GE CARESCAPE - ST detection measurement limitations; ST detection points to note; Starting the ST detection; Selecting leads to the ST window

ECG
setofstored(learned)templates.Incrementaltemplateupdatingallowsinformation
fromeachbeat,thatcorrelatesovertime,tobereectedintheassociatedtemplate.
STdetectionmeasurementlimitations
●STvaluesmaybeaffectedbysuchfactorsassomedrugsormetabolicand
conductiondisturbances.
●SinceSTisoftencalculatedwithaxeddelayfromtheJpoint,changesinheart
ratemayaffectST.
●TheSTalgorithmhasbeentestedforaccuracyoftheSTsegmentdata.The
signicanceoftheSTsegmentchangesneedstobedeterminedbyaphysician.
STdetectionpointstonote
●TRAM:WhentheTRAMhasstoredSTdata,andisthenconnectedtothemonitor,
anewreferenceQRSissavedtothemonitoratthetimeofconnection.The
referenceQRSfromtheTRAMcannotbeusedbecausethereferenceQRSdoes
nothavetimestamp.
●STsegmentdeviationsarenotdisplayedforpatientswithventricularpacemakers
oriftherhythmisconsideredasfromventricularorigin.
StartingtheSTdetection
1.SelecttheSTparameterwindoworselecttheHRparameterwindowandtheST
tab.
2.SelectSetup.
3.SelectOnfromtheSTAnalysislist.
SelectingleadstotheSTwindow
1.SelecttheSTparameterwindow.
2.SelectSetup.
3.SelecttheleadsfordisplayfromtheSTWindowlist.
Choicesare:
●STLeads:DisplaystherstthreeSTleads.TheSTleadwiththegreatest
deviationisalsodisplayedintheparameterwindowtotherightoftheSTleads.
●AllLeads:Displaysanterior,inferior,andlateralleadgroups.
●Off:NoSTparameterwindowisdisplayed.Instead,twoECGwaveformsare
displayedbesidetheHReld(ifECG2hasbeenselectedtothescreen).
ChangingthedisplayedSTleads
Youcanselectthedisplayorderoftherst,second,andthirddisplayedSTlead.
1.SelecttheSTparameterwindow.
2.SelectSetup.
3.SelectaleadfromtheSTLeadslist.
AdjustingtheSTpointmanually
Thisselectionisnotavailablewithcombinationmonitoring.
2062971-001CARESCAPEModularMonitors183