View clinical trials related to Aortic Aneurysm.
Filter by:This study aims to identify the molecular genetic causes of the variability in development of calcific aortic valve disease in bicuspid and tricuspid aortic valves and their associated aortic dilation.
EndoAnchors (Heli-FX device, Medtronic, Santa Rosa) have beed described to improve fixation (mimicking an open surgical anastomosis) during or after EVAR/TEVAR. The investigators want to describe the outcomes of all consecutive patients treated with this device (retrospective and prospective data - observational study)
The Montalcino Aortic Consortium (MAC) will provide the infrastructure to assemble large cohorts of patients with mutations in known heritable thoracic aortic disease (H-TAD) genes, define the phenotype associated with these genes, and determine genetic and environmental modifiers of H-TAD.
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.
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.
Thoracic endovascular aortic repair (TEVAR) for disease involving the aortic arch remains complex and challenging due the angulation and tortuosity of the arch and its peculiar biomechanical environment. Currently, TEVAR planning is based on the analysis of anatomical features by means of static imaging protocols. Such an approach, however, disregards the impact of pulsatile forces that are transmitted as migration forces on the terminal fixation sites of the endograft, and may jeopardize the long-term clinical success of the procedure. Hence,the investigators aim to assess the migration forces acting on different proximal landing zones of the aortic arch by computational modeling, and develop in silico patient-specific simulations that can provide a quantitative evaluation of the stent-graft performance. Study's results are expected to provide valuable insights for proper proximal landing zone and stent-graft selection during TEVAR planning, and ultimately improve postoperative outcome.