Aiden was born with an abnormality of his liver that was causing it to fail. His living grandmother donated part of her liver to baby Aiden to save his life. And while Aiden is blissfully unaware of his brush with death, Aiden's mother Heather is thankful that her beliefs about transfusions did not have to prevent his surgery. We're gonna be able to use the same techniques for them now. Both grandma and Aiden are doing fine, and their livers should regenerate in a matter of months.
Doctors reuse the blood that is lost.
Basically recycling it so that no new blood is needed. They also give a drug that boosts the production of red blood cells so that blood is replaced by the body quicker than normal. It's a technique that can be used in many surgeries that involve transfusion and will help many more people than just Jehovah's Witnesses avoid transfusion. Children have less blood in circulation simply because they're smaller. Doctors have to make sure they lose as little as possible because they can't afford to lose as much as an adult.