1 / 10

Central Nervous System 3. Traumatic Vascular Injuries

TRAUMATIC VASCULAR INJURY. Epidural Hematoma: Arterial bleedingFrom skull fracture related Middle meningeal artery tearBlood collects between the dura

wheaton
Download Presentation

Central Nervous System 3. Traumatic Vascular Injuries

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    1. Central Nervous System 3. Traumatic Vascular Injuries

    2. TRAUMATIC VASCULAR INJURY Epidural Hematoma: Arterial bleeding From skull fracture related Middle meningeal artery tear Blood collects between the dura & skull bone (outside dura) Compressing the underlying brain – eventually results in uncal herniation NOT self limiting Often do not lose consciousness Takes a while for patient to be symptomatic (2-8 hrs)

    3. Subdural Hematoma: Venous bleeding from torn veins bridging between the brain & the dural sinuses. Blood collects in between the dura & the arachnoid. Venous bleeding is self-limited acutely May undergo organization – granulation type tissue May rebleed to point of brain herniation May occur with only minor trauma with a small atrophic brain Elderly, alcoholics & dementias Traumatic Subarachnoid Hemorrhage: Traumatic rupture of small vessels in the subarachnoid space. Traumatic Intraparenchymal Hemorrhage: Traumatic rupture of small vessels within the brain parenchyma. Penetrating injury to brain (like gunshot wound to head)

    4. Subarachnoid Hemorrhage MCC: ruptured berry aneurysm (defective media). Anterior communicating Occur around circle of Willis Congenital absence of media – weakening of vessel wall which balloons out and causes an aneurysm LCC: atherosclerotic & Mycotic aneurysms (usually bacterial infection of vessel wall) Risk of rupture increases with the size of aneurysm Berry aneurysm on the right middle artery – can have mass effects >10 mm = 50% risk of rupture/year Every time it ruptures ? 35% mortality rate

More Related