Centro de Salud Casa del Barco
Hospital / health systemValladolid, Spain
Research output, citation impact, and the most-cited recent papers from Centro de Salud Casa del Barco (Spain). Aggregated across the NobleBlocks index of 300M+ scholarly works.
Top-cited papers from Centro de Salud Casa del Barco
At the end of a rush lasting over half a century, in which CMOS technology has been experiencing a constant and breathtaking increase of device speed and density, Moore's law is approaching the insurmountable barrier given by the ultimate atomic nature of matter. A major challenge for 21st century scientists is finding novel strategies, concepts and materials for replacing silicon-based CMOS semiconductor technologies and guaranteeing a continued and steady technological progress in next decades. Among the materials classes candidate to contribute to this momentous challenge, oxide films and heterostructures are a particularly appealing hunting ground. The vastity, intended in pure chemical terms, of this class of compounds, the complexity of their correlated behaviour, and the wealth of functional properties they display, has already made these systems the subject of choice, worldwide, of a strongly networked, dynamic and interdisciplinary research community. Oxide science and technology has been the target of a wide four-year project, named Towards Oxide-Based Electronics (TO-BE), that has been recently running in Europe and has involved as participants several hundred scientists from 29 EU countries. In this review and perspective paper, published as a final deliverable of the TO-BE Action, the opportunities of oxides as future electronic materials for Information and Communication Technologies ICT and Energy are discussed. The paper is organized as a set of contributions, all selected and ordered as individual building blocks of a wider general scheme. After a brief preface by the editors and an introductory contribution, two sections follow. The first is mainly devoted to providing a perspective on the latest theoretical and experimental methods that are employed to investigate oxides and to produce oxide-based films, heterostructures and devices. In the second, all contributions are dedicated to different specific fields of applications of oxide thin films and heterostructures, in sectors as data storage and computing, optics and plasmonics, magnonics, energy conversion and harvesting, and power electronics.
RATIONALE: Obstructive sleep apnea (OSA) is a risk factor for type 2 diabetes that adversely impacts glycemic control. However, there is little evidence about the effect of continuous positive airway pressure (CPAP) on glycemic control in patients with diabetes. OBJECTIVES: To assess the effect of CPAP on glycated hemoglobin (HbA1c) levels in patients with suboptimally controlled type 2 diabetes and OSA, and to identify its determinants. METHODS: In a 6-month, open-label, parallel, and randomized clinical trial, 50 patients with OSA and type 2 diabetes and two HbA1c levels equal to or exceeding 6.5% were randomized to CPAP (n = 26) or no CPAP (control; n = 24), while their usual medication for diabetes remained unchanged. MEASUREMENTS AND MAIN RESULTS: HbA1c levels, Homeostasis Model Assessment and Qualitative Insulin Sensitivity Check Index scores, systemic biomarkers, and health-related quality of life were measured at 3 and 6 months. After 6 months, the CPAP group achieved a greater decrease in HbA1c levels compared with the control group. Insulin resistance and sensitivity measurements (in noninsulin users) and serum levels of IL-1β, IL-6, and adiponectin also improved in the CPAP group compared with the control group after 6 months. In patients treated with CPAP, mean nocturnal oxygen saturation and baseline IL-1β were independently related to the 6-month change in HbA1c levels (r(2) = 0.510, P = 0.002). CONCLUSIONS: Among patients with suboptimally controlled type 2 diabetes and OSA, CPAP treatment for 6 months resulted in improved glycemic control and insulin resistance compared with results for a control group. Clinical trial registered with www.clinicaltrials.gov (NCT01801150).
