AVF aneurysm occurs when repeated cannulation in a same general area and can also be due to back pressure from a stenosis occurring just beyond the aneurysm.
Try avoiding cannulating from the side of the vessel or turning your hand when cannulating as this will cause cutting the vessel from the side and can cause side infiltration.
The vessel intended to be cannulated is restrained and this will cause the vessel to be engorged. After identifying the spot to be cannulated, used fingers of the less dominate hand to secure the vessel and use the middle finger holding the AVF needle to taut (pull) the skin of the AVF while inserting the needle.
Another method of hand placement is to use the thumb of the less dominate hand to compress the distal part of the vessel to be cannulated. The index finger is use to tout the skin area near the cannulation site. The dominate hand is to hold the needle. As for the venous AVF needle, the index finger of the less dominate hand is use to compress the distal part of the vessel while the thumb is use to tout the skin area near the cannulation site.
Ensure that your AVF needle is attached to a syringe half filled with either Normal Saline or Heparinised Saline. Open the clamp of the AVF needle, slowly but surely advance the needle to the center of the vein. When the AVF needle enter the vessel a gush of blood can be seen entering the syringe.
Level the AVF needle and advance the needle into the center of the vessel. Anchor the AVF needle securely with surgical tape. Release any restrain used in the procedure immediately. Flush the syringe to check for good blood flow in the AVF needle. Observed for any infiltration if any.
After both needles are in and secured, you are ready to start the treatment proper.....
No comments:
Post a Comment