Fig. (3) Boxplots with gene expression expressed as 2-ddCT of MMP2, MMP9, ICAM-1 and TNF╬▒ after 60s (group 2) and 90s (group 3) of ventilation prior to chest compressions compared to the present resuscitation guidelines of 30s of ventilation and 3:1. The results are presented as median (IQR).