Myocarditis infarction is about.

As ishemic attack, as ending with necrosis of myocardial, is insufficient blood current with a scar forming, where are coronary arteries are closed with thrombosis , in atherosclerotic plaque splitting.

Symptoms are ache heart in, not fighting with nitroglycerine, as acute beginning, very intensively,sweating till, breath failure, nausea, vomiting, weakness, as sometimes aches are in hand, shoulder, belly, jaw low, as heart pressing of heavy hand, as fear for dead.
Acute stage having for ten days, here are alarms having till heart rhythm bad, heart failure, thus on the first signs call a doctor, and prognosis depends from the infarctus form, as a big zone for necrosis, as with complications or without, and in not helping aches fighting within 20 minutes,call a doctor.

At hospital you are getting ecg test, ferments in blood, echo ECG, radioisotope, coronarography, as test for heart.
As for a first aid are lie in bed with rised head, give fresh air, refree from a hard clothes, give nitroglycerine on 0.005 gr  under tongue, not validol, as call a doctor, as timely curing against complications, as at hospital using vessel therapy, as thrombosis diluting, myocarditis blood circulation improving,anti arrhythmic and analgesics remedies.

After hospital are using rehabilitation, as at spa, diet, physical activity, as remedies using.