Objective To investigate the predictive value of fragmented QRS(fQRS)on electrocardiogram combined with peak ejection rate(PER)and peak filling rate(PFR)for short-term major adverse cardiovascular event(MACE)in patients with acute non ST segment elevation myocardial infarction(NSTEMI).Methods A retrospective study was conducted on 120 patients with NSTEMI treated at the Wenzhou Traditional Chinese Medicine Hospital of Zhejiang Chinese Medical University from January 2020 to March 2022.The incidence of MACE within 6 months after discharge was recorded.Clinical data of patients with and without MACE were compared.Multivariate logistic regression analysis was performed to identify factors influencing the occurrence of short-term MACE.The efficacy of these factors for predicting short-term MACE in patients with NSTEMI alone and separately was analyzed using ROC curve.Results During the 6 months of follow-up,there were MACE in 23 cases and no MACE in 97 cases.Heart rate,diastolic blood pressure,systolic blood pressure,PER,and the proportions of patients with smoking history,drinking history,history of myocardial infarction,history of coronary artery disease,history of percutaneous coronary intervention,history of coronary artery bypass grafting and electrocardiographic fQRS in the MACE group were higher than those in the non-MACE group.Age,hemoglobin,lymphocyte count,aspartate aminotransferase and PFR were lower than those in the non-MACE group.The differences were statistically significant(all P＜0.05).Electrocardiographic fQRS,PER and PFR were independent influencing factors of short-term MACE in patients with NSTEMI(OR=2.678,2.361,2.450,all P＜0.05).The AUCs of fQRS,PER,PFR,and their combination for predicting short-term MACE in patients with NSTEMI were 0.654,0.698,0.807 and 0.931,respectively.Conclusion The combination of fQRS with PER and PFR has high predictive value for the occurrence of short-term MACE in patients with NSTEMI.
Acute non ST segment elevation myocardial infarctionMajor adverse cardiovascular eventFragment-ed QRSPeak ejection ratePeak filling rate
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