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Relationship Between Hospital Surgical Aortic Valve Replacement Volume and Transcatheter Aortic Valve Replacement Outcomes Precision Medicine in TAVR: How to Select the Right Device for the Right Patient Coronary Access After TAVR Poor Long-Term Survival in Patients With Moderate Aortic Stenosis Meta-Analysis of Effectiveness and Safety of Transcatheter Aortic Valve Implantation Versus Surgical Aortic Valve Replacement in Low-to-Intermediate Surgical Risk Cohort Aortic Valve Stenosis Treatment Disparities in the Underserved JACC Council Perspectives 2020 ACC/AHA Guideline for the Management of Patients With Valvular Heart Disease: A Report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines Prognostic implications of baseline 6‐min walk test performance in intermediate risk patients undergoing transcatheter aortic valve replacement Comparison of safety and periprocedural complications of transfemoral aortic valve replacement under local anaesthesia: minimalist versus complete Heart Team Expert Recommendations on Cardiac Computed Tomography for Planning Transcatheter Left Atrial Appendage Occlusion
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Original Research2021 Jan 3.

JOURNAL：Clin Res Cardiol. Article Link

Predictors of high residual gradient after transcatheter aortic valve replacement in bicuspid aortic valve stenosis

G Bugani, M Pagnesi, D Tchetchè et al. Keywords: TAVR; balloon-expandable valve; bicuspid; high residual gradient; self-expandable valve;

ABSTRACT

OBJECTIVES - To define the incidence of high residual gradient (HRG) after transcatheter aortic valve replacement (TAVR) in BAVs and their impact on short term outcome and 1-year mortality.


BACKGROUND - Transcatheter heart valves (THVs) offer good performance in tricuspid aortic valves with low rate of HRG. However, data regarding their performance in bicuspid aortic valves (BAV) are still lacking.


METHODS - The BEAT (Balloon vs Self-Expandable valve for the treatment of bicuspid Aortic valve sTenosis) registry included 353 consecutive patients who underwent TAVR (Evolut R/PRO or Sapien 3 valves) in BAV between June 2013 and October 2018. The primary endpoint was device unsuccess with post-procedural HRG (mean gradient ≥ 20 mmHg). The secondary endpoint was to identify the predictors of HRG following the procedure.


RESULTS - Twenty patients (5.6%) showed HRG after TAVR. Patients with HRG presented higher body mass index (BMI) (30.7 ± 9.3 vs. 25.9 ± 4.8; p < 0.0001) and higher baseline aortic mean gradients (57.6 ± 13.4 mmHg vs. 47.7 ± 16.6, p = 0.013) and more often presented with BAV of Sievers type 0 than patients without HRG. At multivariate analysis, BMI [odds ratio (OR) 1.12; 95% confidence interval (CI) 1.05–1.20, p = 0.001] and BAV type 0 (OR 11.31, 95% CI 3.45–37.06, p < 0.0001) were confirmed as independent predictors of high gradient.


CONCLUSION - HRG following TAVR in BAVs is not negligible and is higher among patients with high BMI and with BAV 0 anatomy.


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