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Related Concept Videos

Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

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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 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

Aneurysm I: Introduction

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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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Aneurysm III: Interprofessional Care01:26

Aneurysm III: Interprofessional Care

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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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Cardiovascular System Abnormal Findings II: Auscultation01:25

Cardiovascular System Abnormal Findings II: Auscultation

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Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
Abnormal Heart Sounds
Gallops:
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Related Experiment Video

Updated: May 5, 2026

Author Spotlight: Using Point-of-Care Ultrasound for Comprehensive Evaluation of the Abdominal Aorta
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Aortic dissection: the flood tide sign.

Umberto G Rossi1, Sara Seitun, Maurizio Cariati

  • 1Department of Radiology and Interventional Radiology, San Carlo Borromeo Hospital, Via Pio II, 3, 20153 Milano, Italy.

Journal of Cardiovascular Computed Tomography
|November 26, 2013
PubMed
Summary
This summary is machine-generated.

Aortic dissection management is complex. Unbalanced entry and reentry tears in aortic dissection can cause delayed false lumen filling, impacting diagnosis and treatment strategies.

Keywords:
Aortic dissectionCTFalse lumenSign

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Area of Science:

  • Cardiovascular Medicine
  • Radiology
  • Surgical Pathology

Background:

  • Aortic dissection presents significant medical and surgical challenges.
  • The progression of aortic dissection is intrinsically linked to the dimensions and anatomical positioning of intimal tears.
  • Accurate imaging is crucial for understanding hemodynamics in aortic dissection.

Observation:

  • A specific case of aortic dissection was examined using contrast-enhanced multi-detector computed tomography (MD-CT).
  • The study observed a unique scenario involving low outflow from the false lumen.
  • This condition was attributed to an imbalance between the intimal entry and reentry tears.

Findings:

  • The imbalance in tears resulted in a delayed opacification of the false lumen during the arterial phase of the MD-CT scan.
  • Complete filling of the false lumen was ultimately observed during the venous phase.
  • This finding highlights dynamic changes in lumen filling influenced by tear characteristics.

Implications:

  • Understanding these dynamic filling patterns is vital for precise diagnosis of aortic dissection.
  • This case underscores the importance of MD-CT in evaluating complex aortic dissection hemodynamics.
  • The findings may inform surgical planning and improve patient outcomes for aortic dissection.