TAVR: Pre-Existing Complete Right Bundle Branch Block Is Associated with Mortality

Courtesy of Dr. Carlos Fava.

TAVR: Pre-Existing Complete Right Bundle Branch Block

The fact that the presence of a complete right bundle branch block (RBBB) increases the risk of bradycardia, high-grade atrioventricular block, and need for a permanent pacemaker (PPM) after TAVR is well-known.

 

The impact of pre-existing complete right bundle branch block has not been well-studied. 

 

This article analyses 749 patients enrolled in the OCEAN TAVI study, 102 (13.6%) of which presented pre-existing complete right bundle branch block. All patients received an Edwards SAPIENS XT valve.

 

No differences were observed among groups, except for a higher prevalence of cerebrovascular disease in patients in the pre-existing complete right bundle branch block group (21.6% vs. 13%; p = 0.02), who also presented a higher annular area.

 

After implantation, this group presented higher life-threatening bleeding (11.8 vs. 6%; p = 0.03) and a higher need for a pacemaker (17.6% vs. 2.9%).

 

Patients in the complete right bundle branch block group showed a trend toward lower survival rates at 30 days (96% vs. 98.6%; p = 0.09).

 

At the 492-day follow-up (325-660), the incidence of aortic regurgitation and ventricular function was similar among groups. The rates of all-cause death, cardiac death, and death from heart failure was higher for patients with complete right bundle branch block.

 

In the Kaplan-Meier analysis, the presence of complete right bundle branch block without pacemaker was associated with a higher rate of early cardiac death, and follow-up revealed higher mortality rates in patients with complete right bundle branch block and pacemaker.

 

In a multivariate analysis, pre-existing complete right bundle branch block was an independent predictor of mortality.

 

Conclusion

Patients with complete right bundle branch block showed an increase in the risk of cardiovascular mortality after TAVR, and patients with complete right bundle branch block without pacemaker presented a higher risk of early cardiac death. Patients with prior complete right bundle branch block should be carefully monitored after TAVR.

 

Editorial

The presence of complete right bundle branch block surely reflects high-risk conditions that have not been well studied yet.

 

We should carry out a thorough monitoring of this high-risk patient group and anticipate both the need for a pacemaker after discharge and the presence of heart failure. That way, we may be able to lower mortality rates.

 

Courtesy of Dr. Carlos Fava. Buenos Aires Favaloro Foundation, Argentina.

 

Original title: Pre-Existing Right Bundle Branch Block Increases Risk for Death After Transcatheter Aortic Valve Replacement with a Balloon-Expandable Valve.

Reference: Yusuke Watanabe et al, J Am Coll Cardiol Intv 2016;9:2210-6.


Subscribe to our weekly newsletter

Get the latest scientific articles on interventional cardiology

We are interested in your opinion. Please, leave your comments, thoughts, questions, etc., below. They will be most welcome.

More articles by this author

TCT 2024 | TRISCEND II

This randomized study included 400 patients; 267 were treated with EVOQUE valve and 133 with optimal medical treatment (OMT). After one-year follow-up, there were no...

TCT 2024 – ACCESS-TAVI: Comparing Percutaneous Access Closure Strategies After TAVI

Vascular access complications following transcatheter aortic valve implantation (TAVI) remain common. However, few studies compare vascular access closure methods.  Based on the CHOICE-CLOSURE and MASH...

TAVR in Young Low-Risk Patients

Transcatheter aortic valve replacement (TAVR) has established itself as an effective strategy for the treatment of severe aortic stenosis across different risk groups. While previous...

TAVR and Atrial Fibrillation: What Anticoagulants Should We Use?

The prevalence of atrial fibrillation (AF) in TAVR patients ranges from 15 to 30%, depending on series. This arrhythmia has been associated to higher...

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Related Articles

SOLACI Sessionsspot_img

Recent Articles

TCT 2024 | FAVOR III EUROPA

The study FAVOR III EUROPA, a randomized trial, included 2,000 patients with chronic coronary syndrome, or stabilized acute coronary syndrome, and intermediate lesions. 1,008...

TCT 2024 | TRISCEND II

This randomized study included 400 patients; 267 were treated with EVOQUE valve and 133 with optimal medical treatment (OMT). After one-year follow-up, there were no...

TCT 2024 – ACCESS-TAVI: Comparing Percutaneous Access Closure Strategies After TAVI

Vascular access complications following transcatheter aortic valve implantation (TAVI) remain common. However, few studies compare vascular access closure methods.  Based on the CHOICE-CLOSURE and MASH...