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Related Concept Videos

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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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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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 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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Related Experiment Video

Updated: Jan 2, 2026

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage
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Aneurysmal subarachnoid hemorrhage: current concepts and updates.

Carolina Rouanet1, Gisele Sampaio Silva1

  • 1Universidade Federal de São Paulo, Departamento de Neurologia e Neurocirurgia, São Paulo SP, Brasil.

Arquivos De Neuro-Psiquiatria
|December 12, 2019
PubMed
Summary

Aneurysmal subarachnoid hemorrhage (aSAH) management requires prompt diagnosis via head CT and aneurysm securing. Complications like delayed cerebral ischemia and systemic issues necessitate aggressive prevention and treatment.

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Area of Science:

  • Neurology
  • Neurosurgery
  • Radiology

Background:

  • Aneurysmal subarachnoid hemorrhage (aSAH) presents with significant global incidence variation, with unknown precise epidemiology in Brazil.
  • The hallmark symptom is a severe headache, often described as the 'worst headache ever felt'.
  • Early diagnosis is crucial, with head computed tomography (CT) achieving nearly 100% sensitivity within six hours of symptom onset.

Purpose of the Study:

  • To highlight the importance of classifying aSAH based on clinical and imaging features for standardized communication and prognostic value.
  • To discuss current controversies and essential management strategies for aSAH, including rebleeding prevention and aneurysm securing.
  • To emphasize the need for managing associated complications such as hydrocephalus, seizures, delayed cerebral ischemia, and systemic issues.

Main Methods:

  • Review of clinical presentation and diagnostic imaging, particularly head CT sensitivity.
  • Discussion of classification systems for aSAH.
  • Analysis of management strategies for aneurysm securing (endovascular coiling, surgical clipping).
  • Overview of treatment approaches for complications like hydrocephalus, seizures, intracranial pressure, delayed cerebral ischemia, and systemic complications.

Main Results:

  • Head CT within six hours of ictus offers high sensitivity for diagnosing aSAH.
  • Classification systems aid in communication and prognosis.
  • Definitive aneurysm securing is paramount to prevent rebleeding.
  • Management of secondary complications is critical for patient outcomes.

Conclusions:

  • Standardized classification and prompt diagnosis of aSAH are essential.
  • Aggressive management of aneurysm securing and complications, including delayed cerebral ischemia and systemic issues, is vital for improving patient prognosis.
  • Further research into optimal blood pressure control and antifibrinolytic therapy for rebleeding prevention is warranted.