?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Arrhythmia+Diagnosis+Following+an+ICD+Shock%3A+Part+II%0A&rft.creator=John%2C+Roy++M.&rft.subject=Indian+Pacing+and+Electrophysiology+Journal&rft.description=A+70+year+old+male+with+history+of+coronary+artery+bypass+surgery+and+depressed+left+ventricular+ejection+fraction+of+30%25+presented+with+hemodynamically+unstable+sustained+monomorphic+ventricular+tachycardia+5+years+previously.+He+underwent+implantation+of+a+single+chamber+ICD.+Six+months+ago%2C+he+experienced+multiple+ICD+shocks+for+ventricular+tachycardia+and+was+placed+on+amiodarone%2C+the+maintenance+dose+of+which+was+increased+to+400+mg+daily+for+arrhythmia+recurrence.+Two+months+ago%2C+his+ICD+was+upgraded+to+provide+atrial+synchronized+biventricular+pacing+for+progressive+heart+failure+symptoms+and+marked+sinus+bradycardia.+His+underlying+QRS+duration+was+160+msec.+A+Medtronic+Attain+OTW+4193+lead+was+placed+in+the+posterolateral+LV+branch+of+the+coronary+sinus.+This+lead+was+connected+in+parallel+via+a+bipolar+connector+with+an+existing+Medtronic+Sprint+6945+ICD+lead+in+the+right+ventricle+to+the+ventricular+IS-1+port+of+an+GEM+III+DR+7275+dual+chamber+ICD.+Adequate+atrial+synchronized+biventricular+pacing+was+obtained+in+the+DDDR+mode.+ICD+detection+was+programmed+for+fast+VT+from+171+to+200+bpm+and+for+VF+above+200+bpm.&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=2002-07&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=text%2Fhtml&rft.identifier=http%3A%2F%2Fcogprints.org%2F4310%2F1%2Fquiz2.htm&rft.identifier=++John%2C+Roy+M.++(2002)+Arrhythmia+Diagnosis+Following+an+ICD+Shock%3A+Part+II.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F4310%2F