Abstract 128: More Effective Chest Compression and Less Rescuer Fatigue in Cardiopulmonary Resuscitation with Leg-Foot Compression with a Footstool
Background: Conventional hands-on chest compression in cardiopulmonary resuscitation (CPR) is often inadequate because of rescuer fatigue. This study aimed to investigate the potential of a novel method of CPR by leg-foot compression with a footstool in terms of the efficacy in chest compression and rescuer fatigue.
Methods: We prospectively enrolled 21 medical workers competent in basic life support, and measured their height, weight, body surface area, and sole size. They performed CPR to a manikin for 2 minutes by conventional hands-on compression (HO), leg-foot compression (LF1), and leg-foot compression with a footstool (LF2). We analyzed the compression depth in the manikin, changes in the rescuer’s vital signs, and the modified Borg scale scores after the trials.
Results: The prevalence of compression depth equal or ≧ 5 cm was larger in LF2 (median, inter-quartile range: 93%, 81-100%) than in HO (9%, 0-57%; p < 0.01) and LF1 (28%, 11-47%; p < 0.01). The increase in heart rate and modified Borg scale scores after the trials were lowest in LF2 (49 ± 18 beats/min and 5 [4-7] in HO, 46 ± 18 beats/min and 6 [5-7] in LF1, and 32 ± 11 beats/min and 2 [1-3] in LF2, respectively, p < 0.01). The increases in heart rate in HO and LF1 negatively correlated with the rescuer’s height, body weight, body surface area and sole size (p < 0.05). Furthermore, the modified Borg scale score was negatively associated with body weight in HO and sole size in LF1 (p < 0.05), whereas no correlations were observed between the increase in heart rate and modified Borg scale scores, and any elements of body size in LF2.
Conclusions: Leg-foot compression with a footstool may improve the quality of CPR, as it allows a more effective chest compression and reduces rescuer fatigue regardless of their body size.
Author Disclosures: T. Saitoh: None. M. Okada: None. H. Satoh: None. T. Akai: None. T. Mochizuki: None. H. Hozumi: None. Y. Takahashi: None. M. Nozawa: None. H. Hayashi: None. A. Yoshino: None.
- © 2014 by American Heart Association, Inc.