Clinical and echocardiographic outcomes of transcatheter mitral valve repair in atrial functional mitral regurgitation.

Background: Isolated atrial fibrillation can cause mitral regurgitation (MR) in patients with normal left ventricular systolic function and no organic disease of the mitral valve. Little information is available regarding outcomes of Mitraclip in patients with atrial functional mitral regurgitation (AFMR). We aimed to evaluate 12-month clinical and echocardiographic outcomes of transcatheter mitral valve repair (TMVR) with MitraClip in patients with AFMR compared to those with ventricular functional or degenerative/mixed MR.

Clinical impact of acute kidney injury on short- and long-term outcomes after transcatheter aortic valve implantation with the CoreValve prosthesis.

Background: Acute kidney injury (AKI) after cardiac surgery is associated with increased mortality, but few data exist on the occurrence and clinical impact of AKI associated with transcatheter aortic valve implantation (TAVI). The objective of this study was to determine the incidence and prognosis of AKI after percutaneous implantation of the CoreValve(®) (Medtronic, Minneapolis, MN, USA) prosthesis.

Methods: A total of 357 patients with severe aortic stenosis and 9 patients with pure native aortic regurgitation were treated with the CoreValve prosthesis.

Prognostic value of fractional flow reserve: linking physiologic severity to clinical outcomes.

Background: Fractional flow reserve (FFR) has become an established tool for guiding treatment, but its graded relationship to clinical outcomes as modulated by medical therapy versus revascularization remains unclear.

Objectives: The study hypothesized that FFR displays a continuous relationship between its numeric value and prognosis, such that lower FFR values confer a higher risk and therefore receive larger absolute benefits from revascularization.

Methods: Meta-analysis of study- and patient-level data investigated prognosis after FFR measurement.

Factors predicting and having an impact on the need for a permanent pacemaker after CoreValve prosthesis implantation using the new Accutrak delivery catheter system.

Objectives: The purpose of this study was to evaluate the need for a permanent pacemaker after transcatheter aortic valve implantation with the CoreValve prosthesis (Medtronic, Inc., Minneapolis, Minnesota) using the new Accutrak delivery system (Medtronic, Inc.).

Survival and predictive factors of mortality after 30 days in patients treated with percutaneous implantation of the CoreValve aortic prosthesis.

Background: Few data exist on the clinical impact of transcatheter aortic valve implantation (TAVI) in patients with symptomatic aortic stenosis and a high surgical risk. The aim of this study was to determine the survival and the factors predicting mortality after 30 days post-TAVI with the CoreValve prosthesis (Medtronic, Minneapolis, MN).

Methods: From April 2008 to October 2010, the CoreValve prosthesis (Medtronic) was implanted in 133 consecutive high-risk surgical patients with symptomatic severe aortic stenosis.

Percutaneous treatment of a dysfunctional aortic bioprosthesis with the CoreValve(®) prosthesis.

Recently, percutaneous aortic valve replacement has emerged as a therapeutic option for patients with severe symptomatic aortic stenosis and a high surgical risk. We report our initial experience in four patients with percutaneous implantation of a CoreValve aortic prosthesis to treat aortic bioprosthesis dysfunction involving aortic stenosis or regurgitation. In-hospital and medium-term outcomes were analyzed.

Changes in atrioventricular conduction and predictors of pacemaker need after percutaneous implantation of the CoreValve®. Aortic valve prosthesis.

Introduction And Objectives: Although changes in atrioventricular conduction frequently occur after percutaneous implantation of an aortic valve prosthesis, little is known about the mechanisms involved or how these changes progress. We investigated ECG abnormalities and predictors of pacemaker need after percutaneous implantation of the CoreValve® aortic valve prosthesis.

Methods: Between April 2008 and October 2009, 65 patients with symptomatic severe aortic stenosis received a CoreValve® prosthesis.

Comparison of medium-term outcomes obtained with drug-eluting stents and coronary artery bypass grafts in an unselected population of diabetic patients with multivessel coronary disease. Propensity score analysis.

Introduction And Objectives: Since the introduction of drug-eluting stents, the optimum revascularization strategy in diabetic patients with multivessel coronary disease has remained controversial.

Methods: This study used multivariate logistic regression analysis and propensity score matching to compare results in 270 consecutive diabetic patients (2000-2004) with multivessel disease (> or =2 vessels with a >70% de novo stenosis involving the proximal left anterior descending coronary artery) who underwent either coronary artery bypass grafting (CABG; n=142) or implantation of a drug-eluting stent (DES; i.e.

Closure of perivalvular leaks using an Amplatzer occluder.

Reoperation of patients with perivalvular leaks due to heart failure or hemolysis is associated with increased morbidity and mortality. Percutaneous closure using an Amplatzer device offers a promising alternative. We describe our initial experience between 2004 and 2006, during which we used an Amplatzer device in eight patients for the percutaneous closure of perivalvular leaks (four aortic and four mitral).

Comparison of incidence and angiography patterns in definite thrombosis between drug-eluting and bare-metal stents.

Stent thrombosis is a feared complication of percutaneous coronary intervention due to its catastrophic consequences. We analysed the incidence of angiographically-confirmed thrombosis in 5011 consecutive patients treated with drug-eluting stents or bare-metal stents. Although the incidence of thrombosis was similar between the two groups (0.

[Long-term prognosis in diabetic patients in whom revascularization is deferred following fractional flow reserve assessment].

Introduction And Objectives: The fractional flow reserve (FFR) has been shown to be a valid and useful measure in the functional assessment of coronary stenoses of intermediate severity. Our aim was to determine the usefulness of FFR assessment in diabetic patients, in whom determination of the FFR can be influenced by microvascular dysfunction.

Methods: Between 1997-2004, FFR assessment was used to evaluate 222 consecutive coronary lesions judged by an interventional cardiologist to be of intermediate severity (ie, 40%-70%).

Clinical impact of drug-eluting stents in an unselected population of diabetic patients.

Background: Drug-eluting stents (DES) have been shown in randomized trials to reduce clinical events in diabetic patients. Our aim was to determine whether these clinical results are applicable in an unselected population of patients with non-insulin-dependent diabetes mellitus (NIDDM) and insulin-dependent diabetes mellitus (IDDM).

Methods: We studied 440 consecutive patients (271 NIDDM and 169 IDDM) who underwent percutaneous coronary intervention, divided into 2 cohorts: Group A (1998-2000): 220 patients with bare metal stents, and Group B (2002-2004): 220 patients with drug-eluting stents.