Dengue is a mosquito-borne viral disease that is a major public health problem worldwide. In 2004, the Pediatric Dengue Cohort Study was established in Managua, Nicaragua, to study the natural history and transmission of dengue in children. Here, the authors describe the study design, methods, and results from 2004 to 2008. Initially, 3,721 children 2-9 years of age were recruited through door-to-door visits. Each year, new children aged 2 years are enrolled in the study to maintain the age structure. Children are provided with medical care through the study, and data from each medical visit are recorded on systematic study forms. All participants presenting with suspected dengue or undifferentiated fever are tested for dengue by virologic, serologic, and molecular biologic assays. Yearly blood samples are collected to detect inapparent dengue virus infections. Numerous information and communications technologies are used to manage study data, track samples, and maintain quality control, including personal data assistants, barcodes, global information systems, and fingerprint scans. Close collaboration with the Nicaraguan Ministry of Health and use of almost entirely local staff are essential components for success. This study is providing critical data on the epidemiology and transmission of dengue in the Americas needed for future vaccine trials.
INTRODUCTION: Sleep apnea is one of the most frequent manifestations of respiratory obstruction. Historically this clinical entity has stimulated the production of numerous valuable contributions with one purpose in mind: the improvement of airway permeability. A multi-disciplinary approach is required to define the problem in anatomic and functional terms to avoid a tracheostomy and prevent long-term sequels. We decided on an approach that focuses on improving the projection of the tongue in the posterior pharynx; by lengthening the mandible and bringing the muscular insertions of the floor of the mouth forward, the antero-posterior dimensions of the airway are increased. OBJECTIVE: To evaluate mandibular distraction osteogenesis as a simple mandibular lengthening procedure useful as a definite treatment in patients with obstructive sleep apnea. MATERIAL AND METHODS: The series consisted of 15 consecutive patients, divided in four groups. Patients with acute upper airway obstruction who required endotracheal intubation, patients with no acute upper airway obstruction but with severe respiratory distress, patients with milder degrees of airway obstruction, and patients with long-term tracheostomies. Therapeutic interventions were performed according to the findings of each group. RESULTS: The patients were evaluated according to cephalometric analysis, polysomnograms, nasopharyngoscopy, and clinical data. Significant changes were seen in the cephalometric studies. There were no postoperative episodes of apnea; clinical improvement occurred in all patients and decannulation was possible in all patients. CONCLUSION: Mandibular distraction is a safe and reliable procedure for treating patients with obstructive sleep apnea.
Non-melanoma skin cancer (NMSC) is the most common form of cancer in the Caucasian population. Among NMSC types, basal cell carcinoma (BCC) has the highest incidence and squamous cell carcinoma (SCC) is less common although it can metastasize, accounting for the majority of NMSC-related deaths. Treatment options for NMSC include both surgical and non-surgical modalities. Even though surgical approaches are most commonly used to treat these lesions, Photodynamic Therapy (PDT) has the advantage of being a non-invasive option, and capable of field treatment, providing optimum cosmetic outcomes. Numerous clinical research studies have shown the efficacy of PDT for treating pre-malignant and malignant NMSC. However, resistant or recurrent tumors appear and sometimes become more aggressive. In this sense, the enhancement of PDT effectiveness by combining it with other therapeutic modalities has become an interesting field in NMSC research. Depending on the characteristics and the type of tumor, PDT can be applied in combination with immunomodulatory (Imiquimod) and chemotherapeutic (5-fluorouracil, methotrexate, diclofenac, or ingenol mebutate) agents, inhibitors of some molecules implicated in the carcinogenic process (COX2 or MAPK), surgical techniques, or even radiotherapy. These new strategies open the way to a wider improvement of the prevention and eradication of skin cancer.
