View clinical trials related to Aneurysm.
Filter by:Thoracic endovascular repair (TEVAR) and transcatheter aortic valve implantation (TAVI) are standard of care procedures to treat thoracic aortic aneurysm or severe aortic stenosis, respectively. Both procedures have a high risk of stroke and silent infarction. Gas has been detected in the cerebral vasculature during these procedures and associated with DWI positive lesions on MRI. The hypothesis is that air emboli contribute to stroke and silent infarction. The investigators propose addressing air emboli by flushing the device with carbon dioxide prior to flushing with saline. This is a pilot study comparing standard saline flush alone to carbon dioxide flushing with saline flush.
Endovascular abdominal aortic aneurysm repair (EVAR) aims to reduce the risk of aneurysm (AAA) rupture by reducing the blood pressure transmitted to the wall of the aneurysm. Aneurysms that remain pressurized despite EVAR may continue to grow, therefore requiring additional surgical interventions. The purpose of this study is to infer the reduction of pressure transmitted to the aneurysm wall by using intraoperative ultrasound ('M-Mode') to assess the pulsatility of the aneurysm wall. The hypothesis is that intraoperative reduction in aneurysm wall pulsatility after EVAR will correlate with improved aneurysm sac size reduction.
There is a relationship between aerobic fitness and survival both with and without surgery. Some patients can improve their aerobic fitness with a structured exercise programme but currently it is not know how much this could change predicted survival for patients with an abdominal aortic aneurysm, or how long this change can be maintained. Survival can be predicted after planned abdominal aortic aneurysm (AAA) surgery using physical fitness measured with a cardiopulmonary exercise test. The researchers have validated this in a published peer reviewed multicentre study. In this study the patient's fitness will be measured before and after a structured exercise programme and assess if there is any change in their predicted survival. The primary objective of the study is to measure the change in predicted survival for abdominal aortic aneurysm surgery after a structured exercise programme. In addition the patients are asked to complete the following questionnaires:- EQ-5D-5L, Hospital Anxiety and Depression Scale (HADS) before and after the exercise programme.
This study is intended to show that the application of the Accero® (heal) stent is safe within the given indication.
This study will evaluate the feasibility to predict the prognosis of IDA with IMH by DCE-MRI and provide theoretical basis for the prognosis and intervention of the disease.
Intracranial bifurcation aneurysms are commonly repaired with surgical and with endovascular techniques. Wide-necked bifurcation aneurysms (WNBA) are a difficult subset of aneurysms to successfully repair endovascularly, and a number of treatment adjuncts have been designed. One particularly promising innovation is the WEB (Woven EndoBridge), which permits placement of an intra-saccular flow diverting mesh across the aneurysm neck, but which does not require anti-platelet agent therapy. Currently, which treatment option leads to the best outcome for patients with WNBA remains unknown. There is a need to offer treatment with the WEB within the context of a randomized care trial, to patients currently presenting with aneurysms thought to be suitable for the WEB.
Background and rationale of the study: Patients undergoing non-cardiac major surgery show a perioperative cardiac risk and postoperative complications, that can be stratified based on parameters linked to patient's conditions and to surgery types. An accurate identification of this risk could offer numerous advantages for these patients, who's 30-day mortality is around 2%. The identification of the correct risk could lead to a better pre- and postoperative management, that could guarantee a better surgery outcome and a faster postoperative recovery. To this day there is no perfect method to correctly estimate this risk. Various studies show that high BNP levels are linked to cardiac events at 30 and 180 days. Further investigations identify different groups, at low, intermediate and high risk, based on BNP levels. BNP is released by ventricular myocytes in response to a wall distress, due to an increased volume, pressure or myocardial ischemia. So BNP plasma levels could be used as a prognostic and diagnostic marker, improving the cardiac risk stratification in patients undergoing surgery and a much more precise management. This study is determined to do an evaluation of the correlations between pre- and postoperative BNP levels and the incidence of cardiac events in patients undergoing major vascular surgery.
The study is non-randomized, multicenter international safety, performance and clinical benefit outcome assessment of ANEUFIX to treat patients with isolated type II endoleak in the presence of a growing AAA-sac following an EVAR procedure more than 6 months ago.
SASH Trial is a multicenter, prospective, open and randomized 1:1 study. The aim of this study is to evaluate the efficacy of TDM-621(Three-D Matrix- 621) (PuraStat®) on hemostasis of ascending aortic surgery. The TDM-621 is a topic hemostatic product. When in contact with blood it allowed to cover the sutures improving the hemostasis. The hypothesis is that the use of TDM-621 may reduce bleeding and the need for blood transfusion of patients undergoing ascending aortic surgeries. It will include 200 consecutive patients randomized to receive TDM-621 or regular procedure, performed in 5 different centers.
This study evaluates the effectiveness of intravitreal Aflibercept (IVA) injection therapy, combined with peripheral laser photocoagulation, in the treatment of macular edema caused by Leber's miliary aneurysm. We believe that our study makes a significant contribution to the literature because to our knowledge, it is the first to report cases, in which IVA injection therapy was used to treat this condition.