TThe purpose of this study was to determine whether or not the rapid response team was screened for computerized screening using vital signs and severity assessment tools measured at three time points 24 hours before the onset of cardiac arrest for pa...
TThe purpose of this study was to determine whether or not the rapid response team was screened for computerized screening using vital signs and severity assessment tools measured at three time points 24 hours before the onset of cardiac arrest for patients who had cardiac arrest while staying in a general ward and performed CPR. This is a retrospective research study to investigate the factors affecting the results of the rapid response team's co
The study subjects were conducted on a total of 143 patients in the general ward of University Hospital C from January 1, 2018 to December 31, 2019. and the research tool was conducted using vital signs measured before cardiac arrest. SAS version 9.4 by measuring the Modified Early Warning Score (MEWS), Cardiac arrest risk triage (CART) score, and Quick sepsis related organ failure assessment (qSOFA) score, which are widely used severity assessment tools for early recognition of patients with signs of exacerbation. frequency and percentage, mean and standard deviation, chi-square, Mixed-Effect Models, and logistic regression analysis were applied.
The results of this study are as follows.
1. As a result of examining 143 patients selected for this study, 92 patients(64.3%) before cardiac arrest occurred according to the computerized screening criteria of the rapid response team. Among them, respiration rate of 25 beats/min or higher (24 patients, 26,1%) and heart rate of 130 beats/min or higher were selected (24 patients, 26,1%), and cardiac arrest occurred in 49 cases due to respiratory system problems or 39(27.3%) cases due to cardiac problems, and there was a statistically significant difference (p<0.05).
2. As for the vital signs of the patients selected by the rapid response team computerized screening, it was confirmed that systolic and diastolic blood pressure decreased 24 hours before the onset of cardiac arrest, the average heart rate and respiration rate, body temperature, and oxygen treatment concentration increased, and the level of consciousness deteriorated.
3. In the Mixed-Effect Models analysis conducted to consider the correlation between each time point before cardiac arrest of repeatedlymeasured vital signs and whether or not computerized screening wasselected, MEWS uses the first-order autogressive model for computational screening. increased when selected, and trough the unstructured model, the CART score increased when the time of cardiacarrest approached or when the computerized screening was selected, and there was an interaction between each time point before cardiac arrest and whether the computerized screening was selected. and through the unstructured model, the qSOFA score decreased when the cardiac arrest time approached or when the computerized screening was selected.
4. For high-risk groups with high severity assessment tool scores, the number of screenings by computerized screening increased statistically significantly (p<0.05) as the cardiac arrest time approached.
5. Of the 92 patients selected by the rapid response team's computerized screening, 28 (30.4%) recovered spontaneous circulation after cardiac arrest and survived for more than 24 hours, and 5 (5.4%) survived and were discharged. There was a significant difference (p<0.05), and when selected by computational screening during logistic regression analysis, survival odds after cardiac arrest decreased (OR=0.236, 95% CI 0.076-0.734, p=0.013).
6. In the univariate logistic regression analysis of the factors affecting the results of computerized screening and cardiac arrest, the odds to be screened for the computerized screening by the rapid response team(OR=2.887, 95% CI 1.077-7.733, p=0.035) and the odds to survive at discharge increased as the department was from internal medicine to surgery (OR=5.899 95% CI 1.810-19.220, p=0.003). As the MEWS increased at each time point before cardiac arrest, the odds to be screened for the rapid response team computerized screening increased significantly, and the odds to survive 24 hours after recovery of spontaneous circulation and to survive at discharge decreased, and were significant only at some time points. As for the CART score, as the value increased, the odds to be screened for the rapid response team computerized screening increased significantly at all time points, and the odds to survive 24 hours after recovery of spontaneous circulation decreased, and were significant only at some time points.As the value of qSOFA Score increased, the odds to be selected for the rapid response team computerized screening increased significantly.
7. In multivariate logistic regression analysis for each factor influencing the results of computerized screening screening and cardiac arrest outcomes, the odds of survival at discharge decreased when the department was a surgical department (OR=0.210, 95% CI 0.043-0.713, p=0.0261) and if MEWS increased 16 to 24 hours before cardiac arrest, the odds of survival for more than 24 hours after recovery of spontaneous circulation increased (OR=1.678, 95% CI 1.04-2.481 p=0.0221).
8. In the case of multivariate logistic regression analysis, when the rapid response team computerized screening was selected as a variable and divided into models for each severity assessment tool, in the case of survival for 24 hours after recovery of spontaneous circulation, the odds of survival decreased when computerized screening was selected(OR=0.372, 95% CI 0.179-0.770, p=0.008), In the case of survival at discharge, survival odds increase when the department is a surgical department (OR=4.744, 95% CI 1.388-16.210, p=0.013), and when computerized screening is selected, survival odds decrease (OR=0.273, 95% CI 0.083-0.902, p=0.033), and the scores of other severity assessment tools and the timing of approaching cardiac arrest showed a tendency to decrease the odds of survival, but it was not statistically significant(p>0.05).
Based on the above study results, it was found that in order for the rapid response team to recognize the signs of exacerbation before cardiac arrest in general ward patients at an early stage, it is necessary to select patients by adding screening using the existing computerized screening and assessment of the high-risk group using the severity assessment tool.
There are vital sign items that are used repeatedly between each severity assessment tool, a separate assessment tool for the patient selection of the improved rapid response team can be prepared to more effectively detect and promptly respond to acute exacerbation patients in the general ward. and further research in this regard is suggested.