title: [Factors associated with acute ST-segment elevation myocardial infarction with normal angiographic findings of the coronary artery].
abstract: OBJECTIVE
  To identify the factors related to acute ST-segment elevation myocardial infarction (STEMI) with normal angiographic findings of the coronary artery.
  
  
  METHODS
  An retrospective analysis of the electrocardiographic, echocardiographic, and angiographic data of 271 STEMI cases was conducted. Of these patients, 29 had normal coronary artery by angiography and from the rest patients presenting abnormal angiographic findings of the coronary artery, 60 were randomly selected to serve as the control group. Multiple logistic regression analysis was performed to identify the independent factors related to acute STEMI with normal coronary artery by angiography.
  
  
  RESULTS
  The incidence rate of STEMI with normal coronary artery was 10.7%. Univariate analysis showed that age, smoking, diabetes mellitus, absence of pre-infarction angina, and wall motion score were related to STEMI with normal coronary artery (P<0.05), whereas multiple logistic regression analysis identified the former 3 factors as the related factors (P<0.05). Wall motion score, left ventricular ejection fraction, cardiac index, and stroke volume index were higher, and cardiac events fewer in patients with normal coronary artery than in those with abnormal coronary artery (P<0.01).
  
  
  CONCLUSIONS
  Acute STEMI with normal coronary artery is more likely to occur in young smokers without pre-infarction angina, possibly in association with spontaneous reperfusion.
authors.affiliation: Intensive Care Unit, Shenzhen Hospital of Beijing University, Shenzhen 518000, China.
authors.forename: Zhen-tao
authors.initials: ZT
authors.lastname: Liang
authors.forename: Jun
authors.initials: J
authors.lastname: Guo
authors.forename: Xiao-ping
authors.initials: XP
authors.lastname: Yu
authors.forename: Bin
authors.initials: B
authors.lastname: Zhang
authors.forename: Wei-xing
authors.initials: WX
authors.lastname: Zhang
authors.forename: Zhong-sheng
authors.initials: ZS
authors.lastname: Zhu
authors.forename: Hua
authors.initials: H
authors.lastname: Luo
authors.forename: Lei
authors.initials: L
authors.lastname: Huang
mesh_terms: D000328:Adult; D000367:Age Factors; D017023:Coronary Angiography; D004452:Echocardiography; D004562:Electrocardiography; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis* / Q000000981:diagnostic imaging*; D012189:Retrospective Studies; D012907:Smoking