Why the study?
What are the outcomes and pacemaker dependency rates in TAVR recipients without prior conduction disturbances who develop intraprocedural high-degree AV block or complete heart block?
What are the outcomes and pacemaker dependency rates in TAVR recipients without prior conduction disturbances who develop intraprocedural high-degree AV block or complete heart block?
Intraprocedural high-degree AV block or complete heart block during TAVR in patients without prior conduction disturbances occurs in 7.4% of cases and is associated with high pacemaker dependency and reduced LVEF at 1 year.
May warrant enhanced post-TAVR monitoring for persistent block; observational data leaves open prospective trials on prevention and LVEF effects.
In TAVR recipients with no prior intraventricular conduction disturbances, intraprocedural-HAVB/CHB occurred in 7.4% of cases. HAVB/CHB was persistent in most cases and determined a high rate of PPI post-TAVR. Very high VPR at 1- and 12-month follow-up were observed, which in turn was associated with a negative effect on LVEF. These results support early PPI and close follow-up in patients developing intraprocedural-PHAVB/CHB.
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Junquera et al. (2019) studied this question.
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