Elevated plasma bilirubin levels are a frequent clinical finding. It can be secondary to alterations in any stage of its metabolism: (a) excess bilirubin production (i.e., pathologic hemolysis); (b) impaired liver uptake, with elevation of indirect bilirubin; (c) impaired conjugation, prompted by a defect in the UDP-glucuronosyltransferase; and (d) bile clearance defect, with elevation of direct bilirubin secondary to defects in clearance proteins, or inability of the bile to reach the small bowel through bile ducts. A liver lesion of any cause reduces hepatocyte cell number and may impair the uptake of indirect bilirubin from plasma and diminish direct bilirubin transport and clearance through the bile ducts. Various analytical methods are currently available for measuring bilirubin and its metabolites in serum, urine and feces. Serum bilirubin is determined by (1) diazo transfer reaction, currently, the gold-standard; (2) high-performance liquid chromatography (HPLC); (3) oxidative, enzymatic, and chemical methods; (4) direct spectrophotometry; and (5) transcutaneous methods. Although bilirubin is a well-established marker of liver function, it does not always identify a lesion in this organ. Therefore, for accurate diagnosis, alterations in bilirubin concentrations should be assessed in relation to patient anamnesis, the degree of the alteration, and the pattern of concurrent biochemical alterations.
Costly bankruptcy and incomplete markets cause inefficient liquidity hoarding. Banks are unable to trade contingent claims to liquidity, so they raise cash by selling illiquid assets on spot markets. Such trading increases asset-price volatility and creates the incentive to hoard liquidity. Hoarding creates a second inefficiency: the aggregate level of liquidity is inefficient too. A lender of last resort can implement the constrained-efficient allocation, but only if it intervenes so aggressively that it shuts down the private provision of liquidity altogether, becoming in effect the lender of first resort.
OBJECTIVES: The aims of this study were to compare in participants with and without metabolic syndrome (1) bone mineral density (BMD), (2) prevalent vertebral and nonvertebral fractures, and (3) calciotropic hormones and bone turnover markers and to examine the association of each component of metabolic syndrome with bone parameters. METHODS: A cross-sectional study (495 men and 1,013 women) from the Camargo Cohort Study was conducted. A multivariable regression approach was used to analyze the relationship between the components of metabolic syndrome and bone parameters. RESULTS: Women with metabolic syndrome had higher age-adjusted BMD at all localizations (P < 0.0001) than did women without metabolic syndrome. Adjusting for body mass index canceled out this difference at the spine and femoral neck, although borderline significance persisted at the total hip. Moreover, in regression analyses, waist circumference (P < 0.0001) and hypertension (P between 0.002 and <0.0001) highly correlated with BMD at the three sites. However, no significant differences in BMD were found in men between those with and without metabolic syndrome. No differences in the prevalence of vertebral or nonvertebral fractures between participants with metabolic syndrome and controls were found for either sex. 25-Hydroxyvitamin D was significantly lower (P < 0.0001) and parathyroid hormone was significantly higher (P < 0.0001) in women with metabolic syndrome than in women without metabolic syndrome, whereas no differences were seen in men. Propeptide of type I collagen and C-terminal telopeptide of type I collagen were significantly lower in participants with metabolic syndrome than in controls in either sex. CONCLUSIONS: Women with metabolic syndrome show higher BMD than controls do, mainly driven by their higher body weight. Bone remodeling in these women is lower. Despite the greater bone mass and lower bone turnover, fracture prevalence is not reduced, suggesting worse bone quality and/or higher tendency to fall. No differences in BMD or fractures were seen in men, suggesting that the impact of metabolic syndrome on bone is sex dependent.
