{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T15:51:09Z","timestamp":1790178669741,"version":"4.1.0"},"reference-count":21,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2009,12,23]],"date-time":"2009-12-23T00:00:00Z","timestamp":1261526400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cardiovasc electrophysiol"],"published-print":{"date-parts":[[2010,5]]},"abstract":"<jats:p>Ablation of Right Atrial Free Wall Flutter.<\/jats:p><jats:p> <jats:bold>\n            <jats:italic>Introduction:<\/jats:italic>\n          <\/jats:bold> Ablation for atypical atrial flutter (AFL) is often performed during tachycardia, with termination or noninducibility of AFL as the endpoint. Termination alone is, however, an inadequate endpoint for <jats:italic>typical<\/jats:italic> AFL ablation, where incomplete isthmus block leads to high recurrence rates. We assessed conduction block across a low lateral right atrial (RA) ablation line (LRA) from free wall scar to the inferior vena cava (IVC) or tricuspid annulus in 11 consecutive patients with atypical RA free wall flutter.<\/jats:p><jats:p> <jats:bold>\n            <jats:italic>Method and results:<\/jats:italic>\n          <\/jats:bold> LRA block was assessed following termination of AFL, by pacing from the ablation catheter in the low lateral RA posterior to the ablation line and recording the sequence and timing of activation anterior to the line with a duodecapole catheter, and vice versa for bidirectional block. LRA block resulted in a high to low activation pattern on the halo and a mean conduction time of 201 \u00b1 48 ms to distal halo. LRA conduction block was present in only 2 out of 6 patients after termination of AFL by ablation. Ablation was performed during sinus rhythm (SR) in 9 patients to achieve LRA conduction block. No recurrence of AFL was observed at long\u2010term follow\u2010up (22 \u00b1 12 months); 3 patients developed AF.<\/jats:p><jats:p> <jats:bold>\n            <jats:italic>Conclusion:<\/jats:italic>\n          <\/jats:bold> Termination of right free wall flutter is often associated with persistent LRA conduction and additional radiofrequency ablation (RFA) in SR is usually required. Low RA pacing may be used to assess LRA conduction block and offers a robust endpoint for atypical RA free wall flutter ablation, which results in a high long\u2010term cure rate. <jats:italic>(J Cardiovasc Electrophysiol, Vol. 21, pp. 526\u2010531, May 2010)<\/jats:italic><\/jats:p>","DOI":"10.1111\/j.1540-8167.2009.01660.x","type":"journal-article","created":{"date-parts":[[2009,12,23]],"date-time":"2009-12-23T18:32:30Z","timestamp":1261593150000},"page":"526-531","source":"Crossref","is-referenced-by-count":10,"title":["Linear Ablation of Right Atrial Free Wall Flutter: Demonstration of Bidirectional Conduction Block as an Endpoint Associated With Long\u2010Term Success"],"prefix":"10.1111","volume":"21","author":[{"given":"RICHARD L.","family":"SNOWDON","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"RICHARD","family":"BALASUBRAMANIAM","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"ANDREW W.","family":"TEH","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"HARIS M.","family":"HAQQANI","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"CAROLINE","family":"MEDI","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"RAPHAEL","family":"ROSSO","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"JITENDRA K.","family":"VOHRA","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"PETER 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