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Karteikarten

Vein and Artery Mapping

ecmarchese Vascular Englisch 31 Karten

Karten in diesem Stapel (31)

  1. 1Can duplex sonography be used to confirm the presence, location, and adequacy of a vein to be used for bypass?Yes
  2. 2True or false: Saphenous veins can be used as arterial conduit for CABG or LE bypass grafts?True
  3. 3Which can be used the greater or lesser sapheous vein for CABG or LE bypass grafts?Both
  4. 4Can the cephalic and basilic veins be used for bypass grafts?Yes
  5. 5What is the pre operative assessment of vein for harvesting?determine suitability of vein to be harvested by assessing- if the saphenous vein is present, if the saphenous vein is patent, if it is continuous, any large varicosities, and the approx size
  6. 6What should the size of the Saphenous vein measure?2.5 mm or greater
  7. 7Why should you assess the deep system before vein harvesting?The Saphenous could be feeding the deep system if compromised, and if that is so then it will not be removed.
  8. 8What transducer do you use to assess the vein?7.5-10 MHz
  9. 9What is the protocol for Duplex Assessment?Bilateral study, evaluate deep system, CFV,SFV, POP compressibility. Then scan Saphenous in transverse measuring the diameter. Check for compressibility and look for irregularites
  10. 10At what levels in the Duplex assessment do you measure the Saphenous vein diameter?Groin, Proximal/mid/distal thigh, prox/ mid/ distal calf
  11. 11What are the 3 thing you should look for in determining if the GSV is a single system?Is there an accessory saphenous vein at the saphenofemoral junction, is there a bifid system when the GSV splits into two then reconnects in the distal thigh, are there any large branch varicose veins or large tributary veins
  12. 12How much will the vein diameter expand when it is arterialized?80-100%
  13. 13When is pre-op marking/ Mapping done?Either the night before or the same day
  14. 14What is the protocol for pre operative vein mapping?Clean the area with alcohol, begin at saphenofemoral junction with vein in center or transducer and mark with pen
  15. 15How does the leg need to be positioned in a vein mapping?Dependent position
  16. 16Where do you begin when you start your vein mapping?Saphenofemoral junction
  17. 17Where should the vein be in relation to the transducer?Center
  18. 18What do you do if the diameter of the GSV is less than 2.5mm?mark with dotted line to let the surgeon aware
  19. 19Should you mark larger perforators?Yes, incisions at a perforator increases the healing time
  20. 20What is another name for pre operative assessment of the radial artery?Alans manuever
  21. 21What is the Radial artery used for in harvesting?CABG due to its long term patency
  22. 22What are the advantages of harvesting radial arteries?It is the appropriate tissue for CABG, thicker walls, less intimal hyperplasia, better availability
  23. 23What are the contraindications for Radial Artery Harvesting?iscehmic digits, Raynauds syndrome, ipsilateral athero occlusive disease in arm, sclerotic atresic or occluded artery, incomplete Palmer arch in hand
  24. 24Which arm should the harvested artery come from?Less dominant
  25. 25What do you do to evaluate for Radial Artery Harvesting?take bilateral brachial pressures to rule out subclavian artery stenosis, duplex or PPG or complete palmer arch
  26. 26What do you do when performing at PPG?place sensors on thumb or index finger and 5th digit, compress radial artery and observe and record changes. Repeat on ulnar artery
  27. 27What does it mean during the PPG if the waveform flatlines during compression?Arch is not intact
  28. 28What do you do during duplex imaging of the radial artery?identify origin of RA at the brachial artery and measure the diameter distally to the wrist
  29. 29What are the average diameter of Distal RA for men? Women?2.8mm for men, 2.4 mm for women
  30. 30Should imaging be performed on both radial and ulnar arteries?Yes, to detect stenosis, occlusion, or atresia
  31. 31Besides measurement, what should you do while evaluating the radial artery?image and doppler artery. Flow should increase with compression of ulnar artery- repeat while compressing the radial

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Beschreibung
Vascular Karteikarten am Vein and Artery Mapping, erstellt von ecmarchese am 18/03/2014.
Erstellt von
ecmarchese
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62
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vascular
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