Active clinical trials for "Aortic Valve Insufficiency"

To evaluate the safety and effectiveness of the SAPIEN XT (Edwards Lifesciences, Irvine, California) transcatheter heart valve implantation (TAVI) in Chinese patients with symptomatic severe calcific aortic stenosis who are considered at high risk for surgical valve replacement.

A prospective, multicenter, nonrandomized, single-arm, clinical study.

The purpose of this clinical investigation is to demonstrate the safety and effectiveness of the Freedom SOLO heart valve.

To investigate the performance of currently available THVs in terms of safety and efficacy To evaluate potential predictors of THV embolization or migration (TVEM) To assess the impact of TVEM on prognosis

Ambulation following surgery has been found to be beneficial for patients; however, nurses and doctors struggle with getting post-operative, hospitalized patients to walk on their own. One promising strategy to address this might be an ambulation orderly, an employee whose single responsibility is to assure that patients walk 3-4 times per day. However, the effect of the ambulation orderly on post-operative physical activity has not yet been described. It is important to quantify what the ambulation orderly does in order to assess if this is an effective method for helping patients walk. As a result, the investigators will perform a pilot randomized controlled trial to test the effects of an ambulation orderly in patients hospitalized with recent cardiac surgery. Half of the patients will be assigned to walk with the ambulation orderly 3-4 times/day and the control group will be given standard nursing encouragement and assistance and encouragement to walk. The investigators will evaluate the average total daily step counts (over the hospital course, usually 4-7 days) and the change in walking distance between a baseline and a final 6 minute walk test. The investigators will also evaluate exercise physiologic parameters (heart rate, oxygen saturation) during ambulation, patient functional independence, and patient satisfaction.

This investigation is a prospective, non-randomized, multi-center trial to evaluate the extended safety and performance of the HAART model 300 annuloplasty ring when used to surgically repair the aortic valve using a 3-D intra-annular mounting frame.

The purpose of the study is to demonstrate the long term safety and effectiveness of the Carpentier-Edwards PERIMOUNT Magna Ease Valves in patients undergoing aortic valve replacement with or without concomitant procedures requiring cardiopulmonary bypass.

The purpose of this study is to confirm the clinical safety and effectiveness of the Trifecta valve.

The purpose of this study is to further evaluate the long-term safety and effectiveness of the Biocor and Biocor Supra Valves.

This trial is designed to confirm the clinical safety and effectiveness of the Trifecta valve by establishing associated adverse event rates, clinical status as indicated by New York Heart Association (NYHA) functional classification, hemodynamic performance, and hematology analysis.