Active clinical trials for "Aneurysm, False"

The purpose of this study is to investigate the outcome of patients with pathologies of the ascending thoracic aorta (diseases in the great blood vessel or artery that leads away from the heart) including type A aortic dissection, retrograde type A aortic dissection, intramural hematoma, penetrating ulcer or pseudoaneurysm who are suitable for endovascular (within the vessel) repair with the Medtronic Valiant PS-IDE (Physician Sponsored-Investigational Device Exemption) Stent Graft. Type A aortic dissection is a condition where blood passes through the inner lining or between the layers of the blood vessel from a tear in the aortic wall (dissection) in the ascending aorta; a retrograde Type A aortic dissection is a condition where the dissection or tear in the ascending aorta starts from the descending aorta; an intramural hematoma is a collection of clotted blood within the aortic wall; a penetrating ulcer has a plaque or clot within the wall and a pseudoaneurysm is a false aneurysm . If left untreated in any of these conditions, the aorta can enlarge and rupture causing injury or death. The plan for these patients is to repair the ascending thoracic aorta using the Medtronic Valiant PS-IDE Stent Graft with the Captivia Delivery System. The Valiant Captivia has been evaluated worldwide and used extensively in patients with type B (descending) thoracic aortic dissection. Since the dissections in the ascending aortas mirror that of the descending aorta, it is expected that this stent graft will deliver similar performance and endurance in patients with type A aortic dissection. The investigators expect to reroute the blood to the true lumen (the inner space within the blood vessel) by covering the proximal (nearest to the heart) tear with the stent graft. The stent graft is a stent frame made from Nitinol wire and covered with an expandable material made of a polyester material. This new study will determine how well the device works to treat dissections, intramural hematomas, penetrating ulcers and pseudoaneurysms in the ascending thoracic aorta.

There are no endoluminal stent systems available on the Chinese market for the effective treatment of aortic arch lesions (involving aortic arch aneurysms, aortic coarctation, aortic pseudoaneurysms, aortic ulcers, and intermural hematomas), and therefore this study is intended to be a prospective, single-arm study.

The primary objective of ARISE II is to assess the safety and effectiveness of the GORE® Ascending Stent Graft device in the treatment of lesions involving the ascending aorta and aortic arch.

Advanced Endovascular repair of aneurysms and dissections involving thoraco-abdominal (type I-IV) and complex abdominal (juxta and para-renal) aorta is a ground-gaining procedure allowing favorable results in high surgical risk patients. The availability of iliac vessels navigation and the major role of lower leg perfusion in order to decrease the risk of spinal cord ischemia during these complex procedures, led to the development of devices with lower sheaths sizes and to the improvement of the technique with preloaded devices for visceral vessels in order to navigate in hostile anatomies or when an iliac access is not available. The aim of the study is to evaluate in a prospective single center observational setting, the outcomes, safety and efficacy of the modified preloaded system for renal arteries in fenestrated endografting in the routine treatment of paravisceral and thoraco-abdominal aortic pathologies.

Stent treatment of thoracic aortic pathologies, including aneurysms, pseudo-aneurysms, dissections, intramural hematomas, penetrating ulcers and ruptures of the isthmus, seems to provide a likely benefit compared to surgery in terms of surgical mortality and severe morbidity. However, the data concerning the long-term fate of these stents are insufficient. For this reason, the French National Health Authority (HAS) requests a 5-year follow-up in relation to the renewal of insurance reimbursement for these stent-grafts. Therefore, this long-term observational study has been set up.

The primary objective of this trial is to determine whether the Talent Thoracic Stent Graft, an investigational device, is a safe and effective method of treating thoracic aortic aneurysms (abnormal ballooning of the vessel wall) and other thoracic lesions (dissections, transections, pseudoaneurysms, penetrating ulcers, etc.). The endovascular method is a substitute for the major operation that is performed to treat the lesions.

Hepatic pseudoaneurysm (HPA) is a rare complication after liver trauma, yet it is potentially fatal, as it can lead to sudden severe haemorrhage. The risk of developing posttraumatic hepatic pseudoaneurysm is one of the reasons why some trauma centres do follow-up CT of patients with liver injuries to take the therapeutic consequence. The aim of this study was to investigate the occurrence of HPA post liver trauma.

Aortic disease is a kind of cardiovascular diseases with very high mortality rate and high risk of surgical treatment. At present, the surgical and endovascular treatment for diseases in the ascending aorta, descending aorta and abdominal aorta are becoming more and more mature. However, due to the complexity of the aortic arch in anatomy, function and pathological changes, the optimal treatment strategy for diseases in the aortic arch has been controversial constantly. This research is a multi-center(four centers), prospective, controlled, large-scale (about 400 subjects) clinical study, using traditional thoracic surgery of aortic arch disease as a control to verify that new techniques for endovascular treatment is not inferior to traditional thoracic surgery in terms of efficiency and safety. Further more, the investigators plan to explore the indications of the application of these new techniques, develop a better diagnosis and treatment program, reduce the risk of such surgical treatment and the incidence of complications, improve clinical efficacy and the overall quality of the disease.

Gingival recession is defined as the apical migration of the gingival margin from the amelocemental junction. This condition may be associated with symptoms such as tooth hypersensitivity, root decay, and cosmetic complaints from patients. Many treatments have been used to treat gingival recession and the gold standard is the autogenous connective tissue gingival graft because of its predictability. This type of gingival graft is performed by harvesting connective tissue from patients' hard palate. Periodontists and general dentists frequently perform these gingival grafts. Occasionally, some patients develop postoperative complications that need to be addressed in an hospital setting. An uncommon but concerning complication of an autogenous connective tissue gingival graft is a donor site pseudoaneurysm of the greater palatine artery. No description of this complication following a gingival graft has been identified in the current literature. One case report mentioned that pseudoaneurysm of the greater palatine artery looks like a pulsatile nodule associated or not with pain on palpation. From the experience of the investigators, patients may consult an hospital setting having a complaint of major oral bleeding. Local hemostatic agents can palliate this type of bleeding, but angiographic embolization is often required. Several cases were treated in the investigators' hospital. Thus, the investigators believe it is relevant to share this experience with the scientific community. The primary objective of this case series is to inform dental professionals of the existence and the management of postoperative pseudoaneurysm of the greater palatine artery following autogenous gingival graft. The secondary objective is to find potential solutions to minimize the incidence of this morbid complication.

The purpose of this study is to evaluate the clinical use of the PK Papyrus Coronary Stent Graft System, a Humanitarian Use Device (HUD) approved by the FDA under a Humanitarian Device Exemption.