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Related Concept Videos

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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Aneurysm III: Interprofessional Care01:26

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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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Aneurysm IV: Nursing Management01:22

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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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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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Cerebral Hemispheres01:05

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The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...
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Physical models representing molecular architectures of chemical compounds play essential roles in understanding chemistry. The use of molecular models makes it easier to visualize the structures and shapes of atoms and molecules.
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Related Experiment Video

Updated: Jan 22, 2026

Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
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Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment

Published on: September 25, 2009

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In vivo cerebral aneurysm models.

John W Thompson1,2, Omar Elwardany1,2, David J McCarthy1,2

  • 1Departments of1Neurological Surgery and.

Neurosurgical Focus
|July 2, 2019
PubMed
Summary

Animal models are crucial for understanding cerebral aneurysm development and rupture. These models aid in developing new treatments and training for endovascular device procedures, improving patient outcomes.

Keywords:
BAPN = β-aminopropionitrileCA = cerebral aneurysmCCA = common carotid arteryDOCA = deoxycorticosterone acetateaneurysmanimalcaninein vivomicemodelporcinerabbit

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Area of Science:

  • Neurology
  • Vascular Surgery
  • Biomedical Engineering

Background:

  • Cerebral aneurysm rupture causes subarachnoid hemorrhage, leading to high mortality and neurological deficits.
  • Endovascular treatment is increasingly preferred for cerebral aneurysms, but recurrence necessitates retreatment.
  • Understanding aneurysm pathogenesis is vital due to limited pharmacological options and retreatment needs.

Purpose of the Study:

  • To review current small and large animal models of cerebral aneurysms.
  • To explore how these models advance understanding of aneurysm pathophysiology.
  • To highlight the role of animal models in developing and training for endovascular devices.

Main Methods:

  • Literature review of animal models used in cerebral aneurysm research.
  • Analysis of studies focusing on aneurysm pathogenesis, maturation, and rupture.
  • Examination of research on endovascular device development and training using animal models.

Main Results:

  • Animal models provide significant insights into cerebral aneurysm biology.
  • These models are instrumental in developing and refining endovascular treatment techniques.
  • Research using animal models contributes to understanding aneurysm progression and rupture.

Conclusions:

  • Animal models are essential for investigating cerebral aneurysm pathophysiology.
  • They play a key role in the advancement and training for endovascular aneurysm treatment.
  • Continued use of animal models will drive innovation in aneurysm management.