View clinical trials related to Aortic Aneurysm.
Filter by:The purpose of this study is to evaluate the reduction of the Abdominal Aortic Aneurysm (AAA) annual growth rate in patients who switch from smoking cigarettes to using IQOS as compared to patients who continue to smoke cigarettes. The study also aims to provide context to the scale of reduction in the growth rate, by comparing the AAA annual growth rates for continuing to smoke and switching to IQOS with the AAA annual growth rate in smokers who had stopped smoking. The study will further evaluate the effects of switching to IQOS on co-morbidities observed in AAA patients that are related to smoking as well as to assess the effects on relevant clinical risk endpoints linked to smoking related diseases.
Aorta Abdominal aneurism (AAA) is a chronic degenerative disorder leading to the dilation and eventually to the rupture of the aortic wall. The pathology presents risk factors such as aging, atherosclerosis, male gender, cigarette smoking, pulmonary emphysema and high blood pressure.The vascular wall destruction is characterized by a remodeling of the extracellular matrix (ECM), the presence of an inflammatory infiltrate of macrophages and lymphocytes associated increase in production of MMPs. A similar destruction mechanisms is found in periodontitis a chronic inflammatory diseases characterized by gram-negative bacteria species that are able to degrade ECM of the tooth supporting tissues and leading finally to tooth loss .Moreover, relationships between periodontitis and cardiovascular disease have already been demonstrated. These associations are considered to be initiated by transient or prolonged bacteremia due to dissemination of oral bacteria or their products into the bloodstream . The periopathogens, more specifically Porphyromonas gingivalis (Pg), were observed in atherosclerosis and aneurysm specimens as well as in coronary heart disease and endocarditis The association between periodontitis and Abdominal Aortic Aneurysms (AAA) has not often been studied especially from a clinical aspect. The mechanisms that induce the initiation, the development or the recurrence and the rupture of AAA after a period of quiescence not well studied and are therefore still unknown. The aim of this clinical observational case controlled study is to search for a possible relationship between periodontal disease and rapid growth of AAA. Patients presenting stable or unstable AAA will be screened for the degree of periodontitis, for the type of oral microbiology and periodontopathogen markers present in the blood stream.
As potential biomarkers of pressure-related aortic damage, matrix metalloproteinases (MMP) have been implicated in the pathogenesis of aortic aneurysm because of the important role they play in connective tissue homeostasis. In particular, a significant reduction in initially elevated serum MMP - 9 concentrations, compared with healthy controls, demonstrated after the aortic repair in patients with abdominal aortic aneurysm implies MMPs pivotal role in aortic aneurysms. Besides, due to an active degradation and repair processes taking place in the vascular wall governed by the balance between MMP enzymes and their inhibitors, MMP - 9, expression of which is predominantly associated with disruption of aortic elastic fibers, can also be detected in the serum of healthy subjects. Indeed, mechanical stress-induced upregulation of genes and their products stimulate MMP expression in the vascular wall, which is responsible for extracellular matrix degradation. Herein, it was hypothesized that reducing the acceleration rate of aortic pressure (aortic peak dP/dt) may decrease the mechanical stretch on the aortic wall which, may in turn, reduce the expression and serum levels of MMP-9.
Patients having a planned open surgery of thoracoabdominal aortic aneurysms and enrolled in the study will be randomized the day of the surgery in 2 groups: - Arm 1 : Patients with aortic clamping with pre-conditioning - Arm 2 : Patients with aortic clamping without pre-conditioning Patients will be then followed, during 60 days after surgery.
The objective of this post-market clinical follow-up study is to evaluate the clinical outcomes of patients receiving PhotoFix as a patch within a vascular repair or reconstruction procedure.
The primary outcome of this study was the evaluation of the efficacy of TAP block on pain intensity following open abdominal aortic surgery.
Populational abdominal aortic aneurysm (AAA) pilot screening programme performed by duplex ultrasonography in population born in 1952 in health areas depending from Hospital de la Santa Creu i Sant Pau in Barcelona. Descriptive data analysis and cost-effectiveness study will be performed.
Although open repair (OR) is currently reported as the gold standard of treatment, fenestrated endovascular repair (FEVAR) is being increasingly applied for the treatment of proximal abdominal aortic aneurysms (p-AAA) such as hostile-necked, juxta-, para- and supra-renal aortic aneurysms.1 Nevertheless, advantages of FEVAR in terms of lowering postoperative complications, should be balanced with the need of both complex device configurations and operators with large endovascular expertise. The aim of this study is to report the experience of Data from patients treated will be prospectively collected. All post-operative results will be recorded. Major adverse event (MAE) are defined as the presence of one of the following: all-cause mortality, bowel ischemia, myocardial infarction, paraplegia, respiratory failure, stroke and renal insufficiency. Furthermore, the pre-operative contrast-enhanced computed tomography scans (CTA) of all patients, stored in the hospital PACS, will be analyzed on the dedicated workstation with OsiriX software (Pixmeo sarl, Bernex, Switzerland) currently employed in our Unit for imaging assessment. Patients will undergo standard control with the execution of a Doppler ultrasound and creatinine serum levels at 1, 6, 12, 24, 36, 48 and 60 months. A CTA will also be performed at 12 months as per standard clinical practice. of p-AAA treatment.
To evaluate two different supra-aortic trunks debranching techniques during open repair of aortic arch aneurysms by means of Frozen Elephant Trunk procedure with two configurations of the Jotec E-Vita hybrid graft.
Patients scheduled for Thoracic Endovascular Aortic Repair (TEVAR) surgery will have transthoracic echocardiography evaluation of left ventricle diastolic function during the perioperative period.