Feasibility and impact of a bespoke pre-hospital point of care ultrasound teaching and training programme at London's air ambulance service.

Abstract

Point-of-care ultrasound has seen an increase in its use in pre-hospital emergency care. There is lack of literature around the training requirement for point-of-care ultrasound of pre-hospital clinicians. This service evaluation assesses the effectiveness of a bespoke hybrid teaching programme. This is a service evaluation of the point-of-care ultrasound teaching programme at London's Air Ambulance from 1 April to 28 May 2021. Subjects' knowledge, image interpretation and confidence were assessed at two different points. Data were gathered using REDCap and exported to Excel for analysis. Mean values and delta were calculated, and t-test was applied for statistical significance. In total, 57 participants were included; out of which 11 were excluded, as they did not complete a post-course survey. Of these, 41.3% participants were point-of-care ultrasound naïve. Mean pre- and post-course scores were 76.5% and 81.7%, respectively, with an average delta improvement of 5.2% (95% confidence interval = 4.70%-5.68%) which was statistically significant (p < 0.002). There was a statistically significant mean improvement of pre- and post-course scores between point-of-care ultrasound naïve and point-of-care ultrasound experienced groups (p = 0.014). Confidence in using point-of-care ultrasound showed mean overall improvement from 2.36/4 to 3.34/4, a mean difference of 0.98 (95% confidence interval = 0.61-1.34), which was statistically significant (p = 0.0039). Our service evaluation highlighted that a hybrid teaching model used by London's Air Ambulance was feasible and had shown significant improvement in the knowledge, image interpretation and confidence of both the point-of-care ultrasound naïve and the PoCUS experienced cohort of clinicians.