Study on the optimal suctioning negative pressure based on sputum viscosity in brain-injured patients with tracheotomy
10.3761/j.issn.0254-1769.2009.08.007
- VernacularTitle:脑外伤患者气管切开后不同黏稠度痰液适宜吸痰负压的临床研究
- Author:
Meifen SHEN
;
Haiying ZHANG
- Publication Type:Journal Article
- Keywords:
Craniocerebral Trauma;
Sputum;
Suction;
Oximetry
- From:
Chinese Journal of Nursing
2009;44(8):694-697
- CountryChina
- Language:Chinese
-
Abstract:
Objective To determine the optimal suetioning negative pressure based on various sputum viscosity in brain-in-jured patients with tracheotomy. Methods Forty-three traumatic brain-injured patients with traeheotomy were recruited in the study. The negative pressure was determined based on the grade of sputum viscosity. Grade Ⅰ sputum was suetioned with the negative pressure of 13.3kPa,16.0kPa,20.0kPa and 24.0kPa, while Grade Ⅱ sputum with 20.0kPa,24.0kPa,26.TkPa and 29.3kPa,and Grade Ⅲ sputum with 26.7kPa,29.3kPa, 33.3kPa and 37.2kPa. The oxygen saturation(SpO2)was mort-itored before and lmin,3min,5min after endotracheal suctioning. At the same time,the suctioning time and tissue trauma were recorded. The data were analyzed by repeated measures analysis of variance with SPSS 13.0 software. Results The results showed that the optimal negative pressure was 13.3-16.0kPa for grade Ⅰ sputum,24.0-26.7kPa for grade Ⅱ sputum and 33.3kPa for grade Ⅲ sputum,which could ensure the minimum decrease of SpO2 and control the suctioning time within 25s or 30s respectively. Conclusion For traumatic brain-injured patients,varions negative pressure should be selected based on the sputum viscosity by the clinical nurses when suctioning is performed,in order to avoid hypoxemia and tissue trauma caused by suctioning.