The Spanish Guideline on the Management of Asthma, better known by its acronym in Spanish GEMA, has been available for more than 20 years. Twenty-one scientific societies or related groups both from Spain and internationally have participated in the preparation and development of the updated edition of GEMA, which in fact has been currently positioned as the reference guide on asthma in the Spanish language worldwide. Its objective is to prevent and improve the clinical situation of people with asthma by increasing the knowledge of healthcare professionals involved in their care. Its purpose is to convert scientific evidence into simple and easy-to-follow practical recommendations. Therefore, it is not a monograph that brings together all the scientific knowledge about the disease, but rather a brief document with the essentials, designed to be applied quickly in routine clinical practice. The guidelines are necessarily multidisciplinary, developed to be useful and an indispensable tool for physicians of different specialties, as well as nurses and pharmacists. Probably the most outstanding aspects of the guide are the recommendations to: establish the diagnosis of asthma using a sequential algorithm based on objective diagnostic tests; the follow-up of patients, preferably based on the strategy of achieving and maintaining control of the disease; treatment according to the level of severity of asthma, using six steps from least to greatest need of pharmaceutical drugs, and the treatment algorithm for the indication of biologics in patients with severe uncontrolled asthma based on phenotypes. And now, in addition to that, there is a novelty for easy use and follow-up through a computer application based on the chatbot-type conversational artificial intelligence (ia-GEMA). La Guía Española para el Manejo del Asma, mejor conocida por su acrónimo en español, GEMA, está a nuestra disposición desde hace más de veinte años. Veintiuna sociedades científicas o grupos relacionados, tanto de España como de otros países, han participado en la preparación y desarrollo de la edición actualizada de GEMA que, de hecho, se ha posicionado en la actualidad a nivel mundial como la guía de referencia sobre asma en lengua española. Su objetivo es prevenir y mejorar la situación clínica de las personas con asma, aumentando el conocimiento de los profesionales sanitarios involucrados en su cuidado. Su propósito es convertir la evidencia científica en recomendaciones prácticas sencillas y fáciles de seguir. Por lo tanto, no se trata de una monografía que reúna todo el conocimiento científico sobre la enfermedad, sino más bien de un documento conciso con lo esencial, diseñado para ser aplicado rápidamente en la práctica clínica de rutina. Las recomendaciones son necesariamente multidisciplinares, están desarrolladas para ser útiles y una herramienta indispensable para médicos de diferentes especialidades, así como para profesionales de enfermería y farmacia. Seguramente, los aspectos más destacados de la guía son las recomendaciones para: establecer el diagnóstico del asma utilizando un algoritmo secuencial basado en pruebas diagnósticas objetivas; el seguimiento de los pacientes, preferentemente basado en la estrategia de lograr y mantener el control de la enfermedad; el tratamiento según el nivel de gravedad del asma utilizando seis escalones, desde la menor hasta la mayor necesidad de medicamentos, y el algoritmo de tratamiento basado en fenotipos para la indicación de biológicos en pacientes con asma grave no controlada. A esto se suma ahora una novedad para su fácil uso y seguimiento a través de una aplicación informática basada en la inteligencia artificial conversacional de tipo chatbot (ia-GEMA).
OBJECTIVE: To evaluate the short term effect of air pollution on cardiovascular admissions in 14 Spanish cities METHODS: The period under study was from 1995 to 1999. Daily emergency admissions for all cardiovascular diseases (CVD) and heart diseases (HD) were obtained from hospital records, and the corresponding daily levels of particulates, SO2, NO2, CO, and ozone were recorded. The magnitude of association was estimated using Poisson generalised additive models controlling for confounding and overdispersion. For each cause, lagged effects, up to three days, of each pollutant were examined and combined estimates were obtained. For ozone the analyses were restricted to the warm period. One and two pollutant models were performed. RESULTS: Associations were more consistent in lag 0 (concurrent day) and 1 (lag 0-1), except in the case of ozone where there was a more delayed relation (lag 2-3). For combined estimates an increase of 10 microg/m3 in the PM10 levels in lag 0-1 was associated with an increase of 0.9% (95% CI: 0.4 to 1.5%) in the number of hospital admissions for CVD, and 1.6% (0.8 to 2.3%) for HD. For ozone the corresponding estimates for lag 2-3 were 0.7% (0.3 to 1.0) for CVD, and 0.7% (0.1 to 1.2) for HD. An increase of 1 mg/m3 in CO levels was associated with an increase of 2.1% (0.7 to 3.5%) in CVD admissions, and 4.2% (1.3 to 7.1%) in HD admissions. SO2 and NO2 estimates were more sensitive in two pollutant models CONCLUSIONS: A short term association between increases in daily levels of air pollutants and the number of daily admissions for cardiovascular diseases, with specificity for heart diseases, has been described in Spanish cities.
