The Relationship Between Clot Thickness and Current Quantity
(A) As current delivering negative charge increases, the thickness of clot formed on the catheter tip decreases. There appears to be a threshold near 100 μA where the formation of coagulum can be prevented. An interesting observation is that between 13.96 μA and 67.65 μA, there appears to be a plateau in the effect of negative charge on clot thickness. (B) When the polarity of the current delivering the charge was reversed, that is, to a positive charge, an inverse relationship was observed, with an increase in clot thickness with increase in the current delivering the positive charge. The data indicated that the minimum current required to prevent clot formation was approximately 100 μA.