'The incident triage area': a response to the COVID-19 pandemic in the Bristol Royal Infirmary.

With the onset of the COVID-19 pandemic, hospitals nationwide have been presented with a number of potential challenges, including possible increased volume of patient attendances, acuity of illness and potential for patients to present with an infection that requires isolation. At the Bristol Royal Infirmary, an innercity teaching hospital that manages patients aged 16 and over, we present our response to these projected changes in ED attendances, with the initiation of the incident triage area (ITA). The ITA is a triage station situated outside the ED and staffed by a senior clinician, healthcare assistant and patient flow coordinator. It receives patients presenting as walk-in or via ambulance, and on their arrival aims to establish their risk of COVID-19 and their acuity of illness. This allows for triage of the patient to one of the four zones of the hospital, as well as providing clinical guidance on any initial interventions that patients may require. The benefits of the ITA are that it enables an early senior review of patients to establish their acuity of illness and initiate time-critical medical intervention as required. In addition, patients are immediately cohorted to zones within the hospital based on their infection risk, thereby reducing patient footfall throughout the hospital. Its aim is to reduce the spread of infection, by efficiently triaging and streaming patients who present to the hospital prior to them entering clinical areas, while maintaining patient safety and flow through the ED and initiating rapid management of acutely unwell patients.

Pre-hospital lowest recorded oxygen saturation independently predicts death in patients with COVID-19.

BACKGROUND: The coronavirus disease 2019 (COVID-19) results in hypoxia in around a fifth of adult patients. Severe hypoxia in the absence of visible respiratory distress ('silent hypoxia') is increasingly recognised in these patients. There are no published data evaluating lowest recorded pre-hospital oxygen saturation or pre-hospital National Early Warning Score 2 (NEWS2) as a predictor of outcome in patients with COVID-19. METHODS: In this retrospective service evaluation, we included adult inpatients with laboratory confirmed COVID-19 who were discharged from hospital or who died in hospital between 12 March and 28 April 2020 (n = 143). Pre-hospital and in-hospital data were extracted and analysed to explore risk factors associated with in-hospital mortality to inform local triage and emergency management. RESULTS: The lowest recorded pre-hospital oxygen saturation was an independent predictor of mortality when controlling for age, gender and history of COPD. A 1% reduction in pre-hospital oxygen saturation increased the odds of death by 13% (OR 1.13, p < 0.001). Lower pre-hospital oxygen saturation predicted mortality after adjusting for the pre-hospital NEWS2 (OR for a 1% reduction in pre-hospital oxygen saturation 1.09, p = 0.02). The pre-hospital NEWS2 was higher in those who died (Median 9; IQR 7-10; n = 24) than in those who survived to discharge (Median 6; IQR 5-8; n = 63). CONCLUSION: This service evaluation suggests that the lowest recorded pre-hospital oxygen saturation may be an independent predictor of mortality in COVID-19 patients. Lowest pre-hospital oxygen saturation should be recorded and used in the assessment of patients with suspected COVID-19 in pre-hospital and emergency department triage settings.