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Related Concept Videos

Aneurysm I: Introduction01:30

Aneurysm I: Introduction

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...
Aneurysm III: Interprofessional Care01:26

Aneurysm III: Interprofessional Care

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...
Increased Intracranial Pressure l: Introduction01:14

Increased Intracranial Pressure l: Introduction

Intracranial hypertension is a sustained elevation of intracranial pressure (ICP) above 22 mm Hg. In supine adults, normal ICP is ~7–15 mm Hg.The rigid, nonexpandable cranium contains three components—brain tissue, blood, and cerebrospinal fluid (CSF)—that total ~1,700 mL in a typical adult: 1,400 mL brain (~80%), 150 mL blood (~10%), and 150 mL CSF (~10%). According to the Monro–Kellie doctrine, total intracranial volume is effectively fixed. When one component expands, CSF and venous blood...
Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

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...
Increased Intracranial Pressure ll: Pathophysiology01:29

Increased Intracranial Pressure ll: Pathophysiology

Increased intracranial pressure (ICP) refers to a potentially life-threatening rise in pressure inside the skull. This usually happens when there is a major change in the volume of brain tissue, blood, or cerebrospinal fluid (CSF) — the three components inside the skull. According to the Monro-Kellie doctrine, if the volume of one component increases, the volumes of the other components must decrease to maintain normal pressure. If this does not happen, ICP rises.The process often begins with...
Hemorrhagic Stroke l: Introduction01:17

Hemorrhagic Stroke l: Introduction

A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...

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Updated: May 29, 2026

Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms
11:58

Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms

Published on: August 11, 2015

[Unruptured intracranial aneurysms].

H Steinmetz1

  • 1Klinik für Neurologie, Zentrum der Neurologie und Neurochirurgie, Klinikum der Johann-Wolfgang-Goethe-Universität, Schleusenweg 2-16, 60528 Frankfurt am Main, Deutschland. h.steinmetz@em.uni-frankfurt.de

Der Nervenarzt
|September 2, 2011
PubMed
Summary
This summary is machine-generated.

Asymptomatic intracranial arterial aneurysms are found incidentally. A conservative approach is often best, especially for small aneurysms or patients over 50, balancing risks of natural progression versus treatment.

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A Murine Model of Carotid Aneurysm Formation
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A Murine Model of Carotid Aneurysm Formation

Published on: September 9, 2025

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Last Updated: May 29, 2026

Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms
11:58

Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms

Published on: August 11, 2015

A Murine Model of Carotid Aneurysm Formation
03:47

A Murine Model of Carotid Aneurysm Formation

Published on: September 9, 2025

Area of Science:

  • Neurology
  • Neurosurgery
  • Vascular Medicine

Context:

  • Incidental discovery of asymptomatic intracranial arterial aneurysms is increasingly common.
  • These findings significantly impact patient life and require careful management decisions.

Purpose:

  • To guide decision-making for asymptomatic intracranial arterial aneurysms.
  • To compare risks of natural aneurysm progression versus surgical or endovascular interventions.

Summary:

  • Current evidence suggests a conservative management strategy is favored for most patients.
  • This approach is particularly recommended for individuals with small aneurysms or those aged over 50.
  • Risk-benefit analysis of intervention versus observation is crucial.

Impact:

  • Informs clinical practice regarding the management of incidentally discovered aneurysms.
  • Promotes conservative treatment strategies when risks of intervention outweigh potential benefits.
  • Aims to improve patient outcomes by optimizing treatment decisions for intracranial arterial aneurysms.