[Coronary artery disease multivessel not amenable to revascularization: contemporary cohort].

Background: Severe diffuse coronary artery disease with anatomy that is not amenable to revascularization represents a poorly studied entity, with a poorly defined prognosis and prevalence, associated with high morbidity and mortality, poor quality of life and high hospitalization rates.

Objective: Due to the limited evidence in this clinical field and the absence of contemporary studies, we decided to explore this line of research, determining epidemiological, clinical and prognostic aspects.

Material And Methods: Analytical, retrospective observational cohort study, carried out in a National Medical Center.

[Follow-up of the patient with pacemakers: Interrogation and basic programming].

Permanent pacemakers are a frequently used therapeutic modality. Its use has had a great impact on the morbidity and mortality and quality of life of patients with heart rhythm disturbances, with an exponential increase observed in recent decades. The use of this strategy presents different phases, in which follow-up throughout the useful life of the device is a fundamental and determinant pillar of the efficacy and safety of this therapeutic modality.

[Ebstein's anomaly with ventricular preexcitation in an adult patient].

Background: Ebstein's anomaly is a rare complex congenital heart disease, first described in 1866 by physician Wilhelm Ebstein, characterized by anatomical and functional malformations of the tricuspid valve and the right ventricle because of inadequate delaminization of the tricuspid valve tissue. By presenting a clinical case and reviewing the literature, we analyzed the approach of an adult patient with Ebstein anomaly with ventricular preexcitation.

Clinical Case: We describe the case of a 34-year-old male patient, with a clinical history of palpitations and dyspnea, and his paraclinics documented Ebstein type B anomaly associated with patent foramen oval and paroxysmal supraventricular tachycardia, Successful radiofrequency ablation was performed and tricuspid valvuloplasty was proposed.

Increment of D-dimer Associated with Immune Thrombotic Thrombocytopenia in ChAdOx1 nCoV-19 Vaccinated Individuals.

Aim Of The Study: Development of thrombocytopenia and thrombosis after administration of the ChAdox1 nCoV-19 (AstraZeneca-Oxford) vaccine has recently been described. This new condition is called vaccine-induced immune thrombotic thrombocytopenia (VITT). Our objective was to summarize case reports on VITT with/without D-dimer increments in AstraZeneca-Oxford vaccinated individuals.

Reporte de caso: hipoglucemia grave como manifestación tardía de síndrome de Sheehan.

Background: Sheehan's syndrome is a hypopituitarism secondary to necrosis of the pituitary gland caused by massive postpartum bleeding. The presentation is frequently amenorrhea and agalactia; hypoglycemia as a solitary presentation is uncommon.

Case Report: 68-year-old female with a history of postpartum hemorrhage 35 years ago.

[Dermatological reactions secondary to the use of personal protective equipment].

Background: During the COVID-19 pandemic, healthcare professionals use personal protective equipment (PPE) on a constant basis and for extended periods, leading to adverse dermatological reactions, a situation little known and studied despite its relevance.

Objective: To determine the risk factors associated with the development of adverse dermatological reactions in health workers using PPE during the COVID-19 pandemic.

Material And Methods: An observational, cross-sectional, analytical study conducted through an online survey that evaluated the association between dermatological reactions and the use of PPE through a descriptive and inferential statistical analysis.

Patterns of allergen sensitization in patients with asthma in Yaqui Valley, Mexico.

Introduction: People who live in highly allergenic regions have a greater risk of being sensitized; therefore, these areas have a higher prevalence of mono and polysensitized patients. The aim of the present study was to investigate the allergen sensitization profiles in patients with asthma in an agricultural zone in Mexico.

Methods: An analytical cross-sectional study was conducted in a secondary care hospital in Obregon City, Mexico.

[Understanding SARS-CoV-2: an analysis of the current pandemic].

In late December 2019, a group of patients with "atypical pneumonia" of viral etiology was reported in Wuhan, China. We now know that coronavirus disease 2019 (COVID-19) is caused by the new coronavirus SARS-CoV-2 that produces an acute disease with respiratory predilection and high contagiousness, whose origin is the result of natural selection between species. The World Health Organization declared this event as a public health emergency of global concern.

Risk factors for three-vessel coronary artery disease in patients of Northwest Mexico.

Introduction: Three-vessel coronary artery disease is an advanced manifestation of atherosclerosis, with high prevalence in Mexico.

Objective: The aim of this study was to describe coronary risk factors in a group of patients with three-vessel coronary artery disease in Northwest Mexico.

Methods: A cross sectional study was conducted on a population with three-vessel coronary artery disease from May 2015 to February 2016.

Chitosan treatment for skin ulcers associated with diabetes.

Infections, ulcerations, gangrene and, in severe cases, extremity amputation, are common complications among diabetic subjects. Various biomaterials have been utilized for the treatment of these lesions. Chitosan is an amino sugar with a low risk of toxicity and immune response.

[Environmental noise levels in 2 intensive care units in a tertiary care centre].

Introduction: The World Health Organisation (WHO) has established a maximum noise level of 40 decibels (dB) for an intensive care unit. The aim of this study was to compare the noise levels in 2 different intensive care units at a tertiary care centre.

Methods: Using a cross-sectional design study, an analysis was made of the maximum noise level was within the intensive coronary care unit and intensive care unit using a digital meter.

[Quality of life in persons with Human Immunodeficiency Virus infection in Mexico].

Background: The evaluation of quality of life related to health (HRQOL) has become an important prognostic indicator in HIV/AIDS. The aim of this study was to determine the impact of socio-demographic, clinical and psychological factors in HRQOL in a group of subjects with HIV/AIDS in northwestern Mexico and determine which variables best predict HRQOL.

