Therapeutic Hydrogen Gas? (IMAGE) Boston Children's Hospital Caption New research suggests that adding a dash of hydrogen to the usual mix of respiratory gases could help protect babies' brains during and after cardiopulmonary bypass and ECMO. Credit Elena Hartley / Boston Children's Hospital Usage Restrictions please credit as indicated License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.