Blair Laura, Duffy Richelle
North East Ambulance Service NHS Foundation Trust ORCID iD: https://orcid.org/0000-0001-9846-9429.
Northumbria University ORCID iD: https://orcid.org/0000-0002-7180-8707.
Br Paramed J. 2022 Sep 1;7(2):24-30. doi: 10.29045/14784726.2022.09.7.2.24.
Mechanical chest compression devices (MCCDs) provide chest compressions mechanically to a person in cardiac arrest. Those chest compressions would usually be provided manually. Previous studies into the use of MCCDs have focused on the quantitative outcomes, with little emphasis on the qualitative experiences of those using MCCDs.
To collect and report ambulance crews' experiences of using MCCDs for out-of-hospital resuscitation attempts.
The philosophical approach was constructivist, the methodology qualitative and the data collection method online focus groups. Convenience sampling was used to recruit participants who met the inclusion criteria, which broadly were to have experience of using MCCDs for out-of-hospital resuscitation. There have been two types of MCCD used locally. Participants were included regardless of which type of device they had experience of. Similarly, participants were included whether they had active or passive experience of the devices. The focus groups were recorded, fully transcribed and then analysed using constant comparison.
Four selective codes emerged. These were factors directly affecting ambulance crew members; practicalities of a resuscitation attempt; ambulance crew members' perceptions, experiences and thoughts; negatives of MCCDs.
The main perceptions arising from the participants' discussion in this work were that MCCD use could potentially provide psychological protection to ambulance crew members when reflecting on resuscitation attempts, and participants felt there is an overall reduction of cognitive load for ambulance crew members when using MCCDs for resuscitation attempts. There were particularly timely benefits expressed of MCCDs easing the physical fatigue of a resuscitation attempt when responding wearing personal protective equipment, as has been required during the COVID-19 pandemic. MCCDs were felt to be of benefit when transporting a patient in cardiac arrest but differences were expressed as to whether the LUCAS-2 in particular helps or hinders extrication of a patient.
机械胸外按压装置（MCCD）为心脏骤停患者进行机械胸外按压。以往通常由人工进行胸外按压。此前关于使用MCCD的研究主要集中在定量结果上，很少关注使用MCCD者的定性体验。
收集并报告救护人员使用MCCD进行院外复苏尝试的经验。
采用建构主义哲学方法，定性研究方法以及在线焦点小组的数据收集方法。采用便利抽样招募符合纳入标准的参与者，大致标准为有使用MCCD进行院外复苏的经验。当地使用过两种类型的MCCD。无论参与者使用过哪种类型的装置均纳入研究。同样，无论参与者对这些装置有主动还是被动体验都纳入研究。焦点小组进行了录音、完整转录，然后采用持续比较法进行分析。
出现了四个选择性编码。分别是直接影响救护人员的因素；复苏尝试的实际情况；救护人员的认知、经验和想法；MCCD的负面影响。
参与者在本研究讨论中产生的主要认知是，使用MCCD在回顾复苏尝试时可能为救护人员提供心理保护，并且参与者认为在使用MCCD进行复苏尝试时救护人员的认知负荷总体上有所降低。特别提到的是，如在新冠疫情期间所要求的，当穿着个人防护装备进行急救时，MCCD有助于减轻复苏尝试中的身体疲劳。人们认为在运送心脏骤停患者时MCCD是有益的，但对于LUCAS - 2尤其是否有助于或阻碍患者解救存在不同看法。
