How does heart cramp ache like to return a responsibility

Heart cramps may be caused by emotional excitement, angina pectoris, acute myocardial infarction and other factors, the correlation analysis is as follows:

1. Emotional excitement,

sympathetic nerve excitation, will cause myocardial contraction accelerated, there will be heart cramp-like pain.

2. Angina pectoris

angina pectoris will cause myocardial insufficiency, so that myocardial activity changes, pain is usually manifested as compression or contraction, and accompanied by heart cramp-like pain.

3. Acute myocardial infarction

Acute myocardial infarction will cause coronary artery insufficiency, leading to myocardial tissue necrosis, necrotic metabolites stimulate the myocardial surface, patients will appear chest distress, cold sweat, heart convulsion and other symptoms.