title: Myocardia ischemia associated with a myocardial bridge with no significant atherosclerotic stenosis.
abstract: BACKGROUND
  Myocardial bridge refers to the myocardial tissue with which the coronary artery is partly covered. Though it has long been regarded to be benign, patients with myocardial bridges may present with myocardial ischemia, acute coronary syndromes, coronary spasm, sudden cardiac arrest or even sudden death.
  
  
  METHODS
  In present study, we reviewed four cases with myocardial bridge and no stenosis of coronary artery, which included acute coronary syndrome and sudden cardiac arrest.
  
  
  CONCLUSIONS
  These cases indicated that cardiac events in patients with myocardial bridge may be associated with coronary spasm, myocardial supply/demand mismatch or cardiac arrest.
authors.affiliation: Department of Cardiology, the First Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, 515041, China. 717146@sina.com.
authors.forename: Min
authors.initials: M
authors.lastname: Yu
authors.affiliation: Department of Cardiology, the First Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, 515041, China. Lihongzhou2006@163.com.
authors.forename: Lihong
authors.initials: L
authors.lastname: Zhou
authors.affiliation: Department of Cardiology, the First Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, 515041, China. stmedchen@163.com.
authors.forename: Tingting
authors.initials: T
authors.lastname: Chen
authors.affiliation: Department of Cardiology, the First Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, 515041, China. stmedyi@163.com.
authors.forename: Kaihong
authors.initials: K
authors.lastname: Yi
authors.affiliation: Department of Cardiology, the First Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, 515041, China. 275608191@qq.com.
authors.forename: Chujuan
authors.initials: C
authors.lastname: Zeng
authors.affiliation: Department of Cardiology, the First Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, 515041, China. stmedt2008@163.com.
authors.forename: Xuerui
authors.initials: X
authors.lastname: Tan
mesh_terms: D054058:Acute Coronary Syndrome / Q000175:diagnosis / Q000209:etiology; D017023:Coronary Angiography; D003329:Coronary Vasospasm / Q000175:diagnosis / Q000209:etiology; D004562:Electrocardiography; D005260:Female; D006323:Heart Arrest / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D054084:Myocardial Bridging / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy; D017202:Myocardial Ischemia / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology / Q000628:therapy; D016896:Treatment Outcome