• Ji Ung Na, Pil Cho Choi, Hyun Jung Lee, Dong Hyuk Shin, Sang Kuk Han, and Jun Hwi Cho.
• Department of Emergency Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea; Department of Emergency Medicine, Graduate School, College of Medicine, Kangwon National University, Chuncheon, Korea.
• Acta Paediatr. 2015 Feb 1;104(2):e70-5.

AimThe two-thumb encircling (TTE) technique often results in suboptimal cardiac compression and does not meet the requirements of current resuscitation guidelines. We compared this technique with the vertical two-thumb (VTT) technique, our novel modification of the TTE technique.MethodsThis was a prospective randomised crossover simulation study of out-of-hospital infant cardiopulmonary resuscitation (CPR). Participants who had completed a basic life support course performed 10 cycles of cardiac compressions on a manikin for each technique.ResultsWe enrolled 36 medical doctors who had applied for a hospital internship in this study. The VTT generated significantly higher pressure than the TTE and the pressure difference ranged from 26.8 to 62.9 mmHg for each cycle, with a mean difference of 43.5 mmHg (95% CI, 37.8-49.2). The difference in pressure showed a tendency to increase with increasing cycles of cardiac compressions. The participants' heart and respiratory rate was higher with the VTT, but they said that it was easier to perform cardiac compressions with this technique.ConclusionThe VTT technique generated more pressure than the TTE technique in a simulated model of infant out-of-hospital CPR. It can provide an alternative compression technique for effective infant CPR, especially for the rescuers with small hands or a weak grip.©2014 Foundation Acta Paediatrica. Published by John Wiley & Sons Ltd.

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