Endoscopic Ultrasound-Guided Transesophageal Pericardiocentesis in the Treatment of Localized Cardiac Tamponade Following Coronary Perforation.

We present a case of an 81-year-old male patient who developed a posteriorly localized pericardial effusion and tamponade of the left atrium after percutaneous intervention of the right coronary artery. Endoscopic ultrasound-guided transesophageal pericardiocentesis was performed when conventional transthoracic and surgical access options were associated with unacceptable risk.