Purpose: Little is known about long-term survival after In-Hospital Cardiac Arrest (IHCA). The purpose of this study is to report the one-year survival of patients after IHCA and to identify predicting factors.
Methods: a single-center retrospective chart study of all adult in-hospital CPR attempts conducted between January 2003 and February 2014 in a tertiary teaching hospital in Amsterdam (NL). The demographic and clinical variables of patients were obtained at 24 hours pre-arrest, during CPR and post-CPR. All patients were tracked one year after discharge from hospital.
Results: CPR was performed for IHCA on 417 patients during the study period. Return of spontaneous circulation (ROSC) was achieved in 283 (68%) patients, 234 were admitted to ICU. The survival rate of patients who were admitted to ICU after IHCA was 38% (89/234) at hospital discharge and 26% (61/234) at one year. Overall, 95 (23%) patients survived one year after discharge. Univariate analysis showed numerous variables are associated with one-year survival, for example comorbidity index and time to ROSC. 
Discussion: One-year survival of patients who were admitted to the ICU after IHCA was 26%. Survival of this group was associated with patient and pre-arrest, CPR characteristics and severity of diseases at ICU admission reflected by clinical scores.



05 / One-year mortality of patients admitted to the intensive care unit after in-hospital cardiac arrest: a retrospective pilot study