Echocardiography Favaloro Foundation. Buenos Aires, Argentina. JACC Cardiovascular Imaging has recently published a retrospective analysis including severe aortic stenosis patients (< 1 cm²), with low gradient (mean aortic gradient Patients that had undergone dobutamine stress echocardiography (DSE) to distinguish pseudo aortic stenosis (n=49) were selected. These results were used to determine flow reserve (FR). The...
Original title: Impact of wait times on the effectiveness of transcatheter aortic-valve replacement (TAVR) in severe aortic valve disease: a discrete event simulation model. Reference: Wijeysundera HC et al. Can J Cardiol. 2014; Epub ahead of print. Once patients are accepted for percutaneous aortic valve replacement (TAVR), the higher the expected for the valve, the greater the risk...
Original title: Transcatheter Aortic-Valve Replacement with a Self-Expanding Prosthesis. Reference: David H. Adams et al. N Engl J Med. 2014 Mar 29. [Epub ahead of print]. Transcatheter Aortic valve replacement (TAVR) with balloon expandable valve showed survival improvement in inoperable patients and was similar to surgery inoperable high-risk patients. An alternative to the above device is the self-expandable...
-Estudio de Alto Riesgo de CoreValve: La FDA Determina que No se Requiere un Panel de Expertos-Baja Tasa de Mortalidad Supera las Expectativas para el Punto Final Primario-El Sistema CoreValve es la Primera y Única Válvula Aórtica Transcatéter que Presenta Resultados Superiores al Reemplazo Quirúrgico de la Válvula Aórtica MINNEAPOLIS y WASHINGTON – 29 de...
Original title: Transcatheter Versus Surgical Aortic Valve Replacement in Patients With Diabetes and Severe Aortic Stenosis at High Risk for Surgery An Analysis of the PARTNER Trial (Placement of Aortic Transcatheter Valve). Reference: Lindman BR et al. J Am Coll Cardiol. 2014 Mar 25;63(11):1090-9. Diabetes is associated to greater morbidity and mortality after surgical aortic valve replacement (SAVR),...
Original title: Comparison of Results of Transcatheter Aortic Valve Implantation in Patients with Severely Stenotic Bicuspid versus Tricuspid or Non-Bicuspid Valves. Reference: Charis Costopoulos et al. Am J Cardiol. 2014 Jan 31. pii: S0002-9149(14)00554-2. The bicuspid aortic valve (BAV) is the most common congenital cardiac malformation. It occurs in approximately 1% of the general population and often...
Original title: Post-procedural aortic regurgitation in balloon-expandable and self-expandable TAVR procedures: analysis of predictors and impact on long-term mortality: insights from the FRANCE 2 registry. Reference: Van Belle E et al. Circulation. 2014; Epub ahead of print. This study used transthoracic echocardiography (TTE) to evaluate 2769 patients undergoing successful TAVI in 34 centers in France, enrolled in...
Original title: Flow-Gradient Patterns in Severe Aortic Stenosis UIT Preserved Ejection Fraction. Clinical Characteristic and Predictos of Survival. Reference: Eleid, M, et al. Circulation 2013;128:1781-1789 Severe aortic stenosis is usually defined by echocardiography as a 40 mm mean transvalvular gradient Hg at >4 m/s; but there are low flow or paradoxical low flow cases with different evolution. 1704...
Original title: Impact of Low Flow on the Outcome of High-Risk Patients Undergoing Transcatheter Aortic Valve Replacement. Reference: Florent Le Ven, et al. J Am Coll Cardiol 62;9:792-788 A study of low flow (SVi <35ml/m2) in the context of severe aortic stenosis has shown it is a predictor of worse outcomes after surgery, even though evolution with medical...
Original title: Asymptomatic Carotid Stenosis and Risk of Stroke (ACSRS). Reference: Stavros K. Kakkos et al. J Vasc Surg 2013;57:609-18. Despite multiple studies for a uniform approach to treat asymptomatic carotid lesions, it has not been achieved. Many factors have been proposed that contribute to the stratification including the severity of the stenosis, the plaque type, clinical, silent...