{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,4,24]],"date-time":"2025-04-24T04:58:20Z","timestamp":1745470700928,"version":"3.40.4"},"reference-count":16,"publisher":"S. Karger AG","issue":"2","license":[{"start":{"date-parts":[[2006,10,6]],"date-time":"2006-10-06T00:00:00Z","timestamp":1160092800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"},{"start":{"date-parts":[[2006,10,6]],"date-time":"2006-10-06T00:00:00Z","timestamp":1160092800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cardiology"],"published-print":{"date-parts":[[2007]]},"abstract":"<jats:p>&lt;i&gt;Background:&lt;\/i&gt; Transient high-degree atrioventricular (AV) block is a common cause of syncope in patients with bifascicular block (BFB) but the intermittent nature of AV block makes ECG documentation a challenge. A sensitive and safe tool to investigate BFB patients with syncope would be a bradycardia-detecting pacemaker, which provides a possibility of studying the time relation between the index syncopal episode and the development of high-degree AV block. &lt;i&gt;Methods:&lt;\/i&gt; Twenty-seven patients with BFB and syncope were studied prospectively. All patients received a single-chamber ventricular-based pacemaker with bradycardia-detecting ability. A bradycardia episode was defined as a heart rate of &lt;30 beats\/min lasting \u22676 s. &lt;i&gt;Results:&lt;\/i&gt; During a median follow-up of 60 months, a bradycardia event was detected in 14 patients (52%), of whom 13 also had documented high-degree AV block on ECG. The median time between the syncopal episode and the first pacemaker-detected bradycardia event was 5 months and after an additional median time of 6 months, high-degree AV block was documented on the ECG. In 10 of 13 patients (77%) high-degree AV block was documented within 24 months of the syncopal episode corresponding to an annual incidence of 19% during the first 2 years of follow-up in the study population. &lt;i&gt;Conclusion:&lt;\/i&gt; In this group of BFB patients a syncopal episode was highly predictive of the development of high-degree AV block within 24 months, justifying pacemaker therapy without prior ECG verification.<\/jats:p>","DOI":"10.1159\/000096038","type":"journal-article","created":{"date-parts":[[2006,10,10]],"date-time":"2006-10-10T15:18:07Z","timestamp":1160493487000},"page":"138-143","source":"Crossref","is-referenced-by-count":11,"title":["Time Relation between a Syncopal Event and Documentation of Atrioventricular Block in Patients with Bifascicular Block: Clinical Implications"],"prefix":"10.1159","volume":"108","author":[{"given":"Fariborz","family":"Tabrizi","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M\u00e5rten","family":"Rosenqvist","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lennart","family":"Bergfeldt","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anders","family":"Englund","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"127","published-online":{"date-parts":[[2006,10,6]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1111%2Fj.1540-8159.1983.tb04453.x"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1016%2F0033-0620%2884%2990009-4"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1016%2F0002-9149%2882%2990469-6"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1161%2Fhc4201.097837"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1016%2F0002-9149%2894%2990465-0"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1111%2Fj.1540-8159.1983.tb05291.x"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1136%2Fhrt.42.2.182"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1016%2F0002-8703%2883%2990089-3"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1016%2F0002-9149%2884%2990254-6"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1053%2Feupc.2002.0265"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1053%2Feupc.1998.0015"},{"key":"ref12","doi-asserted-by":"publisher","DOI":"10.3109%2F13814780309160411"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.1136%2Fhrt.35.5.516"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.1001%2Farchinte.137.8.1005"},{"key":"ref15","doi-asserted-by":"publisher","DOI":"10.1056%2FNEJM198207153070301"},{"key":"ref16","doi-asserted-by":"publisher","DOI":"10.1056%2FNEJMoa032423"}],"container-title":["Cardiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/96038","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/96038","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,24]],"date-time":"2025-04-24T02:48:33Z","timestamp":1745462913000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000096038"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2006,10,6]]},"references-count":16,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2007,8,1]]}},"URL":"https:\/\/doi.org\/10.1159\/000096038","archive":["Portico"],"relation":{},"ISSN":["0008-6312","1421-9751"],"issn-type":[{"type":"print","value":"0008-6312"},{"type":"electronic","value":"1421-9751"}],"subject":[],"published":{"date-parts":[[2006,10,6]]}}}