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Figure 5 New Transseptal Catheterization Techniques Using a Radiofrequency Catheter or an Internal Jugular Vein Approach
(A) A radiofrequency catheter is inserted into dilator and sheath and ablates a thickened atrial septum to cross into the left atrium (courtesy of Radiofrequency Transseptal System, Baylis Medical, Montreal, Quebec, Canada). (B) The LA-Crosse system uses a stabilizer sheath, a guide catheter, and a flexible puncture screw to safely cross the atrial septum from the right internal jugular vein (courtesy of St. Jude Medical, St. Paul, Minnesota).
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