What is type D2 cardiovascular disease?

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Hello doctor! I did a general check-up in Japan, the doctor told me that type D2 heart disease needs to be checked in detail. Doctor let me ask, what is type D2 heart disease, doctor, my health feels normal, when I'm stressed, my heart beats fast, my hands and feet are weak. Thank you doctor!
Ngo Do Le Quyen (1995)
Answer
Hello, doctor would like to answer the question: “What is type D2 heart disease? ” as follows:
According to the information you provided, it is possible that the disease classification system of Vietnam and Japan may be different. Honestly, your doctor can't explain what type D2 cardio is. This can be your heart health rating according to the Japanese scale. However, when stressed, the heart beats faster and accompanied by symptoms of weakness: With the above symptoms, it is difficult for a doctor to give you specific and comprehensive advice. Doctors recommend taking the time to consult and visit with a cardiologist.
You can go to the nearest medical facility or Vinmec Health System Hospital for more detailed examination and advice by doctors. Best regards!

Answered by Doctor Le Duc Hiep - Internal Medicine and Cardiovascular Interventionist - Cardiology Center, Vinmec Times City International Hospital