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Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

593
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 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...
479
Hemorrhagic Stroke l: Introduction01:17

Hemorrhagic Stroke l: Introduction

41
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...
41
Hemorrhagic Stroke ll: Pathophysiology01:29

Hemorrhagic Stroke ll: Pathophysiology

57
A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...
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Brain Abscess l: Introduction01:26

Brain Abscess l: Introduction

48
A brain abscess is a focal, intracerebral infection characterized by a localized collection of pus within the brain parenchyma, resulting from microbial invasion and the body’s inflammatory response. It progresses through stages: early and late cerebritis, followed by early and late capsule formation, reflecting tissue destruction, immune response, and eventual encapsulation.Etiology and PathogenesisCausative organisms vary with source and host factors, often involving polymicrobial...
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Cerebral Edema ll: Pathophysiology01:22

Cerebral Edema ll: Pathophysiology

31
Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this...
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関連する実験動画

Updated: May 6, 2026

Brain Infarct Segmentation and Registration on MRI or CT for Lesion-symptom Mapping
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Brain Infarct Segmentation and Registration on MRI or CT for Lesion-symptom Mapping

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遅延性脳梗塞と 低度の脳下出血 特徴,予測要因,臨床的影響

Andrea M Alexandre1, Anselmo Caricato2,3, Alessandro Pedicelli1,3

  • 1UOSA Neuroradiologia Interventistica, Fondazione Policlinico Universitario A.Gemelli IRCCS, Roma, Italy.

Neurosurgical review
|August 26, 2025
PubMed
まとめ

遅延性脳梗塞 (CI) は,前部伝達性動脈動脈瘤,SAHの容量,およびDSA治療の必要性によって予測されます. 障害と死亡率を増加させる.

キーワード:
動脈瘤CT脳梗塞サバラクノイド出血

さらに関連する動画

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage
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Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model
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関連する実験動画

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Brain Infarct Segmentation and Registration on MRI or CT for Lesion-symptom Mapping
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Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage
10:34

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Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model
09:14

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Published on: June 18, 2021

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科学分野:

  • 神経学
  • 神経外科
  • 放射線科

背景:

  • 神経下出血 (aSAH) は重大な神経学的状態である.
  • 遅発性脳梗塞 (CI) を含む重大なリスクに直面しています.
  • CIの予測因子と影響を理解することは,患者のアウトカムを改善するために極めて重要です.

研究 の 目的:

  • 遅延性脳梗塞 (CI) の予測要因を特定する.
  • 患者に対するCIの臨床的影響を評価する.
  • CI量と患者のアウトカムとの関係を分析する.

主な方法:

  • POGASHレジストリから将来的に収集されたデータを遡及的に分析する.
  • 連続したWFNSグレードIV-VaSAHの患者を含む.
  • ICの定義は,治療に関連する原因を除いて,6週間以内に発生した新発血性病変である.

主要な成果:

  • 532人の弱度のaSAH患者の19. 9%でCIが発生した.
  • CIの予測要因には,SAHの体積,前部伝達性動脈動脈瘤 (ACoA),およびDSA治療の必要性が含まれていた.
  • CIは独立して障害の増加を予測した (aOR0. 59).

結論:

  • ACoA動脈瘤,SAH容量,およびDSA治療は,低度のaSAHにおけるCIを予測する.
  • CIの体積的な範囲は,結果への有害な影響の主な要因です.
  • CIの量は,生存者の死亡率と障害の増加を独立して予測する.