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type=\u0022text\/css\u0022 rel=\u0022stylesheet\u0022 href=\u0022\/\/d282kpwvnogo5m.cloudfront.net\/sites\/default\/files\/advagg_css\/css__ce2QY63WIanKyr8eSq7eavr1XQRRmFD6ZSmwpyJi8lM__zXwFqpqmxrZOXXcd_TpBQpjuELbmIP9wBR5UuTDWAO4__YJWWMMdfCJuAFm5cUEp88OsodhO3ZA-2lzRfoBsSlk4.css\u0022 media=\u0022all\u0022 \/\u003E\n\u003Clink rel=\u0027stylesheet\u0027 type=\u0027text\/css\u0027 href=\u0027\/sites\/all\/modules\/contrib\/panels\/plugins\/layouts\/onecol\/onecol.css\u0027 \/\u003E\u003C\/head\u003E\u003Cbody\u003E\u003Cdiv class=\u0022panels-ajax-tab-panel panels-ajax-tab-panel-sageoa-tab-art\u0022\u003E\u003Cdiv class=\u0022panel-display panel-1col clearfix\u0022 \u003E\n  \u003Cdiv class=\u0022panel-panel panel-col\u0022\u003E\n    \u003Cdiv\u003E\u003Cdiv class=\u0022panel-pane pane-highwire-markup\u0022 \u003E\n  \n      \n  \n  \u003Cdiv class=\u0022pane-content\u0022\u003E\n    \u003Cdiv class=\u0022highwire-markup\u0022\u003E\u003Cdiv xmlns=\u0022http:\/\/www.w3.org\/1999\/xhtml\u0022 id=\u0022content-block-markup\u0022 xmlns:xhtml=\u0022http:\/\/www.w3.org\/1999\/xhtml\u0022\u003E\u003Cdiv class=\u0022article fulltext-view \u0022\u003E\u003Cspan class=\u0022highwire-journal-article-marker-start\u0022\u003E\u003C\/span\u003E\u003Cdiv class=\u0022section abstract\u0022 id=\u0022abstract-1\u0022\u003E\u003Ch2\u003ESummary\u003C\/h2\u003E\n            \u003Cp id=\u0022p-1\u0022\u003EA second catheter ablation is superior to antiarrhythmic drug (AAD) therapy for reducing the progression and prevalence of atrial fibrillation (AF) after an initial failed pulmonary vein isolation ablation for paroxysmal AF. In this randomized comparison of reablation and AAD therapy, progression to AF was substantial and progression to persistent AF not uncommon with AAD therapy but much less after redo ablation.\u003C\/p\u003E\n         \u003C\/div\u003E\u003Cul class=\u0022kwd-group\u0022\u003E\u003Cli class=\u0022kwd\u0022\u003EInterventional Techniques \u0026amp; Devices\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003ECardiology Clinical Trials\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003EArrhythmias\u003C\/li\u003E\u003C\/ul\u003E\u003Cul class=\u0022kwd-group clinical-trial\u0022\u003E\u003Cli class=\u0022kwd\u0022\u003EInterventional Techniques \u0026amp; Devices\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003ECardiology Clinical Trials\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003ECardiology \u0026amp; Cardiovascular Medicine\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003EArrhythmias\u003C\/li\u003E\u003C\/ul\u003E\u003Cp id=\u0022p-2\u0022\u003EA second catheter ablation is superior to antiarrhythmic drug (AAD) therapy for reducing the progression and prevalence of atrial fibrillation (AF) after an initial failed pulmonary vein isolation (PVI) ablation for paroxysmal AF. In this randomized comparison of reablation and AAD therapy, reported by Jonathan S. Steinberg, MD, Valley Health System, Columbia University, New York, New York, USA, progression to AF was substantial and progression to persistent AF not uncommon with AAD therapy but much less after redo ablation.\u003C\/p\u003E\u003Cp id=\u0022p-3\u0022\u003EThis was a prospective, randomized (1:1), active-controlled, parallel-arm trial in patients with recurrent symptomatic paroxysmal AF after a blanking period of initial PVI ablation procedure. An implantable loop recorder (ILR) was inserted in all patients. In the reablation arm, the endpoint of ablation was complete PVI at which point no additional ablation was undertaken unless an induced sustained atrial tachyarrhythmia (AT) was found. In the AAD arm, patients received either propafenone (450 to 900 mg\/day), flecainide (200 to 400 mg\/day), or sotalol (160 to 320 mg\/day) at the discretion of the investigator instead of a second ablation.