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Related Concept Videos

Aneurysm III: Interprofessional Care01:26

Aneurysm III: Interprofessional Care

163
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...
163
Aneurysm IV: Nursing Management01:22

Aneurysm IV: Nursing Management

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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...
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Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

124
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...
124
Aneurysm I: Introduction01:30

Aneurysm I: Introduction

195
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...
195
Aortic Regurgitation III: Medical Management01:25

Aortic Regurgitation III: Medical Management

251
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...
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Related Experiment Video

Updated: Dec 16, 2025

Manufacturing Abdominal Aorta Hydrogel Tissue-Mimicking Phantoms for Ultrasound Elastography Validation
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Surgery for small asymptomatic abdominal aortic aneurysms.

Pinar Ulug1, Janet T Powell1, Melissa Ashley-Marie Martinez2

  • 1Vascular Surgery Research Group, Imperial College London, London, UK.

The Cochrane Database of Systematic Reviews
|July 2, 2020
PubMed
Summary
This summary is machine-generated.

Early repair of small abdominal aortic aneurysms (AAAs) shows no survival benefit compared to surveillance. Current evidence does not support early open repair or endovascular aneurysm repair (EVAR) for asymptomatic AAAs between 4.0 cm and 5.5 cm.

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Area of Science:

  • Vascular Surgery
  • Clinical Trials
  • Health Economics

Background:

  • Abdominal aortic aneurysms (AAAs) are a significant vascular condition, with treatment decisions for asymptomatic cases influenced by size.
  • Aneurysm rupture risk increases with size, leading to debate on early repair versus surveillance for AAAs between 4.0 cm and 5.5 cm.

Purpose of the Study:

  • To compare mortality, costs, quality of life, and aneurysm rupture rates between early surgical repair and routine ultrasound surveillance for asymptomatic AAAs (4.0-5.5 cm).

Main Methods:

  • Inclusion of four randomized controlled trials (3314 participants) comparing early open repair or endovascular aneurysm repair (EVAR) with surveillance.
  • Data extraction focused on mortality, costs, quality of life, and aneurysm rupture, with GRADE used to assess evidence certainty.

Main Results:

  • No significant difference in long-term survival was found between early repair (open or EVAR) and surveillance groups.
  • Early repair (open or EVAR) was associated with higher initial costs compared to surveillance.
  • Aneurysm rupture rates were low, with some ruptures in the surveillance group occurring in aneurysms exceeding repair thresholds.

Conclusions:

  • Current evidence does not support early open repair or EVAR for asymptomatic AAAs (4.0-5.5 cm) due to lack of survival advantage.
  • Long-term data for EVAR are limited, and further research is needed on small AAAs in women and ethnic minorities.