The study looked at CPR in a hospital setting to understand its effectiveness. They analyzed 71 cases of in-hospital CPR over 8 months. Of these cases, 46 were true cardiac arrests. About 59% of these patients had their heartbeat restored by CPR, and 15% were discharged from the hospital. Most initial heart rhythms during cardiac arrest were asystole or PEA, with higher survival rates in these cases. Prompt activation of emergency response systems yielded better outcomes for patients with asystole or PEA. This suggests that acting quickly and effectively in hospitals during cardiac arrests can improve survival chances.