Marco-Antonio Martínez-Ríos

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The recommendations set forth in this report are those of the Task Force Members and do not necessarily reflect the official position of the American College of Cardiology. *Co-chairpersons. †Dr Shanti Mendis of the World Health Organization participated in the task force in her personal capacity, but this does not represent WHO approval of this document at(More)
The aim of the present study was to establish the gene frequency of six polymorphisms of the ABCB1, CYP3A5, CYP2C19, and P2RY12 genes in a population resident of Mexico City. The proteins encoded by these genes have been associated with the absorption, and biotransformation of clopidogrel. The ABCB1 T3435C, CYP3A5 V3* A6986G, P2RY12 G52T, P2RY12 C34T,(More)
OBJECTIVE The objective of this study was to establish the role of the TLR-4 gene polymorphisms in individuals in risk of developing ACS. METHODS The study included 457 Mexican patients with ACS and 283 control individuals. The TLR-4 Asp299Gly and TLR-4 Thr399Ile single nucleotide polymorphisms were genotyped using 5' exonuclease TaqMan genotyping assays(More)
OBJECTIVE To describe the design of a protocol of intracoronary autologous transplant of bone marrow-derived stem cells for acute ST-elevation myocardial infarction (STEMI) and to report the safety of the procedure in the first patients included. METHODS The TRACIA study was implemented following predetermined inclusion and exclusion criteria. The(More)
Transesophageal echocardiography has advantages over transthoracic technique in defining morphology of atrial structures. Even though real time three-dimensional echocardiographic imaging is a reality, the off-line reconstruction technique usually allows to obtain higher spatial resolution images. The purpose of this study was to explore the accuracy of(More)
Background. Thrombin has been implicated as a key molecule in atherosclerotic progression. Clinical evidence shows that thrombin generation is enhanced in atherosclerosis, but its role as a risk factor for coronary atherosclerotic burden has not been proven in coronary artery disease (CAD) stable patients. Objectives. To evaluate the association between TAT(More)
and initial results of percutaneous aortic valve implanta-tion including selection of the transfemoral or transapical approach in patients with severe aortic stenosis. Myocardial calcification is an unusual entity. The first report appeared in 1919 when Scholz 1 observed a calcified heart in an X-ray film. A heart may develop calcifications in different(More)
Intracardiac echocardiography (ICE) is a relatively new method of ultrasound images useful during cardiac percutaneous interventional procedures. The first human experience with this method was published in 2000 and, since then, several original trials have enrolled this useful method, proving similar and more useful than transesophageal echocardiography in(More)
Cardiac transplantation is a well defined therapy for end stage heart failure. After the first year of transplantation, allograft coronary artery disease (ACAD) is the second main cause of death. The ACAD is defined as a diffuse process affecting the entire length of epicardial vessels. Once ACAD has been established, treatments such as coronary(More)
Palabras clave: Fibrilación atrial, ablación con catéter, electrofisiología cardíaca, cateterismo transeptal. SUMMARY Objective: To analyze the results of radiofrequency catheter ablation (RFCA) of the pulmonary veins (PV) in patients with paroxysmal atrial fibrillation (PAF). Material and methods: We describe 14 patients (38±12 years, interval 8-52; 11(More)
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