Early prediction cardiac arrest in intensive care units:the value of laboratory indicator trends

<正>The incidence of in-hospital cardiac arrest （IHCA） has increased over the past decade,with more than half occurring in intensive care units （ICUs）.[1]ICU cardiac arrest （ICU-CA）presents unique challenges,with worse outcomes than those in monitored wards,highlighting the need for early detection and intervention.[2]Up to 80%of patients exhibit signs of deterioration hours before IHCA.[3]Although early warning scores based on vital signs are useful,their eff ectiveness in ICUs is limited due to abnormal physiological parameters.[4]Laboratory markers,such as sodium,potassium,and lactate,are predictive of poor outcomes,[5]but static measurements may not capture the patient’s trajectory.Trends in laboratory indicators,such as variability and extremes,may offer better predictive value.[6]This study aimed to evaluate ICU-CA predictive factors,with a focus on vital signs and trends of laboratory indicators.