correlation of immature/total granulocyte ratio with return of spontaneous circulation and early mortality in nontraumatic out-of-hospital cardiac arrest

Objective: aim of this study was to examine immature granulocyte/total granulocyte (ig/tg) ratio for prediction of return of spontaneous circulation (rosc) and early mortality in post cardiac arrest survivors. methods: the study was carried out prospectively between january 2021 and january 2022. non-traumatic out-of-hospital cardiac arrest (ohca), over the age of 18 and non-pregnant were included. patients’ whose ig levels were not studied, with hematological disease and who receiving immunosuppressive therapy were excluded. a palpable pulsation of the main arteries for at least 15 minutes was considered rosc. data were compared between the <4 hour and ≥4 hour survival groups and patients with and without rosc. results: total of 254 ohca patients were included in the study. rosc was achieved in 84 (33.1%) of these patients and 170 (66.9%) patients were died. there were 28 patients (33.3%) with survival of <4 hours and 56 patients (66.7%) with survival of ≥4 hours in patients with rosc. the ig count and ig/tg ratio did not differ significantly between the rosc groups and between the groups separated by survival time (p>0.05).conclusion: we found no significant differences between subgroups defined according to survival duration. similarly, no differences found between ohca patients with and without sustained rosc.