BACKGROUND: The use of mobile phone apps for improving lifestyles has become generalized in the population, although little is still known about their effectiveness in improving health. OBJECTIVE: We evaluate the effect of adding an app to standard counseling on increased physical activity (PA) and adherence to the Mediterranean diet, 3 months after implementation. METHODS: A randomized, multicenter clinical trial was carried out. A total of 833 participants were recruited in six primary care centers in Spain through random sampling: 415 in the app+counseling group and 418 in the counseling only group. Counseling on PA and the Mediterranean diet was given to both groups. The app+counseling participants additionally received training in the use of an app designed to promote PA and the Mediterranean diet over a 3-month period. PA was measured with the 7-day Physical Activity Recall (PAR) questionnaire and an accelerometer; adherence to the Mediterranean diet was assessed using the Mediterranean Diet Adherence Screener questionnaire. RESULTS: Participants were predominantly female in both the app+counseling (249/415, 60.0%) and counseling only (268/418, 64.1%) groups, with a mean age of 51.4 (SD 12.1) and 52.3 (SD 12.0) years, respectively. Leisure-time moderate-to-vigorous physical activity (MVPA) by 7-day PAR increased in the app+counseling (mean 29, 95% CI 5-53 min/week; P=.02) but not in the counseling only group (mean 17.4, 95% CI -18 to 53 min/week; P=.38). No differences in increase of activity were found between the two groups. The accelerometer recorded a decrease in PA after 3 months in both groups: MVPA mean -55.3 (95% CI -75.8 to -34.9) min/week in app+counseling group and mean -30.1 (95% CI -51.8 to -8.4) min/week in counseling only group. Adherence to the Mediterranean diet increased in both groups (8.4% in app+counseling and 10.4% in counseling only group), with an increase in score of 0.42 and 0.53 points, respectively (P<.001), but no difference between groups (P=.86). CONCLUSIONS: Leisure-time MVPA increased more in the app+counseling than counseling only group, although no difference was found when comparing the increase between the two groups. Counseling accompanied by printed materials appears to be effective in improving adherence to the Mediterranean diet, although the app does not increase adherence. CLINICALTRIAL: Clinicaltrials.gov NCT02016014; https://clinicaltrials.gov/ct2/show/NCT02016014 (Archived by WebCite at http://www.webcitation.org/6mnopADbf).
BACKGROUND: The aging process of the face comprises all layers: skin, subcutaneous fat, muscles, and skeleton, and the signs of aging depend mainly on which layer is mostly affected. OBJECTIVE: To evaluate the aging facial skeleton, as well as establish the sexual differences, areas with a strong predisposition to resorption, and aesthetic repercussion for better treatment approach. METHODS: Skulls from the Forensic Anthropology Department of the Institute of Forensic Medicine of Belo Horizonte, Brazil, were classified according to gender and age group (i.e., <20 years, 20-50 years, >50 years). Structural changes were classified according to gender and age group. RESULTS: Of the 241 skulls included, 192 were male skulls and 49 female. Sexual dimorphism and age-related peculiarities are described herein. CONCLUSIONS: The knowledge of the anatomy of the aging face, taking into consideration all the layers (skin, fat pads, muscles, and bones), as a whole, for the treatment of folds and shadows is vital for a better and more natural final aesthetic outcome.
