Preventive medicine is classified into three levels depending on the period and the person in need of medical intervention. First is the primary level, which involves health promotion measures to prevent the occurrence of disease, next is the secondary level, which involves early treatment to prevent the severity of disease, and lastly, the tertiary level, which involves treatment of subsequent complications and to prevent the recurrence of the disease among the seriously ill. Before I started my private practice, I worked at a general hospital in Saitama Prefecture. Of course, since people come to the hospital already sick, all of the cases I was involved in was on the tertiary level. A lot of critically ill patients wanted to go home but they couldn't because they had to be connected to tubes and machines for treatment. As I was working with these people, I had a vision, albeit vague, about implementing a home health care program if I start my own clinic. After 13 years of working as a surgeon, I decided to start a private medical practice. Around that time, I was the primary physician of a patient with terminal esophageal cancer, who happened to live in the same city as mine. That patient was discharged on the same day of my resignation and was about to receive home treatment on the same day that I'll be practicing privately.
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