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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...
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The vascular phase, also known as vasospasm, is the initial stage of hemostasis, crucial for preventing excessive bleeding when a blood vessel is injured. After a vessel is cut, nerves in the damaged area trigger pain and other sensory impulses. Simultaneously, the smooth muscles in the vessel wall contract, resulting in a vascular spasm. This contraction reduces the vessel's diameter at the injury site, slowing or stopping blood loss through the vessel wall. Vascular spasms typically last for...
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Spinal cord injury progresses through two interconnected phases: primary injury and secondary injury.Primary InjuryPrimary injury happens at the moment of trauma and involves immediate mechanical damage to the spinal cord.Compression happens when broken vertebrae, herniated discs, or accumulating blood (such as a hematoma) press directly against the spinal cord, distorting its normal shape and function. In cases of contusion, the cord is bruised by a blunt force (like penetrating injuries or...
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Cellular injury is any process that disrupts a cell’s ability to maintain homeostasis, leading to structural or functional changes. It is broadly classified based on etiology (cause) and mechanism of damage.Classification by EtiologyCellular injury may result from several causes. Hypoxic injury happens due to reduced oxygen delivery, most commonly from inadequate blood supply, such as arterial obstruction; for example, coronary artery thrombosis can cause myocardial infarction. Chemical injury...
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The human body's intricate network of arteries ensures that every organ system receives the necessary oxygen and nutrients for optimal function. The arterial network in the head and neck region is particularly complex, providing vital blood flow to the brain, eyes, and other critical structures. Prominent arteries in this region include the internal carotid arteries and the vertebral arteries.
The internal carotid arteries supply blood to the anterior portion of the cerebrum. They enter the...

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An In Vivo Duo-color Method for Imaging Vascular Dynamics Following Contusive Spinal Cord Injury
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[Vascular system injuries].

J Moláček1, V Třeška, K Houdek

  • 1Chirurgická klinika, Fakultní nemocnice v Plzni.

Acta Chirurgiae Orthopaedicae Et Traumatologiae Cechoslovaca
|November 13, 2012
PubMed
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Serious vascular injuries in extremities can be successfully managed with surgical and interventional radiology techniques. Prompt treatment and collaboration among surgical specialists are crucial for optimal patient outcomes and limb salvage.

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Area of Science:

  • Vascular Surgery
  • Trauma Management
  • Interventional Radiology

Context:

  • Retrospective study at a dedicated Trauma Centre.
  • Analysis of 82 patients treated between 2006 and 2010.
  • Focus on severe vascular injuries of upper and lower extremities.

Purpose:

  • To present experience with managing vascular system injuries.
  • Identify common injury mechanisms and diagnostic challenges.
  • Evaluate therapeutic options and outcomes of surgical and interventional treatments.

Summary:

  • 82 patients with severe vascular injuries were treated, 83% surgically.
  • Common procedures included direct suture, resection/replacement, and bypass grafting.
  • Interventional radiology was used in 13 patients, primarily for thoracic endovascular aortic repair.

Impact:

  • 30-day mortality was 8.5%; morbidity was 35%.
  • Primary and secondary graft patency rates were 100% and 95.5%.
  • Successful management of severe extremity vascular injuries is possible with multidisciplinary collaboration.