Neonatal Surgery

This study will try to elucidate the neural responses of neonatal patients to surgery-level propofol infusions during induction and maintenance of anesthesia. The main objective is to elucidate the EEG patterns of neural activity that can reliably reflect the level of hypnotic depth in full term neonates undergoing propofol anesthesia based on the classification of EEG into states and the characterization of discrete neonatal EEG events.

The goal of this observational study is to determine the incidence of perioperative cerebral desaturation in neonates undergoing surgery for congenital malformations. The main questions it aims to answer are: 1. The perioperative factors associated with occurrence of cerebral desaturation 2. The association between perioperative cerebral desaturation, perioperative/hospital outcomes, and physiological conditions. Participants will undergo Near-infrared spectroscopy (NIRS) and electroencephalogram (EEG) monitoring for one hour before surgery, during surgery, and up to 24 hours after surgery.