The time of mechanical ventilation and vasopressors used in CIT group was shorter than those in CT group (P<0.05).
经典治疗联合免疫调理治疗组患者机械通气和使用升压药的时间较经典治疗组明显缩短（P<0.05）；
The time of mechanical ventilation and ICU staying were significantly shorter in MUF group than that in CUF group ( P< 0 05).
与CUF组相比，MUF组的呼吸机辅助通气时间和ICU监护时间均明显缩短（P< 0 0 5 ）。
Conclusion Inspiratory muscle training before CABG can improve respiratory function, decrease postsurgical pulmonary complications and shorten the time of mechanical ventilation.
结论CABG术前吸气肌锻炼能明显改善患者术前肺功能，缩短术后机械呼吸支持时间，减少术后肺部并发症的发生。
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