Valvular & structural heart disease

Differences in Severity and Prognosis Between Bicuspid and Tricuspid Severe Aortic Stenosis

JACC AdvPublished Post hoc analysis of the CURRENT aortic stenosis (AS) registry

Primary result · Five-year all-cause mortalityResult — go to the resultHazard ratio 0.46 95% CI 0.28–0.77

Authors' conclusion

Patients with BAV have unique hemodynamic characteristics distinct from TAV.

Study context

Population
Patients with severe AS enrolled in the CURRENT AS registry
Participants
3,815 patients
Comparison
Bicuspid aortic valve (BAV) vs tricuspid aortic valve (TAV)
Primary endpoint
All-cause mortality
Follow-up
5 years; median 36.9 months (IQR: 18.2-51.8)
Methodological detailspropensity-score matched sensitivity analysis
  • Propensity-score matched sensitivity analysis

Primary result

Five-year all-cause mortality · 5 years

Hazard ratio

0.46

95% CI 0.28–0.77

P = 0.003

By group

BAVvs TAV
HR 0.46 (95% CI 0.28–0.77); P = 0.003

As reported in the abstract

Further findings

Maximal aortic jet velocity

P < 0.001

Mean pressure gradient

P < 0.001

Aortic valve area

P = 0.288

Discordant severity grading

P < 0.001

Aortic valve area for equivalent jet velocity and mean gradient (linear regression)

Larger aortic valve area in BAV for equivalent maximal aortic jet velocity and mean pressure gradient

Original publication

Differences in Severity and Prognosis Between Bicuspid and Tricuspid Severe Aortic Stenosis. JACC Adv. Published 31 October 2025. doi:10.1016/j.jacadv.2025.102285

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