\u003C\/p\u003E\u003Cp id=\u0022p-4\u0022\u003EPrimary endpoint was the average AF burden on ILR calculated every 3 months. Secondary endpoints included freedom from recurrence of any AT (AF, flutter, etc), progression to persistent AF (\u22657 days), progression of symptomatic AF prompting need for another ablation, and procedural complications and AAD adverse events.\u003C\/p\u003E\u003Cp id=\u0022p-5\u0022\u003ESeventy-seven patients were randomized into each treatment arm. There were no baseline characteristic differences. Patient ages ranged between 49 and 64 years, 30% were hypertensive, most had a CHADS\u003Csub\u003E2\u003C\/sub\u003E score of \u0026lt;1 and a left ventricular ejection fraction between 51% and \u221263%. The mean duration of AF was \u223c4 years and the mean left atrial diameter was 45 mm. The majority (80%) of patient in the ADD arm received propafenone (mean 579\u00b1205 mg\/day).\u003C\/p\u003E\u003Cp id=\u0022p-6\u0022\u003EIn the reablation group, PVI was accomplished in all 77 patients and no additional ablation was performed other than the repeat PVI. AAD therapy was discontinued in all patients at 6 weeks post ablation.\u003C\/p\u003E\u003Cp id=\u0022p-7\u0022\u003EThe baseline AF burden was similar (\u223c15%) for both groups. During the blanking period both groups experienced a dramatic decline in AF burden. After 3 to 6 months, the AF burden began to increase, and reached 18.8%\u00b111.4% in the AAD group and 5.6%\u00b19.5% in reablation group at 36 months. This difference was significant (p\u0026lt;0.01; \u003Ca id=\u0022xref-fig-1-1\u0022 class=\u0022xref-fig\u0022 href=\u0022#F1\u0022\u003EFigure 1\u003C\/a\u003E).\u003C\/p\u003E\u003Cdiv id=\u0022F1\u0022 class=\u0022fig pos-float  odd\u0022\u003E\u003Cdiv class=\u0022highwire-figure\u0022\u003E\u003Cdiv class=\u0022fig-inline-img-wrapper\u0022\u003E\u003Cdiv class=\u0022fig-inline-img\u0022\u003E\u003Ca href=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/13\/3\/22\/F1.large.jpg?width=800\u0026amp;height=600\u0026amp;carousel=1\u0022 title=\u0022Primary Endpoint\u0022 class=\u0022fragment-images colorbox-load\u0022 rel=\u0022gallery-fragment-images-483309561\u0022 data-figure-caption=\u0022Primary Endpoint\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003E\u003Cimg class=\u0022fragment-image\u0022 alt=\u0022Figure 1.\u0022 src=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/13\/3\/22\/F1.medium.gif\u0022\/\u003E\u003C\/a\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cul class=\u0022highwire-figure-links inline\u0022\u003E\u003Cli class=\u00220 first\u0022\u003E\u003Ca href=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/13\/3\/22\/F1.large.jpg?download=true\u0022 class=\u0022highwire-figure-link highwire-figure-link-download\u0022 title=\u0022Download Figure 1.\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EDownload figure\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00221\u0022\u003E\u003Ca href=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/13\/3\/22\/F1.large.jpg\u0022 class=\u0022highwire-figure-link highwire-figure-link-newtab\u0022 target=\u0022_blank\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EOpen in new tab\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00222 last\u0022\u003E\u003Ca href=\u0022\/highwire\/powerpoint\/13169\u0022 class=\u0022highwire-figure-link highwire-figure-link-ppt\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EDownload powerpoint\u003C\/a\u003E\u003C\/li\u003E\u003C\/ul\u003E\u003C\/div\u003E\u003Cdiv class=\u0022fig-caption attrib\u0022\u003E\u003Cspan class=\u0022fig-label\u0022\u003EFigure 1.\u003C\/span\u003E \n            \u003Cp id=\u0022p-8\u0022 class=\u0022first-child\u0022\u003EPrimary Endpoint\u003C\/p\u003E\n         \u003Cq class=\u0022attrib\u0022 id=\u0022attrib-1\u0022\u003EAAD=antiarrhythmic drug.