A randomized trial of antithrombotic therapy in patients with acute coronary syndrome and coronary ectasia.

Background: Coronary artery ectasia (CAE) of the culprit infarct artery is a rare finding in patients with acute coronary syndrome (ACS). While anticoagulants have been suggested to reduce recurrent events, the optimal antithrombotic therapy remains unclear.

Methods: OVER-TIME was an open label, exploratory, randomized controlled trial comparing dual antiplatelet therapy (DAPT; acetyl-salicylic-acid 100mg plus clopidogrel 75mg daily) versus single antiplatelet (SAPT, clopidogrel 75mg) plus DOAC (rivaroxaban 15mg) in patients with ACS and CAE.

The gene rs11362 genetic variant is associated with risk of developing CAD: a case-control study.

Background: In the present study, we evaluated whether gene polymorphisms are associated with the presence of coronary artery disease (CAD).

Methods: Two rs11362 , and rs1800972 gene polymorphisms of gene were genotyped by 5'exonuclease TaqMan assays in 219 patients with CAD and 522 control individuals.

Results: The distribution of rs1800972 polymorphisms was similar in patients with CAD and healthy controls.

Coronary stent and prolonged dual antiplatelet therapy. A longitudinal study.

Introduction: In current European guidelines for the management of myocardial infarction after coronary stent placement, there is no consensus on dual antiplatelet therapy (DAPT) ideal duration to prevent stent thrombosis-restenosis without significantly increasing the bleeding risk.

Objective: To report the percentage of major bleeding and presence of major cardiovascular events associated with prolonged DAPT in patients recruited at the National Institute of Cardiology, treated with primary percutaneous coronary intervention and stent.

Methods: A longitudinal, prospective, observational, non-experimental, descriptive study was carried out.

Dual Antiplatelet Therapy Versus Antiplatelet Monotherapy Plus Oral Anticoagulation in Patients with Acute Coronary Syndrome and Coronary Artery Ectasia: Design and Rationale of OVER-TIME Randomized Clinical Trial.

Introduction: The optimal anti-thrombotic therapy to prevent recurrent ischemic events in patients with acute coronary syndrome and coronary artery ectasia (CAE) remains unclear.

Aim: To assess the efficacy and safety of antiplatelet plus anticoagulant therapy versus dual antiplatelet therapy in patients with acute coronary syndromes and coronary artery ectasia.

Methods: OVER-TIME is an investigator initiated, exploratory, open label, single center, randomized clinical trial comparing dual antiplatelet therapy (acetyl-salicylic acid plus a P2Y12 inhibitor) with the combination of an antiplatelet monotherapy (a P2Y12 inhibitor) plus a low dose anticoagulant (rivaroxaban, 15mg oral dose) for the prevention of recurrent ischemic events among patients with CAE.

The rs4783961 and rs708272 genetic variants of the CETP gene are associated with coronary artery disease, but not with restenosis after coronary stenting.

Objective: We evaluated whether cholesteryl ester transfer protein (CETP) gene polymorphisms are associated with the presence of coronary artery disease (CAD) and/or restenosis in patients with coronary stent.

Methods: Two polymorphisms of the CETP gene [-971 A/G (rs4783961), and Taq1B A/G (rs708272)] were genotyped by 5'exonuclease TaqMan assays in 219 patients with CAD (66 patients with restenosis and 153 without restenosis) and 607 control individuals.

Results: The distribution of polymorphisms was similar in patients with and without restenosis.

[Psychological distress and unsatisfied information needs in heart failure patients and ventricular dysfunction without previously diagnosed psychiatric disorder. Cross-sectional study in a national reference center].

Introduction: Heart failure (HF) is a chronic disease that acutely and progressively reduces physical functionality. The patient commonly suffers from intermittent relapses that increase the likelihood of comorbidities such as chronic insomnia, cognitive impairment, alterations in sexual response, psychological distress, symptoms of anxiety and depression disorder, and decreased self-care behaviors. The objective of this study was to identify the main needs for psychological support in patients with HF.

