[Beginning Knowledge of Transfusion in Japan]

Area of Science:

• Medical History
• History of Medicine in Japan
• Transfusion Medicine

Context:

• Exploration of Western medicine's introduction to Japan during the Edo period.
• Role of Dutch trade and translations in disseminating medical knowledge.
• Early 19th-century Japanese engagement with Western medical texts on transfusion.

Purpose:

• To trace the historical introduction of blood transfusion concepts to Japan.
• To document the earliest Japanese writings and translations related to transfusion.
• To establish the timeline of transfusion's conceptualization versus its practical implementation in Japan.

Summary:

• The earliest documented Japanese writing on blood transfusion dates to 1804, based on translations of Lorenz Heister's "Chirurgie."
• Japanese physicians learned about blood transfusion through Dutch translations of Western medical books during Japan's period of isolation.
• While the concept was introduced in the early 19th century, blood transfusion practice in Japan commenced in 1919.

Impact:

• Highlights the indirect pathways through which medical knowledge was acquired during Japan's isolationist period.
• Provides a historical foundation for understanding the development of transfusion medicine in Japan.
• Demonstrates the significant time lag between the introduction of a medical concept and its clinical application.