ACC 2019 | PARTNER 3: Low Risk TAVR vs. Surgery, Fewer Events per Year

Courtesy of Dr. Carlos Fava.

TAVR has largely been shown superior or non-inferior in high or intermediate risk patients.  Indeed, the development of new technologies, the more simplified procedure and the increased experience of operators and team have allowed these groups to benefit from this strategy.

ACC 2019 | PARTNER 3: TAVI en bajo riesgo con menos eventos al año que la cirugíaHowever, there is little evidence available on low risk patients, and it is based on first generation valves, such as the NOTION trial outcomes (though these were promising).

 

The PARTNER 3 trial was a randomized 1:1 multicentered trial, and which compared TAVR with a third-generation valve (Edwards SAPIEN 3) via transfemoral approach vs. surgery in low-risk patients (STS <4).


Read also: ACC 2019 | TAVR in Low-Risk Patients Is Noninferior.


Primary end point was all cause death, stroke or rehospitalization at one year.

 

It included 496 patients undergoing TAVR and 454 undergoing surgery.

 

Characteristics were similar: mean age was 73, they were mostly men, 30% were diabetic, STS was 1.9, EuroSCORE II 1.5, infarction rate was 5.7%, and stroke rate 4%. There were no frail patients, and the group undergoing TAVR had more cardiac failure FC III-IV.


Read also: TAVR in Low-Risk Patients with “Zero” Mortality and “Zero” Stroke.


The procedure was done under conscious sedation in 65.1% of cases in the TAVR group and 24.3% in the minimally invasive surgery group. Concomitant heart revascularization was 6.5% and 12.8% respectively.

 

At 30 days, the TAVR group presented lower stroke rate (0.6% vs. 24%, p=0.02), lower death or stroke rate (1% vs. 3.3% p=0.01), lower atrial fibrillation (5% vs. 39.5% P<0.001), shorter hospitalization (3 vs. 7 P<0.001) and lower risk of poor evolution (death and worse quality of life KCCQ), with no differences in vascular complication, need of pacemaker implantation or moderate to severe paravalvular leak.

 

At one-year follow, outcomes favored TAVR (8.5% vs. 15.1%; absolute difference, −6.6 percentage points; 95% confidence interval [CI], −10.8 to −2.5; p<0.001 for noninferiority; hazard ratio, 0.54; 95% CI, 0.37 to 0.79; p=0.001 for superiority). The presence of mild leaks was higher in TAVR, with no difference in moderate to severe leaks.

 

Conclusion

In patients with severe aortic stenosis presenting low risk of surgery, the composite of death, stroke or rehospitalization at one year was significantly lower with TAVR, compared against surgery.

 

Courtesy of Dr. Carlos Fava.

 

Original title: Transcatheter Aortic-Valve Replacement with a Balloon-Expandable Valve in Low-Risk Patients.

Reference: M.J. Mack, et al. N Engl J Med  DOI: 10.1056/NEJMoa1814052.

 

Partner-3

PARTNER-3-presentacion


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...