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

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 stent platform was cobalt-chromium L605 (Co-Cr), with struts thickness of 80 μm, balloon expandable. We placed the coronary stent INC-1 on a rabbit and dog models so we can evaluate efficacy and security of the device in relationship to its biomechanical properties including navigation capacity, traceability, symmetric expansion, and safety, as well as endothelial attachment, thrombogenicity, and lack of involvement of secondary branches in these models.

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

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 drugs' antiproliferative activity and histological results.

Method: Smooth muscle cell culture tests were performed in order to assess sirolimus and paclitaxel antiproliferative properties.

A randomized controlled trial of lung ultrasound-guided therapy in heart failure (CLUSTER-HF study).

Background: Lung ultrasound (LUS) has emerged as a new tool for the evaluation of congestion in heart failure (HF); incorporation of LUS during follow-up may detect congestion earlier and prompt interventions to prevent hospitalizations. The aim of this study was to test the hypothesis that the incorporation of LUS during follow-up of patients with HF may reduce the rate of adverse events compared with usual care.

Methods: In this single-blinded, randomized controlled trial, patients were randomized into an LUS-guided arm or control arm.

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

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 stent platform was cobalt-chromium L605 (Co-Cr), with struts thickness of 80 µm, balloon expandable. We placed the coronary stent INC-1 on a rabbit and dog models so we can evaluate efficacy and security of the device in relationship to its biomechanical properties including navigation capacity, traceability, symmetric expansion and safety.

Histological and Mechanical Behavior of INC 01 and 02 Bare Metal Stents Against a Commercial Stent: A Preclinical Study in a Porcine Model.

Background: PCI is an expensive procedure in our population and it implies a huge cost for the institutions and National Health Service.

Aim Of The Study: The main objective was to evaluate the technical and biological success of two stents designed in Mexico.

Methods: Ten York pigs, 4-6 months of age, underwent implantation of the bare metal INC-01 (10 stents) and INC-02 (6 stents) coronary stent in addition to a conventional commercial stent (10 stents).

THE BRANCHED-CHAIN AMINO ACID TRANSAMINASE 1 -23C/G POLYMORPHISM CONFERS PROTECTION AGAINST ACUTE CORONARY SYNDROME.

Background: Previous studies have shown an association between polymorphisms of the BAT1-NF-κB inhibitor-like-1 (NFKBIL1)-LTA genomic region and susceptibility to myocardial infarction and acute coronary syndrome (ACS).

Objective: The objective of the study was to study the role of three polymorphisms in the BAT1, NFKBIL1, and LTA genes on the susceptibility or protection against ACS; we included a group of cases-controls from Central Mexico.

Methods: The BAT1 rs2239527C/G, NFKBIL1 rs2071592T/A, and LTA rs1800683G/A polymorphisms were genotyped using a 5' TaqMan assay in a group of 625 patients with ACS and 617 healthy controls.

HUMAN PILOT STUDY OF BARE-METAL STENT: INC-01.

Background: The cost of performing a percutaneous coronary intervention is considerably high for the patient as well as for health systems, which have promoted the development of local technology to help meet the need for these devices.

Methods: The INC-01 bare-metal stent was developed at the National Institute of Cardiology in Mexico City and was first implanted on porcine models with technical success in 100% of the evaluated parameters.

Presentation Of Cases: We present the first three cases of patients with ischemic heart disease, to whom the INC-01 bare-metal stent was implanted.

Reaching blood pressure guideline targets with the CNIC polypill in patients with a previous cardiovascular event in Mexico: a analysis of the SORS study.

To determine the effectiveness of Centro Nacional de Investigaciones Cardiovasculares (CNIC)-polypill (acetylsalicylic acid 100 mg, ramipril 5/10 mg, simvastatin 40 mg) in achieving blood pressure (BP) goals. A multicenter, observational, one cohort, prospective study. BP targets were analyzed in patients with cardiovascular disease after 12-months treatment with the CNIC polypill.

miR-196a2 (rs11614913) polymorphism is associated with coronary artery disease, but not with in-stent coronary restenosis.

