Active clinical trials for "Aortic Valve Stenosis"

Transcatheter aortic valve implantation (TAVI) is a well-established alternative to surgical aortic valve replacement for the treatment of patients with symptomatic severe aortic stenosis. While peri-procedural complications such as stroke, vascular complications and bleeding have substantially declined with the refinement of transcatheter valves and increasing experience, new-onset atrial fibrillation (NOAF) or atrioventricular conduction disturbances continue to occur in almost half of all patients. Colchicine is a well-known substance that has been approved for the treatment of acute gout flares and familial Mediterranean fever in many countries. Colchicine has proven safe and effective in the prevention of atrial fibrillation after cardiac surgery. The anti-inflammatory effects of colchicine may mitigate the occurrence of atrioventricular conduction disturbances and thus the need for the implantation of a permanent pacemaker post transcatheter aortic valve implantation. The objective of the Co-STAR-Trial is to investigate the efficacy of colchicine for the prevention of new-onset atrial fibrillation and conduction disturbances requiring the implantation of a permanent pacemaker in patients undergoing transcatheter aortic valve implantation. Co-STAR is an investigator-initiated, randomized, double blind, placebo-controlled trial. A total of 200 patients referred for treatment of symptomatic severe aortic stenosis and selected to undergo TAVI will be randomized in a 1:1 ratio to the treatment with Colchicine or placebo for 30 days post transcatheter aortic valve implantation.

The goal of this phase IV, randomized, controlled and open-label study is to assess the efficacy of peri-procedure glucocorticoid treatment in the prevention of conduction abnormalities and the need for pacemaker implantation in patients undergoing transaortic valve replacement compared to placebo. Participants randomized to the intervention group will receive a single dose of intravenous Methylprednisolone 7 mg/kg/day on the day of the procedure (1 hour before), followed by 15 mg/12 hours of daily Prednisone for 5 days. The primary endpoint is a composite of permanent pacemaker implantation and the occurrence of new conduction abnormalities (any-degree AV block, bundle branch block, or non-specific intraventricular conduction disorder) at discharge, at 30 days and 1 year.

Open-label, prospective randomized comparison of Supra-annular valves (Medtronic Evolut Pro) vs. annular valves (Edwards Sapien Ultra) for small annuli (≤23 mm)

This study evaluates the efficacy and safety of single dose preoperative ferric carboxymaltose in the prevention of postoperative infections and blood transfusions in patients scheduled for cardiac surgery. Half of the patients will receive ferric carboxymaltose and half of the patients physiological saline solution as placebo.

Aortic stenosis (AS) affects approximately 5% of individuals >65 years old, with ~3% of people >75 years having moderate to severe disease. The prevalence of AS is rising rapidly due to an ageing population and is projected to double in the next two decades. Increasingly clinicians face the dilemma of how to best manage this growing population of mainly elderly patients, many of whom are asymptomatic but have been identified as having severe AS, often as an incidental finding. Reduced aortic valve opening progresses over decades without any apparent symptoms because the heart compensates for the AS. Ultimately, compensatory mechanisms fail resulting in angina, syncope or heart failure. If these symptomatic patients with severe AS remain untreated, they have a dire prognosis. In this situation the only effective treatment is AVR, either surgically or using TAVI. Conversely, conventional teaching and clinical practice in cardiology has been that, in the absence of symptoms, the prognosis is usually excellent and, except in a few very specific circumstances, conservative management and regular review (expectant management) is recommended. This advice is reflected in current international guidelines but is based largely on historical precedent. There has never been a randomised controlled trial to address the relative benefits of early AVR versus expectant management in patients with severe asymptomatic AS. The relative benefits of a strategy of early AVR/TAVI versus expectant management in patients with asymptomatic severe AS are unclear. There is clinical equipoise but it remains one of the few areas of cardiovascular medicine where no randomised controlled trials (RCT) have been performed. The EASY-AS study will provide crucial data on the relative merits of these differing approaches to management, in terms of important patient orientated outcomes, conventional cardiovascular end-points and cost effectiveness.

The purpose of the current study is to assess complete coronary physiology (FFR, RFR, CFR, IMR, and CT-FFR) in TAVI candidates with intermediate coronary artery stenosis before and 6 months after TAVI. This aims to determine how TAVI affects coronary blood flow and coronary microcirculatory function after longer-term follow-up, and how these effects influence FFR and RFR values. In addition, it is aimed to correlate invasive functional testing (FFR and RFR) with non-invasive CT-FFR before and 6 months after TAVI.

COPAS pilot is a pilot single center double blinded randomized study to determine the effect of targeted anti-inflammation therapy using colchicine, on valvular calcification activity using imaging, i.e. aortic valvular NaF uptake. The current proposal uses a randomized design to evaluate the effect of colchicine vs. placebo on valvular calcification activity over 6 months measured using NaF PET

The study aims to evaluate the processes of a pilot single-centre randomised controlled trial (RCT) of carbon-dioxide flushing of transcatheter aortic valves (TAVI-CO2) versus standard saline flushing of valves (TAVI-S) and assess potential neuroprotection through a number of neurological endpoints for planning of a full-sized RCT

To evaluate the effects of a home-based cardiac rehabilitation program for Chinese patients after Transcatheter Aortic Valve Replacement (TAVR).

The PACO trial is a randomized clinical trial conducted in Heart Centers of Kuopio and Turku university hospitals. The coronary artery disease, aortic valve stenosis and mitral valve insufficiency patients preparing for elective coronary artery bypass grafting (CABG), aortic valve replacement (AVR) or mitral valve repair (MVR) will be randomized to either intervention or control group. The specific operation groups (CABG, AVR and MVR) will be analyzed separately. The 7-day baseline measurements of sedentary behaviour (SB), physical activity (PA) and sleep will be conducted to the patients by using the RM42 accelerometer during the pre-operative month. After the cardiac procedure is completed and the patient is moved to post-operative ward, the control group patients will begin the standard post-operative rehabilitation program of the participating hospitals (activity guidance given by a physiotherapist). Patients in the intervention groups will follow the identical program but after discharge they will also receive personalized activity guidance through the combination of ExSed smart phone application, Suunto MoveSense accelerometer and cloud system during the first 90 days of post-operative rehabilitation. Weekly evolving daily goals to replace SB with PA (daily goals for steps, moderate PA, light PA and standing, and sitting time limit) will be designed for each patient of the intervention groups. A new daily step goal will be delivered from the cloud system to the patient's smart phone in the beginning of each week of the intervention. The daily step goal of the first intervention week is based on patient's walking distance assessed by a physiotherapist in post-operative ward. The following goals will be automatically evolved in the basis of patient's personal average step count of the previous week. The MoveSense accelerometer will measure accumulated levels of SB, PA and sleep, and transmit the data to user's ExSed application with Bluetooth. With information about accumulated levels of SB and PA, the application is able to guide the patient to accomplish the predefined activity goal. The guidance and motivation will be offered with pop-up notifications and histograms (columns are fulfilled according to patient's accumulated daily activity). The researches retain a remote access to the activity data of patients in the cloud system. The ExSed application will be connected to the cloud system with internet connection. In addition, the patients of the intervention groups will receive short video files (lasting from 1 to 3 minutes) containing exercise guidance from a physiotherapist specialized to cardiac operation patients. These videos are available on the ExSed application during the intervention. The physiotherapist will also contact each patient (by mobile phone) with structured contact form from 1 to 4 times in a month to make sure that the intervention is proceeding as designed.