BackgroundIn case of a cardiac arrest, start of cardiopulmonary resuscitation by a bystander before the arrival of the emergency personnel increases the probability of survival. However, the steps of high-quality resuscitation are not known by every bystander or might be forgotten in this complex and time-critical situation. Mobile phone apps offering real-time step-by-step instructions might be a valuable source of information.ObjectiveThe aim of this study was to examine mobile phone apps offering real-time instructions in German or English in case of a cardiac arrest, to evaluate their adherence to current resuscitation guidelines, and to test their usability.MethodsOur 3-step approach combines a systematic review of currently available apps guiding a medical layperson through a resuscitation situation, an adherence testing to medical guidelines, and a usability evaluation of the determined apps. The systematic review followed an adapted preferred reporting items for systematic reviews and meta-analyses flow diagram, the guideline adherence was tested by applying a conformity checklist, and the usability was evaluated by a group of mobile phone frequent users and emergency physicians with the system usability scale (SUS) tool.ResultsThe structured search in Google Play Store and Apple App Store resulted in 3890 hits. After removing redundant ones, 2640 hits were checked for fulfilling the inclusion criteria. As a result, 34 apps meeting all inclusion criteria were identified. These included apps were analyzed to determine medical accuracy as defined by the European Resuscitation Council’s guidelines. Only 5 out of 34 apps (15%, 5/34) fulfilled all criteria chosen to determine guideline adherence. All other apps provided no or wrong information on at least one relevant topic. The usability of 3 apps was evaluated by 10 mobile phone frequent users and 9 emergency physicians. Of these 3 apps, solely the app “HELP Notfall” (median=87.5) was ranked with an SUS score above the published average of 68. This app was rated significantly superior to “HAMBURG SCHOCKT” (median=55; asymptotic Wilcoxon test: z=−3.63, P<.01, n=19) and “Mein DRK” (median=32.5; asymptotic Wilcoxon test: z=−3.83, P<.01, n=19).ConclusionsImplementing a systematic quality control for health-related apps should be enforced to ensure that all products provide medically accurate content and sufficient usability in complex situations. This is of exceptional importance for apps dealing with the treatment of life-threatening events such as cardiac arrest.

Background Bystander-initiated resuscitation is essential for surviving out-of-hospital cardiac arrest. Smartphone apps can provide real-time guidance for medical laypersons in these situations. Are these apps a beneficial addition to traditional resuscitation training? Methods In this controlled trial, we assessed the impact of app use on the quality of resuscitation (hands-off time, assessment of the patient’s condition, quality of chest compression, body and arm positioning). Pupils who have previously undergone a standardised resuscitation training, encountered a simulated cardiac arrest either (i) without an app (control group); (ii) with facultative app usage; or (iii) with mandatory app usage. Measurements were compared using generalised linear regression. Results 200 pupils attended this study with 74 pupils in control group, 65 in facultative group and 61 in mandatory group. Participants who had to use the app significantly delayed the check for breathing, call for help, and first compression, leading to longer total hands-off time. Hands-off time during chest compression did not differ significantly. The percentage of correct compression rate and correct compression depth was significantly higher when app use was mandatory. Assessment of the patient’s condition, and body and arm positioning did not differ. Conclusions Smartphone apps offering real-time guidance in resuscitation can improve the quality of chest compression but may also delay the start of resuscitation. Provided that the app gives easy-to-implement, guideline-compliant instructions and that the user is familiar with its operation, we recommend smartphone-guidance as an additional tool to hands-on CPR-training to increase the prevalence and quality of bystander-initiated CPR.

Background: In case of a cardiac arrest the start of cardiopulmonary resuscitation by a bystander before the arrival of the emergency personnel, increases the probability of survival. However, the steps of high-quality resuscitation are not known by every bystander or might be forgotten in this complex and time-critical situation. Smartphone applications offering real-time step-by-step instructions might be a valuable source of information.

Hintergrund Die COVID-19(„coronavirus disease 2019“)-Pandemie wirkt sich auf die psychische Gesundheit und das berufliche Verhalten von Chirurgen und Chirurginnen und Anästhesisten und Anästhesistinnen aus und scheint einen Einfluss auf die Substanzabhängigkeit zu haben. Fragestellung Welche Gründe gibt es für das Auftreten einer Substanzabhängigkeit und einem Burnout bei Chirurgen und Chirurginnen und Anästhesisten und Anästhesistinnen zeitlos und während der COVID-19-Pandemie und welche Verbesserungsmaßnahmen könnten im klinischen Alltag helfen? Material und Methoden Es wurde eine Literaturrecherche in Form einer systematischen Übersicht („systematic review“) zu Studien und Übersichtsarbeiten durchgeführt, die für das Thema relevant sind. Ergebnisse Im Laufe der Jahre hat sich gezeigt, dass Chirurgen bzw. Chirurginnen und Anästhesisten bzw. Anästhesistinnen aufgrund ihres direkten Zugangs zu Medikamenten in der Klinik und der arbeitsbezogenen Stressbelastung zur Drogenabhängigkeit neigen. Insbesondere Chirurgen und Chirurginnen und Anästhesisten und Anästhesistinnen schienen eine erhöhte Neigung zur Suchterkrankungen und ein erhöhtes Burnout-Risiko in der Pandemie vorzuweisen. Schlussfolgerungen Präventive Maßnahmen zugunsten besserer Arbeitsbedingungen in der Chirurgie und Anästhesie und eine bessere Drogenkontrolle (nicht nur wegen der Ausgabe, sondern auch wegen der richtigen Drogentests) sowie mehr Therapie- und Wiedereingliederungsprogramme unter psychiatrischer Begleitung und in Zusammenarbeit mit einem multidisziplinären Team sind sinnvoll.

Background: Bystander initiated resuscitation is essential. To encourage medical laypersons to perform resuscitation smartphone apps providing real-time guidance were invented. Are these apps a beneficial addition to traditional resuscitation training?Methods: In a randomized controlled trial impact of app usage on quality of resuscitation in a standardised simulated cardiac arrest scenario was assessed. In a previous study the app “HELP Notfall” was selected for this purpose. Six weeks after a standardised resuscitation training pupils encountered a simulated cardiac arrest (i) without app (control group); (ii) with facultative app usage (facultative group); (iii) with mandatory app usage (mandatory group).Results: 200 pupils attended this study with 74 pupils (37%) in control group, 65 (32,5%) in facultative group and 61 (30,5%) in mandatory group. Participants using the app in mandatory group had a significantly higher percentage of chest compressions with the correct compression rate (65.4% vs. 43.8%; p<0.01) and with correct compression depth (47.6% vs. 24.4%; p=0.001) than pupils of the control group. Participants of the mandatory group had a significant delay compared with control group regarding time until check for breathing (23 sec. vs. 12 sec., p<0.001), call for help (35 sec. vs. 20 sec., p<0.001) and first compression (68 sec. vs. 29 sec., p<0.001). Hands-off-time during compression tended to be shorter in mandatory group (0.5 sec.) compared with control group (1.5 sec.), (p=0.36).Conclusions: Smartphone apps offering real-time guidance in resuscitation are of mixed benefits. An improved quality of chest compression is countered by a delayed start of chest compressions. Both aspects have to be considered before recommending smartphone apps to support laypersons in bystander resuscitation as an addition to traditional hands-on training.