The Impact Of The Prevention And Control COVID-19 Epidemic On The Diagnosis And Treatment Of STEMI Patients Undergoing Emergency PCI In Chest Pain Centers

Objective: This research was conducted to analyze whether the systems and measures developed in our hospital during the Corona Virus Disease 2019(COVID-19)had an impact on the treatment of patients with ST-segment Elevation Myocardial Infarction(STEMI)undergoing emergency Percutaneous Coronary Intervention(PCI)in our chest pain center,and whether these systems and measures led to substandard time points of the chest pain center,and whether they had an impact on length of stay,medical consumption,complications,and other indicators.The results were conducive to guide us to improve the chest pain center construction plan.Method:Data were collected on patients with ST-segment elevation myocardial infarction who visited our hospital for direct PCI from January 2019 to December 2020.The collected case data were divided into pre-epidemic group(January 2019 to December 2019,n=222)and epidemic group(January 2020 to December 2020,n=190),while the pre-epidemic group was divided into group A(self-coming to the hospital,n=131)and group B(120 admission,n=91),and the epidemic group was divided into group C(self-coming to the hospital,n=91)and group D(120 admission,n=78)according to the different admission mode.The statistical methods of independent samples t-test and chi-square test were used to compare the changes in the general baseline data(including gender,age,smoking history,hypertension history,diabetes history,and hyperlipidemia history),clinical prognostic indicators(length of stay,hospital costs,and cardiac ultrasound ejection fraction),each time point of the chest pain center(Door to Balloon time(D2B),Symptom Onset-to-First Medical Contact(S2FMC),Symptom Onset-to-balloon(S2B),time from first medical contact to first ECG completion,and time from troponin extraction to time of result reporting)between the pre-epidemic group and the epidemic group,A and C,and B and D,respectively.Results:After statistical analysis,it was found that:(1)There were no significant differences between patients in the pre-epidemic and epidemic groups in terms of indicators of general baseline information,clinical prognostic indicators,and time points of the chest pain center(p>0.05);(2)There were no significant differences between patients in groups A and C in terms of both general baseline information and clinical prognostic indicators,but in terms of time points of the chest pain center,the first ECG time,D2 B time,and S2 B time of group A patients were significantly lower than those of group C patients(p<0.05);(3)There were no significant differences between patients in groups B and D in terms of general baseline information,clinical prognostic indicators,and various time points of the chest pain center(p>0.05).Conclusion: Through the comparative analysis of the data of four groups of patients before and during the COVID-19,we found that there were no major differences in the indicators of each group of patients before and during the epidemic,and although some of the indicators of the time points of the chest pain center showed significant differences,all the time points were within the requirements,indicating that the relevant systems and measures developed by our hospital during the COVID-19 were active and effective,which not only ensured the safety of medical and nursing staff and patients,but also did not delay the medical treatment of STEMI patients undergoing emergency PCI.These measures have also provided experience for other hospitals declaring chest pain centers to prevent and control the epidemic.