This study was designed to investigate the influence of the acute myocardial infarction checklist on the door-to-balloon time in patients suffering from acute STEMI at Far Eastern Memorial Hospital

Inclusion Criteria:

• all patients who presented to the emergency department of Far Eastern Memorial Hospital within 12 hours of the onset of ischemic chest pain
• patients with diagnostic criteria of acute ST-elevation myocardial infarction on electrocardiogram, e.g. at least 0.1 mV in two or more contiguous electrocardiographic leads or a new onset of bundle branch block
• patients were preparing for emergency cardiac catheterization

Exclusion Criteria:

• patients who did not fulfill the diagnostic criteria of acute myocardial infarction on electrocardiogram
• patients who were not eligible for cardiac catheterization
• patients who refused cardiac catheterization
• patients who suffered from acute myocardial infarction after admission to ward or intensive care unit for any reason
• patients who had an ambiguous diagnosis that the decision of emergency cardiac catheterization was made after admission to ward or intensive care unit

All patients with diagnostic criteria of acute ST-elevation myocardial infarction who were preparing for emergency cardiac catheterization