Inadvertent Hyperventilation During Intraoperative Care in Neonates

Inadvertent Hyperventilation During Intraoperative Care in Neonates

In order to evaluate current anesthetic practice in the care of preterm infants and neonates, the investigators will retrospectively review surgical procedures in infants who are less than 60 weeks post-conceptual age in which an arterial cannula was placed intraoperatively or in situ upon arrival in the operating room. They will evaluate the mode of ventilation (pressure or volume-controlled), tidal volume or peak inflating pressure, the level of PEEP, inspired oxygen concentration (FiO2), and respiratory rate used during the procedure to determine the average minute ventilation.

Inclusion Criteria:

• neonates (<60 weeks post-conceptual age) undergoing non-cardiac operative procedures in which arterial access is generally present (exploratory laparotomy or thoracotomy)

Exclusion Criteria:

• none