Research Article
A Retrospective Study: Quick Scoring of Symptoms to Estimate the Risk of Cardiac Arrest in the Emergency Department
Table 1
Variables collected from the electronic health records of Peking University Third Hospital.
| Patient variables | Age | Gender | Hospitalization information such as time of first medical contact and visiting pattern | Underlying diseases |
| Arrest variables | Vital signs before CA, including temperature, heart rate, blood pressure, and blood oxygen saturation | Laboratory tests such as routine blood test, coagulation function, and inflammatory factors | Exact time and location of the attack | Initial ECG rhythms (shockable rhythm and nonshockable rhythm) | Witness or bystander CPR | Rescue measures, including CPR, defibrillation, auxiliary ventilation, and resuscitation drugs |
| Outcome variables | Admission survival, ROSC, and survival to discharge | Neurological outcome at discharge | Presumed etiology of CA or preliminary diagnosis of non-CA patients |
| Prodromal symptoms | Dyspnea, chest pain, abdominal pain, backache, syncope, cold sweat, and palpitation |
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