Clinical Research

In this case, we describe the completion of emergency front-of-neck access by a novice provider facilitated by specialist telehealth support. A facility with limited advanced airway skills requested telehealth support for a critically unwell patient with severe hypoxic respiratory failure and acute delirium. Attempts to temporise his physiology with ketamine-facilitated non-invasive ventilation were unsuccessful, and he proceeded to rapid sequence intubation. Ultimately, intubation was unsuccessful and attempts at ventilation by laryngeal mask also failed. A Cannot Intubate, Cannot Oxygenate scenario was identified. The referring team had significant anxiety about performing a surgical front-of-neck access procedure. However, with telehealth support, this was ultimately completed by a novice provider, and the patient stabilised. The key issue identified was the need for the telehealth provider to take clinical governance of the procedure. The referring team also required assistance in completing an adequate neck incision, responding to bleeding, and determining the preferred technique.

Methods: A retrospective chart review of 3582 aeromedical trauma cases was conducted. An initial TRTS, GAP score and SI were calculated for each patient, and the administration of in-flight blood products was also recorded. Receiver operating characteristic (ROC) curves were used to quantify the predictive discrimination of the TRTS, GAP score and SI on the need for in-flight blood product administration.

Results: The SI showed a superior predictive value compared to the TRTS and GAP score. The SI showed an area under the curve on the ROC curve of 0.85 in both primary and inter-hospital transfer cases, indicating reasonable predictive value.

Methods: Retrospective observational study of VAPOX performed at LifeFlight Retrieval Medicine (LRM) between January 2018 and December 2022 across Queensland, Australia. Demographic and clinical data were recorded. Descriptive statistics and paired Student’s t-tests were used to evaluate the efficacy of VAPOX on oxygen saturation (SpO₂).

Results: VAPOX was used in 40 patients. Diagnoses included pneumonia (n = 11), COPD (n = 6) and neurological (n = 7). Patients were intubated in hospital (n = 36), in helicopter (n = 2) and ambulance (n = 2). Median VAPOX settings were: positive end-expiratory pressure 6 (IQR 5–9), pressure support 10 (IQR 10–14) and back up respiratory rate 14 (IQR 11–18). Twelve agitated patients underwent delayed sequence induction with ketamine. There was a statistically significant increase in SpO₂ after application of VAPOX (P < 0.001), followed by a slight decrease after intubation (P = 0.006). Mean SpO₂ were significantly improved after intubation compared with on arrival of LRM (P = 0.016). Hypotension was present prior to VAPOX (n = 13), during VAPOX (n = 2) and post-intubation (n = 15). Two patients had cardiac arrest. Three patients were started on VAPOX but subsequently failed. There were no significant oxygen depletion or aspiration events.