GE CARESCAPE - Entropy points to note; Entropy measurement setup; Entropy equipment to patient connection

Entropy
●Entropymeasurementisnotindicatedforpediatricpatientsyoungerthantwo
yearsold.
●Entropyisnotvalidatedwithpatientsundergoingsedation.
●Unusualorexcessiveelectricalinterferenceisapotentialcauseforartifact.During
extendedperiodsofelectrocauterytheremaynotbeanygoodEEGepochs,and
Entropyvalueswillnotbedisplayed.
●ECG,frequenteyemovements,coughing,musclerigidityandpatientmovement
causeartifactandmayinterferewiththemeasurement.Epilepticepisodesmay
alsocauseinterference.
●Entropyreadingsmaybeinconsistentwhenmonitoringpatientswithneurological
disorders,traumasortheirsequelae.
●Entropyreadingsmaybeinconsistentwhenusingbenzodiazepines,nitrousoxide
orketamineasanesthetics.
●PsychoactivemedicationorveryhighopiatedosesmaysuppressEEGandcause
inconsistentEntropyreadings.
●CoolingthepatientmaysuppresstheirEEGandcauseinconsistentEntropy
readings.
Entropypointstonote
●AportionoftheEntropysoftwareisderivedfromtheRSADataSecurity,Inc.MD5
Message-DigestAlgorithm.
●Entropysensorsaredisposable,forsingle-patientuseonly,andnotmadewith
naturalrubberlatex.
●Makesurethatthesensorconnectorsofthesensorcablearenotincontactwith
uids.
●Alwaysensurethatthesensorisproperlyattachedtothepatientandconnected
tothecable.
●PriortousingEntropyasanadjuncttoguideanesthesiacare,itisrecommendedto
reviewimportantsituationsandlimitationsthatcaninuencetheEntropynumber.
GErecommendsthatcliniciansreviewthefollowingpracticeadvisorythatincludes
asectiononbrainfunctionmonitoring:TheAmericanSocietyofAnesthesiologists,
PracticeAdvisoryforIntraoperativeAwarenessandBrainFunctionMonitoring
(Anesthesiology2006;104:847-64).Cliniciansarealsorecommendedtomaintain
currentknowledgeofallrequiredregulatory,practiceorresearchinformationon
brainfunctionmonitoringandrelatedtopics.
Entropymeasurementsetup
Entropyequipmenttopatientconnection
2062971-001CARESCAPEModularMonitors351