We have read with great attention the article by Smereka et al. published in “Progress in Medicine Journal”, which raises the issue of the quality of cardiopulmonary resuscitation in infants (1). The paper refers to Smereka et al. novel newborn chest compression method using two thumbs directed at the angle of 90° to the infant’s chest while closing the fingers of both hands (2-4). The published study seemed very interesting and therefore we decided to verify the effectiveness of three methods of chest compressions in infants. We performed a cross-over randomized manikin study in a group of 52 nurses. During the study, we used two methods recommended by both the European Resuscitation Council and the American Heart Association: the two-finger technique and the standard two-thumb technique. Additionally, a novel two-thumb chest compression technique described by Smereka et al. was applied for evaluation (4).