View clinical trials related to Aneurysm.
Filter by:After a subarachnoid haemorrhage, complications are common and increase the overall rate of disability and death from the condition. Despite some advances in preventing, detecting and treating these complications, the rates of complications and associated risks remain high. Further research into ways to reduce complications of subarachnoid haemorrhage. Transcutaneous vagus nerve stimulation (tVNS) is a technique where a small handheld device is attached to an earpiece which stimulates the nerves to the ear. This is given for short periods and may help improve blood flow and reduce inflammation in the brain. The intervention has been safely used and licensed in seizures, headache and severe depression. This study will look to see if it is feasible and tolerable to have tVNS twice daily for 5 days after subarachnoid haemorrhage, and whether it can help reduce the risk of complications from subarachnoid haemorrhage. The participant will be randomly allocated to receive either tVNS or a dummy intervention, known as sham. The researchers will collect some personal and clinical details such as diagnosis, medications, age, blood test results, as well as some details about the subarachnoid haemorrhage. The researchers will also complete brief questionnaires with the participant to assess symptoms. They will take measurements of heart rate, pupil response, and brain activity using a cap. The participant will then be randomly allocated to either receive the tVNS or sham intervention. Next, the research team will apply the earpiece to their ear twice a day for 45 minutes, for a total of 5 days. At the end of the 5-day study period, the intervention will be complete. The researchers will arrange a follow-up meeting on discharge and at 6 weeks, to assess the participants symptoms and recovery. Previous studies have shown that tVNS is safe and well tolerated, including a recent review of tVNS studies which evaluated the side effects experienced by 1322 patients receiving tVNS. The main side effects include localised tingling/numbness/pain/redness around the ear (17%), headaches (3%), dizziness (1%), facial droop (1%), nausea (1%), nasal discharge (2%). Rarely, palpitations or a slow heart rate may occur. They will continue to receive full medical treatment and observation alongside the study. They are free to withdraw from this study if they find it too demanding on top of their other activities.
The goal of this registry is to evaluate the semibranch in branched endovascular arotic repair, which is a new tool in endovascular branched aortic repair.
A prospective, multi-center, single-arm, open-label, observational post-market real-world registry. The expected duration of the study is 8 years (including up to 5-years' follow-up). Each subject will be followed in accordance with the standard of care (SOC) at each participating hospital.
It is currently unclear what activities aneurysms are involved in at the time of rupture. The aim of the study is to determine the activity performed at the time of aneurysm rupture.
Endovascular treatment has become one of the primary treatment methods for intracranial aneurysms. The unfavorable outcomes during follow-up included aneurysm recurrence and long-term incomplete-occlusion, which would bring a high risk of rebleeding and retreatment. Previous studies have tried to predict the outcomes of aneurysms following endovascular treatment based on aneurysm characteristics including morphology, embolization packing degree, etc, but the conclusion was inconsistent. Hemodynamics of aneurysms and parent artery played a greater role in predicting outcomes following endovascular treatments. Investigators also found that the outcomes were determined by many factors, in which the demography, clinical indicators, treatment methods, and material selection can not be ignored, and the mechanism of unfavorable imaging outcomes should be explored using large samples of clinical cases and numerous variable parameters. The pre-experiment of investigators confirmed that artificial intelligence technology can meet the calculation requirements for deep mining and analysis of large sample data. This study aims to use the deep learning model to identify relevant risk factors and weights, establish a stable and accurate prediction model, then incorporate the prospective study to verify the model. The results will be very helpful in accurately predicting the adverse outcomes such as recurrence and long-term non-occlusion after endovascular treatment and help to improve the therapeutic strategy and avoid risk factors. Besides, the occurrence of ischemic or hemorrhagic complications during follow-up may affect the final follow-up outcome, so the analysis was included as one of the outcome events to evaluate the prognosis after intervention.
Multicenter retrospective study including all consecutive patients treated by PMEG using a standard modification technique of Valiant Captivia (Medtronic, Minneapolis, MN-USA).
The aim of this study is to explore the genetic information associated with the development of TAA and aAD in individuals without history or syndromic features (Marfan syndrome, Ehlers-Danlos syndrome, Turner syndrome etc.) for aortic disease. For this purpose, whole genome sequencing will be performed in patients with documented aortic aneurysm or/and aortic dissection.
Analyzing the impact of surgery and adverse events (AEs) on patients' well-being is of paramount importance as it provides essential information for benefit-risk assessment. Current methods in outcome research are static, resource-intensive and subject to missing-data issues. Moreover, AEs are inconsistently reported using various grading systems that usually do not account for patients' subjective well-being. These are severe drawbacks for outcome research as it hinders monitoring, comparison, and improvement of treatment quality. The increasing use of smartphones offers unprecedented opportunities for data collection. We developed a free smartphone application to assess fluctuations of patients' well-being as a result of surgical treatment and possible AEs. The application is installed on each patient's smartphone and collects standardized data at defined timepoints before and after surgery (well-being, AE description and severity). By acquiring longitudinal patient-reported outcome before and after neurosurgical interventions, we aim to determine the regular postoperative course for specific surgical procedures, as well as any deviation thereof, depending on the occurrence and severity of AEs. We will evaluate the validity of existing AE classifications and, if necessary, propose a new patient-centered scheme. We hope that this will result in an increase in standardized reporting of patient outcome, and ultimately allow for evidence-based patient information and decision-making.
The adverse effects of overnight fasting before surgery have been well-documented in the contemporary literature. Still, due to the possibility of pulmonary aspiration of gastric contents, many clinicians worldwide still employ this practice. On the other hand, the benefits of preoperative oral carbohydrate loading (OCHL) have been shown in various patient groups. Studies examining the usefulness of preoperative OCHL in aortic surgery are lacking. In particular, no randomized control trials have specifically examined the impact of preoperative OCHL on the postoperative course in patients undergoing open abdominal aortic surgery.
Fenestrated endovascular aneurysm repair (FEVAR) is an established technique used to treat complex aortic aneurysms (TAAAs), with satisfactory early and midterm results. Postoperative renal function worsening is a common adverse event after FEVAR of complex aneurysms and is associated with prolonged hospital stay, higher morbidity, and long-term mortality in the peri-operative period and during follow-up. One of the more common causes of renal function worsening is contrast-induced nephropathy resulting from the use of iodinated contrast medium (ICM). Automated carbon dioxide (CO2) angiography has been proposed as an alternative to ICM for standard endovascular aneurysm repair (EVAR) in consideration of its absence of nephrotoxicity that can be of further help in preserving renal function. In adjunct, hybrid room and fusion imaging (FI) technologies are useful tools to reduce intraoperative contrast medium and fluoroscopy time. In literature there are few reports regarding the use of CO2 for fenestrated endografting repair of complex aortic aneurysms. The aim of the present study is to report the possibility to combine the use of automated CO2 angiographies and Fusion Imaging to obtain zero- or near zero- contrast FEVAR for complex aortic aneurysms.