Aneurysm or dilatation of ascending aorta

This study tests two types of branch endografts (Zenith t-Branch and Terumo Arch Branch) to treat aortic aneurysms in the chest and abdomen. The devices are placed inside the aorta to reinforce the weakened vessel wall and keep blood flowing to vital organs. Researchers will trac…

This study tests whether giving two steroids (hydrocortisone and fludrocortisone) to high-risk patients before heart surgery can lower the chance of serious complications like kidney injury and lung problems. The trial will include 196 adults with a EuroSCORE II above 4% who are …

This small pilot study is testing whether giving a second treatment with the Nectero EAST system is safe and helpful for people with abdominal aortic aneurysms (a bulging blood vessel in the belly). Ten adults who already had one treatment will get a repeat procedure. The goal is…

This study is testing a device called a valved graft, which replaces both the aortic valve and the ascending aorta in one surgery. It includes 260 people with aortic valve disease, an enlarged aorta, or aortic dissection. The goal is to see how safe and effective the device is by…

This study is testing a less invasive treatment for a serious tear in the main artery near the heart, specifically for people who are too high-risk for open-heart surgery. About 149 participants will receive a stent placed through a blood vessel to repair the tear. Researchers wi…

This study looks at patients with an ascending aorta that is enlarged (5.0 to 5.4 cm) but not yet at the traditional surgery threshold. Half will have early surgery to replace the aorta, and half will be closely monitored. Researchers will compare death rates and dangerous aortic…

This early-phase study tests whether placing amiodarone directly into the sac around the heart during open-chest surgery can prevent a common and serious irregular heartbeat called atrial fibrillation. About 63 adults aged 20-85 having bypass or valve surgery will receive this tr…

This study looks at how inflammation and energy use in the aorta differ between people with a bicuspid versus tricuspid aortic valve who have an ascending aortic aneurysm. Researchers will analyze blood and discarded surgical tissue to find molecular markers that could lead to be…

This study looks at tissue removed from patients with enlarged aortas (aneurysms) during surgery. Researchers want to measure how strong the tissue is and see if that relates to the size or thickness of the aorta. The goal is to better understand what makes an aneurysm likely to …

This observational study aims to better understand the mechanical properties of the aortic wall in patients with aortic aneurysms or dissection. Researchers will measure tissue strength from samples taken during surgery and compare them to samples from patients without aortic dis…

This study compares two surgical techniques for repairing a chronic ascending aortic aneurysm: the traditional full sternotomy (cutting through the breastbone completely) and a less invasive J-shaped mini-sternotomy (a smaller cut). Researchers will track early and late outcomes …

This study is looking at 200 people who need surgery for an ascending aortic aneurysm. Researchers will use MRI scans before surgery and test the removed tissue in the lab to learn more about the aorta's strength and flexibility. The goal is to better understand when surgery is n…

This observational study is measuring arterial stiffness in 250 people with genetic conditions that cause aortic aneurysms. Researchers want to see if stiffness can help predict who is at higher risk. Participants undergo a simple, non-invasive test of blood pressure and artery s…