View clinical trials related to Aortic Aneurysm, Abdominal.
Filter by:The patients will be randomized into two groups of 100 subjects each one. One arm will be randomized to treatment with a negative topical pressure system (Sistema Prevena ™); while the other arm ("control group") will be randomized to treatment with standard medication with sterile gauzes and a TNT patch or medicated patch as normal traditional medication in use. The medications with a negative topical pressure system (Sistema Prevena ™) will be applied directly in the Operating Room. Thereafter the medication will be checked in the inpatient ward after 48 hours from the intervention, evaluating the possible absorption of exudate on the surface. If no absorption are detected within 48 hours, the medication won't be removed. The medication will be renewed in the 7th day (± 2 days) post-operative; and to follow every 7 (± 2 days) until the points are removed. If the wound continues to progress towards recovery, the protocol will continue until discharge and / or rehabilitation and / or surgery. For each evaluation the photograph of the medication must be taken (which will be deprived of all the identifying elements of the patient).
Purpose of the study is the evaluation of the applicability of the percutaneous technique through double Proglide and Pre-Close Technique to the treatment of complex aortic aneurysms with thoracic endoprosthesis (TEVAR), fenestrated or branched (F / B-EVAR) in which patient-related factors, the devices used or the procedure, could affect the performance.
The primary objective of this research project is development and validation of a new, non-contrast gated aortic (NCGA) computer tomography scan algorithm for screening of aortic aneurysm in the chest and abdomen in at risk patients. This study would initially be performed in patients with a known aneurysm and done in addition to their indicated surveillance CT scan.
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.
Fenestrated endovascular repair (FEVAR) is nowadays a recognized option to treat juxtarenal, pararenal or suprarenal abdominal aortic aneurysms in patients at high risk for conventional repair. The technique consists in deploying a custom-made stent-graft (SG) inside the patient aorta. Part of the customization involves cauterizing a hole in SG fabric and reinforcing it with a Nitinol stent ring, thereby creating a fenestration for each corresponding collateral artery. For this reason, preoperative planning is crucial to determine adequate positions of fenestrations, in order to obtain perfect alignment with the collateral arteries of the patient. Inadequate positioning may result in failure to catheterize a collateral artery and subsequent organ damage, increased catheterizing time, increased irradiation dose, endoleaks… The current process of fenestrations positioning for fenestrated anacondaTM SG involves: (i) anatomical measurements on patient preoperative CT-scan by case planners using dedicated sizing software; (ii) designing an initial custom device scheme with its positioned fenestrations, created by engineers with CAD software using the above cited measurements and (iii) validation of fenestrations position by in vitro testing using a SG prototype deployed inside a transparent anatomy model (3D-printed model of patient aorta and collateral arteries). The main limitations of this process are the costs and long SG delivery time.
Patients with abdominal aortic aneurysms (AAA) suitable for endovascular aortic repair (EVAR) with Treovance were eligible to participate. Main inclusion criteria were: age 18-85 years; infrarenal AAA without significant infrarenal or distal iliac landing neck calcification or thrombus formation; infrarenal or distal iliac landing neck size requirements specified in the instructions for use. Main exclusion criteria: dissection/ruptured aneurysm or prior AAA endovascular or surgical repair. The primary endpoints were standard EVAR criteria.
The aims of this study are to verify non-inferiority of magnetic resonance (MR) without contrast agent associated to color-Doppler ultrasound for the diagnosis of endoleaks after endovascular aortic repair (EVAR), to evaluate both the economical and biological cost-effectiveness of such diagnostic algorithm as an alternative to computed tomography (CT) with contrast agent, and to analyze its impact on both patients work-flow and infrastructure logistics
Blood supply to the sigmoid colon during open abdominal aortic aneurysm (AAA) repair is at risk. Ischemia of the sigmoid colon after AAA repair is potentially devastative. No reliable measures to prevent it are available and the underlying mechanisms are poorly understood. The aim of this study is to describe intraoperative perfusion patterns of the sigmoid colon during open AAA repair and their potential impact on postoperative outcome.
This study has two aims. 1. Deep venous thrombosis (DVT) is a common suspected medical condition. If it cannot be excluded clinically and using D-dimer, ultrasound examination is required. An option for traditional radiologist-performed ultrasound is a 2-point compression ultrasound (2-CUS). The safety of this technique is proven. However there does not exist any data on costs comparing traditional and 2-CUS pathways in primary health care. This study will evaluate the total cost of both pathways by conducting a cost-minimization analysis. It will also study the effect of a simple ultrasound education on the referrals to hospital due to suspected DVT. Hypothesis 1: Short education in ultrasound will reduce significantly referrals to hospital and save resources. 2. Length of stay (LOS) in emergency department (ED) is related to increased mortality, morbidity, prolonged hospital stay and probably patient satisfaction. LOS of patients with a point-of-care ultrasound (POCUS) performed by an emergency physician (EP) will be compared to those that have a radiology performed ultrasound examination. Further examination and accuracy of POCUS will be noted. Hypothesis 2: POCUS can shorten LOS significantly in selected clinical conditions
First aim: PARIS study The main aim of the current study is to determine the association between abdominal aortic aneurysm (AAA) progression and the evolution of proteases and cytokines levels.To achieve this aim, we will prospectively collect blood, aortic tissue, patient data, and imaging data. Aortic tissue will only be obtained when patients undergo conventional open repair. The other biomaterials will be collected during regular patient follow-up visits, with a maximum frequency of once per year. Second aim: Pearl AAA biobank For future research purposes, a new biobanking infrastructure will be created to collect and store additional blood and urine samples in a biobank. This biobank will be embedded within the infrastructure of the 'Parelsnoer Institute' (PSI) and will be called Pearl AAA. The Pearl AAA will be established in the extension of the PARIS study