Long-COVID is a new emerging syndrome worldwide that is characterized by the persistence of unresolved signs and symptoms of COVID-19 more than 4 weeks after the infection and even after more than 12 weeks. The underlying mechanisms for Long-COVID are still undefined, but a sustained inflammatory response caused by the persistence of SARS-CoV-2 in organ and tissue sanctuaries or resemblance with an autoimmune disease are within the most considered hypotheses. In this study, we analyzed the usefulness of several demographic, clinical, and immunological parameters as diagnostic biomarkers of Long-COVID in one cohort of Spanish individuals who presented signs and symptoms of this syndrome after 49 weeks post-infection, in comparison with individuals who recovered completely in the first 12 weeks after the infection. We determined that individuals with Long-COVID showed significantly increased levels of functional memory cells with high antiviral cytotoxic activity such as CD8 + TEMRA cells, CD8 ± TCRγδ + cells, and NK cells with CD56 + CD57 + NKG2C + phenotype. The persistence of these long-lasting cytotoxic populations was supported by enhanced levels of CD4 + Tregs and the expression of the exhaustion marker PD-1 on the surface of CD3 + T lymphocytes. With the use of these immune parameters and significant clinical features such as lethargy, pleuritic chest pain, and dermatological injuries, as well as demographic factors such as female gender and O + blood type, a Random Forest algorithm predicted the assignment of the participants in the Long-COVID group with 100% accuracy. The definition of the most accurate diagnostic biomarkers could be helpful to detect the development of Long-COVID and to improve the clinical management of these patients.
INTRODUCTION: Hepatocellular carcinoma (HCC) remains a frequently diagnosed malignancy worldwide, still representing an important cause of cancer-related death. Recent years have seen the emergence of novel systemic treatments for HCC patients, including immune checkpoint inhibitors (ICIs). Nonetheless, several questions regarding HCC immunotherapy remain unanswered, especially in terms of biochemical predictors of response. AREAS COVERED: In the current paper, we will discuss available evidence regarding predictive biomarkers of response to HCC immunotherapy. A literature search was conducted in January 2022 of Pubmed/Medline, Cochrane library, and Scopus databases. EXPERT OPINION: The identification of predictive biomarkers represents an unmet need in HCC patients receiving ICIs. The HCC medical community is called to further efforts aimed to elucidate the effective role of PD-L1 expression, TMB, MSI, gut microbiota, and other emerging biomarkers.
OBJECTIVE: To study the efficacy of telephone and mail intervention in therapeutic compliance among patients with mild to moderate hypertension. DESIGN: A prospective controlled multicenter clinical trial. SETTING: Eighty-five primary care centers in Spain, with a duration of 6 months. PATIENTS: A total of 636 patients with newly diagnosed or uncontrolled hypertension were included. Interventions. The patients were randomized and distributed between the following groups: (i) control (CG) - under routine clinical management; (ii) mail intervention (MIG) - received a mailed message reinforcing compliance and reminding of the visits (15 days, 2 and 4 months); (iii) telephone intervention (TIG) - received a telephone call at 15 days, then at 7 and 15 weeks. MAIN OUTCOME MEASURE: Five visits were scheduled, with the measurement of blood pressure and counting of tablets. Compliers were defined as subjects showing 80-110% drug consumption. Calculations were made of mean percentage compliance (MPC) and compliers, mean blood pressure and percentage controlled subjects. RESULTS: Five hundred and thirty-eight patients completed the study (261 males); 85.5% were compliers (CI = 82.5-88.5; n = 460). The MPC was 95.1+/-19.6% (CI = 93.28-96.92). The CG consisted of 182 individuals, MIG = 172 and TIG = 184. Compliers represented 69.2% of the CG (CI 62.5-75.9%), 91.3% (CI = 87.1-95.5) of the MIG (p = 0.0001) and 96.2% of the TIG (CI 93.5-98.9%); the final MPC was 89.6%+/-15 in CG, 96.6%+/-12 in MIG and 99.1+/-26.8 in TIG (p = 0.0001). The percentage of controlled subjects was 47.2% in CG (CI = 40-54.4), 61.3% in MIG (CI = 54.1-68.5%) and 63.3% in TIG (CI = 56.4-70.2%) (p<0.05). CONCLUSIONS: TIG and MIG are effective measures for improving patient compliance in hypertension.
