http://wikiless.i2p/wiki/Myocardial_infarction?lang=en
It could be felt as an unexplained anxiety, and pain might be absent altogether. [ 29 ] Levine's sign , in which a person localizes the chest pain by clenching one or both fists over their sternum , has classically been thought to be predictive of cardiac chest pain, although a prospective observational study showed it had a poor positive predictive value . [ 32 ] Typically, chest pain because of ischemia, be it unstable angina or...