Cerebral Function Monitor Group 14

Members JP Day, BME Brian Snelling, BME Colin Compas, BME Dr. Paul King, Faculty Advisor Dr. Bill Walsh, Advisor Dr. John Wikswo, Collaborator

Device Description Olympic CFM 6000 Cerebral Functioning Monitor Measures brain activity 3 leads Normal reading Between 5-10 mV Abnormal readings Downward shift in range Encephalopathy Seizures

Project Description Electromagnetic Interference ECG Neonatal Devices Movement changes readings Manual suggests moving devices Based on output wattage Some distances unrealistic ECG 1000 greater in amplitude Physically close to brain

Completed Work Met with Dr. Bill Walsh Discussed problem in detail Toured Neonatal wing of VUCH Opportunity to evaluate the machine Used infrequently Access to room/machine Began brainstorm of possible solutions Move equipment Shield device Shield equipment

Completed Work Read CFM literature Olympic Manuals Segregation Recommendations Distances Based on Wattage Alternate SOP Manual Examples of Interference All types Procedure Clarifications Journal Articles Composition of CFM How to read output graph

Operator’s Manual Suggestions D=distance in meters

Current Work Continue gathering background information Review manuals for cerebral function monitor Contact Olympic Medical Group meeting to discuss next steps Schedule meeting with Dr. John Wikswo Professor of Bioelectricity

Future Work Map EMI of NICU room Compile list of other devices in NICU room Gather SOP manuals Begin research into electromagnetic shielding Actively filter ECG signal

References Vries L, Hellstrom-Westas L. Role of cerebral function monitoring in the newborn. Archives of Disease in Childhood, 2007;27. Spitzer A. Neonatal Cerebral Function Monitoring. Neonatalogy Today, 2006;1:1-12. Gluckman P, Wyatt J, et al. Selective head cooling with mild systemic hypothermia after neonatal encephalopathy: multi-centre randomized trial. Lancet. 2005;365:663-70. al Naqeeb N, Edwards AD, Cowan FM, Azzopardi D. Assessment of neonatal encephalopathy by amplitude integrated electroencephalography. Pediatrics 1999; 103(6):1263–1271. Archbald F, Verma UL, Tejani NA, Handwerker SM. Cerebral function monitor in the neonate. II: Birth asphyxia. Dev Med Child Neurol 1984; 26(2):162–168. Greisen G. Tape-recorded EEG and the cerebral function monitor: amplitude-integrated, time-compressed EEG. J Perinat Med 1994; 22(6):541–546. Thornberg E, Thiringer K. Normal pattern of the cerebral function monitor trace in term and preterm neonates. Acta Paediatr Scand 1990; 79(1):20–25. Verma UL, Archbald F, Tejani NA, Handwerker SM. Cerebral function monitor in the neonate. I: Normal patterns. Dev Med Child Neurol 1984; 26(2):154–161.