open cardiac operation的用法和樣例：
例句
- Michael DeBakey was a pioneer of open heart surgery, which has saved countless lives.
邁克爾是心內直視手術的開創者，救了無數人的生命。 - Objective The protective effects of shenfu injection on myocardial cell damagewere observed in patients undergoing open heart surgery.
目的觀察參附註射液對體外循環下心內直視手術患者心肌損傷標誌物的影響。
