非持续性室性心动过速在普通人群中(无论是否患有心脏疾病)的发生率高达4%,而且这很有可能是被低估了。非持续性室性心动过速的患病率随年龄增大而逐渐增加。[6]Kostis JB, McCrone K, Moreya AE, et al. Premature ventricular complexes in the absence of identifiable heart disease. Circulation. 1981;63:1351-1356.http://circ.ahajournals.org/cgi/reprint/63/6/1351http://www.ncbi.nlm.nih.gov/pubmed/7226480?tool=bestpractice.com[7]Fleg JL, Kennedy HL. Long-term prognostic significance of ambulatory electrocardiographic findings in apparently healthy subjects greater than or equal to 60 years of age. Am J Cardiol. 1992;70:748-751.http://www.ncbi.nlm.nih.gov/pubmed/1381549?tool=bestpractice.com非持续性室性心动过速的发病率并无性别差异。但是,男性因为冠心病的发病率较高而更容易发生NSVT。急性心肌梗死患者在接受溶栓治疗后,非持续性室性心动过速的发生率由12%-25%降低到5%-9%。但是,NSVT的发病率受到左心室功能不全的影响。射血分数(EF)<35%的患者中非持续性室性心动过速的发生率为12%,而射血分数(EF)>35%的患者中这一比例为6%。通过 24 小时动态心电图检查发现,肥厚型心肌病患者中 NSVT 的发生率为 25%,而特发性扩张型心肌病中这一比例高达 80%。[8]Maggioni AP, Zuanetti G, Franzosi MG, et al. Prevalence and prognostic significance of ventricular arrhythmias after acute myocardial infarction in the fibrinolytic era. Circulation. 1993;87:312-322.http://circ.ahajournals.org/cgi/reprint/87/2/312http://www.ncbi.nlm.nih.gov/pubmed/8093865?tool=bestpractice.com[9]Bigger JT Jr, Fleiss JL, Kleiger R, et al. The relationships among ventricular arrhythmias, left ventricular dysfunction, and mortality in the 2 years after myocardial infarction. Circulation. 1984;69:250-258.http://circ.ahajournals.org/cgi/reprint/69/2/250http://www.ncbi.nlm.nih.gov/pubmed/6690098?tool=bestpractice.com[10]Kostis JB, Byington R, Friedman LM, et al. Prognostic significance of ventricular ectopic activity in survivors of acute myocardial infarction. J Am Coll Cardiol. 1987;10:231-242.http://www.ncbi.nlm.nih.gov/pubmed/2439559?tool=bestpractice.com[11]Katritsis DG, Siontis GC, Camm AJ. Prognostic significance of ambulatory ECG monitoring for ventricular arrhythmias. Prog Cardiovasc Dis. 2013;56:133-142.http://www.ncbi.nlm.nih.gov/pubmed/24215745?tool=bestpractice.com[12]Chen T, Koene R, Benditt DG, et al. Ventricular ectopy in patients with left ventricular dysfunction: should it be treated? J Card Fail. 2013;19:40-49.http://www.onlinejcf.com/article/S1071-9164(12)01335-8/fulltexthttp://www.ncbi.nlm.nih.gov/pubmed/23273593?tool=bestpractice.com