\u003C\/q\u003E\u003Cq class=\u0022attrib\u0022 id=\u0022attrib-2\u0022\u003EReproduced with permission from JS Steinberg, MD.\u003C\/q\u003E\u003Cdiv class=\u0022sb-div caption-clear\u0022\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cp id=\u0022p-9\u0022\u003EFreedom from AF\/AT was significantly (p\u0026lt;0.0001) greater for the reablation group. At the end of the study only 12% of patients in AAD group were free of AF\/AT compared with 60% in the reablation group (\u003Ca id=\u0022xref-fig-2-1\u0022 class=\u0022xref-fig\u0022 href=\u0022#F2\u0022\u003EFigure 2\u003C\/a\u003E).\u003C\/p\u003E\u003Cdiv id=\u0022F2\u0022 class=\u0022fig pos-float  odd\u0022\u003E\u003Cdiv class=\u0022highwire-figure\u0022\u003E\u003Cdiv class=\u0022fig-inline-img-wrapper\u0022\u003E\u003Cdiv class=\u0022fig-inline-img\u0022\u003E\u003Ca href=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/13\/3\/22\/F2.large.jpg?width=800\u0026amp;height=600\u0026amp;carousel=1\u0022 title=\u0022Secondary Endpoint: Freedom From AF\/AT\u0022 class=\u0022fragment-images colorbox-load\u0022 rel=\u0022gallery-fragment-images-483309561\u0022 data-figure-caption=\u0022Secondary Endpoint: Freedom From AF\/AT\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003E\u003Cimg class=\u0022fragment-image\u0022 alt=\u0022Figure 2.\u0022 src=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/13\/3\/22\/F2.medium.gif\u0022\/\u003E\u003C\/a\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cul class=\u0022highwire-figure-links inline\u0022\u003E\u003Cli class=\u00220 first\u0022\u003E\u003Ca href=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/13\/3\/22\/F2.large.jpg?download=true\u0022 class=\u0022highwire-figure-link highwire-figure-link-download\u0022 title=\u0022Download Figure 2.\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EDownload figure\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00221\u0022\u003E\u003Ca href=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/13\/3\/22\/F2.large.jpg\u0022 class=\u0022highwire-figure-link highwire-figure-link-newtab\u0022 target=\u0022_blank\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EOpen in new tab\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00222 last\u0022\u003E\u003Ca href=\u0022\/highwire\/powerpoint\/13170\u0022 class=\u0022highwire-figure-link highwire-figure-link-ppt\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EDownload powerpoint\u003C\/a\u003E\u003C\/li\u003E\u003C\/ul\u003E\u003C\/div\u003E\u003Cdiv class=\u0022fig-caption attrib\u0022\u003E\u003Cspan class=\u0022fig-label\u0022\u003EFigure 2.\u003C\/span\u003E \n            \u003Cp id=\u0022p-10\u0022 class=\u0022first-child\u0022\u003ESecondary Endpoint: Freedom From AF\/AT\u003C\/p\u003E\n         \u003Cq class=\u0022attrib\u0022 id=\u0022attrib-3\u0022\u003EAAD=antiarrhythmic drug; AF=atrial fibrillation; AT=atrial tachyarrhythmia.\u003C\/q\u003E\u003Cq class=\u0022attrib\u0022 id=\u0022attrib-4\u0022\u003EReproduced with permission from JS Steinberg, MD.\u003C\/q\u003E\u003Cdiv class=\u0022sb-div caption-clear\u0022\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cp id=\u0022p-11\u0022\u003EProgression to persistent AF was also significantly less (p\u0026lt;0.01) in the reablation group (4% of patients) versus 23% in the AAD group (\u003Ca id=\u0022xref-fig-3-1\u0022 class=\u0022xref-fig\u0022 href=\u0022#F3\u0022\u003EFigure 3\u003C\/a\u003E).