1
1.Significant mediastinal bleeding (>100ml/hr)
2
High CVP ( cvp > in operation note )
4
Bleeding at sternal wound
5
Significant mediasternal bleeding then sudden clotted PM drain
6
EKG : QRS มีลักษณะสูงๆต่ำๆหรือไม่ ( electrical alternans )
7
Hypotension / narrow pulse pressure