in 4 groups ( i-iv ) with a total of 659 patients ( 18 to 72 years old ) undergoing open cardiac surgery for acquired heart disease ( i : aortic valve , ii : mitral valve , iii : multivalvular disease , iv : coronary artery disease ) postoperative cardio-circulatory and pulmonary complication rate , duration of artificial ventilation needed , pao2 and some influencing factors have been evaluated .
C0003501
aortic valve
C0018787
cardio