back, groin, or periumbilical pain, changes in consciousness, and a pulsating abdominal mass. Regularly assess the patient's peripheral pulses.Instruct the patient to consume a clear liquid diet the day before surgery and administer...
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 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...