Gugelmin-Almeida Debora, Clark Carol, Rolfe Ursula, Jones Michael, Williams Jonathan
Faculty of Health and Social Sciences, Bournemouth University, Bournemouth Gateway Building, St. Pauls Lane, Bournemouth, BH8 8GP, England.
Department of Anaesthesiology, Main Theatres, Royal Bournemouth and Christchurch Hospitals, Castle Lane East, Bournemouth, BH7 7DW, England.
Resusc Plus. 2021 May 27;7:100141. doi: 10.1016/j.resplu.2021.100141. eCollection 2021 Sep.
The aim of this randomised study was to compare the two-finger technique (TFT) performance using dominant hand (DH) and non-dominant hand (NH) during simulated infant CPR (iCPR).
24 participants performed 3-min iCPR using TFT with DH or NH followed by 3-min iCPR with their other hand. Perceived fatigue was rated using visual analogue scale. Primary outcomes - (i) difference between DH and NH for compression depth (CCD), compression rate (CCR), residual leaning (RL) and duty cycle (DC); (ii) difference between first and last 30 s of iCPR performance with DH and NH. Secondary outcomes - (i) perception of fatigue between DH and NH; (ii) relationship between perception of fatigue and iCPR performance.
No significant difference between DH and NH for any iCPR metric. CCR (DH: P = 0.02; NH: P = 0.004) and DC (DH: P = 0.04; NH: P < 0.001) were significantly different for the last 30 s for DH and NH. Perception of fatigue for NH (76.8 ± 13.4 mm) was significantly higher (t = -3.7, P < 0.001) compared to DH (62.8 ± 12.5 mm). No significant correlation between iCPR metrics and perception of fatigue for DH. However, a significant correlation was found for CCR (r = 0.43; P = 0.04) and RL (r = 0.48; P = 0.02) for NH.
No difference in performance of iCPR with DH versus NH was determined. However, perception of fatigue is higher in NH and was related to CCR and RL, with no effect on quality of performance. Based on our results, individuals performing iCPR can offer similar quality of infant chest compressions regardless of the hand used or the perception of fatigue, under the conditions explored in this study.
本随机研究旨在比较在模拟婴儿心肺复苏（iCPR）过程中，使用优势手（DH）和非优势手（NH）进行两指技术（TFT）操作的表现。
24名参与者先用优势手或非优势手采用两指技术进行3分钟的iCPR，然后再用另一只手进行3分钟的iCPR。使用视觉模拟量表对感知到的疲劳程度进行评分。主要结果——（i）优势手和非优势手在按压深度（CCD）、按压速率（CCR）、残余倾斜度（RL）和占空比（DC）方面的差异；（ii）使用优势手和非优势手进行iCPR操作的前30秒和最后30秒之间的差异。次要结果——（i）优势手和非优势手之间的疲劳感知；（ii）疲劳感知与iCPR操作表现之间的关系。
在任何iCPR指标上，优势手和非优势手之间均无显著差异。优势手和非优势手在最后30秒的CCR（优势手：P = 0.02；非优势手：P = 0.004）和DC（优势手：P = 0.04；非优势手：P < 0.001）存在显著差异。与优势手（62.8±12.5毫米）相比，非优势手的疲劳感知（76.8±13.4毫米）显著更高（t = -3.7，P < 0.001）。优势手的iCPR指标与疲劳感知之间无显著相关性。然而，发现非优势手的CCR（r = 0.43；P = 0.04）和RL（r = 0.48；P = 0.02）存在显著相关性。
未确定使用优势手与非优势手进行iCPR操作的表现存在差异。然而，非优势手的疲劳感知更高，且与CCR和RL相关，对操作质量无影响。基于我们的研究结果，在本研究探索的条件下，进行iCPR的个体无论使用哪只手或疲劳感知如何，都能提供相似质量的婴儿胸部按压。
