Entropy
WARNING
Ensurethatthesensorisplacedonthepatient’sforehead
accordingtotheinstructions.Placingthesensorinaway
otherthaninstructedmightresultinrisksduringpatient
debrillation.
Entropycautions
CAUTION
Strong30-40Hzmagneticeldsmaycauseerroneous
Entropymeasurement.Donotusedeviceswithsuchaeld
closetothemoduleorsensor.
CAUTION
Diathermyandexternalinterferencemaydegradethe
performance.
CAUTION
TheEntropymeasurementisalwaystobeusedonlyasan
adjuncttootherphysiologicalparameters.Cliniciansare
advisedtousetheirknowledgeandexperiencewhenmaking
clinicaljudgements.Entropyvaluesarenottobeusedassole
indicatorsofthepatientstatus.
CAUTION
Checkthesensorexpirationdateonthesensorpackage.Do
notuseexpiredsensors.
CAUTION
Donotuseasensorformorethan24hours.
CAUTION
Long-termuseoftheelectrodesmaydegradeconditionofthe
skinespeciallyonpatientswithliverdiseases.
CAUTION
Automaticsensorcheckmayneedtobedisabledifthe70
Hzimpedancechecksignalinterfereswithotherequipment,
suchasEEGmodulewithevokedpotentialsmeasurement.
CAUTION
Allowthecabletodrycompletelyaftercleaning.Moistureand
dirtontheconnectorcanaffectthemeasurementaccuracy.
Entropyindicationsforuse
TheGEHealthcareEntropymodule,E-ENTROPY,andaccessoriesareindicatedfor
adultandpediatricpatientsolderthan2yearswithinahospitalformonitoringthe
stateofthebrainbydataacquisitionofelectroencephalograph(EEG)andfrontal
electromyograph(FEMG)signals.Thespectralentropies,ResponseEntropy(RE)and
StateEntropy(SE),areprocessedEEGandFEMGvariables.TheEntropymeasurement
istobeusedasanadjuncttootherphysiologicalparameters.
Inadultpatients,ResponseEntropy(RE)andStateEntropy(SE)maybeusedasanaid
inmonitoringtheeffectsofcertainanestheticagents,whichmayhelptheusertitrate
anestheticdrugsaccordingtotheindividualneedsofadultpatients.Furthermore
inadults,theuseofEntropyparametersmaybeassociatedwithareductionof
anestheticuseandfasteremergencefromanesthesia.
TheEntropymoduleisindicatedforusebyqualiedmedicalpersonnelonly.
Entropymeasurementlimitations
●ThismeasurementisavailableinORandPACUsoftwarepackagesonly.
350CARESCAPEModularMonitors2062971-001