Related Experiment Video
Updated: Jul 12, 2026
08:51
A New Murine Model of Endovascular Aortic Aneurysm Repair
Published on: July 7, 2013
[Pararenal aortic aneurysms: definition, classification, directions for surgery]
G B Agus1, P Mondani, D Santuari
1Università degli Studi di Milano Clinica Igea, Milano.
Annali Italiani Di Chirurgia
|September 25, 2004
Summary
Endovascular Aneurysm Repair (EVAR) for pararenal abdominal aortic aneurysms (PRAA) requires careful topographic assessment. Classifications aid in selecting the best treatment strategy for these complex cases.
Area of Science:
- Vascular Surgery
- Endovascular Interventions
- Aortic Aneurysm Classification
Context:
- Pararenal aneurysms (PRAA) involve juxtarenal or suprarenal aorta.
- Topographical criteria are crucial for treatment decisions in abdominal aortic aneurysms (AAA).
- Existing classifications (Schumacher, Wolf, Ayari) consider aneurysm collar, renal artery, and renal vein relations.
Purpose:
- To highlight the importance of topographic and morphologic aspects in AAA treatment planning.
- To discuss the selection criteria for endovascular aneurysm repair (EVAR) versus open surgery for PRAA.
- To review factors influencing surgical strategy, including aneurysm location and involvement of renal arteries.
Summary:
- Morphologic-topographic evaluation is key for patient selection for EVAR or open surgery.
- Suprarenal clamping may be necessary for proximal anastomosis or endoprosthesis anchorage.
- Consideration of PRAA incidence, mortality, aneurysm size, and renal artery involvement is vital.
Impact:
- Improved patient selection for EVAR and open surgery in complex AAA cases.
- Enhanced understanding of the role of topographic classification in PRAA management.
- Informed decision-making regarding the need for suprarenal aortic clamping and renal artery reconstruction.
Related Concept Videos
01:15Aortic 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...
01:25Aortic 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...
01:30Aneurysm 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...
01:21Aneurysm 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...
01:26Aneurysm 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...
01:22Aneurysm 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...