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Related Concept Videos

Stroke: Introduction and Types01:29

Stroke: Introduction and Types

A stroke is an acute neurological event caused by the sudden disruption of cerebral blood flow, leading to rapid loss of neuronal function. Neurons depend on continuous oxygen and glucose supply, so even brief interruptions can cause irreversible injury within minutes. Strokes are classified into ischemic and hemorrhagic types.Ischemic StrokeIschemic strokes are most common and occur due to arterial occlusion, depriving brain tissue of oxygen and nutrients. This leads to energy failure, ionic...
Ischemic Stroke l: Introduction01:15

Ischemic Stroke l: Introduction

Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.
Ischemic Stroke ll: Pathophysiology01:15

Ischemic Stroke ll: Pathophysiology

An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...
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...
Hemorrhagic Stroke ll: Pathophysiology01:29

Hemorrhagic Stroke ll: Pathophysiology

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...
Cerebral Edema ll: Pathophysiology01:22

Cerebral Edema ll: Pathophysiology

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 barrier loses...

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Related Experiment Video

Updated: Jun 7, 2026

Intrastriatal Injection of Autologous Blood or Clostridial Collagenase as Murine Models of Intracerebral Hemorrhage
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Intracerebral Hemorrhage: Keep It Simple.

Daniel F Hanley1, Wendy C Ziai1, Farhaan S Vahidy2

  • 1Department of Neurology, BIOS Clinical Trial Coordinating Center, Trial Innovation Center, Johns Hopkins University School of Medicine, Baltimore, MD (D.F.H., W.C.Z., N.A.M.).

Stroke
|October 30, 2024
PubMed
Summary
This summary is machine-generated.

Surgical clot evacuation is a simple, effective primary treatment for spontaneous intracerebral hemorrhage. Further research is needed to refine patient selection and techniques for minimally invasive surgery plus alteplase in ICH evacuation.

Keywords:
cerebral hemorrhageinfarctionminimally invasive surgical proceduresneurosurgerystroketissue preservation

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Area of Science:

  • Neurosurgery
  • Neurology
  • Critical Care Medicine

Background:

  • Spontaneous intracerebral hemorrhage (ICH) presents a significant challenge in neurocritical care.
  • Defining optimal primary surgical treatment for ICH remains an evolving area of research.
  • Existing evidence suggests potential benefits of clot evacuation.

Purpose of the Study:

  • To review the consensus from recent trials on minimally invasive surgery for ICH.
  • To articulate key questions requiring further investigation in ICH treatment.
  • To guide future clinical practice and research in spontaneous intracerebral hemorrhage.

Main Methods:

  • Review of consensus results from the MISTIE (Minimally Invasive Surgery Plus Alteplase in ICH Evacuation) trial.
  • Analysis of findings from the ENRICH (Early Minimally Invasive Removal of Intracerebral Hemorrhage) trial.
  • Synthesis of current evidence regarding surgical evacuation of intracerebral hemorrhage.

Main Results:

  • Evidence from multiple trials supports mortality and functional benefits of clot evacuation in ICH.
  • Minimally invasive surgical approaches show promise in managing intracerebral hemorrhage.
  • Conclusive data on patient selection, comparative techniques, and timing for ICH surgery are still lacking.

Conclusions:

  • Clot evacuation represents a focused, primary surgical approach for spontaneous intracerebral hemorrhage.
  • Further evidence is necessary to challenge equipoise and refine surgical practices for ICH.
  • Future research should address remaining questions in patient selection, technique, and timing for ICH treatment.