1 ene 1900 año - Modern Surgery: Blood Transfusions

Descripción:

The idea of blood transfusions was known since William Harvey's discovery of the circulation of the blood in the 1600s, but were rarely successful because the blood of the recipient often clotted. Blood also clotted if it was stored outside the body.
In 1900, Karl Landsteiner discovered blood groups. Certain blood groups can't be mixed as the blood will clot - Landsteiner found that transfusions were safe as long as the blood groups were the same. In 1914, during World War 1, doctors found that sodium citrate stopped blood clotting so it could be stored outside the body. In 1917, this discovery was vital when the first ever blood bank was set up at the Battle of Cambrai. In 1946, the British National Blood Transfusion Service was established.

Añadido al timeline:

fecha: