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

Abstract

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.

Cardiopulmonary Resuscitation Capacity Building Training for High School Students in Martapura, Banjar Regency

“…Early cardiopulmonary resuscitation (CPR), including bystander CPR, is significantly associated with better rates of survival to discharge from out-of-hospital cardiac arrest (OHCA). It is also a crucial element in the chain of survival at OHCA (Fazel et al, 2022;Gram et al, 2021;Jellestad et al, 2021;Plata et al, 2021). Therefore, educating large numbers of people remains a priority for the American Heart Association (AHA) and Red Cross/Crescent organizations around the world cardiac arrest in hospital (OHCA) is a serious public health problem worldwide.…”

The Triple-S framework: ensuring scalable, sustainable, and serviceable practices in educational technology

“…In some cases, changes in resolution do not have an impact on educational outcomes (Plata et al, 2021). However, in fields such as science, low-resolution videos make viewing important features, text, labels, or facets, where clarity and sharpness are required, difficult (Plata et al, 2021).…”

“…In some cases, changes in resolution do not have an impact on educational outcomes (Plata et al, 2021). However, in fields such as science, low-resolution videos make viewing important features, text, labels, or facets, where clarity and sharpness are required, difficult (Plata et al, 2021). Using technologies and software to upscale older videos can introduce artifacts and errors (Akramullah, 2014), which can be detrimental to learning if fine details are important.…”

“…However, a growing problem where older videos suffer from being recorded at a low resolution, making them blurry and unclear on modern screens. In some cases, changes in resolution do not have an impact on educational outcomes (Plata et al, 2021 ). However, in fields such as science, low-resolution videos make viewing important features, text, labels, or facets, where clarity and sharpness are required, difficult (Plata et al, 2021 ).…”