冠脉搭桥机械通气期间膨肺吸痰的作用及监护

目的探讨膨肺吸痰在冠脉搭桥机械通气期间预防并发症的意义。方法对24例冠脉搭桥机械通气期间使用膨肺吸痰93次,观察吸痰前后HR、SaO2、MAP的变化。结果HR、MAP、69次吸痰前SaO2>95%,吸痰前后差异无显著性(P>0.05),24次吸痰前SaO2<95%,吸痰前后有明显差异(P<0.05),氧饱和度有明显上升。结论膨肺吸痰可有效保持呼吸道通畅,减少负压吸引可能引起的肺不张及低氧血症,减少体力消耗及心脏负担,促进心脏手术后病人早日康复。

Effect and Monitoring of Lung Inflation and Sputum Aspiration During Mechanical Ventilation in Patients Undergoing Coronary Bypass

Objective To explore the effect of lung inflation and sputum aspiration on preventing complications during mechanical ventilation in patients undergoing coronary bypass. Method A total of 24 cases of patients after coronary bypass underwent lung inflation and sputum aspiration 93 times. The index of heart rate(HR), mean arterial pressure (MAP) and oxygen saturation (SaO_2)was observed and recorded. Results SaO_2 was significantly improved after suctioning and the difference of the index before and after suctioning was significant (P<0.05) under the premise that SaO_2 was dropped below 95% before suctioning, while not under the premise that SaO_2 was maintained 95% or more before suctioning. Conclusion Lung inflation and sputum aspiration play an important role in keeping respiratory tract unobstruct , lessening the incidence of atelectasis and hypoxemia caused by vacuum suction, reducing cardiac load and promoting the recovery.