Набор скоро начнётся NCT07475260

SVF-Treo Study: Influence of Cardiac and Respiratory Pulsatility Deformation

— Наблюдательное Abdominal Aortic Aneurysm Endovascular Abdominal Aortic Aneurysm Repair Fenestrated Endovascular Aortic Repair

Ориентир для пациента и семьи

Простыми словами

Автоматическая сводка по структурированным данным реестра. Она помогает сориентироваться, но не заменяет официальный протокол или оценку врача.

Что изучают: В протоколе указаны: CT scan.
Кому может быть актуально: Состояния в реестре: Abdominal Aortic Aneurysm, Endovascular Abdominal Aortic Aneurysm Repair, Fenestrated Endovascular Aortic Repair. Базовые параметры: от 65 лет · Все.
Что важно проверить: Возраст, диагноз и пол — только базовые ориентиры. Предыдущее лечение, анализы и другие обязательные условия указаны ниже в критериях участия.
Где проводится: Нидерланды
Следующий шаг: Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →

Не всё понятно в терминах? Прочитайте наш гид для пациентов →

Официальное название

Investigating the Influence of Cardiac and Respiratory Pulsatility Deformation on the Abdominal Aorta Before and After the Implantation of the Fenestrated TREO.

Обзор

This is a national multicenter study with 25 patients with a complex AAA undergoing endovascular repair with the Fenestrated TREO™ stent graft. ECG and respiratory-gated CT scans will be performed pre-operatively, at discharge, after 6 months, and after 12 months follow up. If stent movement is still present in after 12 months, then another scan will be taken at 24 months. To include respiratory gated with the ECG-gated, patients will undergo ECG-gated CT scan during an inspiration breath-hold as well as an expiration breath-hold. This double gated CT scans will allow us to analyse the movement of the stent graft caused by the cardiac cycle and respiratory cycle. The duration of this study is 2.5 years.

Подробное описание

Fenestrated endovascular aortic repair (F-EVAR) uses stent grafts with customized fenestrations to treat complex aortic aneurysms in patients at risk of aneurysm rupture. The long-term durability of these stent grafts is hindered by complications requiring reintervention. Especially the perirenal fixation and sealing area is of vital importance. The customized fenestrations in the stent graft are cannulated with stents into the renal and/or mesenteric arteries, challenging the perirenal fixation. Once implanted, the aorta dynamics and the device affect each other in ways that are currently not understood. Pre and post- operative imaging of aortic aneurysm is routinely performed using computerized tomographic angiography (CTA). However, these static techniques do not consider the aorta dynamics. Consequently, our understanding of the dynamic behavior of the stent graft and stented target vessels is limited. ECG-gated CTA is a technique that takes the patient's heart cycle into account and taking the ECG-gated CTA during inspiration and during expiration takes the patients respiratory motion into account, creating a double gated CT scan. This double gated CTA enables studying the motion of aorta and implanted devices.

Вмешательства

Диагностический тест CT scan
ECG-gated CT is a technique in which the ECG of the patient is measured during scanning. This can be used during scanning for instance to apply the most dose in the diastolic phase of the cardiac cycle (where motion is lowest), a technique known as prospective gating. In retrospective gating, the ECG is used to split the data in bins corresponding to a specific phase of the cardiac cycle, and creating one volumetric image per bin. To incorporate the respiratory cycle with the ECG-gated CT scan,

Первичные конечные точки

Proportion of patients who experience treatment success. [Срок оценки: One year post procedure.]

Критерии участия

Критерии включения

Asymptomatic AAA,
Age > 65
Indication for AAA treatment according to standard practice
Anatomic suitability for the fenestrated Treo stent graft
At least one stentable main renal artery and one other stentable renal or mesenteric artery
Being able to hold their breath for 10 seconds.