<unk>  is a common presenting problem. Overall<unk>  is responsible for an estimated 6% of all emergency department visits in the United States and is the most common reason for hospital admission.<unk>  is also very common in primary care clinics, representing 1-3% of all visits. The rate of emergency department visits in the US for<unk>  decreased 10% from 1999 to 2008. but a subsequent increase of 13% was seen from 2006–2011. Less than 20% of all cases of<unk>  admissions are found to be due to coronary artery disease. The rate of<unk>  as a symptom of acute coronary syndrome varies among populations based upon age, sex, and previous medical conditions. In general, women are more likely than men to present without<unk>  (49% vs. 38%) in cases of myocardial infarction.
Chest pain
Angina 
Angina
Abdominal pain
Palpitations
Neck pain
Pain
Orthopnea