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Validation of Accurate Commissural Alignment During Transcatheter Aortic Valve Implantation — ACA  

Severe Aortic Valve Stenosis Clinical Trial

Official title:
Clinical Validation and Prognostic Evaluation of Accurate Commissural Alignment During Transcatheter Aortic Valve Implantation

Clinical Trial Summary

Background: Transcatheter aortic valve replacement (TAVR) has become the preferred therapy for aortic stenosis. Given the growing life-expectancy, the risk of requiring coronary interventions or of developing prosthesis degeneration that could require TAVR-in-TAVR for its treatment progressively increases. During standard TAVI procedures the native and the prosthesis commissures are randomly aligned with misalignment in up to 70% of the cases. This might hinder coronary re-access in 18% of the cases, increase the risk of coronary obstruction during future TAVR-in-TAVR procedures, and has been associated to greater residual gradients. Methods: Although several techniques have been developed to increase the degree of commissural alignment, all are imperfect or imply manipulation of the system within the patient, potentially increasing the risk of complications. The research team developed a software based on computed tomography analysis that allows planification of accurate commissural alignment by inserting the delivery system in a patient-specific degree of rotation. Aim: The proponent team aimed to prospectively validate this methodology comparing a cohort of patients harboring TAVR with Acurate Commissural Alignment (ACA) vs. a control cohort with non-ACA standard technique, in order to determine benefits in terms of coronary re-access and clinical events (coronary events, valve degeneration, and TAVR-in-TAVR).

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT05097183
Study type Observational [Patient Registry]
Source Hospital Clínico Universitario de Valladolid
Contact Ignacio J Amat-Santos, PhD
Phone 983420000
Email icicor@icicor.es
Status Recruiting
Phase
Start date December 1, 2021
Completion date December 31, 2024
View Details
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