Term
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Definition
| A weakened spot in the walls of an artery that will cause them severely thin over time |
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Term
| What is alarming about cerebral aneurysms? |
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Definition
| They are usually asymptomatic until they rupture, unless they are large enough to press on surrounding structures such as optic chiasma or optic nerves |
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Term
| What signs are present when the aneurysm ruptures? |
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Definition
| bloody spinal fluid, meningeal irritation, and focal signs of cerebral damage |
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Term
| Where are cerebral aneurysms typically found? |
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Definition
| At the bifurcation points in the arteries of the Circle of Willis |
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Term
| What is used to diagnose and located the aneurysm? |
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Definition
| An angiography will help locate the aneurysm as well as reveal exact size of it |
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Term
| What type of set should be available for hemorrhage control? |
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Definition
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Term
| What fissure is split by bipolar cautery? |
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Definition
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Term
| What types of self-retaining retractors can be used? |
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Definition
| Leyla-Yasargil or Greenberg |
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Term
| What structures need to be identified? |
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Definition
| The optic nerves and optic chiasma |
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Term
| Why is a temporary aneurysm clip used? |
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Definition
| It is to test an eventual placement of a permanent clip, or it can be used to occlude the parent vessel if a rupture occurs and the neck of the aneurysm cannot be visualized for clip placement |
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Term
| What can be used to prevent vasospasms? |
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Definition
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Term
| Why is it important the aneurysm clip is placed appropriately? |
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Definition
| If the clip is closed then opened, it cannot be closed and reused again |
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Term
| What can be done with a C-arm? |
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Definition
| An angiogram can be performed during the procedure |
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Term
| What is monitored while patient is in ICU? |
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Definition
| Postoperative bleeding and intracranial pressure |
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Term
| How long is the patient monitored while in the ICU? |
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Definition
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Term
| Where do more than 85 percent of aneurysms occur? |
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Definition
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Term
| What is the goal of the surgical procedure? |
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Definition
| To isolate the aneurysm from the parent vessel and place a clip across the neck of the aneurysm - or place a reinforcement over sac if a clip cannot be used |
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Term
| If a clip cannot be used, what types of materials can be used to reinforce sac of aneurysm? |
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Definition
| Polymethyl methacrylate or a mesh gauze |
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