An Unusual Complication of Transseptal Puncture

Abstract

The interatrial septum is a structure with complex embryological development. The true atrial septum is a circumscribed structure, and transgression outside of this area during transseptal puncture may result in entry into the extracardiac space or aorta that may result in a pericardial effusion or cardiac tamponade. (Level of Difficulty: Intermediate.)

Keywords

• atrial fibrillation
• complication
• electrophysiology
• pericardial effusion