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Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

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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 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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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...
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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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Genome-wide Association Studies-GWAS01:11

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Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
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Giant cell arteritis-related aortic dissection: A multicenter retrospective study.

Hubert de Boysson1, Olivier Espitia2, Maxime Samson3

  • 1Department of Internal Medicine, Caen University Hospital, Avenue de la Côte de Nacre, Caen 14000, France; Normandy University, Caen, Unicaen, France.

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Summary

Giant cell arteritis (GCA) patients with large-vessel vasculitis (LVV) are prone to aortic dissection. Aortic surgery significantly improves survival rates in these high-risk patients.

Keywords:
Aortic dissectionAortitisGiant-cell arteritisLarge-vessel vasculitisSurgery

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Area of Science:

  • Cardiovascular Medicine
  • Rheumatology
  • Vascular Surgery

Background:

  • Giant cell arteritis (GCA) is a systemic vasculitis that can affect large arteries, including the aorta.
  • Aortic dissection is a serious complication of GCA, potentially leading to significant morbidity and mortality.

Purpose of the Study:

  • To characterize the clinical features and outcomes of patients experiencing aortic dissection in the context of GCA.
  • To identify predictors of survival in patients with GCA-related aortic dissection.

Main Methods:

  • Retrospective analysis of a nationwide GCA network cohort.
  • Inclusion of patients with aortic dissection either preceding GCA diagnosis or during its follow-up.
  • Data collection on patient demographics, disease characteristics, treatment, and survival outcomes.

Main Results:

  • 46 patients with GCA-related aortic dissection were identified.
  • Aortic dissection occurred either at GCA diagnosis (21 patients) or during follow-up (25 patients).
  • Aortic surgery was performed in 59% of patients, with a survival rate of 85% among those operated on. Multivariate analysis identified aortic surgery as the sole predictor of survival (HR: 4.3; p=0.007).

Conclusions:

  • Patients with prior large-vessel vasculitis (LVV) have an increased risk of early aortic dissection and require vigilant aortic monitoring.
  • Aortic dissection carries a substantial mortality risk, with one-third of patients dying from the complication.
  • Surgical intervention for aortic dissection in GCA patients is associated with improved survival outcomes.