What do you know about the catheter walk? Can you spot the difference?
#1
#2
The difference in electrode deflection from #1 to #2 can be minimal but one will result in successful creation, the other in failed creation. I'll use my crude, homemade model to try to explain:
In example #1, the arterial and venous electrodes are well aligned
With proper alignment, the arterial ceramic footplate will significantly deflect the venous electrode when walked
In example #2, the electrodes are askew
Although you may see some deflection with catheter walking, it will not be nearly as obvious and/or convincing. If you fire in an askew position, the venous electrode will miss the ceramic footplate and you won't get AVF creation
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