Vascular Surgery, The University of Tokyo


Medical Education

It is obvious that surgeons must be good at surgery. However, no one is good from the beginning. How do surgeons improve their skills?

Traditionally, improvement of surgeons’ skills relied on the so-called apprenticeship system, which was not systemically constructed. If you are instructed by an enthusiastic senior and gain a lot of experience in a hospital with many cases, you will become a good surgeon in a few years. This was the typical way to build a career. However, non-systemic instruction might cause a wide difference in surgeons’ skills, which should be a big problem for the patients, especially those who undergo “major” life-threatening surgery. In departments such as cardiac surgery and brain surgery where small mistakes cause major complications, the training methodology for young surgeons has been discussed.

What about a vascular surgeon? Most vascular surgeons practice general surgery, especially gastrointestinal surgery. The vascular procedures performed by young surgeons are sometimes relatively easy and have a low risk of major complications, such as arteriovenous shunt creation, high ligation, and varicocelectomy for varicose veins of the lower extremity. Therefore, young vascular surgeons can accumulate experience step by step from lower to higher difficulty surgery.

However, the construction of a “training system for young surgeons” as a social demand is an urgent issue. In 2017, the Japanese Board of Cardiovascular Surgery decided that Off the Job Training must be conducted for 30 hours as a condition for applying for the specialty.

Off the Job Training (Off-JT)

The Off-JT Committee was established at the Japanese Society for Vascular Surgery, and our department has been involved. Our idea is that if we do it as training, we should get evidence.

We decided to recruit medical students, residents, young surgeons, and even skilled surgeons and evaluated the results using our training system. This is a simple and inexpensive setting that is mostly purchased at 100-yen shops, which is usually used in any institute. However, surgical needle threads and grafts are expensive. If you register for this study, you can train with them for free.

Participants with a doctor’s license will be given a certificate according to the training time. (★Sample)

Off the Job Training
Off the Job Training (Medical students undergoing Off-JT)

These videos demonstrate our Off-JT method. These are posted on the homepage of the Japanese Society for Vascular Surgery and regarded as a model case of the Off-JT system.

(1)Hoshina Method Off JT ~Simulation using flower pod (1) Creation Version~

(2)Hoshina Method Off JT ~Simulation using flower pod (1) Practice Version~

(3)Distal Anastomotic Method (2 to 5 points method)

Career Path (in Japanese)






Vascular Board Review (Clinical conference) of The University of Tokyo

The vascular board review of The University of Tokyo is held twice a year. The chief (Dr. Hoshina) invites vascular surgeons from affiliated hospitals, medical physicians, vascular nurses, and medical students. During the conference, they report cases operated in their own institutes and discuss them, including the treatment strategy. As the field of vascular surgery is wide and the selection and combination of treatments vary widely, a controversy usually creates a sensation. Dr. Osamu Sato and Dr. Tetsuro Miyata, the legends of vascular surgery in Japan, always attend the conference and give us useful comments and advice, which are exciting and educational for young surgeons.

For young doctors and medical students:

Please attend the conference if you are interested. If you email us ( in advance, the staff in our department will guide you on the day. The secretary of our department prepares various types of confectionary, juice, and coffee. Please enjoy!

Studying abroad (in Japanese)