Essentials for diagnosis 
(1) The patient has suffered from common cold, measles, chickenpox, mumps, diarrhea, etc. in 1 to 3 weeks before the onset of the disease.

(2) The patient has marked hypodynamia, pale complexion, palpitation, short breath, chest distress, profuse sweat, dizziness, precordial pain, cold limbs, myodynia, etc.. In infants, food refusal, cyanosis, cold limbs, periblepsis, etc. may occur.

(3) Auscultation of the heart shows increased heart rate, low and dull heart sounds, diminution of the first heart sound at the apex area of the heart. Gallop rhythm, premature beat, coupled rhythm or trigeminy exist. Apex area of the heart may have I to II degree systolic murmur.

(4) Laboratory examinations reveal quickened erythrocyte sedimentation rate, elevated serum creatine phosphokinase, serum aspartate transaminase, lactic dehydrogenase and its isoenzyme. A virus may be isolated from the nasopharynx, feces, serum and pericardial effusion at the early stage while the corresponding antibody to the virus in serum rises at the restoration stage.

(5) Electrocardiogram may show arrhythmia of varying degree, slightly depressed S -T segment and lower or inverted T-wave. X-ray film reveals spherical cardiomegaly and enlargement of every cardiac atrium and ventricle.

In TCM, a disease or a symptom might be caused by one pathogenic factor, even two or three pathogenic factors. When diagnosing a disease or a symptom, TCM doctors must follow the principle of "Syndrome Dfferentiation", and then "Suit the Remedy to the Case". In order to gain a more definite and valuable diagnosis, it's important and necessary for the doctor to learn the detailed health information of the patient, including his/her disease duration, age, sex, height, weight, family history, urine, stool, diet, sleep, sweat, energy, mood (emotion), as well as the tongue conditions and the palm conditions, etc. If you would want our expert to create a TCM diagnosis, you're welcome to contact us.