Effect of Instituting Upper Limits for Chest Compression Depth for Laypersons at Six-months After Chest Compression-Only Training: A Randomized Controlled Simulation Study
Context/ research question: Chest compression quality plays a major role in patient outcomes after cardiac arrest. The Japanese cardiopulmonary resuscitation (JRC) guidelines 2015 indicatesthat chest compression depth should be approximately 5 cm but not more than 6 cm. However, the upper limit of c...
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| Language: | English |
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Aperio
2020-12-01
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| Series: | International Journal of First Aid Education |
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| Online Access: | https://firstaidjournal.org/article/id/2325/ |
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| description | Context/ research question: Chest compression quality plays a major role in patient outcomes after cardiac arrest. The Japanese cardiopulmonary resuscitation (JRC) guidelines 2015 indicatesthat chest compression depth should be approximately 5 cm but not more than 6 cm. However, the upper limit of chest compression depth might be a barrier to the delivery of adequate chest compressions by laypersons. We hypothesized that laypersons may be able to perform chest compressions (approximately 5 cm) as per the JRC guidelines, without setting an upper limit for chest compression depth.Methods: Participants were randomly assigned to either the “unlimited group” (no recommendation regarding the upper limit of compression depth) or the “limited group” (“push to approximately 5 cm, don’t push over 6 cm”) and stratified according to sex using permuted blocks. All participants completed a 15-min chest compression training session, and their compression skills were individually evaluated immediately and at 6 months after the training using the Laerdal® PC SkillReporting System at Kyoto University. The primary outcome was the median compression depth during the 2-min test period 6 months after the training.Results: Seventy-two participants were enrolled; 33 participants in each group completed the study. The unlimited group performed significantly deeper chest compressions (>60 mm) immediately after the training than the limited group; however, there was no significant difference 6 months after training. Although not significant, the number of compressions with the recommended depth (49–59 mm) was higher in the limited group.Importance: These results suggest that simplified instructions that do not mention the upper limit ofcompression depth may help people perform deeper chest compressions; however, there are concerns about the risks associated with too deep compressions. Considering the situation of out-of-hospital cardiac arrest in Japan, studies focusing on compression depths in another aged people should be considered. |
| format | Article |
| id | doaj-art-df162b6ae40d4afb8d0cf2fd3a24c61c |
| institution | Kabale University |
| issn | 2514-7153 |
| language | English |
| publishDate | 2020-12-01 |
| publisher | Aperio |
| record_format | Article |
| series | International Journal of First Aid Education |
| spelling | doaj-art-df162b6ae40d4afb8d0cf2fd3a24c61c2025-01-31T16:29:04ZengAperioInternational Journal of First Aid Education2514-71532020-12-013210.25894/ijfae.3.2.5Effect of Instituting Upper Limits for Chest Compression Depth for Laypersons at Six-months After Chest Compression-Only Training: A Randomized Controlled Simulation StudyContext/ research question: Chest compression quality plays a major role in patient outcomes after cardiac arrest. The Japanese cardiopulmonary resuscitation (JRC) guidelines 2015 indicatesthat chest compression depth should be approximately 5 cm but not more than 6 cm. However, the upper limit of chest compression depth might be a barrier to the delivery of adequate chest compressions by laypersons. We hypothesized that laypersons may be able to perform chest compressions (approximately 5 cm) as per the JRC guidelines, without setting an upper limit for chest compression depth.Methods: Participants were randomly assigned to either the “unlimited group” (no recommendation regarding the upper limit of compression depth) or the “limited group” (“push to approximately 5 cm, don’t push over 6 cm”) and stratified according to sex using permuted blocks. All participants completed a 15-min chest compression training session, and their compression skills were individually evaluated immediately and at 6 months after the training using the Laerdal® PC SkillReporting System at Kyoto University. The primary outcome was the median compression depth during the 2-min test period 6 months after the training.Results: Seventy-two participants were enrolled; 33 participants in each group completed the study. The unlimited group performed significantly deeper chest compressions (>60 mm) immediately after the training than the limited group; however, there was no significant difference 6 months after training. Although not significant, the number of compressions with the recommended depth (49–59 mm) was higher in the limited group.Importance: These results suggest that simplified instructions that do not mention the upper limit ofcompression depth may help people perform deeper chest compressions; however, there are concerns about the risks associated with too deep compressions. Considering the situation of out-of-hospital cardiac arrest in Japan, studies focusing on compression depths in another aged people should be considered.https://firstaidjournal.org/article/id/2325/CPRchest compressionslaypersontrainingchest compression depthrisks |
| spellingShingle | Effect of Instituting Upper Limits for Chest Compression Depth for Laypersons at Six-months After Chest Compression-Only Training: A Randomized Controlled Simulation Study International Journal of First Aid Education CPR chest compressions layperson training chest compression depth risks |
| title | Effect of Instituting Upper Limits for Chest Compression Depth for Laypersons at Six-months After Chest Compression-Only Training: A Randomized Controlled Simulation Study |
| title_full | Effect of Instituting Upper Limits for Chest Compression Depth for Laypersons at Six-months After Chest Compression-Only Training: A Randomized Controlled Simulation Study |
| title_fullStr | Effect of Instituting Upper Limits for Chest Compression Depth for Laypersons at Six-months After Chest Compression-Only Training: A Randomized Controlled Simulation Study |
| title_full_unstemmed | Effect of Instituting Upper Limits for Chest Compression Depth for Laypersons at Six-months After Chest Compression-Only Training: A Randomized Controlled Simulation Study |
| title_short | Effect of Instituting Upper Limits for Chest Compression Depth for Laypersons at Six-months After Chest Compression-Only Training: A Randomized Controlled Simulation Study |
| title_sort | effect of instituting upper limits for chest compression depth for laypersons at six months after chest compression only training a randomized controlled simulation study |
| topic | CPR chest compressions layperson training chest compression depth risks |
| url | https://firstaidjournal.org/article/id/2325/ |