Related Experiment Video
Updated: May 5, 2026
09:32
Manufacturing Abdominal Aorta Hydrogel Tissue-Mimicking Phantoms for Ultrasound Elastography Validation
Published on: September 19, 2018
17.8K
Is the abdominal aortic aneurysm rupture rate decreasing?
1Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, 110 Francis Street, Suite 9B, Boston, MA 02215, USA.
Advances in Surgery
|December 5, 2013
Summary
Decreased smoking has significantly reduced abdominal aortic aneurysm (AAA) rupture rates. Enhanced awareness, screening, and risk factor management contribute to this decline, with ongoing research into predictive models and medical therapies.
Area of Science:
- Vascular Surgery
- Epidemiology
- Cardiovascular Medicine
Background:
- Abdominal aortic aneurysm (AAA) rupture risk has decreased.
- Reduced smoking prevalence is a primary driver.
- Improved cardiovascular risk factor awareness and screening also contribute.
Purpose of the Study:
- To review trends and factors influencing AAA rupture rates.
- To discuss evolving risk prediction models and management strategies.
- To evaluate current AAA repair guidelines and outcomes.
Main Methods:
- Review of public data from England and Wales.
- Analysis of meta-analysis findings.
- Examination of current clinical guidelines and trial data.
Main Results:
- AAA rupture reduction observed across all ages, linked to decreased smoking.
- No demonstrated survival benefit for open or endovascular repair of small AAAs (4.0-5.4 cm).
- AAA repair carries significant risks, including 30-day mortality (3-5%) and major morbidity (15-40%).
Conclusions:
- Public awareness, screening, and risk factor reduction are lowering AAA rupture risk.
- Predictive models incorporating wall stress and strength show promise.
- Surveillance is recommended for AAAs 4.0-5.4 cm; medical therapies should be considered.
Related Concept Videos
01:26Aneurysm III: Interprofessional Care
478
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...
478
01:21Aneurysm II: Clinical Manifestations and Diagnostic Studies
589
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...
589
01:30Aneurysm I: Introduction
650
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...
650
01:22Aneurysm IV: Nursing Management
621
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...
621
01:25Aortic Regurgitation III: Medical Management
598
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...
598
01:15Aortic Regurgitation I: Introduction
1.6K
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...
1.6K