Abstract
BackgroundObtaining accurate information from a 112 caller is key to correct tasking of Helicopter Emergency Medical Services (HEMS). Being able to view the incident scene via video from a mobile phone may assist HEMS dispatch by providing more accurate information such as mechanism of injury and/or injuries sustained. The objective of this study is to describe the acceptability and feasibility of using live video footage from the mobile phone of a 112 caller as an HEMS dispatch aid.MethodsLive footage is obtained via the 112 caller’s mobile phone camera through the secure GoodSAM app’s Instant-on-scene™ platform. Video footage is streamed directly to the dispatcher, and not stored. During the feasibility trial period, dispatchers noted the purpose for which they used the footage and rated ease of use and any technical- and operational issues they encountered. A subjective assessment of caller acceptance to use video was conducted.ResultsVideo footage from scene was attempted for 21 emergency calls. The leading reasons listed by the dispatchers to use live footage were to directly assess the patient (18/21) and to obtain information about the mechanism of injury and the scene (11/21). HEMS dispatchers rated the ease of use with a 4.95 on a 5-point scale (range 4–5). All callers gave permission to stream from their telephone camera. Video footage from scene was successfully obtained in 19 calls, and was used by the dispatcher as an aid to send (5) or stand down (14) a Helicopter Emergency Medical Services team.ConclusionLive video footage from a 112 caller can be used to provide dispatchers with more information from the scene of an incident and the clinical condition of the patient(s). The use of mobile phone video was readily accepted by the 112 caller and the technology robust. Further research is warranted to assess the impact video from scene could have on HEMS dispatching.
Highlights
Obtaining accurate information from a 112 caller is key to correct tasking of Helicopter Emergency Medical Services (HEMS)
Previous studies have shown that mechanism of injury together with interrogation by the dispatcher had a sensitivity of 80.2% and under-triage of 19.7% for the identification of major trauma [6, 7], and a Dutch study showed an overall over-triage of 44% [8]
Call characteristics During the study period, video footage from scene was obtained by the HEMS dispatchers for 21 emergency calls
Summary
Obtaining accurate information from a 112 caller is key to correct tasking of Helicopter Emergency Medical Services (HEMS). Careful selection of patients who might benefit from HEMS interventions is important, as HEMS resources are limited [4], and being tasked to an incident that does not benefit from HEMS interventions may prevent a HEMS response at a concurrent incident that does It is the HEMS-dispatchers’ role to obtain crucial information about the scene, the mechanism of injury and the clinical state of the patient(s) in a timely manner, in order to decide whether a HEMS team should be dispatched or not. This is challenging, as bystanders making an emergency call are usually not medically trained, and are often emotionally affected by what they witness. Previous studies have shown that mechanism of injury together with interrogation by the dispatcher had a sensitivity of 80.2% and under-triage of 19.7% for the identification of major trauma [6, 7], and a Dutch study showed an overall over-triage of 44% [8]
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