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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 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...
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 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 24, 2026

Manufacturing Abdominal Aorta Hydrogel Tissue-Mimicking Phantoms for Ultrasound Elastography Validation
09:32

Manufacturing Abdominal Aorta Hydrogel Tissue-Mimicking Phantoms for Ultrasound Elastography Validation

Published on: September 19, 2018

Surgery for small asymptomatic abdominal aortic aneurysms.

Giovanni Filardo1, Janet T Powell, Melissa Ashley-Marie Martinez

  • 1Institute for Health Care Research and Improvement, Baylor Health Care System, Dallas, Texas, USA. GiovanFi@BaylorHealth.edu.

The Cochrane Database of Systematic Reviews
|March 16, 2012
PubMed
Summary
This summary is machine-generated.

For small abdominal aortic aneurysms (AAAs) between 4.0 and 5.5 cm, immediate surgical repair shows no long-term survival benefit compared to routine ultrasound surveillance. Current evidence does not support early open or endovascular repair for these small AAAs.

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Microsurgical Creation of Giant Bifurcation Aneurysms in Rabbits for the Evaluation of Endovascular Devices
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Microsurgical Creation of Giant Bifurcation Aneurysms in Rabbits for the Evaluation of Endovascular Devices

Published on: September 8, 2023

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Last Updated: May 24, 2026

Manufacturing Abdominal Aorta Hydrogel Tissue-Mimicking Phantoms for Ultrasound Elastography Validation
09:32

Manufacturing Abdominal Aorta Hydrogel Tissue-Mimicking Phantoms for Ultrasound Elastography Validation

Published on: September 19, 2018

Microsurgical Creation of Giant Bifurcation Aneurysms in Rabbits for the Evaluation of Endovascular Devices
07:21

Microsurgical Creation of Giant Bifurcation Aneurysms in Rabbits for the Evaluation of Endovascular Devices

Published on: September 8, 2023

Area of Science:

  • Vascular Surgery
  • Clinical Trials
  • Public Health

Background:

  • Abdominal aortic aneurysms (AAAs) are life-threatening arterial enlargements.
  • Risk of rupture increases with AAA size, necessitating treatment decisions.
  • Optimal timing for intervention in small AAAs (4.0-5.5 cm) remains debated.

Purpose of the Study:

  • To compare long-term survival in patients with small AAAs (4.0-5.5 cm).
  • To evaluate immediate surgical repair versus routine ultrasound surveillance.
  • To determine the best management strategy for asymptomatic small AAAs.

Main Methods:

  • Systematic review and meta-analysis of four randomized controlled trials.
  • Inclusion criteria: asymptomatic AAAs (4.0-5.5 cm), random allocation to immediate repair or surveillance.
  • Primary outcome: mortality or survival; data from 3314 patients.

Main Results:

  • No significant difference in long-term survival between immediate repair and surveillance groups.
  • Early survival benefit observed in the surveillance group due to lower perioperative mortality.
  • Meta-analyses showed non-significant associations for mortality at one and six years.

Conclusions:

  • Current evidence does not support early open or endovascular repair for small AAAs (4.0-5.5 cm).
  • Routine ultrasound surveillance appears to be the preferred management strategy.
  • Further research is needed to definitively establish optimal AAA management guidelines.