?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Stable+Atrial+Sensing+on+Long-Term+Follow+Up+of+VDD+Pacemakers%0A&rft.creator=Shah%2C+Ashok&rft.creator=Aithal%2C+Jairam&rft.creator=Narula%2C+Dhiraj&rft.creator=Kerkar%2C+Prafulla&rft.subject=Indian+Pacing+and+Electrophysiology+Journal&rft.description=Background%3A%0A++++++++++++The+hemodynamic+advantages+of+maintaining+AV+synchrony+through+AV+synchronous+pacing+are+widely+known+as+compared+to+single+chamber+pacing.+DDD+pacemaker+implantation+entails+higher+cost+and+is+technically+more+challenging+than+the+VDD+pacemaker.%0A%0AMethods%3A%0A++++++++++++Seventy+one+patients+underwent+VDD+lead+(Biotronik+GmbH%2C+St.+Jude+Medical+and+Medtronic+Inc.)+implantation+at+KEM+hospital%2C+Mumbai+during+a+period+of+3+years+through+subclavian%2C+axillary+and+cephalic+routes+for+degenerative%2C+post-surgical+or+congenital+high+grade+atrioventricular+or+complete+heart+block.+They+were+followed+up+regularly+for+ventricular+threshold+and+P+wave+amplitude+of+the+floating+atrial+dipole.%0A%0AResults%3A%0A++++++++++++Follow+up+data+of+almost+95%25+of+patients+is+available+for+a+period+of+15.8+%C2%B1+6.7+months.+P+wave+amplitude+at+implant+was+2.1+%C2%B1+0.7mV+and+at+follow+up+1.1+%C2%B1+0.6mV+with+mean+ventricular+threshold+of+%3C0.5V+at+implant+and+%3C1V+at+follow-up.%0A%0AConclusion%3A%0A++++++++++++Implantation+of+a+single+lead+VDD+pacemaker+is+possible+in+all+patients+with+symptomatic+AV+block+and+intact+sinus+node+function+without+any+technical+complications.+P+wave+sensing+is+reliable+and+consistent+with+floating+atrial+lead+at+an+average+follow+up+of+15.8+months%2C+providing+an+excellent+alternative+to+DDD+pacemaker+implantation.%0A&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.contributor=Ghosh%2C+Joydeep&rft.date=2006-07&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=text%2Fhtml&rft.identifier=http%3A%2F%2Fcogprints.org%2F5241%2F1%2Fshah.htm&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F5241%2F2%2Fshah.pdf&rft.identifier=++Shah%2C+Ashok+and+Aithal%2C+Jairam+and+Narula%2C+Dhiraj+and+Kerkar%2C+Prafulla++(2006)+Stable+Atrial+Sensing+on+Long-Term+Follow+Up+of+VDD+Pacemakers.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F5241%2F