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Article Abstract
Objectives: Our objective is to develop a prediction tool to predict the death after in-hospital cardiac arrest (IHCA).
Design: We conducted a retrospective double-centre observational study of IHCA patients from January 2015 to December 2021. Data including prearrest diagnosis, clinical features of the IHCA and laboratory results after admission were collected and analysed. Logistic regression analysis was used for multivariate analyses to identify the risk factors for death. A nomogram was formulated and internally evaluated by the boot validation and the area under the curve (AUC). Performance of the nomogram was further accessed by Kaplan-Meier survival curves for patients who survived the initial IHCA.
Setting: Intensive care unit, Tongji Hospital, China.
Participants: Adult patients (≥18 years) with IHCA after admission. Pregnant women, patients with 'do not resuscitation' order and patients treated with extracorporeal membrane oxygenation were excluded.
Interventions: None.
Primary And Secondary Outcome Measures: The primary outcome was the death after IHCA.
Results: Patients (n=561) were divided into two groups: non-sustained return of spontaneous circulation (ROSC) group (n=241) and sustained ROSC group (n=320). Significant differences were found in sex (p=0.006), cardiopulmonary resuscitation (CPR) duration (p<0.001), total duration of CPR (p=0.014), rearrest (p<0.001) and length of stay (p=0.004) between two groups. Multivariate analysis identified that rearrest, duration of CPR and length of stay were independently associated with death. The nomogram including these three factors was well validated using boot calibration plot and exhibited excellent discriminative ability (AUC 0.88, 95% CI 0.83 to 0.93). The tertiles of patients in sustained ROSC group stratified by anticipated probability of death revealed significantly different survival rate (p<0.001).
Conclusions: Our proposed nomogram based on these three factors is a simple, robust prediction model to accurately predict the death after IHCA.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10565198 | PMC |
| http://dx.doi.org/10.1136/bmjopen-2023-074214 | DOI Listing |
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