High frequency ultrasound-guided pericardiocentesis performed in the sitting position: A novel apical approach.

This novel in-plane high frequency US-guided apical approach has several advantages for percutaneous pericardiocentesis of MPE: performed in the sitting position; a benefit for patients with orthopnea; a maximum inserted wide angle to prevent damage to the myocardium; local enlargement of the PE region; high procedure success rate of pericardiocentesis; and excellent clinical outcomes.