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AVMs
AVMs and retreival devices
| Question | Answer |
|---|---|
| What are embospheres used for? | embolization |
| how do you use embospheres? | Start with bigger microspheres(500 micron) first then smaller to fill in cracks |
| What type of procedure is the embospheres | minimally invasive |
| What do embospheres do? | block blood flow to tumors and abnormal connections between arteries and veins (vascular malformations) |
| how is the embospehre procedure done | ARTERIAL ACCESS, Infarct an area |
| What is used for bigger vessels? | Tornado embolization coil |
| Which retrieval device uses suction? | Solitaire |
| What devices are direct clot removal devices? | Penumbra, Trevo, Merci |
| What is Onyx LES (Liquid embolic system) used for? | pre surgical embolization of brain AVMs - good control of delivery |
| What kind of product is Flowgate? | Stryker |
| What is used with suction? | Penumbra |
| How does the tornado embolization coil work? | Tiny hairs promote clotting |
| What are tornado embolization coils used for? | Embolization of a selective vessel - may use 2 or 3 |
| What types of Tornado Embolization coils are there | SOME are helical, come in different shapes and lenghts |
| What is used for bleeding vessels? | Tornado embolization coils |
| WHat is Trevo | Stent attached to wire |
| How is TREVO delivered? | sheath in carotid, through a microcatheter |
| Is distal protection used with TREVO? | Yes |
| How long do you leave TREVO stent in? | 3-5 minutes |
| What is Pnembra intended for? | Retrieve clot with pressure/vaccum |
| What is Neuroform? | stent designed to hold stuff in instead of keeping things open |