The study is to evaluate real world usage of the ENROUTE® Transcarotid Stent System when used with the ENROUTE® Transcarotid Neuroprotection System in patients with significant carotid artery disease who are at standard risk for adverse events from carotid endarterectomy (CEA). The devices used in the study are not investigational and have been approved for use by the Food and Drug Administration (FDA).

The purpose of this research study is to find out if AMDS is safe and effective in the treatment of acute dissection (sudden tear). For patients whose aortic anatomy is suitable for treatment with AMDS, the use of this device may promote healing of the aortic walls and possibly reduce the need for additional aortic surgeries. If conventional surgery, in combination with AMDS, is effective, it is believed that this could lead to improved aortic healing; an improvement in healing could reduce the risk of hospitalization and reoperation in the chest compared to conventional surgery alone.

This study will compare WATCHMAN FLXTM ("DEVICE") to a category of OAC called non-vitamin K antagonist oral anticoagulation, also known as NOACs ("CONTROL"). NOAC medications include Pradaxa® (dabigatran), Eliquis® (apixaban), Xarelto® (rivaroxaban), or Savaysa® (edoxaban).The study will research the safety and effectiveness of the WATCHMAN FLXTM device compared to treatment with NOAC therapy to determine if it works for patients with your type of atrial fibrillation who require treatment for potential blood clot formation (thrombus) in the LAA.

The purpose of this study is to observe the safety and effectiveness of the Indigo Aspiration System. This study will help determine how study participants recover when the study device is used to remove the clot from the deep veins.

The purpose of this research study is to develop a better understanding of the cause and natural history of vascular anomalies and related syndromes. This study is being done in order to develop a better understanding of the cause of vascular anomalies in order to to improve care for people who are affected by these anomalies and related syndromes.

This study is being done at the University of Wisconsin-Madison (UW-Madison) and other sites in North America and Europe. A total of about 1000 people will participate in this study. About 20 – 30 people will take part in the study here at the Medical University of South Carolina.

The purpose of this research study is to gather information on the health outcomes of patients who receive treatment with the Shockwave Medical, Inc Peripheral Lithoplasty® (Shockwave device) to assist with aortic endovascular procedures requiring a large catheter (long, thin tube made from medical grade materials). An endovascular procedure is a procedure where a doctor uses a small cut to insert a catheter into a blood vessel to repair it. The Shockwave Medical, Inc Peripheral Lithoplasty® system is an FDA approved catheter device used to open narrowed blood vessels in the legs (called arteries) so that it is easier for blood and other catheters to pass through. This study will collect information from participants who need an endovascular procedure on their aorta. The small cut used to insert the catheter is usually made in an artery in your leg and is used to get to your aorta. Endovascular procedures on the aorta use large catheters. Sometimes, it is necessary to expand the blood vessel in your leg so that the large catheters can fit. There are many different methods used clinically for this purpose, but it is not known which method works best. This study will help to determine if using the Shockwave device to expand your blood vessel is a better than using balloon angioplasty (use of a catheter with a balloon on the end) to expand your vessel

This study is seeking participants with narrowing of the blood vessels of their lower limbs. The purpose of this study is to determine if treating a blockage in blood vessel in the leg has a better long term outcome when placing a stent like device called a scaffold that is coated with a medication after ballooning open the vessel compared to opening the vessel with the balloon only. The scaffold device is called the Esprit™BTK Everolimus Eluting Bioresorbable Scaffold System and is considered investigational meaning it has not been approved for commercial use by the US Food and Drug Administration. The study is designed to last 5 years and will include up to 10 visits.

In current practice, options for venous and lymphatic malformations remain limited. Recently an oral medication, sirolimus, has been found to benefit patients when taken once or twice a day for several months. Unfortunately there are many side effects associated with this medication, some of which can be severe including, neutropenia, oral ulcerations, and lab abnormalities. The purpose of this study is to determine if once weekly dosed sirolimus will be effective for the treatment of venous and lymphatic malformations. Additionally, the study will evaluate patient satisfaction and identify adverse effects. Participants will be on the medication for 6 months with an option to continue after this time period.

This is a prospective cohort study of subjects with portal hypertension to examine whether increased sphingosine 1 phosphate : ceramide ratio and circulating bile acids are associated with HPS in patients with advanced liver disease. The study will consist of 400 individuals who are evaluated for liver transplantation at the Field Centers. This population has advanced liver disease and will represent the population with cirrhosis at the Centers. As is considered standard of clinical care for these patients and required for liver transplant evaluation, patients will undergo phlebotomy, interviews, pulmonary function testing, echocardiography, and arterial blood gas sampling at their initial evaluation. During the clinical phlebotomy, additional samples will be drawn for research purposes. If any of these procedures does not occur during the clinical visit, it may be conducted for research purposes. Six minute walk testing, frailty scales, SF36, and optional actigraphy, all of which are research-only assessments, will be performed at baseline. Subjects will then be followed via phone for the duration of the study period.