Background: Preimplantation balloon aortic valvuloplasty (BAV) is considered a routine procedure during transcatheter aortic valve implantation (TAVI) to facilitate prosthesis implantation and expansion; however, it has been speculated that fewer embolic events and/or less hemodynamic instability may occur if TAVI is performed without preimplantation BAV. The aim of this study was to systematically review the clinical outcomes associated with TAVI undertaken without preimplantation BAV.
Background: ST‐segment elevation myocardial infarction is increasingly common in octogenarians, and optimal management in this cohort is uncertain. This study aimed to describe the outcomes of octogenarians with ST‐segment elevation myocardial infarction treated by primary percutaneous coronary intervention.
Background: For the treatment of coronary bifurcation lesions, a provisional strategy is superior to systematic 2-stent techniques for the most bifurcation lesions. However, complex anatomies with large side branches (SBs) with significant ostial disease length are considered by expert consensus to warrant a 2-stent technique upfront. This consensus view has not been scientifically assessed.
Background: The efficacy and prognosis of percutaneous coronary intervention (PCI) as secondary revascularization in patients with previous coronary artery bypass graft surgery remain uncertain.
Background—As coronary perforation (CP) is a rare but serious complication of percutaneous coronary intervention (PCI) the current evidence base is limited to small series. Using a national PCI database, the incidence, predictors, and outcomes of CP as a complication of PCI were defined.
Background: The performance of everolimus-eluting bioresorbable vascular scaffold (BVS) versus drug-eluting metallic stent (DES) in the same individual receiving multilesion percutaneous coronary intervention (PCI) remains poorly studied. This report investigates the intraindividual performance of BVS and DES in patients receiving multilesion PCI and follow-up angiography.
Background: The role of allergic inflammation in acute coronary syndromes (ACS) has not been clearly defined to date. Aim of this study was to assess eosinophil and basophil activation in ACS and the prognostic role of eosinophil cationic protein in ST-segment–elevation myocardial infarction.
Paravalvular prosthetic regurgitation is a potentially serious condition resulting from degeneration of annular tissue, affecting 6% to 15% of surgically implanted prosthetic valves and annuloplasty rings.1–3 In conditions of tissue friability from any cause, annular calcification, or infection, paravalvular defects can form and lead to varying degrees of regurgitation. Surgical factors associated with the development of paravalvular regurgitation include prostheses in the mitral position, supra-annular aortic prostheses, use of continuous sutures in the mitral position,3 and use of sutures without pledgets.
Introduction: Early deterioration of Mitroflow aortic bioprostheses (Sorin Group Inc), particularly small sizes 19 and 21 mm, has been reported.1 Treatment of failing bioprostheses by transcatheter valve-in-valve (VIV) therapy has become an alternative to repeat surgery.2,3 However, VIV treatment is problematic with small surgical bioprostheses because of a further reduction in the effective valve orifice. One way to overcome this challenge may be to fracture the ring of the surgical valve by high-pressure balloon dilatation before implanting a larger size transcatheter valve.
Background: Transcatheter aortic valve replacement (TAVR) was approved by the Food and Drug Administration (FDA) in November 2011 after a collaborative technology development process involving professional medical societies, the medical device industry, and the FDA. After FDA approval, TAVR was adopted by numerous hospitals that had not participated in TAVR clinical trials. It is uncertain if outcomes at these hospitals were comparable with those at clinical trial hospitals.
Background: For patients with ST-segment–elevation myocardial infarction (STEMI) requiring interhospital transfer for primary percutaneous coronary intervention, direct transfer from the STEMI referral hospital to the catheterization laboratory (cath lab) at the STEMI receiving hospital may expedite reperfusion, but can be logistically challenging.
Background: Current risk models for predicting long-term mortality after percutaneous coronary intervention are restricted to all-cause mortality. We sought to develop novel risk models for the prediction of cardiac and noncardiac mortality after percutaneous coronary intervention.
A 48-year-old man with crescendo angina exhibited a severe diffuse lesion in the left anterior descending artery (Figure 1, Online Video). The option of mammary grafting was ruled out due to poor distal target. Percutaneous coronary intervention with drug-eluting stents (DES) would result in full-metal jacket (>50 mm of overlapping stents), which poses the long-term risk of stent thrombosis, and, in addition, restenosis is often difficult to treat, with high rates of recurrence.
A 66-year-old woman with severe mitral stenosis (mean gradient, 13.81 mm Hg; valve area, 0.8 cm2) and extensive mitral annular calcification (MAC) presented with New York Heart Association functional class IV congestive heart failure. Balloon mitral valvuloplasty was not considered due to the high Wilkins score (i.e., 12) Because of a Society of Thoracic Surgeons mortality score of 10.04% and cirrhosis (Child-Pugh B), the heart team deemed her at prohibitive surgical risk.
Objectives: The goal of this study was to assess procedural details and outcomes of repeat MitraClip therapy.
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