We have read carefully the letter to editor by Güner et al.,1Güner A. Kalç?k M. Kalkan S. al.Management of obstructive prosthetic heart valve thrombosis: thrombolytic therapy or anticoagulation?.Can J Cardiol. 2021; 37: 938.e7Abstract Full Text PDF Scopus (1) Google Scholar in which we were urged clarify certain aspects related case report that published about thrombosis a bioprosthesis COVID-1...

Calcification of cardiovascular prosthetic implants is a common and important problem. This review provides an update based upon the Conference on Cardiovascular Implant Calcification held as part of the 13th World Congress of the International Society for Heart Research, 1989. A variety of cardiovascular prostheses are affected clinically by calcification, including bioprosthetic heart valves,...

S ince the first transcatheter aortic valve implantation (TAVI) by Dr. Alain Cribier was reported in 2002, the field of TAVI has grown steadily and, at times, exponentially.1 Surgeons and cardiologists have continued to innovate and broaden the range of applications for TAVI. Initially developed for aortic stenosis, TAVI has been performed by either a transfemoral or transapical approach. Subse...

introduction cerebral haemorrhage could complicate post operative course after cardiac surgery, especially after multiple mechanical valves replacement needing for anticoagulation. the interruption of vitamin k antagonists in this cases, to avoid the enhancement of the cerebral haemorrhage, can be performed with reasonable safety. case presentation we report the case of a patient who underwent ...

Until recently, percutaneous catheter therapy for valvular heart disease was limited to catheter balloon valvuloplasty for aortic, mitral, or pulmonic stenosis. A number of new approaches to percutaneous valve therapy are now developing rapidly, including methods for catheter-based valve replacement and repair. Stent-mounted valve prostheses have been successfully implanted in the pulmonic and ...

OBJECTIVES The purpose of this study was to compare two different intensities of vitamin K antagonists (VKA) among patients with mechanical heart valves using meta-analytic techniques. BACKGROUND Patients with mechanical heart valves are at increased risk for valve thrombosis and systemic embolism, which can be reduced by VKA. The range of optimal intensity of VKA is still a matter of debate....

The mitral valve affects the shape and timing of incoming flow to left ventricle heart, establishing a strong central jet that generates vortex ring conserves momentum during cardiac cycle. When is disrupted, regions stasis are introduced increase blood residence time risk thrombus formation. This increased when multiple medical devices combined, as occurs in fraction patients with prostheses e...

Heart valve disease (HVD) is a globally increasing problem and accounts for thousands of deaths yearly. Currently end-stage HVD can only be treated by total valve replacement, however with major drawbacks. To overcome the limitations of conventional substitutes, a new clinical approach based on cell colonization of artificially manufactured heart valves has been developed. Even though this atte...

INTRODUCTION Valvular heart disease (VHD), when severe and prolonged, creates a hemodynamic overload, the consequences of which damage the myocardium leading to heart failure and death if left uncorrected by mechanical intervention. In 1906 Sir William Osler wrote in the sixth edition of his famous textbook “The Principles and Practice of Medicine”, that the prognosis of valvular heart disease ...

Introduction Late complications such as hemolysis and thrombus formation in patients with an implanted prosthetic heart valve have been related to fluid dynamic characteristics [ 11. Specific blood flow patterns such as flow reversal and vortex flow have been considered to contribute to thrombus formation [2]. In order to detect alterations of flow fields around prostheses in humans MR velocity...