Internal Carotid Artery Blood Flow in Infants With Prone Position

A Study on Internal Carotid Artery Blood Flow Velocity Changes in Prone, Head Tilt and Trendelenberg Position in Infants: an Observational Study Using Transfontanel Ultrasound

Little is known about how implementation of prone position contributes to general anesthesia-induced decrease in cerebral blood flow in infants. The investigators investigated this question in participants undergoing untethering, hypothesizing that cardiorespiratory changes during this procedure would reduce cerebral perfusion.

Inclusion Criteria:

• pediatric neurosurgical patients receiving surgery under prone position

Exclusion Criteria:

• patients diagnosed as hydrocephalus
• premature closure of fontanelle
• patients diagnosed as patent ductus arteriosus or other congenital heart disease.