This study is designed to understand the characteristics, values on echocardiography, in baseline catherization and these preoperative tests as the criteria for good operability. Method: cross-sectional study. Result: Severity in this group of patient on echocardiography systolic arterial pulmonary pressure, average 92 ±15.02 mmHg, on catherization, there are 45.2% with Rp > 8 Wood, 11.4% with Rp / Rs > 0.5, 32% with Qp / Qs < 2.