Improving the delivery of acute NIV at Kings Mill Hospital: A closed loop quality improvement project.

Background: The British Thoracic Society (BTS) Acute Non-Invasive Ventilation (NIV) standards state all patients who require acute NIV should be initiated on NIV within two hours of hospital admission. The delivery of acute NIV is a time critical intervention as prompt application of acute NIV substantially reduces mortality for patients with acute hypercapnic respiratory failure.

Objective: This audit aimed to assess the number of patients for whom there is a delay in the initiation of acute NIV. We also assessed the outcome of admission for patients started on acute NIV.

Methods: Data was collected on patients admitted to Kings Mill Hospital for acute NIV between 1/2/2019 and 31/3/2019. Awareness and knowledge of acute NIV was highlighted as an area for improvement. E-learning packages on 'Acute NIV' were designed and sent to medical-staff. The audit was repeated for patients admitted for acute NIV between 1/2/2020 and 31/3/2020 and analysed using chi-square tests.

Results: 25 patients were included in the initial audit and 30 patients in the re-audit. Prior to intervention 31% of patients had a delay in the initiation of acute NIV, which increased to 77% post-intervention (p < 0.0001). Prior to intervention there was a mortality rate of 17% and a mortality rate of 13% post-intervention (p > 0.05).

Conclusion: Further work is required to ensure the sustained delivery of acute NIV to BTS standards, however variable achievements in the targets does not seem to have a significant adverse effect on patient outcomes.