Objective To investigate the changes of central respiratory drive and inspiratory muscle function in patients with dermatomyositis.

目的了解皮肌炎患者呼吸中枢肺的功能变化。

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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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Objective to evaluate the efficiency of inspiratory muscle training to improve respiratory function and prevent pulmonary complications after coronary artery bypass graft (CABG).

目的评价冠状动脉搭桥手术(CABG)术前吸气肌锻炼对改善患者肺功能、预防术后肺部并发症的作用。

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