Impact of pre-arrest glycemic state induced by prolonged fasting on defibrillation requirements: a prospective porcine model of ventricular fibrillation cardiac arrest.

CPR duration was also longer in the 36-h fasting group, with median durations of 344 s (238-784.25) and 191 s (145.75-275), respectively ( P = 0.043).

Sustained ROSC was achieved in 70% and 90% of animals respectively, with no statistically significant difference between groups ( P = 0.582).

In univariable Poisson regression, higher pre-arrest blood glucose was associated with fewer defibrillation shocks required, with an incidence rate ratio of 0.980 (95% CI, 0.968-0.993; P = 0.002).