Methods: In a cross-sectional study with a sample of 87% of patients receiving care at a clinic for HIV/AIDS in northwestern Mexico between November 2010 to June 2011, we measure the HRQOL using the Tool Medical Outcomes Study HIV Health Survey (MOS-HIV).

[Aplasia cutis congenita associated with epidermolysis bullosa].

Introduction: Aplasia cutis congenita (ACC) is a skin condition of rare presentation, this disease is characterized by absence of skin at birth and associated with facial, skin and bone skull deformities. The diagnosis is mainly clinical.

Case Report: Male 5 days after birth, unique product of primigravida mother and no family history of relevance.

Septic arthritis in adults in a tertiary care center.

Objective: To describe the history, clinical features and microorganisms involved in a group of adult subjects with and without septic arthritis (SA) at a tertiary care in Mexico.

Material And Methods: A cross-sectional descriptive study was conducted on 96 adults with clinical suspicion of AS in one or more joints. In all cases synovial fluid arthrocentesis and culture was performed.

Antenatal use of bosentan and/or sildenafil attenuates pulmonary features in rats with congenital diaphragmatic hernia.

Background: Lung hypoplasia, pulmonary persistent hypertension of the newborn and its morphological changes are the main features in congenital diaphragmatic hernia (CDH). This study was undertaken to investigate if antenatal use of sildenafil and/or bosentan attenuates vascular remodeling, promotes branching, and improves alveolarization in experimental nitrofeninduced CDH.

Methods: Nitrofen (100 mg) was gavage-fed to pregnant rats at post conception day (PCD) 9 to induce CDH.

[Seroprevalence of antinuclear antibodies in blood donors in the Yaqui Valley].

Background: Antinuclear antibodies are immunoglobulins that recognize autologous nuclear and cytoplasmic cellular components. In healthy persons they are not associated with autoimmune disease. However, they may be related to an immune risk phenotype that has not been sufficiently studied.

Arsenic methylation capacity is associated with breast cancer in northern Mexico.

Exposure to environmental contaminants, dietary factors and lifestyles may explain worldwide different breast cancer (BC) incidence. Inorganic arsenic (iAs) in the drinking water is a concern in many regions, such as northern Mexico. Studies in several countries have associated the proportion of urinary monomethylarsenic (%MMA) with increased risks for many As-related diseases, including cancer.

[Anthropometric measures in urban child population from 6 to 12 years from the northwest of México].

Background: The degree of overweight-obesity varies according to the conditions of each population and depending on geographical area, race or ethnicity, socioeconomic status, and susceptibility of each individual. The aim of this study was to determine anthropometric measures in urban child population from 6 to 12 years of Ciudad Obregón, Sonora.

Methods: We studied 684 schoolchildren from 6 to 12 years of age, of both genders in the urban area of Ciudad Obregón, Sonora.

[Reasons for abandonment of hormone replacement therapy with tibolone in menopausal women].

Background: Hormone replacement therapy (HRT) with tibolone used in the management of menopause has low rates of acceptance and compliance in the first year. Few studies analyze the reasons for abandoning the use of tibolone.

Objective: To analyze the reasons for abandoned tibolone hormone replacement therapy in postmenopausal women and the effects of the drug through the years in the treatment.

[Cohesion and family adaptability in women with epilepsy: cross-sectional study].

Objective: To test the hypothesis that women with epilepsy come from families with poor cohesion and adaptability to the disease, compared with healthy women.

Design: Cross-sectional study.

Setting: A retrospective study was done on 263 women from a neurology outpatient department and a family medicine unit from the Mexican Social Security Institute in Sonora (Mexico) between 2010 and 2011.

[Adverse events in patients from a pediatric hospital.].

Background: detection of adverse events is part of the safety management in hospitalized patients. The objective of this study was to describe the incidence of adverse events that occurred in a pediatric hospital. Methods: cross-sectional study of the adverse events occurred in a pediatric hospital from 2007 to 2009.

[Ankle-brachial index associated with diabetic foot: case-control study].

Introduction: The diabetic foot has been associated with substantial morbidity and mortality in diabetic patients. The ankle-brachial index is a simple diagnostic method for peripheral arterial disease.

Objective: to evaluate the usefulness of the physical ankle-brachial index and known risk factors in the development of diabetic foot.

Predictive factors of difficult airway with known assessment scales.

Background: difficult intubation is defined as the need for more than three attempts for intubation or more than 10 min to accomplish it, a situation that occurs in 1.5-8% of general anesthetic procedures. The aim of this study was to evaluate the predictive factors of difficult airway with known assessment scales.

[Transcutaneous electrical nervous stimulation in the prognosis of Bell's palsy].

Background: The peripheral face palsy (PFP) is the commonest acute cranial neuropathy. The PFP has a showy clinical pattern which contrasts with a favorable course. Our objective was to determine the sensitivity and specificity for the nervous excitability test (NET) with transcutaneous electrical nerve stimulation (TENS) and the time required to obtain face symmetry.

Anxiety in preoperative anesthetic procedures.

Background: Preoperative anxiety is a common and poorly evaluated condition in patients who will undergo an anesthetic and surgical intervention. The objective of this study was to determine the prevalence of anxiety in a group of patients undergoing elective surgery, as assessed by the Amsterdam Anxiety Preoperative and Information (AAPI) scale.

Methods: We studied 135 patients scheduled for elective surgery applying the AAPI scale 24 h before the surgical procedure to evaluate the presence of anxiety and patient characteristics.