BACKGROUND: Acquired perforating dermatosis (APD) is a rare group of skin disorders of unknown aetiology and pathogenesis and is associated with several systemic diseases. OBJECTIVE: We review the clinicopathological features, associated systemic diseases and treatment response in a series of APD patients. METHODS: We conducted a retrospective observational study of all patients histologically diagnosed with APD in Hospital San Jorge (Huesca, Spain) between 2002 and 2014. Demographic and clinical features were collected from medical records. Statistical analyses were carried out using SPSS software (version 20.0; IBM Corp, Armonk, NY, USA). RESULTS: The study population consisted of 31 patients (19 women and 12 men), with a mean age of 54 years. Reactive perforating collagenosis (n = 15, 45%) was the most common histopathologic type. The most frequently affected area was the lower limbs (66.6%, n = 22), and pruritus was present in 19 patients (61.3%, P = 0.005). Arterial hypertension (30.3%) was the most common associated condition. Five patients were receiving treatment with infliximab when diagnosed with APD. Most patients responded to topical steroids and oral antihistamines (n = 15). LIMITATIONS: This study is retrospective, and the sample size is limited. CONCLUSION: Acquired perforating dermatosis is an underdiagnosed dermatosis frequently associated with systemic disorders. Its pathogenesis may involve vascular damage, not only in patients with diabetes, but also in those with arterial hypertension and chronic venous insufficiency. Control of pruritus and underlying extracutaneous disorders, as well as discontinuation of the treatment with biologics, are important aspects of the management of this dermatosis.
BACKGROUND: Although gay, bisexual, and other cisgender men who have sex with men (MSM) and transgender women have the highest HIV burden in Latin America, pre-exposure prophylaxis (PrEP) implementation is poor. We aimed to assess the feasibility of same-day oral PrEP delivery in Brazil, Mexico, and Peru. METHODS: Implementation PrEP (ImPrEP) was a prospective, single-arm, open-label, multicentre PrEP implementation study conducted in Brazil (14 sites), Mexico (four sites), and Peru (ten sites). MSM and transgender women were eligible to participate if they were aged 18 years or older, HIV-negative, and reported one or more prespecified criteria. Enrolled participants received same-day initiation of daily oral PrEP (tenofovir disoproxil fumarate [300 mg] coformulated with emtricitabine [200 mg]). Follow-up visits were scheduled at week 4 and quarterly thereafter. We used logistic regression models to identify factors associated with early loss to follow-up (not returning after enrolment), PrEP adherence (medication possession ratio ≥0·6), and long-term PrEP engagement (attending three or more visits within 52 weeks). This study is registered at the Brazilian Registry of Clinical Trials, U1111-1217-6021. FINDINGS: From Feb 6, 2018, to June 30, 2021, 9979 participants were screened and 9509 were enrolled (Brazil n=3928, Mexico n=3288, and Peru n=2293). 543 (5·7%) participants were transgender women, 8966 (94·3%) were cisgender men, and 2481 (26·1%) were aged 18-24 years. There were 12 185·25 person-years of follow-up. 795 (8·4%) of 9509 participants had early loss to follow-up, 6477 (68·1%) of 9509 were adherent to PrEP, and 5783 (70·3%) of 8225 had long-term PrEP engagement. Transgender women (adjusted odds ratio 1·60, 95% CI 1·20-2·14), participants aged 18-24 years (1·80, 1·49-2·18), and participants with primary education (2·18, 1·29-3·68) had increased odds of early loss to follow-up. Transgender women (0·56, 0·46-0·70), participants aged 18-24 years (0·52, 0·46-0·58), and those with primary education (0·60, 0·40-0·91) had lower odds of PrEP adherence. Transgender women (0·56, 0·45-0·71), participants aged 18-24 years (0·56, 0·49-0·64), and those with secondary education (0·74, 0·68-0·86) had lower odds of long-term PrEP engagement. HIV incidence was 0·85 per 100 person-years (95% CI 0·70-1·03) and was higher for transgender women, participants from Peru, those aged 18-24 years, Black and mixed-race participants, and participants who were non-adherent to PrEP. INTERPRETATION: Same-day oral PrEP is feasible for MSM and transgender women in Latin America. Social and structural determinants of HIV vulnerability need to be addressed to fully achieve the benefits of PrEP. FUNDING: Unitaid, WHO, and Ministries of Health in Brazil, Mexico, and Peru. TRANSLATIONS: For the Portuguese and Spanish translations of the abstract see Supplementary Materials section.
