Perigraft seroma is a persistent and sterile fluid confined within a fibrous pseudomembrane surrounding a graft that develops after graft replacement. Development of perigraft seroma is an uncommon complicatio… Read More
Category: General
Donor neo-atrial cuff construction after accidental lower lobe vein transection
An inadequate donor left atrial cuff is a rare technical issue after graft procurement for lung transplantation. With regard to the shortage of suitable donor organs for lung transplantation, these organs shou… Read More
Successful concomitant minimally invasive surgery for aortic valve stenosis and right lung cancer via right mini-thoracotomy : A case report
The case of aortic valve stenosis complicated with lung cancer have compelled cardiovascular surgeons to make challenging. We report the first successful short-term outcomes of one-stage minimally invasive aor… Read More
Non-infectious sternal dehiscence after coronary artery bypass surgery
Non-infectious sternal dehiscence (NISD) is a known complication following coronary artery bypass grafting (CABG), with previous studies estimating an incidence of 0.4–1% of surgeries. We aimed to study the in… Read More
Stents versus bypass surgery: 3-year mortality risk of patients with coronary interventions aged 50+ in Germany
Due to demographic aging, the prevalence of coronary artery disease (CAD) is expected to increase in the future, resulting in a growing demand for stent and bypass interventions. This study aims to investigate… Read More
Inflammatory aneurysm of ascending aorta and left anterior descending artery
Inflammatory aortic aneurysms represent less than 5% of ascending aortic aneurysms and are mostly diagnosed intraoperatively. Furthermore, to our knowledge, a case of an accompanying inflammatory LAD aneurysm … Read More
Should more patients be offered repair for mitral valve endocarditis? a single-centre 15-year experience
To describe the long-term outcomes of mitral valve repair (MVr) versus mitral valve replacement (MVR) in patients with native valve infective endocarditis (IE) at a centre with high-repair rates.
Technical Aspects and Development of Transcatheter Aortic Valve Implantation
J Cardiovasc Dev Dis. 2022 Aug 22;9(8):282. doi: 10.3390/jcdd9080282.
ABSTRACT
Aortic stenosis is the most common valve disease requiring surgery or percutaneous treatment. Since the first-in-man implantation in 2002 we have witnessed incredible progress in transcatheter aortic valve implantation (TAVI). In this article, we review the technical aspects of TAVI development with a look at the future. Durability, low thrombogenicity, good hydrodynamics, biocompatibility, low catheter profile, and deployment stability are the attributes of an ideal TAVI device. Two main design types exist-balloon-expandable and self-expanding prostheses. Balloon-expandable prostheses use a cobalt-chromium alloy frame providing high radial strength and radiopacity, while the self-expanding prostheses use a nickel-titanium (Nitinol) alloy frame, which expands to its original shape once unsheathed and heated to the body temperature. The valve is sewn onto the frame and consists of the porcine or bovine pericardium, which is specially treated to prevent calcinations and prolong durability. The lower part of the frame can be covered by polyethylene terephthalate fabric or a pericardial skirt, providing better sealing between the frame and aortic annulus. The main future challenges lie in achieving lower rates of paravalvular leaks and new pacemaker implantations following the procedure, lower delivery system profiles, more precise positioning, longer durability, and a good hemodynamic profile. Patient-specific design and the use of autologous tissue might solve these issues.
PMID:36005446 | PMC:PMC9409777 | DOI:10.3390/jcdd9080282
Combined impact of elevated arterial stiffness and left ventricular filling pressure on outcomes after off-pump coronary artery bypass grafting
Brachial-ankle pulse wave velocity (baPWV) and early diastolic transmitral flow velocity to mitral annular tissue velocity (E/e′)—which are markers of arterial stiffness and left ventricular (LV) filling press… Read More
Prediction model for delirium in patients with cardiovascular surgery: development and validation
The aim of this study was to construct a nomogram model for discriminating the risk of delirium in patients undergoing cardiovascular surgery.