\u003C\/p\u003E\u003Cdiv id=\u0022F3\u0022 class=\u0022fig pos-float  odd\u0022\u003E\u003Cdiv class=\u0022highwire-figure\u0022\u003E\u003Cdiv class=\u0022fig-inline-img-wrapper\u0022\u003E\u003Cdiv class=\u0022fig-inline-img\u0022\u003E\u003Ca href=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/13\/3\/22\/F3.large.jpg?width=800\u0026amp;height=600\u0026amp;carousel=1\u0022 title=\u0022Secondary Endpoint: Progression to Persistent AF\u0022 class=\u0022fragment-images colorbox-load\u0022 rel=\u0022gallery-fragment-images-483309561\u0022 data-figure-caption=\u0022Secondary Endpoint: Progression to Persistent AF\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003E\u003Cimg class=\u0022fragment-image\u0022 alt=\u0022Figure 3.\u0022 src=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/13\/3\/22\/F3.medium.gif\u0022\/\u003E\u003C\/a\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cul class=\u0022highwire-figure-links inline\u0022\u003E\u003Cli class=\u00220 first\u0022\u003E\u003Ca href=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/13\/3\/22\/F3.large.jpg?download=true\u0022 class=\u0022highwire-figure-link highwire-figure-link-download\u0022 title=\u0022Download Figure 3.\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EDownload figure\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00221\u0022\u003E\u003Ca href=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/13\/3\/22\/F3.large.jpg\u0022 class=\u0022highwire-figure-link highwire-figure-link-newtab\u0022 target=\u0022_blank\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EOpen in new tab\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00222 last\u0022\u003E\u003Ca href=\u0022\/highwire\/powerpoint\/13171\u0022 class=\u0022highwire-figure-link highwire-figure-link-ppt\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EDownload powerpoint\u003C\/a\u003E\u003C\/li\u003E\u003C\/ul\u003E\u003C\/div\u003E\u003Cdiv class=\u0022fig-caption attrib\u0022\u003E\u003Cspan class=\u0022fig-label\u0022\u003EFigure 3.\u003C\/span\u003E \n            \u003Cp id=\u0022p-12\u0022 class=\u0022first-child\u0022\u003ESecondary Endpoint: Progression to Persistent AF\u003C\/p\u003E\n         \u003Cq class=\u0022attrib\u0022 id=\u0022attrib-5\u0022\u003EAAD=antiarrhythmic drug; AF=atrial fibrillation.\u003C\/q\u003E\u003Cq class=\u0022attrib\u0022 id=\u0022attrib-6\u0022\u003EReproduced with permission from JS Steinberg, MD.\u003C\/q\u003E\u003Cdiv class=\u0022sb-div caption-clear\u0022\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cp id=\u0022p-13\u0022\u003EIn the AAD arm, 64% (n=49) of patients discontinued therapy because of intolerance and\/or inefficacy while 3% (n=2) patients experienced cardiac tamponade in the reablation arm.\u003C\/p\u003E\u003Cp id=\u0022p-14\u0022\u003EDr. Steinberg concluded by saying, \u201cReablation targeting restoration of PVI should be strongly considered when patients respond inadequately to the initial ablation.\u201d\u003C\/p\u003E\u003Cul class=\u0022copyright-statement\u0022\u003E\u003Cli class=\u0022fn\u0022 id=\u0022copyright-statement-1\u0022\u003E\u00a9 2013 MD Conference Express\u00ae\u003C\/li\u003E\u003C\/ul\u003E\u003Cspan class=\u0022highwire-journal-article-marker-end\u0022\u003E\u003C\/span\u003E\u003C\/div\u003E\u003Cspan id=\u0022related-urls\u0022\u003E\u003C\/span\u003E\u003C\/div\u003E\u003Ca href=\u0022http:\/\/mdc.sagepub.com\/content\/13\/3\/22.abstract\u0022 class=\u0022hw-link hw-link-article-abstract\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EView Summary\u003C\/a\u003E\u003C\/div\u003E  \u003C\/div\u003E\n\n  \n  \u003C\/div\u003E\n\u003C\/div\u003E\n  \u003C\/div\u003E\n\u003C\/div\u003E\n\u003C\/div\u003E\u003Cscript type=\u0022text\/javascript\u0022 src=\u0022http:\/\/mdc.sagepub.com\/sites\/all\/modules\/highwire\/highwire\/plugins\/highwire_markup_process\/js\/highwire_figures.js?nznzcd\u0022\u003E\u003C\/script\u003E\n\u003Cscript type=\u0022text\/javascript\u0022 src=\u0022http:\/\/mdc.sagepub.com\/sites\/all\/modules\/highwire\/highwire\/plugins\/highwire_markup_process\/js\/highwire_openurl.js?nznzcd\u0022\u003E\u003C\/script\u003E\n\u003C\/body\u003E\u003C\/html\u003E"}