{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,27]],"date-time":"2026-10-27T19:35:11Z","timestamp":1793129711191,"version":"4.5.0"},"reference-count":51,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"9","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["JAHA"],"published-print":{"date-parts":[[2024,5,7]]},"abstract":"<jats:sec sec-type=\"background\" xml:lang=\"en\">\n            <jats:title>Background<\/jats:title>\n            <jats:p xml:lang=\"en\">A delayed and recurrent complete atrioventricular block (CAVB) is a life\u2010threatening complication of transcatheter aortic valve replacement (TAVR). Post\u2010TAVR evaluation may be important in predicting delayed and recurrent CAVB requiring permanent pacemaker implantation (PPI). The impact of new\u2010onset right bundle\u2010branch block (RBBB) after TAVR on PPI remains unknown.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec xml:lang=\"en\">\n            <jats:title>Methods and Results<\/jats:title>\n            <jats:p xml:lang=\"en\">\n              In total, 407 patients with aortic stenosis who underwent TAVR were included in this analysis. Intraprocedural CAVB was defined as CAVB that occurred during TAVR. A 12\u2010lead ECG was evaluated at baseline, immediately after TAVR, on postoperative days 1 and 5, and according to the need to identify new\u2010onset bundle\u2010branch block (BBB) and CAVB after TAVR. Forty patients (9.8%) required PPI, 17 patients (4.2%) had persistent intraprocedural CAVB, and 23 (5.7%) had delayed or recurrent CAVB after TAVR. The rates of no new\u2010onset BBB, new\u2010onset left BBB, and new\u2010onset RBBB were 65.1%, 26.8%, and 4.7%, respectively. Compared with patients without new\u2010onset BBB and those with new\u2010onset left BBB, the rate of PPI was higher in patients with new\u2010onset RBBB (3.4% versus 5.6% versus 44.4%,\n              <jats:italic>P<\/jats:italic>\n              &lt;0.0001). On post\u2010TAVR evaluation in patients without persistent intraprocedural CAVB, the multivariate logistic regression analysis showed that new\u2010onset RBBB was a statistically significant predictor of PPI compared with no new\u2010onset BBB (odds ratio [OR], 18.0 [95% CI, 5.94\u201354.4]) in addition to the use of a self\u2010expanding valve (OR, 2.97 [95% CI, 1.09\u20138.10]).\n            <\/jats:p>\n          <\/jats:sec>\n          <jats:sec xml:lang=\"en\">\n            <jats:title>Conclusions<\/jats:title>\n            <jats:p xml:lang=\"en\">Patients with new\u2010onset RBBB after TAVR are at high risk for PPI.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1161\/jaha.123.032777","type":"journal-article","created":{"date-parts":[[2024,4,19]],"date-time":"2024-04-19T11:13:11Z","timestamp":1713525191000},"update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":11,"title":["Impact of New\u2010Onset Right Bundle\u2010Branch Block 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