Using an audiovisual feedback device improves cardiopulmonary resuscitation performance during day and night – a randomized controlled simulation study

Abstract Background Survival of in-hospital-cardiac-arrests is lower when they occur at night and at weekends than when they occur during the day. Despite numerous studies, there is little evidence regarding the cardiopulmonary resuscitation quality at night and the influence of a feedback device de...

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Main Authors: Melanie Preuss, Rainer Röhrig, Christian Hübel, Clara Vos, Jenny Unterkofler, Jörg Christian Brokmann, Klaus Willmes, Christopher Plata
Format: Article
Language:English
Published: BMC 2025-06-01
Series:BMC Emergency Medicine
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Online Access:https://doi.org/10.1186/s12873-025-01249-1
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author Melanie Preuss
Rainer Röhrig
Christian Hübel
Clara Vos
Jenny Unterkofler
Jörg Christian Brokmann
Klaus Willmes
Christopher Plata
author_facet Melanie Preuss
Rainer Röhrig
Christian Hübel
Clara Vos
Jenny Unterkofler
Jörg Christian Brokmann
Klaus Willmes
Christopher Plata
author_sort Melanie Preuss
collection DOAJ
description Abstract Background Survival of in-hospital-cardiac-arrests is lower when they occur at night and at weekends than when they occur during the day. Despite numerous studies, there is little evidence regarding the cardiopulmonary resuscitation quality at night and the influence of a feedback device depending on time of day. The present study investigates the differences between chest compressions at night and during the day, with and without the use of a feedback device. Methods The study was approved by the local Ethics Committee and registered in the German Clinical Trials Register on 22nd of February 2022 (DRKS00027309) prior to inclusion of the first participant. 158 medical professionals were randomized into one of two groups: “no feedback” and “feedback”-group. In both groups, participants carried out three two-minute intervals of cardiopulmonary resuscitation on a manikin at day and at night. Members of the “feedback”-group received guidance by a feedback device. Primary endpoint was the mean compression depth at two time-intervals at the beginning (t1 = 30–60 s) and the end (t2 = 480–540 s) of the experience at night. Secondary endpoints included mean compression depth, adequate compression depth (%), compression rate and effective compressions (%). Results At night, mean compression depth was significantly higher in the “feedback”-group at t1 (47.7 ± 7.9 mm, 95% CI [45.6–49.8] vs 42.9 ± 11.0 mm, 95% CI [40.8–45.0]) and t2 (46.2 ± 7.9 mm, 95% CI [44.0–48.4] vs 39.6 ± 11.6 mm, 95% CI [37.3–41.8]). There was no significant difference in mean compression depth between day and night in the “no feedback”-group (41.4 ± 10.8 mm, 95% CI [39.3–43.5] vs 42.2 ± 10.8 mm, 95% CI [40.1–44.3]) nor in the “feedback-group” (47.4 ± 7.6 mm, 95% CI [45.3–49.4] vs 47.4 ± 7.5 mm; 95% CI [45.4–49.5]). Conclusion The use of a real-time audiovisual feedback significantly improved compression depth during the day and night in a manikin-based simulation study with medical professionals.
