?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Arrhythmia+Diagnosis+Following+an+ICD+Shock%3A+Comment+&rft.creator=Levine%2C+Paul+A.&rft.subject=Indian+Pacing+and+Electrophysiology+Journal&rft.description=This+case+study+by+Dr.+John1+demonstrates+the+care+that+one+must+take+in+programming+an+implantable+cardioverter+defibrillator%2C+the+complexity+of+these+patients+and+the+utility+of+the+internal+diagnostics+in+the+system+to+facilitate+the+physician's+understanding+of+device+behavior.+Even+the+single+chamber+ICDs+have+SVT+discrimination+algorithms+that+can+be+enabled+in+an+effort+to+differentiate+SVT+from+VT+allowing+the+device+to+withhold+ATP+and+shock+therapy+in+the+setting+of+an+SVT.+Many+physicians%2C+myself+included%2C+will+initially+utilize+these+discriminators+in+a+monitoring+mode+preferring+to+deliver+unnecessary+therapy+rather+than+inappropriately+withholding+needed+therapy.+This+also+provides+an+opportunity+to+better+understand+all+the+rhythms+that+may+be+occurring+in+a+patient%2C+many+of+which+may+not+have+been+appreciated+prior+to+the+implant.+After+one+or+more+SVT+episodes+have+occurred+and+the+clinician+has+a+chance+to+review+the+stored+electrograms+(first+introduced+by+Ventritex)+along+with+the+response+of+the+device+to+any+discriminators%2C+a+decision+can+be+made+as+to+how+the+ICD+prescription+might+be+adjusted.&rft.publisher=Indian+Pacing+and+Electrophysiology+Group&rft.contributor=Singh%2C+Balbir&rft.contributor=Lokhandwala%2C+Yash&rft.contributor=Francis%2C+Johnson&rft.contributor=Gupta%2C+Anup&rft.date=2002-01&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=text%2Fhtml&rft.identifier=http%3A%2F%2Fcogprints.org%2F4325%2F1%2Flevine2.htm&rft.identifier=++Levine%2C+Paul+A.++(2002)+Arrhythmia+Diagnosis+Following+an+ICD+Shock%3A+Comment.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F4325%2F