Evaluation of a pulse oximeter during profound hypothermia. An assessment of the Biox 3700 during induction of hypothermia before cardiac surgery in paediatric patients.
The accuracy of the Ohmeda Biox 3700 pulse oximeter was evaluated in 10 paediatric patients, deliberately surface cooled to 25 degrees C in preparation for cardiac surgery, by comparing the arterial oxygen saturation results obtained from an Ohmeda Biox 3700 and a Radiometer OSM-2 Hemoximeter. Though there was a good correlation between the two series of results, the arterial oxygen saturation was over-estimated by the pulse oximeter compared to the OSM-2 Hemoximeter in the temperature range 36 degrees to 30 degrees C and under-estimated below 30 degrees C. These differences were greatest when the initial saturations were low.
al Khudhairi
D
D
Cardiac Department, Armed Forces Hospital, Riyadh, Saudi Arabia.
Prabhu
R
R
el Sharkawy
M
M
Burtles
R
R
D006348:Cardiac Surgical Procedures / Q000295:instrumentation* / Q000379:methods; D002648:Child; D005069:Evaluation Studies as Topic; D006801:Humans; D007036:Hypothermia, Induced; D010092:Oximetry / Q000295:instrumentation*