Key result
New-onset RBBB post-TAVR may indicate severe conduction block leading to Adams-Stokes syndrome and PPMI.
Why the study?
Less attention has been paid to the clinical values and association of new-onset RBBB with PPMI after TAVR.
Does new-onset right bundle branch block post-TAVR predict the need for permanent pacemaker implantation?
Does new-onset right bundle branch block post-TAVR predict the need for permanent pacemaker implantation?
New-onset right bundle branch block post-TAVR may be an important clinical predictor for severe conduction block requiring permanent pacemaker implantation.
May warrant closer conduction monitoring post-TAVR; leaves open whether it should alter pacing thresholds or device selection.
Transcatheter aortic valve replacement (TAVR) is a revolutionized treatment for severe aortic valve stenosis. Although new and improved TAVR devices are constantly being developed, cardiac conduction abnormalities post-TAVR requiring permanent pacemaker implantation (PPMI) still occur frequently. Previously, pre-existing right bundle branch block (RBBB) has been shown to be predictive of PPMI after TAVR, while occurrence of new left bundle branch block (LBBB) was associated with a higher rate of PPMI. However, less attention has been paid to the clinical values of new-onset RBBB post-TAVR. To our knowledge, this is the first report focus on the association of new-onset RBBB and PPMI after TAVR. Sometimes only changes in the right bundle branch can be detected, but the patient may have co-existing severe conduction block at this time, which caused adverse events including Adams-Stokes syndrome. New-onset RBBB post-TAVR may also have important clinical implications.
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Wang et al. (2022) studied Severe aortic valve stenosis. New-onset right bundle branch block (RBBB) was evaluated on Permanent pacemaker implantation (PPMI). New-onset right bundle branch block post-TAVR may indicate co-existing severe conduction block leading to adverse events such as Adams-Stokes syndrome.
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