Search results for "Heart Valve"
showing 10 items of 138 documents
Prior oral conditions in patients undergoing heart valve surgery
2017
Background Patients scheduled for heart valve surgery should be free of any oral infectious disorders that might pose a risk in the postoperative period. Few studies have been made on the dental conditions of such patients prior to surgery. The present study describes the most frequent prior oral diseases in this population group. Material and Methods A prospective, observational case-control study was designed involving 60 patients (30 with heart valve disease and 30 controls, with a mean age of 71 years in both groups). A dental exploration was carried out, with calculation of the DMFT (decayed, missing and filled teeth) index and recording of the periodontal parameters (plaque index, gin…
In-vitro-Untersuchung von biologischen und technischen Herzklappenprothesen im MRT: Beurteilung möglicher Anziehung und Erhitzung der Implantate
2000
PURPOSE In vitro evaluation of possible deflection and heating of present-day prosthetic heart valves during MR imaging at 1.5 T. METHODS 17 prosthetic heart valves, 12 technical and 5 biological, were investigated using a 1.5 Tesla Siemens Vision system. Deflection was measured at the edge of a 1.5 Tesla superconducting magnet. Each valve was then submerged in a vial of a 1/1 electrolyte solution and temperature was measured before and after imaging with a turbo-spin-echo sequence (TR 5200 ms, TE 138 ms, Flip angle 180 degrees, acquisition time 10.5 minutes, length of echo train 29). MR imaging was performed with phase encoding parallel and perpendicular to the plane of the valves. RESULTS…
From Clinical Imaging to Patient-Specific Computational Model: Rapid Adaptation of the Living Heart Human Model to a Case of Aortic Stenosis
2021
Aortic stenosis (AS) is the most common acquired heart valve disease in the developed world. Traditional methods of grading AS have relied on the measurement of aortic valve area and transvalvular pressure gradient. Recent research has highlighted the existence of AS variants that do not meet classic criteria for severe AS such as low-flow, low-gradient AS. With the development of sophisticated multi-scale computational models, investigation into the left ventricular (LV) biomechanics of AS offers new insights into the pathophysiology that may guide treatment decisions surrounding AS. Building upon our prior study entailing LV-aortic coupling where AS conditions were applied to the idealize…
Patient selection, echocardiographic screening and treatment strategies for interventional tricuspid repair using the edge-to-edge repair technique
2018
Severe tricuspid regurgitation (TR) has long been neglected despite its well-known association with mortality. While surgical mortality rates remain high in isolated tricuspid valve surgery, interventional TR repair is rapidly evolving as an alternative to cardiac surgery in selected patients at high surgical risk. Currently, interventional edge-to-edge repair is the most frequently applied technique for TR repair even though a device has not been developed for this particular indication. Due to the inherent differences in tricuspid and mitral valve anatomy and pathology, percutaneous repair of the tricuspid valve is challenging due to a variety of factors including the complexity and varia…
Fully Percutaneous Transaxillary Aortic Valve Replacement With Effective Bailout Plan for Vascular Complications.
2020
Heart involvement in rheumatoid arthritis: systematic review and meta-analysis.
2013
Abstract Objective The aim of our study was to conduct a systematic review with meta-analysis of the current case–control studies about the valvular and pericardial involvement in patients with Rheumatoid Arthritis (RA), asymptomatic for cardiovascular diseases. Methods Case–control studies were identified by searching PubMed (1975–2010) and the Cochrane Central Register of Controlled Trials (CENTRAL) (1975–2010). Participants were adult patients with RA asymptomatic for cardiovascular diseases, and the outcome measure was the presence of cardiac involvement. Results Quantitative synthesis included 10 relevant studies out of 2326 bibliographic citations that had been found. RA resulted sign…
Successful transcatheter aortic valve-in-valve implantation in a patient having a chronic type A aortic dissection
2017
Prognostic role of tapse to pasp ratio in patients undergoing mitraclip procedure
2021
Producción Científica
A first dedicated heart valve unit: safe and streamlined patient care for the rapidly growing field of transcatheter heart valve interventions
2021
Abstract Background A dedicated Heart Valve Unit was launched in 2018 to meet the demands of the growing transcatheter heart valve program by optimizing patient care in a single dedicated unit. Purpose To assess the performance of the heart valve unit (all steps of patient care in a single unit with intermediate care facilities) over a conventional approach (preparation on a normal ward, postprocedural intensive care unit (ICU) monitoring and transfer to an additional monitoring ward before discharge) in a high volume center. Methods Retrospective analysis including patients undergoing transcatheter mitral or tricuspid valve repair who were admitted to the Heart Valve Unit (02/2018–01/2020)…