title: Acute myocardial infarction in a child with myocardial bridge.
abstract: BACKGROUND
  Myocardial infarction (MI) is rare in children, and Kawasaki disease is now recognized as the main cause for MI. In this report, we present a child with MI caused by myocardial bridge (MB).
  
  
  METHODS
  A 7.5-year-old boy was admitted to Weifang People's Hospital on September 16, 2008 for heart disease. By electrocardiogram, coronary CT angiography, emission computed tomography, and other examinations, he was initially diagnosed as having (1) acute inferior myocardial infarction and extensive anterior myocardial infarction; (2) fulminant myocarditis; or (3) coronary myocardial bridge. He was treated with oxygen, thrombolysis, myocardial nutrition, vitamin C (4.0 g per time), dexamethasone (7.5 mg per time), a large dose of gamma globulin, and interferon.
  
  
  RESULTS
  Myocardial enzymes, liver function, C-reactive protein, and troponin-I returned to normal at 21 days after treatment. At 29 days, electrocardiogram indicated that II, III, aVF, V4 - V6 leads had abnormal Q wave, and ST-T changed. The patient was discharged.
  
  
  CONCLUSIONS
  Myocardial bridge may be one of the causes of MI in children.
authors.affiliation: Department of Pediatrics, Weifang People's Hospital Affiliated to Weifang Medical College, Weifang 261041, China.
authors.forename: Xiao-Dong
authors.initials: XD
authors.lastname: Liu
authors.affiliation: Department of Pediatrics, Weifang People's Hospital Affiliated to Weifang Medical College, Weifang 261041, China.
authors.forename: Chun-Lei
authors.initials: CL
authors.lastname: Sun
authors.affiliation: Department of Pediatrics, Weifang People's Hospital Affiliated to Weifang Medical College, Weifang 261041, China.
authors.forename: Su-Ping
authors.initials: SP
authors.lastname: Mu
authors.affiliation: Department of Pediatrics, Weifang People's Hospital Affiliated to Weifang Medical College, Weifang 261041, China.
authors.forename: Xiao-Mei
authors.initials: XM
authors.lastname: Qiu
authors.affiliation: Department of Pediatrics, Weifang People's Hospital Affiliated to Weifang Medical College, Weifang 261041, China.
authors.forename: Hai-Ying
authors.initials: HY
authors.lastname: Yu
keywords: Acute myocardial infarction; Electrocardiogram; Myocardial bridge