title: Deep sedation with propofol for children undergoing ambulatory magnetic resonance imaging of the brain: experience from a pediatric intensive care unit.
abstract: OBJECTIVE
  Use of intravenous propofol sedation to facilitate completion of magnetic resonance imaging of the brain in children.
  
  
  METHODS
  Retrospective, cross-sectional.
  
  
  METHODS
  A university-affiliated pediatric intensive care unit.
  
  
  METHODS
  A total of 115 children who received intravenous propofol to complete magnetic resonance imaging of the brain January 1 through December 31, 2001.
  
  
  METHODS
  Intravenous propofol infusion.
  
  
  RESULTS
  The mean age was 4.2 +/- 3.1 yrs, and there were 63 boys and 52 girls. Sixty-nine percent of patients belonged to ASA physical status class I, and 31% belonged to ASA class II. All studies were completed with satisfactory image quality. The total dose of propofol used to complete a magnetic resonance image of the brain was 4.3 +/- 1.7 mg/kg body weight. The mean duration of sedation induction was 4.5 +/- 3.5 mins. The mean time to recovery (from the end of the procedure) was 20 +/- 15 mins. The duration of the procedure averaged 39 +/- 20 mins, and the time to discharge from the hospital was 50 +/- 21 mins from the end of the procedure. No episodes of hypoxia, apnea, or a need for artificial airway were noted. Systolic blood pressure decreased 10% +/- 13%, but none of the patients met the criteria for hypotension. A telephone call the next day to the family did not reveal any delayed complications.
  
  
  CONCLUSIONS
  Propofol can safely facilitate ambulatory magnetic resonance imaging of the brain in children, and it is associated with brief induction, recovery, and discharge times from the hospital. A drop in blood pressure, although mild and transient, does occur. Therefore, appropriate monitoring and preparedness for cardiorespiratory support are essential.
authors.affiliation: Department of Pediatrics, Michigan State University, Hurley Medical Center, Flint, MI 48503, USA. rashedh48@hotmail.com
authors.forename: Rashed A
authors.initials: RA
authors.lastname: Hasan
authors.forename: Jay R
authors.initials: JR
authors.lastname: Shayevitz
authors.forename: Vipul
authors.initials: V
authors.lastname: Patel
mesh_terms: D000553:Ambulatory Care; D001921:Brain / Q000473:pathology*; D002319:Cardiovascular System / Q000187:drug effects; D002648:Child; D002675:Child, Preschool; D016292:Procedural Sedation; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D006993:Hypnotics and Sedatives / Q000008:administration & dosage*; D007223:Infant; D007262:Infusions, Intravenous; D015278:Intensive Care Units, Pediatric; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D015742:Propofol / Q000008:administration & dosage*; D020127:Recovery of Function; D012137:Respiratory System / Q000187:drug effects; D012189:Retrospective Studies; D013997:Time Factors
chemical_list: D006993:Hypnotics and Sedatives; D015742:Propofol