Factor XII Deficiency in Mexico: High Prevalence in the General Population and Patients with Venous Thromboembolic Disease.

Introduction: Thrombosis is one of the leading causes of morbidity and mortality worldwide. Venous thromboembolic disease (VTD) is considered a new epidemic. FXII deficiency is supposed to be a cause of thrombosis.

[Treatment of cardiogenic shock due to right ventricular involvement].

The right ventricle is susceptible to changes in preload, afterload, and contractility. The answer is its dilation with dysfunction/acute failure; filling is limited to the left ventricle and cardiac output. Systemic venous congestion is retrograde to the right heart, it is involved in the genesis of cardiogenic shock due to right ventricle involvement.

[Six minute walk test: From normal to morbid obesity subject].

Introduction: Morbid obesity is associated with alterations in the ability to walk, however, the behavior of the 6-minute walk test in subjects with increases in body mass index is unknown.

Objective: To describe the behavior of the 6-minute walk test in subjects with normal body mass index to morbid obesity.

Methods: Through an analytical cross-sectional design, subjects of both genders from 18 to 60 years old with body mass index were studied: Normal (BMI:18.

Post-cardioversion time Course of Atrial Remodeling Markers and their Association with Recurrence in Subjects with Long-standing, Persistent Atrial Fibrillation.

Background: Activation of the renin-angiotensin-aldosterone axis with elevation of inflammatory markers and the resulting fibrosis play a very important role in atrial remodeling in patients with atrial fibrillation (AF), which is associated with post-cardioversion recurrence.

Aim Of The Study: The purpose of the study was to describe the time course of angiotensin II (AngII), aldosterone, and of the amino terminal pro-peptide of type III pro-collagen (PIIINP) following cardioversion, and their association with arrhythmia recurrence.

Methods: Ninety-nine subjects with long-standing, persistent, non-valvular atrial fibrillation who underwent successful electrical cardioversion were included, with a 6 month follow up.

["Follow up" strategy in the management of hospital stay].

Background: In countries with emerging economies, the adequate and efficient management of resources is a priority, through strategies to reduce prolonged stay, increase the availability of beds, maximize profitability and reduce iatrogenic complications.

Objective: The purpose of the study was to evaluate the effect of the "Follow up" strategy (FU) on the main indicators of the hospitalization process.

Material And Methods: A cross-sectional, comparative study was developed to evaluate the impact of the FU strategy on the indicators: hospital admissions and discharges, average days of hospital stay (DEH), percentage of hospital occupancy (OH), bed substitution interval (ISC), bed turnover rate (CRI) and prolonged hospital stay (EHP).

[Characterization of gas exchange parameters in Mexico City].

Background: At high altitude the gas exchange is impaired, in the moderate altitude of Mexico City they are not yet defined.

Objective: To characterize the gas exchange in the moderate altitude of Mexico City.

Material And Methods: Through an analytical cross-sectional study, subjects born and inhabitants of Mexico City, both genders, aged 20 to 59 years without cardiopulmonary disease, were studied.

[Pulmonary arterial hypertension from the risk assessment to combined treatment].

This paper shows the importance of the guideline clinical practice as well as the centers for comprehensive care of pulmonary arterial hypertension. The current treatment of pulmonary arterial hypertension is analyzed according to its severity, stratified through the evaluation of the multiple parameters of risk and its mortality to 1 year. The prognosis of the disease is considered and the place of the combined treatment indicated in sequential manner or from the beginning.

Left atrial longitudinal strain by speckle tracking as independent predictor of recurrence after electrical cardioversion in persistent and long standing persistent non-valvular atrial fibrillation.

Atrial fibrillation (AF) is the most common arrhythmia in humans. After successful cardioversion, there is a recurrence of 60% due to atrial remodeling, and it has been shown that the global peak atrial longitudinal strain (GPALS) is decreased in these subjects. The aim of this study was to evaluate the predictive value of GPALS for AF recurrence.

[Pulmonary thromboembolism: Recent experience of 4 years at a cardiology hospital].

It comprised a series of cases over a period of 4 years, held at the Hospital of Cardiology of the Centro Médico Nacional Siglo XXI, IMSS. From 2008 to 2011, admitted to Emergency 184 patients with suspected pulmonary embolism, of which 41 were removed; of the 143 remaining cases, only 127 patients was diagnosed with PE. The other 16 patients had other diagnoses.

Oxidative Stress State Is Associated with Left Ventricular Mechanics Changes, Measured by Speckle Tracking in Essential Hypertensive Patients.

The oxidative stress state is characterized by an increase in oxygen reactive species that overwhelms the antioxidant defense; we do not know if these pathological changes are correlated with alterations in left ventricular mechanics. The aim was correlating the oxidative stress state with the left ventricular global longitudinal strain (GLS) and the left ventricular end diastolic pressure (LVEDP). Twenty-five patients with essential hypertension and 25 controls paired by age and gender were studied.

[Concordance between central venous and arterial blood gases in post-surgical myocardial revascularization patients in stable condition].

Objective: The concordance between the parameters of arterial and central venous blood gases has not been defined yet. We studied the concordance between both parameters in post-surgical myocardial revascularization patients in stable condition.

Methods: Consecutive subjects were studied in a cross-sectional design.

[Clinical utility of inhaled iloprost in pulmonary arterial hypertension].

Inhaled iloprost is a drug from the group of prostacyclins used in the treatment of pulmonary arterial hypertension. Its efficacy and safety have allowed its use as monotherapy and combination therapy. This review describes the product characteristics, amenable to treatment groups, and updated clinical evidence of drug use.

[The evaluation and treatment of a patient with atrial fibrillation].

Atrial fibrillation (AF) is the most common arrhythmia in humans. The treatment can be one of the most difficult. It's true that AF itself it's a no-lethal arrhythmia but is often a cause of symptoms that can lead the patient to worsening in his quality of life thet predispose to serious conditions like thromboembolic events and heart failure.

Non-ST-elevation acute myocardial infarction secondary to antiphospholipid antibody syndrome in an adolescent female.

Background: antiphospholipid antibody syndrome (APS) is characterized by the association among arterial or venous thrombosis, recurrent pregnancy loss, thrombocytopenia and the presence of circulating antiphospholipid antibodies. Antiphospholipid antibody-related thrombosis seems to constitute a significant proportion of childhood thrombosis. We present the case of an adolescent female with non-ST-elevation acute myocardial infarction secondary to APS.

Ipact of bezafibrate treatment in patients with hyperfibrinogenemia and ST-elevation acute myocardial infarction: a randomized clinical trial.

Background: Hyperfibrinogenemia is a predictor of cardiovascular events in healthy subjects and in patients with chronic ischemic heart disease. Bezafibrate decreases fibrinogen levels and also the incidence of major cardiovascular events in primary prevention, but its effects in acute coronary syndrome are unknown.

Methods: This is a randomized, controlled clinical trial with conventional therapy.