How does the side of approach impact the force delivered during external chest compression?

Tsou, Jui Yi; Kao, Chia-Lin; Hong, Ming Yuan; Chang, Chih Jan; Su, Fong-Chin; Hsien, Chih

doi:10.1016/j.ajem.2021.03.085

Cited by 4 publications

(8 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The TH method produced more force, whereas the OH method produced a greater caudal–cranial force difference. This causes the force to be distributed more toward the manikin’s head, which might increase the risk of fractures during ECC [ 7 , 18 ]. From the evaluation of the two methods of ECC currently recommended under BLS guidelines, When the providers performed high quality ECCs i.e.…”

Section: Discussionmentioning

confidence: 99%

“…However, to ensure that the pressure distribution is observed under comparable condition and qualities, we provided visual and auditory feedbacks during ECC. Previous studies found real-time feedbacks may serve as a useful adjunct to guide the compression depth for rescuers during ECC [ 7 , 26 ]. Our results may not be generalizable to other ECC providers especially given the small number of participants, mostly female which would make it hard to assess for confounders like gender, size, height.…”

Section: Discussionmentioning

confidence: 99%

“…The maximum pressure, maximum and minimum force over the entire compression area, the cranial area, and the caudal area were calculated. The nipple line of the manikin separated the entire compression area into the cranial and caudal areas [ 7 ].…”

Section: Methodsmentioning

confidence: 99%

“…In pediatric manikin studies, two-handed (TH) external chest compression (ECC) will produce a greater compression depth, [ 6 ] larger intrathoracic pressure, [ 7 ] and less rescuer fatigue, [ 8 ] and insufficient recoil than one-handed (OH) ECC [ 6 ]. Peska et al suggested TH has a better balance control [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

“…ECC is a cyclic movement of compression and decompression. Different forces distribution across the rescuers’ hands were produced according to the different methods of chest compression [ 7 ]. This differences could further affect the performance of CPR.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Biomechanical analysis of force distribution in one-handed and two-handed child chest compression- a randomized crossover observational study

Tsou

Kao

et al. 2022

BMC Emerg Med

Self Cite

View full text Add to dashboard Cite

Background Even force distribution would generate efficient external chest compression (ECC). Little research has been done to compare force distribution between one-hand (OH) and two-handed (TH) during child ECC. Therefore, this study was to investigate force distribution, rescuer perceived fatigue and discomfort/pain when applying OH and TH ECC in children. Methods Crossover manikin study. Thirty-five emergency department registered nurses performed lone rescuer ECC using TH and OH techniques, each for 2 min at a rate of at least 100 compressions/min. A Resusci Junior Basic manikin equipped with a MatScan pressure measurement system was used to collect data. The perceived exertion scale (modified Borg scale) and numerical rating scale (NRS) was applied to evaluate the fatigue and physical pain of delivering chest compressions. Results The maximum compression force (kg) delivered was 56.58 ± 13.67 for TH and 45.12 ± 7.90 for OH ECC (p < 0.001). The maximum-minimum force difference force delivered by TH and OH ECC was 52.24 ± 13.43 and 41.36 ± 7.57, respectively (p < 0.001). The mean caudal force delivered by TH and OH ECC was 29.45 ± 16.70 and 34.03 ± 12.01, respectively (p = 0.198). The mean cranial force delivered by TH and OH ECC was 27.13 ± 11.30 and 11.09 ± 9.72, respectively (p < 0.001). The caudal–cranial pressure difference delivered by TH and OH ECC was 19.14 ± 15.96 and 26.94 ± 14.48, respectively (p = 0.016). The perceived exertion and NRS for OH ECC was higher than that of the TH method (p < 0.001, p = 0.004, respectively). Conclusions The TH method produced greater compression force, had more efficient compression, and delivered a more even force distribution, and produced less fatigue and physical pain in the rescuer than the OH method. Trial registration The Cheng Kung University Institutional Review Board A-ER-103-387. http://nckuhirb.med.ncku.edu.tw/sitemap.php

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%