Gamble Miriam, Luggya Tonny Stone, Mabweijano Jacqueline, Nabulime Josephine, Mowafi Hani
Department of Emergency Medicine, Yale University, New Haven, United States.
Department of Anesthesia, School of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda.
Afr J Emerg Med. 2020 Dec;10(4):181-187. doi: 10.1016/j.afjem.2020.05.013. Epub 2020 Jun 19.
Throughout the world, traumatic brain injury (TBI) is one of the leading causes of morbidity and mortality. Low-and middle-income countries experience an especially high burden of TBI. While guidelines for TBI management exist in high income countries, little is known about the optimal management of TBI in low resource settings. Prevention of secondary injuries is feasible in these settings and has potential to improve mortality.
A pragmatic quasi-experimental study was conducted in the emergency centre (EC) of Mulago National Referral Hospital to evaluate the impact of TBI nursing education and use of a monitoring tool on mortality. Over 24 months, data was collected on 541 patients with moderate (GCS9-13) to severe (GCS≤8) TBI. The primary outcome was in-hospital mortality and secondary outcomes included time to imaging, time to surgical intervention, time to advanced airway, length of stay and number of vital signs recorded.
Data were collected on 286 patients before the intervention and 255 after. Unadjusted mortality was higher in the post-intervention group but appeared to be related to severity of TBI, not the intervention itself. Apart from number of vital signs, secondary outcomes did not differ significantly between groups. In the post-intervention group, vital signs were recorded an average of 2.85 times compared to 0.49 in the pre-intervention group (95% CI 2.08-2.62, p ≤ 0.001). The median time interval between vital signs in the post-intervention group was 4.5 h (IQR 2.1-10.6).
Monitoring of vital signs in the EC improved with nursing education and use of a monitoring tool, however, there was no detectable impact on mortality. The high mortality among patients with TBI underscores the need for treatment strategies that can be implemented in low resource settings. Promising approaches include improved monitoring, organized trauma systems and protocols with an emphasis on early aggressive care and primary prevention.
在全球范围内,创伤性脑损伤(TBI)是发病和死亡的主要原因之一。低收入和中等收入国家的TBI负担尤其沉重。虽然高收入国家存在TBI管理指南,但对于资源匮乏地区TBI的最佳管理知之甚少。在这些地区预防继发性损伤是可行的,并且有可能降低死亡率。
在穆拉戈国家转诊医院的急诊科进行了一项实用的准实验研究,以评估TBI护理教育和使用监测工具对死亡率的影响。在24个月的时间里,收集了541例中度(GCS9-13)至重度(GCS≤8)TBI患者的数据。主要结局是住院死亡率,次要结局包括成像时间、手术干预时间、建立高级气道时间、住院时间和记录的生命体征数量。
在干预前收集了286例患者的数据,干预后收集了255例患者的数据。干预后组的未调整死亡率较高,但似乎与TBI的严重程度有关,而非干预本身。除生命体征数量外,两组间的次要结局无显著差异。在干预后组,生命体征平均记录2.85次,而干预前组为0.49次(95%CI 2.08-2.62,p≤0.001)。干预后组生命体征之间的中位时间间隔为4.5小时(IQR 2.1-10.6)。
通过护理教育和使用监测工具,急诊科对生命体征的监测得到了改善,然而,对死亡率没有可检测到的影响。TBI患者的高死亡率凸显了在资源匮乏地区可实施的治疗策略的必要性。有前景的方法包括改善监测、有组织的创伤系统和方案,重点是早期积极治疗和一级预防。