Newborns undergoing cardiothoracic surgery are carefully monitored postoperatively for a specific period of time. Instead of calling or emailing the values of vital parameters (e.g. heart rate, oxygen saturation) during this period, parents are now able to use this app in order to submit these values. All data is discreetly collected, sent and stored. This data is assessed by the treating physician and in the event of abnormalities the physician will contact the parents/guardians.