heart valve surgery

Displaying 26 studies

  • Hemodynamics of Valve in Valve Therapies Rochester, MN

    The objective of this project is to assess the impact of valve in valve procedure on hemodynamics at the time of procedure and during follow-up.  

  • Long Term Follow Up Study of the St. Jude Medical Trifecta Valve Rochester, MN

    The purpose of this study is to collect long term follow up study data of the Trifecta valve in subjects who had the Trifecta valve implanted during the IDE study.

  • Intraoperative Observations and Long-term Outcomes of Bioprosthetic Valve Implantation Rochester, MN

    The purpose of this study is to assess the prevalence and outcome of a stuck leaflet that was found at the time of valve replacement, and to evaluate the risk of future valve thrombosis in affected patients.

     

     

  • Point-of-Care RBC Washing to Prevent Transfusion-Related Pulmonary Complications Rochester, MN

    This study is designed to determine if point-of-care washing of allogeneic Leukocyte-Reduced Red Blood Cells reduces pulmonary complications when compared to standard-of-care Leukocyte-Reduced Red Blood Cells in a cardiac surgical population.

  • Perceval S Aortic Heart Valve Study- North America Rochester, MN

    To demonstrate the safety and effectiveness of the Perceval S heart valve when used to replace a diseased or dysfunctional aortic valve or aortic valve prosthesis.

  • A Study Using Lactated Ringer's Solution versus 5%Human Albumin in Cardiac Surgery Patients Rochester, MN

    The purpose of this study is to compare the total fluid volume of using 5% human albumin and Lactated Ringer's in the perioperative cardiac surgical patient. Our hypothesis is that the individual total fluid volume will be less with 5% human albumin compared to Lactated Ringer's in the perioperative cardiac surgical patient.

  • Perceval Sutureless Implant Vs Standard Aortic Valve Replacement: A Controlled Randomized Trial in the Surgical Treatment of Aortic Valve Disease Rochester, MN

    The primary objective of this trial is to test the safety and efficacy of Perceval versus standard sutured stented bioprosthetic aortic valves among the intended trial population.

  • Trifecta™ GT Post Market Clinical Follow-up Rochester, MN

    The objective of this study is to evaluate the safety and performance of the Trifecta™ GT (Glide Technology) valve through 5 year follow-up in a prospective, multi-center, real-world setting. This study is intended to satisfy post-market clinical follow-up requirements of CE Mark in Europe.

  • A Study of Information Provided by Cardiopulmonary Exercise Testing When Evaluating Patients with Aortic Stenosis Rochester, MN

    The purpose of this study is to find if cardiopulmonary exercise testing data will provide any predictive information in evaluating patients with aortic stenosis for severity, symptoms and surgical risk.

  • A Study of Long Term Outcomes of Patients who have had Open Valvotomy for Congenital Aortic Valve Stenosis Rochester, MN

    The purpose of this study is to evaluate the outcomes of surgical Aortic Valvotomy for congenital aortic stenosis.

  • Collection of Blood and Tissue in Patients with Aortic Stenosis Scottsdale/Phoenix, AZ

    The goal of this study is to create a comprehensive system of blood and tissue banking of samples from Mayo Clinic Arizona patients with a clinical diagnosis of aortic stenosis who are either undergoing routine care at Mayo Clinic or undergoing aortic valve surgery.  The tissue samples will be used for future research of aortic stenosis at Mayo Clinic and future research at Mayo Clinic to learn about, prevent, or treat other health problems.

  • PROACT Xa - A Trial to Determine if Participants With an On-X Aortic Valve Can be Maintained Safely on Apixaban Rochester, MN

    The purpose of this study is to determine if participants with an On-X Prosthetic Heart Valve / On-X aortic valve can be maintained safely and effectively on apixaban. Both the On-X aortic valve and apixaban have been approved for use by the US Food and Drug Administration (FDA) but they have not been approved to be used together.  Currently, warfarin is the only approved anticoagulation for patients with mechanical valves.

  • SAPIEN M3 System TransCatheter MItral Valve ReplaCement via TransseptaL AccEss Rochester, MN

    The purpose of this study is to establish the safety and effectiveness of the SAPIEN M3 System in subjects with mitral regurgitation (MR) who are at high surgical risk.

  • A Study to Evaluate Aortic Dilatation in Patients with Conotruncal Abnormalities Rochester, MN

    The purpose of this study is to assess operative and postoperative outcomes after aortic valve surgery, evaluate for changes in ascending aorta diameter by comparing pre-operative CT imaging to measurements on follow-up imaging, and examine late outcomes and functional status during the follow-up period with specific focus on mortality, need for re-operation and incidence of aortic dissection.

  • Phase III Study to Evaluate the Efficacy and Safety of the INTERCEPT Blood System for Red Blood Cells in Patients Undergoing Complex Cardiac Surgery Procedures Rochester, MN

    The purpose of this study is to evaluate the efficacy and safety of RBC transfusion for support of acute anemia in cardiovascular surgery patients based on the clinical outcome of renal impairment following transfusion of red blood cells (RBCs) treated with the INTERCEPT Blood System (IBS) for Red Blood Cells compared to patients transfused with conventional RBCs.

