Arterial Stiffness, Blood Pressure and Cardiac Output Study

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-04-24

Study Completion Date

2019-12-31

Brief Summary

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Comparison of non-invasively obtained central blood pressure using SphygmoCor and invasively recorded central blood pressure in patients with an AAA that will be treated with EVAR.

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Detailed Description

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Primary objective of the first study: validation of non-invasive central pressure parameters in patients treated with EVAR against invasive measurements.

Objectives of subsequent studies: Do non-invasive central parameters change over time after EVAR? What is the influence of intraluminal thrombus (presence, amount, configuration) on non-invasive central pressure parameters (and other obtained parameters of arterial stiffness)? Prospective study with consecutive, eligible subject enrollment. All subjects will undergo the Endovascular Aneurysm repair procedure with an endovascular device. Subjects will be followed procedurally, at 6-8 weeks and 1 year post implantation.

This study is a collaboration of the following departments of the Vascular Center in the Rijnstate Hospital Arnhem: Vascular Surgery, Interventional radiology, Internal Vascular Medicine, Cardiology.

Patients diagnosed with an abdominal aortic or aortoiliac aneurysm who are considered candidates for endovascular repair and who meet the study eligibility criteria may be screened for enrollment in the study. Up to 20 subjects will be enrolled .

Pre-procedural high resolution, contrast-enhanced CT scan evaluation to determine anatomical eligibility for enrollment will be performed within three months of the study procedure, according to standard care. Following EC/IRB approval of the study and the written informed consent form, patients will be screened for eligibility. Following informed consent, clinical characteristics will be reported (from hospital records). Per-procedural PWA measurements will be performed simultaneously with intravascular pressure measurements pre-implantation and after completion of the endocasular implantation. Subjects will be followed at 30 days and 1 year post-implantation.

Conditions

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Infrarenal Abdominal Aortic Aneurysm

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

prospective,multidisciplinary single center study

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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elective EVAR patients

Elective EVAR patients will be included in one arm only

Group Type EXPERIMENTAL

Pulse wave analyses; central blood presaure parameters

Intervention Type DIAGNOSTIC_TEST

Pulse wave analyses; central blood presaure parameters

Interventions

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Pulse wave analyses; central blood presaure parameters

Intervention Type DIAGNOSTIC_TEST

Other Intervention Names

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Pulse wave velocity

Eligibility Criteria

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Inclusion Criteria

1. Male or female at least 18 years old;
2. Informed consent form understood and signed and patient agrees to follow-up visits;
3. Have a infrarenal abdominal aortic aneurysm (AAA) with maximum sac diameter ≥ 5.5cm, or an AAA ≥ 4.5 cm which has increased by \> 1.0 cm in the past year with a scheduled endovascular intervention

Exclusion Criteria

1. Life expectancy \< 2 years;
2. Psychiatric or other condition that may interfere with the study;
3. Participating in another clinical study, interfering on outcomes;
4. Irregular pulse;
5. Presence of extensive peripheral arterial disease (ABI \< 0.9 or obstruction validated on imaging); dated less than 3 months prior to treatment
6. Ruptured, leaking or mycotic aneurysm;

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No