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[Predictive value of sequential organ failure assessment on 28-day mortality in patients with post-cardiac arrest
Liangen Lin1, Keyue Pan, Xiaowu Wei
1Department of Emergency, Wenzhou People's Hospital, Wenzhou 325000, Zhejiang, China. Corresponding author: Chen Linglong,
Objective:
To evaluate the predictive value of sequential organ failure assessment (SOFA) for 28-day mortality in patients with post-cardiac arrest syndrome (PCAS).
Methods:
Retrospective analysis of 125 patients with PCAS who were treated in Emergency Intensive Care Unit (EICU) of Wenzhou People's Hospital from July 2016 to July 2021. Clinical data were collected, including age, gender, underlying diseases, acute physiology and chronic health evaluation II (APACHE II), SOFA score on admission to EICU and 28-day mortality. Univariate and multivariate Logistic regression model was constructed to analyze the influencing factors of PCAS patients, which was used to examine the independent correlation between SOFA score and 28-day mortality. Receiver operator characteristic curve (ROC curve) was used to determine the best predictive value of SOFA score and 28-day mortality in PCAS patients.
Results:
Among the 125 PCAS patients, there were 91 males and 34 females with an average age of (58.7±15.1) years old, and 97 died and 28 survived within 28 days. The overall SOFA score ranged from 7 to 15 points, with an average of 10.9 (10.0, 12.0) points. The SOFA score of non-survival group was significantly higher than that of the survival group [points: 11.0 (10.0, 12.0) vs. 9.5 (9.0, 10.0), P < 0.05]. This difference between SOFA score mainly caused by the neurological and cardiovascular systems. After excluding neurological factors, the SOFA score of the non-survival group was still significantly higher than that of the survival group [points: 8.0 (6.0, 8.0) vs. 6.5 (6.0, 7.0), P < 0.05]. SOFA score was found to be an independent risk factor for 28-day mortality in PCAS patients by multifactorial Logistic regression analysis [odds ratio (OR) = 1.97, 95% confidence interval (95%CI) was 1.24-3.04]. The correlation between neurological score and mortality was the highest in subgroups (OR = 3.47, 95%CI was 1.04-11.52). The area under the ROC curve (AUC) predicted by SOFA score was 0.81 (95%CI was 0.73-0.89). When SOFA score cut-off value was 10.5 points (10 or 11 points), the sensitivity and specificity of SOFA score for predicting 28-day mortality in patients with PCAS were 67.0% and 82.1%, respectively.
Conclusions:
The SOFA score is quite accurate in predicting 28-day mortality in patients with PCAS.
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