Tracheostomy care and outcomes during the COVID-19 pandemic- an observational cohort perspective from Cardiff

ABSTRACT

Introduction: Prior to the COVID-19 pandemic an estimated 5000 surgical and 12000 percutaneous tracheostomies were completed in the UK each year.1 A UK study looking at COVID-19 tracheostomy outcomes found 1605 tracheostomy cases from 126 hospital, median time from intubation to tracheostomy was 15 days while 285 (18%) patients died following the procedure.2 COVID-19 patients also typically spend longer in critical care with prolonged time receiving organ support when compared to patients diagnosed with other viral pneumonias.3 Incidence of laryngeal pathologies are also higher in COVID-19 patients post tracheostomy.4 Objectives: The aim of this observational study was to review the outcomes of patients post tracheostomy insertion during the COVID-19 pandemic compared to non-COVID patients. Method(s) A service evaluation was completed including all patients requiring a tracheostomy since the beginning of the COVID-19 pandemic in March 2020 within University Hospital Wales, Cardiff. Data was captured from local tracheostomy databases. Patients were grouped into either COVID or non-COVID based on their clinical history. The key outcomes evaluated were number of tracheostomies, average time to cuff deflation and decannulation, critical care and hospital length of stay, occurrence of adverse events and time from critical care admission to tracheostomy insertion. Data was evaluated using descriptive statistics using Microsoft ExcelTM. Result(s) During the review period 58 patients with COVID-19 and 158 without required a tracheostomy. In the COVID-19 group cuff deflation occurred at a median of 10 days post insertion compared to 7 days. Decannulation occurred at a median of 16 days in patients with COVID-19 compared to 18 days. The rate of decannulation was also higher in the COVID-19 group at 74.1% compared to 67.1%. Critical care length of stay was 37 days in the COVID-19 compared to 25 days. Time from intubation to tracheostomy was comparable between groups at a median of 16 days for our COVID-19 cohort compared to 15 days. The incidence of clinical incidents was higher in the non-COVID-19 group at 10.1% compared to 5.2%. Conclusion(s) This internal service evaluation has shown that COVID-19 patients typically spend longer in critical care but their time to decannulation was shorter and their rate of decannulation was higher in our cohort then in the comparison group. This could be due to the tertiary neuroscience and major trauma specialities within our Health Board. Both with groups of patients that, due to the nature of their injuries may require prolonged periods of tracheostomy insertion even after critical care discharge.