Abstract：Objective To observe the influence of fragmented QRS complex(fQRS) on clinical prognosis of patients with acute non-ST elevation myocardial infarction(NSTEMI). Methods Retrospective analysis was performed on the clinical data of 122 NSTEMI patients who had been treated in our hospital from November 2016 to October 2017. According to their ECG examination results on admission, those complicated by fQRS changes were classified into fQRS group(61 cases) while the ones without fQRS changes were divided into nonfQRS group(61 cases). The incidences of major adverse cardiac events(MACE) and efficacy of one more PCI were compared between the two groups. ResultsAmong the two groups, the incidences of heart failure, cardiac death, recurrent myocardial infarction and allcause death did not vary significantly(P＞0.05). Compared with nonfQRS group, the incidence rate of recurrent angina pectoris and total incidence of MACE in fQRS group were higher, with statistically significant differences(P＜0.05); the proportion of the patients undergoing PCI for twice was higher in fQRS group, also with statistically significant differences(P＜0.05). Conclusion If fQRS changes are observed in NSTEMI patients, the risk of MACE will increase. fQRS can serve as an important index to predict the prognosis of NSTEMI patients.
2018, Vol. 27 
