A complication of cannula misplacement into transverse pericardial sinus via atrial septal dissection during atrial fibrillation ablation
Zeng Shan
Zhao Peng
Abstract：Cannula misplacement into transverse sinus of pericardium via atrial septal dissection(ASD)is a rare complication of transseptal access.We present a patient who developed ASD by the method of ablation catheter probing of the previous transseptal puncture site during percutaneous radiofrequency ablation for atrial fibrillation.The catheter and long sheath were advanced into transverse pericardial sinus via ASD.3 D rotational fluoroscopy and cardiac magnetic resonance imaging were performed to confirm the diagnosis.We emphasize that atrial septal puncture at lower site of oval fossa and recording the puncture trail by 3 D mapping system to guide the second transseptal access should be considered to avoid this complication.
Keywords：Catheter ablationTransseptal punctureAtrial septal dissectionTransverse pericardial sinusComplication
Publication Date：2025-05-20
Online Publishing Date：2025-11-20(First online date of this platform, not the publication date of the document)
Pages：3( 78-80 )