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Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

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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...
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Aneurysm I: Introduction01:30

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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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Aortic Regurgitation I: Introduction01:15

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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...
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Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

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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...
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Coronary Artery Disease I: Introduction01:30

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Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
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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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Novel and Innovative Hybrid Technique for Type A Aortic Dissection
06:26

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Published on: March 28, 2025

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Risk Factors for Thoracic Aortic Dissection.

Zhen Zhou1, Alana C Cecchi1, Siddharth K Prakash1

  • 1Division of Medical Genetics, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, 6431 Fannin Street, MSB 6.100, Houston, TX 77030, USA.

Genes
|October 27, 2022
PubMed
Summary
This summary is machine-generated.

Thoracic aortic aneurysms and dissections (TAD) are life-threatening conditions. This review focuses on non-genetic risk factors and the mechanisms that disrupt aortic wall integrity, increasing TAD risk.

Keywords:
acute aortic dissectionrisk factorthoracic aortic aneurysm and dissection

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Area of Science:

  • Cardiovascular Medicine
  • Genetics
  • Pathology

Background:

  • Thoracic aortic aneurysms (TAAs) can progress to acute aortic dissection (AAD), a fatal condition.
  • AADs are classified as Stanford type A (ascending aorta) or type B (descending aorta).
  • Both genetic and environmental factors contribute to thoracic aortic aneurysms and dissections (TAD).

Purpose of the Study:

  • To review the primary risk factors associated with TAD.
  • To emphasize non-genetic risk factors for TAD.
  • To elucidate the mechanisms underlying TAD development.

Main Methods:

  • Literature review of existing studies on TAD.
  • Analysis of genetic and environmental risk factors.
  • Discussion of pathophysiological mechanisms of aortic wall disruption.

Main Results:

  • Identified genetic variants and environmental conditions that compromise aortic integrity.
  • Detailed the mechanisms by which these factors lead to aneurysm and dissection.
  • Highlighted the predominant role of non-genetic factors in TAD etiology.

Conclusions:

  • Understanding TAD risk factors and mechanisms is crucial for prevention and treatment.
  • Non-genetic factors play a significant role in the development of thoracic aortic aneurysms and dissections.
  • Further research into underlying mechanisms can inform therapeutic strategies.