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5 Cards in this Set
- Front
- Back
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Synthetic graphs |
Such as polytetrafluoroethylene, also know as PTFE, are composed of a manufactured material and have a shorter life expectancy than their counterpart (autogenous vein graft) |
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Autogenous vein graft Autogenous vein graft
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-Are created using the patient's own vein -The greater saphenous and small saphenous are commonly used -If none of these veins are available the cephalic vein or basilica vein in the upper extremities are sometimes used |
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In situations vein bypass graft |
-Using the great saphenous vein left in it's normal anatomical location -Branches of the vein are located and the internal valves are removed with a valvulotome to allow blood flow I'm the direction of the feet -The proximal end of the vein is anastomosis to the inflow artery and the distal end to the outflow artery |
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Reversed vein bypass graft |
Performed by completely respecting the great saphenous or other autogenous vein and reversing its normal orientation before attaching it to the arteries In this case the anatomical distal end is attached to the proximal inflow artery and the anatomical proximal end is attached to the distal outflow artery It is not necessary to remove the internal valves because in the reversed direction they do not prevent flow toward the feet |
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Orthograde vein bypass graft |
-Performed similarly to the reversed vein bypass graft by completely resecting the vein; however, with this technique the being is placed in it's normal anatomical direction and valves are removed -This allows for larger proximal portion of the vein to be attached to the proximal inflow artery and the smaller distal portion of the vein to be attached to the distal outflow artery |