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spelling doaj-art-acd93cb5d992484d84fcf2152f6e5f1f2025-08-20T03:42:26ZengBMCBMC Emergency Medicine1471-227X2025-06-012511910.1186/s12873-025-01249-1Using an audiovisual feedback device improves cardiopulmonary resuscitation performance during day and night – a randomized controlled simulation studyMelanie Preuss0Rainer Röhrig1Christian Hübel2Clara Vos3Jenny Unterkofler4Jörg Christian Brokmann5Klaus Willmes6Christopher Plata7Center for Acute and Emergency Medicine, University Hospital, RWTH Aachen UniversityInstitute for Medical Informatics, University Hospital, RWTH Aachen UniversityCenter for Acute and Emergency Medicine, University Hospital, RWTH Aachen UniversityCenter for Acute and Emergency Medicine, University Hospital, RWTH Aachen UniversityCenter for Acute and Emergency Medicine, University Hospital, RWTH Aachen UniversityCenter for Acute and Emergency Medicine, University Hospital, RWTH Aachen UniversityDepartment of Neurology, University Hospital, RWTH Aachen UniversityCenter for Acute and Emergency Medicine, University Hospital, RWTH Aachen UniversityAbstract Background Survival of in-hospital-cardiac-arrests is lower when they occur at night and at weekends than when they occur during the day. Despite numerous studies, there is little evidence regarding the cardiopulmonary resuscitation quality at night and the influence of a feedback device depending on time of day. The present study investigates the differences between chest compressions at night and during the day, with and without the use of a feedback device. Methods The study was approved by the local Ethics Committee and registered in the German Clinical Trials Register on 22nd of February 2022 (DRKS00027309) prior to inclusion of the first participant. 158 medical professionals were randomized into one of two groups: “no feedback” and “feedback”-group. In both groups, participants carried out three two-minute intervals of cardiopulmonary resuscitation on a manikin at day and at night. Members of the “feedback”-group received guidance by a feedback device. Primary endpoint was the mean compression depth at two time-intervals at the beginning (t1 = 30–60 s) and the end (t2 = 480–540 s) of the experience at night. Secondary endpoints included mean compression depth, adequate compression depth (%), compression rate and effective compressions (%). Results At night, mean compression depth was significantly higher in the “feedback”-group at t1 (47.7 ± 7.9 mm, 95% CI [45.6–49.8] vs 42.9 ± 11.0 mm, 95% CI [40.8–45.0]) and t2 (46.2 ± 7.9 mm, 95% CI [44.0–48.4] vs 39.6 ± 11.6 mm, 95% CI [37.3–41.8]). There was no significant difference in mean compression depth between day and night in the “no feedback”-group (41.4 ± 10.8 mm, 95% CI [39.3–43.5] vs 42.2 ± 10.8 mm, 95% CI [40.1–44.3]) nor in the “feedback-group” (47.4 ± 7.6 mm, 95% CI [45.3–49.4] vs 47.4 ± 7.5 mm; 95% CI [45.4–49.5]). Conclusion The use of a real-time audiovisual feedback significantly improved compression depth during the day and night in a manikin-based simulation study with medical professionals.https://doi.org/10.1186/s12873-025-01249-1CPRBLSFeedbackT-CPRIn-hospital-cardiac-arrestSimulation
spellingShingle Melanie Preuss
Rainer Röhrig
Christian Hübel
Clara Vos
Jenny Unterkofler
Jörg Christian Brokmann
Klaus Willmes
Christopher Plata
Using an audiovisual feedback device improves cardiopulmonary resuscitation performance during day and night – a randomized controlled simulation study
BMC Emergency Medicine
CPR
BLS
Feedback
T-CPR
In-hospital-cardiac-arrest
Simulation
title Using an audiovisual feedback device improves cardiopulmonary resuscitation performance during day and night – a randomized controlled simulation study
title_full Using an audiovisual feedback device improves cardiopulmonary resuscitation performance during day and night – a randomized controlled simulation study
title_fullStr Using an audiovisual feedback device improves cardiopulmonary resuscitation performance during day and night – a randomized controlled simulation study
title_full_unstemmed Using an audiovisual feedback device improves cardiopulmonary resuscitation performance during day and night – a randomized controlled simulation study
title_short Using an audiovisual feedback device improves cardiopulmonary resuscitation performance during day and night – a randomized controlled simulation study
title_sort using an audiovisual feedback device improves cardiopulmonary resuscitation performance during day and night a randomized controlled simulation study
topic CPR
BLS
Feedback
T-CPR
In-hospital-cardiac-arrest
Simulation
url https://doi.org/10.1186/s12873-025-01249-1
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