The Effect of Operator Position on the Quality of Chest Compressions Delivered in a Simulated Ambulance

Mullin, Scott A.; Lydon, Sinéad; O’Connor, Paul

doi:10.1017/s1049023x19005193

Cited by 4 publications

(4 citation statements)

References 20 publications

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“…Third, previous studies have shown that the height at which the rescuer performs chest compressions signi cantly impacts CPR e ciency and rescuer fatigue. 9,25 In the present study, the axillary line height of the manikin uniformly placed on the dental chair was approximately 55 cm, which did not correspond to the appropriate position of each participant and may have affected e ciency and fatigue. Finally, this study did not use objective indices such as electrocardiogram, electromyography, or oxygen saturation to measure participants' physical fatigue, but only a subjective RPE scale fatigue assessment to ascertain subjects' sense of fatigue.…”

Section: Limitationsmentioning

confidence: 71%

The impact of the dental chair stabilization method on chest compressions

Hitosugi

Hirokawa

Hano

et al. 2022

Preprint

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Background To evaluate, how the influence of different with and without a support stool, impacts chest compressions on the dental chair. Methods Experiments were conducted on CPR training manikin on a dental chair. A stool was placed under the backrest of a dental chair to stabilize it. Chest compressions were performed for 5 minutes with or without a stool. Six values in chest compressions and the degree of fatigue were measured. Results According to the analysis of the quality of chest compressions without a stool or with a stool under the dental chair. The mean chest compression depth of With (57.29 ± 6.24mm) was significantly deeper than that of Without (53.86 ± 8.48 mm; p < 0.001). The mean chest compression rate and total chest compressions of With were significantly higher than that of Without. QCPR score of With (94.28 ± 10.57) was significantly higher than that of Without (72.0 ± 46.66; p < 0.001). The rating of perceived exertion of With (6.75 ± 1.20) was significantly lower than that of Without (8.75 ± 0.66; p < 0.001). Only the chest compression fraction and the chest compression rebound rate does not reach a significant difference. Conclusions The use of a support stool improved the quality of chest compressions on the dental chair and reduced rescuer fatigue. To perform effective CPR on a dental chair, it is important to stabilize the chair against chest compressions. Clinical relevance: Effective chest compressions could be performed in dental chairs by using a stool when cardiac arrest occurs during dental treatments.

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Section: Limitationsmentioning

confidence: 71%

The impact of the dental chair stabilization method on chest compressions

Hitosugi

Hirokawa

Hano

et al. 2022

Preprint

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“…The participants also found chest compressions to be more effective when they were standing than when they were sitting. Thus, there is a strong correlation between the position of the rescuer in relation to the patient and the way the force is applied during CPR 15 .…”

Section: Discussionmentioning

confidence: 99%

“…Second, this study was conducted in a simulated stationary ambulance in a laboratory setting, using a stretcher bed exclusively for the ambulance and a mannequin to test chest compressions by adjusting the bed height. The participants were not challenged by the acceleration, deceleration, and gravity inherent to moving ambulances 15 , 21 . Third, this study did not use objective electromyography (EMG) to measure the muscle fatigue of the participants; only the subjective RPE scale was used to understand the participants' perception of fatigue as an assessment of fatigue.…”

Section: Limitationsmentioning

confidence: 99%

Effect of Ambulance Stretcher Bed Height Adjustment on CPR Quality and Rescuer Fatigue in a Laboratory Environment

Ho¹,

Hsu²,

Li³

et al. 2021

Int. J. Med. Sci.

