GE CARESCAPE - About the arrhythmia detection

ECG
AlarmmessageArrhythmiaanalysisAlarmprioritydefaultArrhythmiadetection
criteria
TachyFull
TRAMorcombination
monitoringonly.
Accordingtopriority
setting
Occurswhenfour
consecutiveRRintervals
orthedisplayed4/8-beat
averageECGheart
rateexceedsthe
user-selectedcommon
HRhighlimitorECGHR
highlimit.
Trigeminy
FullAccordingtopriority
setting
EverythirdbeatisPVC(N,
N,V,N,N,V,N,N,V).
VBradyFullAccordingtopriority
setting
RunofPVCsaredetected
witharunlengthofat
leastthreebeats.In
addition,atleasttwo
consecutiveRRintervals
intherunmusthavean
effectiveheartrateless
than50bpm(OR,PACU,
ICU,ED)or60bpm(NICU).
VFib/VTachLethalHighECGwaveformindicates
achaoticventricular
rhythm.
VTachLethalAccordingtopriority
setting.
AlwaysHighifVTach
duration>30seconds,
andHR>180bpmin
NICUor>150bmpin
othersoftwarepackages,
andHRisovertheuser
adjustedHRhighlimit.
OR,PACU,ICU,andED
softwarepackages:Arun
ofPVCsisdetectedwith
arunlengthofsixbeats
ormoreandtheeffective
HRexceeds100bpm.
NICUsoftwarepackage:
ArunofPVCsisdetected
witharunlengthofsix
beatsormoreandthe
effectiveHRexceeds160
bpm.
VT>2
FullAccordingtopriority
setting
ArunofPVCsisdetected
witharunlengthofmore
thantwobeatsbutless
thanthesixbeats.In
additionatleasttwo
consecutiveRRintervals
intherunmusthavean
effectiveHRthatexceeds
100bpm.
Aboutthearrhythmiadetection
WhenanECGsignalisdetectedatthestartofmonitoring,thearrhythmiadetection
algorithmbeginsacquiringandanalyzingQRScomplexesintheleadsusedfor
arrhythmiadetection.Thisphaseisknownaslearning.Oncelearningiscomplete,the
dominantQRScomplexisstoredasareferencetemplate.Referencetemplateisused
asanormalmorphologyofthatpatientanditiscomparedwithincomingbeatsto
identifypossiblearrhythmias.
180CARESCAPEModularMonitors2062971-001