Comments on “Treatment of Pericardial Effusion Through Subxiphoid Tube Pericardiostomy and Computerized Tomography - Or Echocardiography - Guided Percutaneous Catheter Drainage Methods” - Kyriakos Spiliopoulos; Dimitrios Magouliotis; John Skoularigis; Filippos Triposkiadis (Brazilian Journal of Cardiovascular Surgery, 2019)