Related Experiment Video
Updated: May 30, 2026
07:04
Creation of Two Saccular Elastase-Digested Aneurysms with Different Hemodynamics in One Rabbit
Published on: April 15, 2021
Aortic dissecting aneurysms--histopathological findings
S Bode-Jänisch1, A Schmidt, D Günther
1Hanover Medical School, Institute of Legal Medicine, Hanover, Germany. jaenisch.stefanie@mh-hannover.de
Forensic Science International
|July 29, 2011
Summary
Acute aortic dissection, a dangerous condition, shows distinct aortic wall changes. These findings in dissecting aneurysms may help identify at-risk individuals and their relatives.
Area of Science:
- Cardiovascular Pathology
- Forensic Medicine
- Histopathology
Background:
- Acute aortic dissection is a critical condition with high mortality.
- Understanding underlying aortic wall changes is crucial for risk assessment.
Purpose of the Study:
- To compare histological alterations in aortas with dissection versus normal aging.
- To identify potential biomarkers for genetic predisposition to aortic dissection.
Main Methods:
- Histological examination of 30 autopsy cases with aortic dissection.
- Semi-quantitative assessment of medial alterations (cystic medial necrosis, elastin fragmentation, fibrosis, medionecrosis).
- Comparison with 25 control cases of normal aging aortas.
Main Results:
- Statistically significant increases in cystic medial necrosis (p<0.001) and elastin fragmentation (p<0.001) were observed in aortas with dissection.
- Quantitative differences in medial alterations were noted between the two groups.
- Histological findings suggest distinct pathological processes in aortic dissection compared to normal aging.
Conclusions:
- Specific medial alterations in aortic dissection may serve as indicators of disease.
- These findings could aid in identifying individuals with a genetic predisposition to aortic dissection.
- Further research may elucidate the role of these histological changes in familial risk assessment.
Related Concept Videos
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...
01:22Aortic 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...
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...