Evaluation Of CPR Quality Via Smartphone With A Video Livestream – A Study In A Metropolitan Area

Ecker, Hannes; Wingen, Sabine; Hamacher, Stefanie; Lindacher, Falko; Böttiger, Bernd W.; Wetsch, Wolfgang A.

doi:10.1080/10903127.2020.1734122

Cited by 18 publications

(32 citation statements)

References 16 publications

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“…The dispatchers also expressed that patient care improved in approximately one-third of cases after adding live video to the call. Simulation studies have shown that video-assisted dispatching may improve the quality of cardiopulmonary resuscitation provided compared to the audio-instructed method [24,25]. In Seoul, South Korea, a video protocol has been implemented in case of outof-hospital cardiac arrest [16].…”

Section: Discussionmentioning

confidence: 99%

Live video from bystanders’ smartphones to medical dispatchers in real emergencies

et al. 2021

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Background Medical dispatchers have limited information to assess the appropriate emergency response when citizens call the emergency number. We explored whether live video from bystanders’ smartphones changed emergency response and was beneficial for the dispatcher and caller. Methods From June 2019 to February 2020, all medical dispatchers could add live video to the emergency calls at Copenhagen Emergency Medical Services, Denmark. Live video was established with a text message link sent to the caller’s smartphone using GoodSAM®. To avoid delayed emergency response if the video transmission failed, the medical dispatcher had to determine the emergency response before adding live video to the call. We conducted a cohort study with a historical reference group. Emergency response and cause of the call were registered within the dispatch system. After each video, the dispatcher and caller were given a questionnaire about their experience. Results Adding live video succeeded in 838 emergencies (82.2% of attempted video transmissions) and follow-up was possible in 700 emergency calls. The dispatchers’ assessment of the patients’ condition changed in 51.1% of the calls (condition more critical in 12.9% and less critical in 38.2%), resulting in changed emergency response in 27.5% of the cases after receiving the video (OR 1.58, 95% CI: 1.30–1.91) compared to calls without video. Video was added more frequently in cases with sick children or unconscious patients compared with normal emergency calls. The dispatcher recognized other or different disease/trauma in 9.9% and found that patient care, such as the quality of cardiopulmonary resuscitation, obstructed airway or position of the patient, improved in 28.4% of the emergencies. Only 111 callers returned the questionnaire, 97.3% of whom felt that live video should be implemented. Conclusions It is technically feasible to add live video to emergency calls. The medical dispatcher’s perception of the patient changed in about half of cases. The odds for changing emergency response were 58% higher when video was added to the call. However, use of live video is challenging with the existing dispatch protocols, and further implementation science is necessary.

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Section: Discussionmentioning

confidence: 99%

Live video from bystanders’ smartphones to medical dispatchers in real emergencies

et al. 2021

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“…However, device and image quality parameters were not mentioned. More recently, in two of our own previous studies, we tested V-CPR via smartphones in a randomized controlled trial on 150 participants in a wifi-setting and under realistic conditions in a metropolitan area using a mobile telephone network [ 13 , 18 ]. Both studies used a video livestream from a Samsung Galaxy S7, which delivers a video quality comparable to the medium and high quality setting in the present study.…”

Section: Discussionmentioning

confidence: 99%

“…To date, video-assisted CPR remains almost unknown in EMS systems around the world. Recently, this feature has been implemented in a software that can be routinely used for EMS dispatch centres, and first studies have shown that this technology can be used to judge a layperson’s CPR efforts and correct them, if necessary [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Impact of video quality when evaluating video-assisted cardiopulmonary resuscitation: a randomized, controlled simulation trial

et al. 2021

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Background Although not routinely established during cardiopulmonary resuscitation (CPR), video-assisted CPR has been described as beneficial in the communication with emergency medical service (EMS) authorities in out-of-hospital cardiac arrest scenarios. Since the influence of video quality has not been investigated systematically and due to variation of quality of a live-stream video during video-assisted CPR, we investigated the influence of different video quality levels during the evaluation of CPR performance in video sequences. Methods Seven video sequences of CPR performance were recorded in high quality and artificially reduced to medium and low quality afterwards. Video sequences showed either correct CPR performance or one of six typical errors: too low and too high compression rate, superficial and increased compression depth, wrong hand position and incomplete release. Video sequences were randomly assigned to the different quality levels. During the randomised and double-blinded evaluation process, 46 paramedics and 47 emergency physicians evaluated seven video sequences of CPR performance in different quality levels (high, medium and low resolution). Results Of 650 video sequences, CPR performance was evaluable in 98.2%. CPR performance was correctly evaluated in 71.5% at low quality, in 76.8% at medium quality, and in 77.3% at high quality level, showing no significant differences depending on video quality (p = 0.306). In the subgroup analysis, correct classification of increased compression depth showed significant differences depending on video quality (p = 0.006). Further, there were significant differences in correct CPR classification depending on the presented error (p < 0.001). Allegedly errors, that were not shown in the video sequence, were classified in 28.3%, insignificantly depending on video quality. Correct evaluation did not show significant interprofessional differences (p = 0.468). Conclusion Video quality has no significant impact on the evaluation of CPR in a video sequence. Even low video quality leads to an acceptable rate of correct evaluation of CPR performance. There is a significant difference in evaluation of CPR performance depending on the presented error in a video sequence. Trial registration German Clinical Trial Register (Registration number DRKS00015297) Registered on 2018-08-21.

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“…77 Video communication may also aid the caller-rescuer team to identify and perform high-quality CPR. 78…”

Section: Telecommunicator Interfacementioning

confidence: 99%

Out of hospital cardiac arrest: Past, present, and future

et al. 2021

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Advances in resuscitation following out-of-hospital cardiac arrest (OHCA) provide an opportunity to improve public health. This review reflects on past developments, present status, and future possibilities using the science-education-implementation framework of the Utstein Formula and the clinical framework of the links in the chain of survival. With the discovery of CPR and defibrillation in the mid 20th century, resuscitation developed a scientific construct for progress. Systems of emergency community response provided operational efficiency to treat OHCA.Contemporary resuscitation involves integrated interventions in the chain of survival: early recognition, early CPR, early defibrillation, expert and timely advanced life support and hospital care, and multidimensional rehabilitation. Implementation of scientific advances is especially challenging given the unexpected nature of OHCA, the need for time-sensitive interventions, and the substantial collective of stakeholders involved in the chain of survival.Systematic measurement provides the foundation to evaluate performance and guide implementation initiatives. For many systems, telecommunicator CPR and high-performance CPR by emergency professionals are accessible, near-term programs to improve OHCA outcome. Smart technologies that activate, coordinate, and/or coach community "volunteers" to accelerate early CPR and defibrillation have conceptual promise, though robust implementation has been achieved by only a handful of systems. Longer-term strategies may leverage technology to develop a high-fidelity "lifedetector" or engineer and disseminate a specialized consumer defibrillator designed to bridge care until arrival of professional response.

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Evaluation Of CPR Quality Via Smartphone With A Video Livestream – A Study In A Metropolitan Area

Cited by 18 publications

References 16 publications

Live video from bystanders’ smartphones to medical dispatchers in real emergencies

Live video from bystanders’ smartphones to medical dispatchers in real emergencies

Impact of video quality when evaluating video-assisted cardiopulmonary resuscitation: a randomized, controlled simulation trial

Out of hospital cardiac arrest: Past, present, and future

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