Spencer Alison, Clifford Collette
School of Health and Population Sciences, University of Birmingham, Edgbaston, UK.
Nurs Crit Care. 2009 May-Jun;14(3):131-8. doi: 10.1111/j.1478-5153.2008.00325.x.
To avoid the possible complications of prolonged intubation, it is necessary and advisable to attempt weaning from the tracheostomy tube at the earliest opportunity. However, while weaning protocols have proven successful in reducing ventilation time of critical care patients, there is little evidence of their use and impact on tracheostomy tube weaning time.
This pilot study sought to determine if the introduction of a new tracheostomy weaning protocol would reduce the time to extubation of the tracheostomy.
A quasi-experimental design used two groups of patients. A retrospective control group of patients (n = 20) who had been weaned using standard practice were identified by a search of medical records. A prospective experimental group (n = 20) had care planned using a new tracheostomy weaning protocol. Data relating to time to extubation were collected on both groups who were all patients in an eight-bedded Critical Care Unit of a District General Hospital. The same inclusion and exclusion criteria were applied to both groups.
The results revealed a reduction of 1.35 days from commencement of weaning to extubation in the prospective (experimental) group. This was not statistically significant (P = 0.181)
Although the findings from the study were not statistically significant, they can be seen as clinically significant in terms of patient comfort and reduced dependency in care by a reduction of time with a tracheostomy. It is recommended that a larger scale study be carried out to determine if a tracheostomy weaning protocol does make an impact on length of time to extubation in wider care settings.
为避免长期插管可能带来的并发症,尽早尝试从气管造口管撤机是必要且明智的。然而,尽管撤机方案已被证明在减少重症监护患者的通气时间方面取得成功,但几乎没有证据表明其在气管造口管撤机时间方面的应用及影响。
这项初步研究旨在确定引入新的气管造口管撤机方案是否会减少气管造口管拔管时间。
采用准实验设计,分为两组患者。通过查阅病历确定一组回顾性对照组患者(n = 20),他们采用标准方法撤机。一组前瞻性实验组(n = 20)则按照新的气管造口管撤机方案进行护理规划。两组均为一家地区综合医院八床位重症监护病房的患者,收集与拔管时间相关的数据。两组适用相同的纳入和排除标准。
结果显示,前瞻性(实验)组从开始撤机到拔管的时间减少了1.35天。但这在统计学上无显著差异(P = 0.181)。
尽管该研究结果在统计学上无显著差异,但从患者舒适度以及通过减少气管造口管使用时间降低护理依赖程度来看,可视为具有临床意义。建议开展更大规模的研究,以确定气管造口管撤机方案在更广泛的护理环境中是否真的会对拔管时间产生影响。