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Background: The quality of cardiopulmonary resuscitation (CPR) is closely related to the survival rate of a patient, and it is crucial to maintain the quality of CPR during the ambulance journey to the receiving hospital. The purpose of this study was to investigate the effects of different stretcher bed heights on operator CPR quality. Methods: In this randomized crossover trial, 16 male emergency medical technicians-paramedics (EMT-Ps) performed continuous chest compressions on a hemimorphic mannequin for 5 minutes, alternating between the current height of the stretcher bed on the ambulance (38 ± 1 cm) (S-38) and the height of the participant's midpoint of the patella (S-knee), where the stretcher bed surface is. Results: According to the analysis of the quality of CPR exercises with two different stretcher bed heights at 5 minutes of continuous chest compression, the mean chest compression depth (CCD) of the S-38 position (53.81 ± 1.91 cm) was significantly lower than that of the S-knee (55.12 ± 2.03 cm; p < 0.001). The mean chest compression rate (CCR) of the S-38 position (111.44 ± 3.44 beats/min) was significantly higher than that of the S-knee (109.63 ± 4.46 beats/min; p = 0.027). The mean of total chest compressions (TCC) of the S-38 position (557.44 ± 16.81 times) was significantly higher than that of the S-knee (548.24 ± 19.40 times; p = 0.029). The rating of perceived exertion (RPE) of the S-38 position was significantly higher than that of the S-knee (12.75 ± 1.91 %; p = 0.015). Only the chest compression rebound rate (CCRR) (S-38: 97.56 ± 4.63 % vs. S-knee: 98.31 ± 1.89 %, p = 0.401) and the chest compression fraction (CCF) (S-38: 98.44 ± 0.81 % vs. S-knee: 98.44 ± 0.96 %, p = 1.000) did not reach a significant difference. Conclusion: When a resuscitator is performing chest compressions in a standing position in an ambulance, the excessive downward leaning of the resuscitator's upper body affects CPR quality and increases fatigue. This study has verified that setting the stretcher bed of the ambulance at the knee height of the EMTs provides better CPR quality and lower fatigue.

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“…Giving sitting position compression is safer for rescuers but reduces the quality of chest compressions given to the patient. Meanwhile, the standing position has a more optimal quality of chest compression to the patient but risks endangering the helper (Mullin et al, 2019).…”

Section: Amount Of Compressionmentioning

confidence: 99%

The Impact of CPR Position (Kneeling, Footstool and Standing Beside Bed) on Cardiopulmonary Resuscitation Quality: A Literature Review

Mirwanti

2020

PACNJ

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Background: Cardiopulmonary Resuscitation (CPR) is one of the measures to deal with emergency cardiac arrest (cardiac arrest) where the heart organ loses its function suddenly. Hence it is unable to pump blood throughout the body. CPR consists of aid in circulation (compression) and breathing (ventilation). AHA has determined guidelines for implementing CPR, especially an essential point in CPR, namely chest compression. The standing position is fundamental in the implementation of CPR, but kneeling and footstool positions can be carried out during CPR implementation. This paper aims to show the impact of standing, kneeling, and footstool positions on CPR quality.Method: The method used is by searching journals in Science Direct, PubMed, and Google Scholar. The keywords used are CPR, Kneeling Position, Footstool, standing beside the bed Obtained eight selected journals according to the topic, then analyzed.Results: Based on the search result, eight articles meet the criteria. The literature review results showed three positions that can be chosen when conducting CPR: standing, kneeling, and footstool. Those positions could give impact toward helper: pain level and exhaustion degree, and quality of CPR: compression strength, depth of compression, amount of compression, chest recoil, elbow movement, and movement in the lower back.Conclusion: Three CPR positions can be done, including standing beside the bed, kneeling, and standing on stepstool footing. Each position gives impacts both to helper condition and CPR quality. Researchers recommend standing on stepstool footing due to it provides the best effect on CPR quality.

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The Effect of Operator Position on the Quality of Chest Compressions Delivered in a Simulated Ambulance

Cited by 4 publications

References 20 publications

The impact of the dental chair stabilization method on chest compressions

The impact of the dental chair stabilization method on chest compressions

Effect of Ambulance Stretcher Bed Height Adjustment on CPR Quality and Rescuer Fatigue in a Laboratory Environment

The Impact of CPR Position (Kneeling, Footstool and Standing Beside Bed) on Cardiopulmonary Resuscitation Quality: A Literature Review

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