For the first time, a brain surgery was performed on a fetus in the womb [Video]

For the first time ever, surgery was performed on a fetus’s brain while it was inside the womb, and the procedure was documented in a recent study.

The study, published in the peer-reviewed journal Stroke on Thursday, documented the process that doctors took to repair a malformed blood vessel in the fetus’s brain. The procedure was done while the woman was pregnant at 34 weeks.

The baby ended up being born in March and she did not need any medications or treatments since she was discharged, the study stated, where doctors described the process as a “first-of-its-kind procedure.” The trial was done in order to find a new treatment for vein of Galen malformation (VOGM), which is described by the Boston Children’s Hospital as a “type of rare blood vessel abnormality inside the brain” where the “misshapen arteries in the brain connect directly with veins.”

Left untreated, VOGM could cause blood rush towards the heart and …