Myocarditis (inflammation of the heart muscle) occurs as a rare complication after a general infection, e.g. mumps or diphtheria, parasitic infestations such as toxoplasmosis or viral infections of the respiratory system. In mild cases, the only symptoms may be slight chest pain and loss of breath. In severe cases, e.g. in myocarditis due to diphtheria, cardiac decompensation may occur.
If a physician, who is treating your basic illness, suspects you are suffering from some form of myocarditis, he will refer you to the X-ray of the chest and the electrocardiogram (EKG) to confirm the diagnosis.
The first goal is to eliminate the basic infection. In addition, a complete rest is recommended to the patient. In some forms of myocarditis, treatment with corticosteroids will accelerate healing.