A<unk>  is a cardiac surgical procedure to create a fistula – or<unk> " – from the<unk>  space to the pleural cavity. The purpose of the<unk>  is to allow a<unk>  effusion or cardiac tamponade to drain from the space surrounding the heart into the chest cavity.
Pericardial window
Pericardiectomy
Corticotomy
Pericardiocentesis
Cardiomyoplasty
Median sternotomy
Balloon tamponade
Aortic cross-clamp