Eight-year-old Yu Wenhao has P-type blood which has rare antibodies in her blood. Only nine persons in the world's most populous country have such a blood type.
A bag of the blood was transported through a bullet train from a distance of 1,000 kms.
She was diagnosed with congenital heart disease when she was two. As her family could not afford an operation, she could only be treated this year in a public benefit program at Teda International Cardiovascular Hospital in northeastern China's Tianjin city.
On the day of the operation, a bag of P-type blood was transported in a bullet train from Jiangsu to Tianjin, a distance of 1,000 kilometres, the hospital said.
As the blood is very rare, doctors tried to minimise blood loss in the operation, the hospital said.
The girl is now said to be in a stable condition.
