Dj. Kessler et al., INTRACARDIAC SHUNTS RESULTING FROM TRANSSEPTAL CATHETERIZATION FOR ABLATION OF ACCESSORY PATHWAYS IN OTHERWISE NORMAL HEARTS, The American journal of cardiology, 82(3), 1998, pp. 391
In a series of 14 patients undergoing transseptal catheterization for
ablation of left-sided accessory pathways, hydrogen appearance time wa
s used to detect left-to-right shunting after removal of the catheter.
Six of the 12 patients who had no evidence of shunt before catheteriz
ation had evidence of shunting after the procedure.