NCT05468762

Brief Summary

Transcatheter aortic valve implantation (TAVI) is an established treatment modality in patients ≥ 75 years old with severe symptomatic aortic stenosis after Heart Team evaluation (1). Patients with high/prohibitive surgical risk and life expectancy ≥ 1 years are candidates for TAVI according to the current guidelines (1). Nowadays is expected a progressive increase of TAVI procedures, in relationship to aging and increased life expectancy (2). Percutaneous, particularly trans-femoral, access represents the best choice in the vast majority of TAVI patients, because of its minimal invasiveness and reduced mortality, due to lower rates of periprocedural bleedings and strokes (3,4). Technical advancements, improving expertise and simplification of procedure, lead to reduction of vascular complications, still significant, and linked with worst patients' outcome (5). Some factors are considered to increase the risk of vascular complication: patient related and procedural related factors. Patient-related factors include female gender, severe vascular calcification and peripheral vascular disease. Procedural related risk factors consist of increased sheath to femoral artery ratio (SFAR) and TAVI centre experience/case load (5). Considering the last 10 years progress in techniques, devices technology and clinical outcome, a new Valve Academic Research Consortium (VARC) consensus manuscript was published to provide an update of these emerging clinical and research issues in aortic valve therapy (6). Arterial stiffness is a physiologic phenomenon occurring with age and involving changes in extracellular matrix components of the arterial wall. Particularly, the elastin fibres undergo proteolytic degradation and chemical alteration, with consequent increased production of collagen, by vascular smooth muscle cells with progressive arterial wall stiffening (7). Arterial stiffness appears to be accelerated under pathological conditions, such as hypertension, smoking, diabetes mellitus (DM) and kidney disease (8), furthermore has been shown to have two-fold higher incidence in women compared to men (9). TAVI patients have higher median age and comorbidities, directly correlated with arterial stiffness (7), and female gender is a considered high-risk feature for vascular complication independently from SFAR and atherosclerosis (5). Arterial stiffness induces progressive reduction of tensile strength, elongation and burst pressure with consequent drop of vessels breakpoint (10), that could be associated with vascular complications. Particularly, femoral artery stiffness could predispose to microlesions formation at TAVI device access, inducing vascular closure devices failure and vascular complications. Furthermore, vessel rigidity can be associated with a higher resistance during TAVI device delivery and increased probability of vessels injury (especially in presence of tortuosity and small artery diameters). Nowadays, there are no studies evaluating the relationship between arterial stiffness and TAVI vascular complications. The aim of this study is to evaluate the relationship between arterial stiffness and TAVI vascular complications, defining a new predictor of vascular complications in order to give more accurate information for procedures planning.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
120

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Aug 2022

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 19, 2022

Completed
2 days until next milestone

First Posted

Study publicly available on registry

July 21, 2022

Completed
11 days until next milestone

Study Start

First participant enrolled

August 1, 2022

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2023

Completed
Last Updated

July 21, 2022

Status Verified

July 1, 2022

Enrollment Period

1 year

First QC Date

July 19, 2022

Last Update Submit

July 19, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • The primary study endpoint is a composite of: any life-threatening, major or minor bleeding complication, or any major or minor vascular access complication according to VARC 3 criteria (6).

    The primary study endpoint is a composite of: any life-threatening, major or minor bleeding complication, or any major or minor vascular access complication according to VARC 3 criteria (6).

    12 months

Interventions

Transcatheter aortic valve implantation (TAVI) is an established treatment modality in patients ≥ 75 years old with severe symptomatic aortic stenosis after Heart Team evaluation

Eligibility Criteria

Age75 Years+
Sexall
Age GroupsOlder Adult (65+)
Sampling MethodProbability Sample
Study Population

patients ≥ 75 years old with severe symptomatic aortic stenosis after Heart Team evaluation

You may qualify if:

  • Age ≥ 18 years
  • Patients eligible for transfemoral TAVI.

You may not qualify if:

  • Conditions determining inadequate windows for evaluation of pulse wave doppler both at aortic arch and femoral artery level.
  • CT scan not performed.
  • Planned surgical access.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

A.O. Ordine Mauriziano

Torino, 10131, Italy

Location

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Dr. Giuseppe Musumeci

Study Record Dates

First Submitted

July 19, 2022

First Posted

July 21, 2022

Study Start

August 1, 2022

Primary Completion

August 1, 2023

Study Completion

August 1, 2023

Last Updated

July 21, 2022

Record last verified: 2022-07

Locations