Effects of semirecumbent positions of different degrees on mechanical ventilation and prevention of compli-cations for ventilated patients
10.16571/j.cnki.1008-8199.2016.10.017
- VernacularTitle:半卧位不同角度对机械通气患者通气效果和并发症预防效果的临床观察
- Author:
Qixia JIANG
;
Juan LIU
;
Yuxiu LIU
- Publication Type:Journal Article
- Keywords:
Positioning;
Mechanical ventilation;
Ventilation-associated Pneumonia;
Pressure ulcer;
Prevention and control
- From:
Journal of Medical Postgraduates
2016;29(10):1083-1088
- CountryChina
- Language:Chinese
-
Abstract:
Objective Mechanical ventilation is an important life support treatment in ICU, however, patients are at high risk for ventilator?associated pneumonia(VAP) and other complications which can increase the risk of death. In the article, comparative investigation was made on ventilation effects of different degrees of semirecumbent positions and preventive effects of VAP and pressure ulcers in order to provide evidence for preferred position. Methods 46 patients were divided into 30° group and 45° group in halves according to the angle of semirecumbent position. Patient position changes were performed among semirecumbent, right and left laterally inclined positions every two hours in both groups for consecutive 7 days. The peak airway pressure (PAP) and minute ventilation (MV) changes were measured every half an hour in two hours after semire?cumbent positioning every day during ventilation. The pressure of arte?rial oxygen(PaO2), pressure of arterial carbenoxide (PaCO2) and PaO2/FiO2(fraction of inspired oxygen,FiO2) were tested every day during intervention, along with the observation on the incidence of VAP and pressure ulcers. Results MV at each time point was normal in two hours after semirecumbent positioning in both groups with no changes to prolonged time ( P<0.05) . PAP increased with the prolonged time at each time point, which was higher in 45° group compared with 30°group(P<0.05). No significant difference was found in the incidence of VAP and pressure ulcers between two groups (P>0.05). Conclusion Both 45° and 30°semirecumbent po?sitions can be applied in ventilated patients and the patient′s medical condition and tolerance are the keys when choosing preferred posi?tion and duration.
