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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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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 IV: Nursing Management01:22

Aneurysm IV: Nursing Management

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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...
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Imaging Studies for Cardiovascular System V: CT01:28

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Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
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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 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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Related Experiment Video

Updated: Oct 15, 2025

Novel and Innovative Hybrid Technique for Type A Aortic Dissection
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Surveillance Imaging Following Acute Type A Aortic Dissection.

Kevin R An1, Charles de Mestral2, Derrick Y Tam3

  • 1Division of Cardiac Surgery, Department of Surgery, Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada. Electronic address: https://twitter.com/KevinAnMD.

Journal of the American College of Cardiology
|October 26, 2021
PubMed
Summary

Postoperative imaging surveillance after acute type A aortic dissection (ATAAD) repair is poorly followed. Survivors face significant long-term risks of mortality and reintervention, suggesting a need to review current guidelines.

Keywords:
aortic dissectioncomputed tomographymagnetic resonance imaging

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Area of Science:

  • Cardiovascular Surgery
  • Medical Imaging
  • Public Health

Background:

  • Survivors of acute type A aortic dissection (ATAAD) repair face ongoing risks of long-term complications.
  • Current guidelines recommend postoperative imaging surveillance, but adherence is not well-established.

Purpose of the Study:

  • To determine the real-world frequency of postoperative imaging surveillance in ATAAD survivors.
  • To characterize the long-term outcomes, including mortality and reintervention rates, in this patient population.

Main Methods:

  • A population-based study linked administrative health databases in Ontario, Canada.
  • Identified patients who underwent ATAAD repair and survived at least 90 days.
  • Defined guideline-directed imaging surveillance (GDIS) and analyzed its association with mortality and reintervention using multivariable time-to-event analysis.

Main Results:

  • 14% of 888 ATAAD survivors received guideline-directed imaging surveillance (GDIS).
  • Long-term mortality rates reached 29% at 10 years, and aortic reintervention incidence reached 17% at 10 years.
  • Greater adherence to GDIS was associated with increased mortality (HR 1.08) and reintervention (HR 1.04).

Conclusions:

  • Adherence to guideline-directed imaging surveillance after ATAAD repair is low.
  • Long-term mortality and reintervention rates remain substantial in ATAAD survivors.
  • Further research is warranted to evaluate and potentially modify current surveillance guidelines.