Results: 98

Multilayer stents affect the final diameter of aortic aneurysms and maintain renal artery patency for a short time in a swine experimental model

Clinics; 76 (), 2021
OBJECTIVES: We sought to analyze the hemodynamic effects of the multilayer flow-modulated stent (MFMS) in Thoracoabdominal aortic aneurysms (TAAAs). METHODS: The hemodynamic effects of MFMS were analyzed in aortic thoracoabdominal aneurysms in experimental swine models. We randomly assigned 18 pigs to t...

Implante Percutâneo Transeptal de Bioprótese em Disfunção de Prótese Valvar Cirúrgica Mitral - Experiência Multicêntrica Brasileira

Arq. bras. cardiol; 115 (3), 2020
Resumo Fundamento A intervenção percutânea em pacientes com disfunção de prótese biológica mitral apresenta-se como uma alternativa ao tratamento cirúrgico convencional. Objetivo Relatar a primeira experiência brasileira de implante transcateter de bioprótese valve-in-valve mitral via trans...

Comparative Biomechanical Study of Crosslinked Polyethylene Wear with 36-mm Ceramic Femoral Heads and with 32-mm Metal Femoral Heads

Abstract Objective This study aims to compare the in vitro wear rate of crosslinked, high molecular weight polyethylene coupled to 36-mm diameter ceramic heads and 32-mm diameter metal heads. Methods Ceramic-on-polyethylene (36 mm) and metal-on-polyethylene (32 mm) tribological pairs were submitted to ...

Implante percutáneo de válvula pulmonar: a propósito de dos casos colombianos

Arch. cardiol. Méx; 90 (3), 2020
Resumen Los pacientes con cardiopatías congénitas que afectan la continuidad del ventrículo derecho con la arteria pulmonar deben someterse con frecuencia a intervenciones debido a la limitada vida útil de los conductos quirúrgicos, lo que lleva al desarrollo de disfunción ventricular derecha por c...

A 51-year-old Starr-Edwards caged-ball valve

Arch. cardiol. Méx; 90 (3), 2020

Design, manufacture and initial tests of a drug-eluting coronary stent

Gac. méd. Méx; 156 (4), 2020
Abstract Introduction: A drug-eluting coronary stent is being developed at the National Institute of Cardiology of Mexico for the treatment of ischemic heart disease. Objective: To establish the best animal model for the tests, to show the advances in the drug-eluting stent prototype, to assess two dru...

Stentless root replacement versus tissue valves in infective endocarditis - a propensity-score matched study

Abstract Introduction: People with aortic/prosthetic valve endocarditis are a high-risk cohort of patients who present a challenge for all medically involved disciplines and who can be treated by various surgical techniques. Methods: We analyzed the results of treatment of root endocarditis with Medtro...

Custo-efetividade do Stent Farmacológico na Intervenção Coronariana Percutânea no SUS

Arq. bras. cardiol; 115 (1), 2020
Resumo Fundamento O uso do stent farmacológico (SF) comparado ao stent não farmacológico (SNF) na intervenção coronariana percutânea (ICP) reduziu o percentual de reestenose, porém sem impacto na mortalidade, com aumento no custo. A literatura carece de estudos randomizados que comparem economic...

The beneficial effect of anticoagulation in aortic bioprosthesis is associated with its size

Abstract Objective: To evaluate the clinical and echocardiographic outcomes in aortic valve replacement (AVR) patients with aortic bioprosthesis under oral anticoagulation (OA). Methods: Patients who underwent AVR with bioprosthesiswere prospectively enrolled. They were classified based on postoperat...

Design and manufacture of a coronary stent INC-1 and initial tests in experimental animal model

Arch. cardiol. Méx; 90 (2), 2020
Abstract In this paper, we describe our coronary stent (INC-1) design and development, the way that we found the specific characteristics needed for our device including biophysics aspects, design, finite element testing, manufacturing, and mechanic trials, we submitted and animal models experiences. The...