  • A Clinical Trial to Evaluate the HeartWare® Ventricular Assist System Scottsdale/Phoenix, AZ

    The purpose of this study is to determine the safety and effectiveness of the HeartWare Ventricular Assist System in patients with chronic Stage D/NYHA Class IIIB/IV left ventricular failure who have received and failed optimal medical therapy, and who are ineligible for cardiac transplantation.

  • A Study of Software Aided Angle Measurements to Improve Total Aortic Valve Replacement Rochester, MN

    The purpose of this study is to see if , with the help of a new software program to find the aortic valve angles, accurate placement of a new valve can be improved during a total aortic valve replacement procedure.

  • New-onset Atrial Fibrillation and Flutter Following Cardiac Surgery Rochester, MN

    The aims of this investigation are:

    To assess the predictive value (and accuracy) of clinical and physiologic preoperative variables in identifying patients at risk for the development of new-onset atrial arrhythmia after cardiac surgery.

    To assess the feasibility of a physiological risk model based on clinical and echocardiographic indexes to predict post-operative AF.

    To assess the role of prophylactic agents in the prevention of new-onset postoperative POAF

    To assess the economic impact of new-onset postoperative AF:

    • Length of hospital stay (will be measured as fractions of days)

    • Hospital cost (will be measured in standardized dollars)

    • Resource utilization (will be measured by resource-based relative-value units)

    To assess the outcome ...

  • Cardiac Vascular Reconstruction DynaCT for TAVI Procedures Rochester, MN

    The purpose of this work is to evaluate the feasibility of a new Cardiac Vascular Reconstruction (CAVAREC, Siemens Medical Systems, Germany) image reconstruction algorithm for use during transcatheter aortic valve implant (TAVI) procedures. CAVAREC utilizes the same x-ray projection images as currently acquired for clinical DynaCT. X-ray image acquisition to allow CAVAREC will occur during the TAVI procedure both before and after the TAVI device is implanted. The CAVAREC image processing algorithm will be implemented on an off-line workstation after the TAVI procedure is complete. After the TAVI procedure, CAVAREC images will be quantitatively and qualitatively compared to Siemens DynaCT ...

  • Transfemoral Replacement of Aortic Valve With HLT MeriDIAN Valve Early Feasibility Trial Rochester, MN

    The purpose of this study is to evaluate the safety and performance of the HLT System in patients with severe aortic stenosis who present at High Risk for aortic valve replacement surgery.

  • Grit as a Predictor of Outcomes in Transcatheter Valvular Therapeutic Candidates Rochester, MN

    The purpose of this study is to provide a survey to prospective candidates undergoing transcatheter valve replacement or repair at two time-points to assess grit, a psychological composite of personal diligence which has been validated to predict retention in other pursuits of long-term goals over and above assessments limited to intelligence and physical aptitude.

  • Determining the Impact of Ascorbic Acid Treatment on Vasodilation in Cardiac Surgery Rochester, MN

    The purpose of the study is to determine the feasibility of administration of high dose intravenous ascorbic acid in the operative and post-operative environments as well as sample size for a prospective, randomized, placebo controlled study.

  • Evaluating the Benefit of Concurrent Tricuspid Valve Repair During Mitral Surgery Rochester, MN

    The purpose of the research is to determine whether repairing a tricuspid valve (TV) in patients with mild to moderate tricuspid regurgitation (TR), at the time of planned mitral valve surgery (MVS), would improve the heart health of those who receive it compared to those who do not. At this point, the medical community is split in their opinion on whether surgeons should routinely repair mild to moderate TR in patients who are undergoing planned mitral valve surgery, and this study will answer this question.

  • MRE Evaluation of Liver Stiffness After Tricuspid Valvular Repair Rochester, MN

    The purpose of this study is to look at liver stiffness with a MRI sequence called Magnetic Resonance Elastography (MRE). The study will let the investigators know whether the subject's liver is normal or has increased stiffness. Increased liver stiffness often means there is chronic liver disease and fibrosis. Increased right heart pressure and congestive heart failure are considered risk factors for development of liver fibrosis. Liver fibrosis, if progressive, may lead to cirrhosis and its related complications. The increased liver stiffness may be due to a poorly functioning tricuspid valve. With this research, the investigators will be able to ...

  • A Study of Strain Echocardiography in Assessment of Valvular Heart Disease Rochester, MN

    Classical echocardiographic assessment of heart valves is critical in determination of disease severity. However, echocardiography has only limited ability to predict how well an individual patient will do at time of surgery. New echocardiographic technology allows us to measure new, more refined parameters of your heart’s performance. This study is investigating whether these new parameters are better in predicting outcomes.

  • Acupuncture Treatment for Patients Who Develop Arrhythmias in the Post-Operative Cardio-Thoracic Setting Rochester, MN

    A feasibility study on the provision of acupuncture treatment in the hospital to 20 patients who have undergone open heart surgery procedures. The acupuncture treatments may begin as early as postoperative Day 2.

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