Objective: The aim of the study was to evaluate the association of miRNA-146a G/C (rs2910164), and miRNA-196a2 C/T (rs11614913) polymorphisms with the presence of coronary artery disease (CAD) and/or restenosis in patients with coronary stent.

Materials And Methods: The polymorphisms were determined in 218 patients with CAD who underwent coronary artery stenting (66 with restenosis and 152 without restenosis) and 611 healthy controls using 5' exonuclease TaqMan assays.

Results: The distribution of both polymorphisms was similar in patients with and without restenosis.

The -44 C/G (rs1800972) polymorphism of the β-defensin 1 is associated with increased risk of developing type 2 diabetes mellitus.

Background: The aim of this study was to establish the association of two polymorphisms of the β-defensin 1 gene (DEFB1, OMIM#602056) with the risk of developing type 2 diabetes mellitus (T2DM) in a group of Mexican patients.

Methods: The 5'UTR -20 G/A, and -44 C/G polymorphisms of DEFB1 gene were genotyped by 5' exonuclease TaqMan assays in a group of 252 patients with T2DM and 522 healthy control.

Results: Under dominant and additive models adjusted for the risk factors, the C allele of the -44 C/G polymorphism was associated with increased risk of T2DM (OR = 1.

Idiopathic Lead Migration: Concept and Variants of an Uncommon Cause of Cardiac Implantable Electronic Device Dysfunction.

Objectives: This cumulative case study was performed to properly address the possible mechanisms, forms, and consequences of "twiddler's," "reel," and "ratchet" syndromes.

Background: Twiddler's, reel, and ratchet syndromes are rare entities responsible for lead displacement of cardiac implantable electronic devices (CIED).

Methods: From 2007 to 2012, 1,472 CIED were implanted at our center.

CETP and LCAT Gene Polymorphisms Are Associated with High-Density Lipoprotein Subclasses and Acute Coronary Syndrome.

We evaluated whether CETP and LCAT gene polymorphisms are statistically associated with the high-density lipoprotein (HDL) size distribution, the cholesterol level of HDL subclasses, and the acute coronary syndrome (ACS) susceptibility. Two CETP gene polymorphisms (rs4783961 and rs708272) and one LCAT polymorphism (rs2292318) were genotyped by 5' exonuclease TaqMan assays in 619 patients with ACS and 607 control individuals. For HDL analysis, a subgroup of 100 healthy individuals was recruited; the HDL subclasses were separated via ultracentrifugation and polyacrylamide gradient gel electrophoresis under native conditions.

Reperfusion of myocardial infarction in India: Notions for México.

In India and México, cardiovascular diseases are the first cause of death and potential years of life lost. Close similarities exist between these two countries when facing the difficulties to establish a universal reperfusion program for ST elevation myocardial infarction (STEMI). This paper describes the situation of STEMI treatment in both countries, and examines the lessons that Mexico's health care system could adopt from the recent advances accomplished by the STEMI initiative in India.

The NLRP3 and CASP1 gene polymorphisms are associated with developing of acute coronary syndrome: a case-control study.

The protein products of NLRP3 and CASP1 genes are involved in the cleavage of pro-IL-1B and pro-IL-18 leading to the active cytokines, which play an important role in the development of the acute coronary syndrome (ACS). The aim of the present study was to evaluate whether NLRP3 and CASP1 gene polymorphisms are biomarkers of ACS susceptibility in Mexican population. Two polymorphisms of the CASP1 gene [G+7/in6A (rs501192) and A10370-G Exon-6 (rs580253)] and one of the NLRP3 gene [UTR'3 G37562-C (rs10754558)] were genotyped by 5' exonuclease TaqMan assays in a group of 617 patients with ACS and 609 control individuals.