BACKGROUND: New technologies could facilitate changes in lifestyle and improve public health. However, no large randomized, controlled studies providing scientific evidence of the benefits of their use have been made. The aims of this study are to develop and validate a smartphone application, and to evaluate the effect of adding this tool to a standardized intervention designed to improve adherence to the Mediterranean diet and to physical activity. An evaluation is also made of the effect of modifying habits upon vascular structure and function, and therefore on arterial aging. METHODS/DESIGN: A randomized, double-blind, multicenter, parallel group clinical trial will be carried out. A total of 1215 subjects under 70 years of age from the EVIDENT trial will be included. Counseling common to both groups (control and intervention) will be provided on adaptation to the Mediterranean diet and on physical activity. The intervention group moreover will receive training on the use of a smartphone application designed to promote a healthy diet and increased physical activity, and will use the application for three months. The main study endpoints will be the changes in physical activity, assessed by accelerometer and the 7-day Physical Activity Recall (PAR) interview, and adaptation to the Mediterranean diet, as evaluated by an adherence questionnaire and a food frequency questionnaire (FFQ). Evaluation also will be made of vascular structure and function based on central arterial pressure, the radial augmentation index, pulse velocity, the cardio-ankle vascular index, and carotid intima-media thickness. DISCUSSION: Confirmation that the new technologies are useful for promoting healthier lifestyles and that their effects are beneficial in terms of arterial aging will have important clinical implications, and may contribute to generalize their application in favor of improved population health. TRIAL REGISTRATION: Clinical Trials.gov Identifier: NCT02016014.
Background and Purpose: Stroke is reported as a consequence of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection in several reports. However, data are sparse regarding the details of these patients in a multinational and large scale. Methods: We conducted a multinational observational study on features of consecutive acute ischemic stroke, intracranial hemorrhage, and cerebral venous or sinus thrombosis among SARS-CoV-2–infected patients. We further investigated the risk of large vessel occlusion, stroke severity as measured by the National Institutes of Health Stroke Scale, and stroke subtype as measured by the TOAST (Trial of ORG 10172 in Acute Stroke Treatment) criteria among patients with acute ischemic stroke. In addition, we explored the neuroimaging findings, features of patients who were asymptomatic for SARS-CoV-2 infection at stroke onset, and the impact of geographic regions and countries’ health expenditure on outcomes. Results: Among the 136 tertiary centers of 32 countries who participated in this study, 71 centers from 17 countries had at least 1 eligible stroke patient. Of 432 patients included, 323 (74.8%) had acute ischemic stroke, 91 (21.1%) intracranial hemorrhage, and 18 (4.2%) cerebral venous or sinus thrombosis. A total of 183 (42.4%) patients were women, 104 (24.1%) patients were <55 years of age, and 105 (24.4%) patients had no identifiable vascular risk factors. Among acute ischemic stroke patients, 44.5% (126 of 283 patients) had large vessel occlusion; 10% had small artery occlusion according to the TOAST criteria. We observed a lower median National Institutes of Health Stroke Scale (8 [3–17] versus 11 [5–17]; P =0.02) and higher rate of mechanical thrombectomy (12.4% versus 2%; P <0.001) in countries with middle-to-high health expenditure when compared with countries with lower health expenditure. Among 380 patients who had known interval onset of the SARS-CoV-2 and stroke, 144 (37.8%) were asymptomatic at the time of admission for SARS-CoV-2 infection. Conclusions: We observed a considerably higher rate of large vessel occlusions, a much lower rate of small vessel occlusion and lacunar infarction, and a considerable number of young stroke when compared with the population studies before the pandemic. The rate of mechanical thrombectomy was significantly lower in countries with lower health expenditures.
Purpose The purpose of this paper is to analyse the mediating effect of supply chain agility (SCA) in the relationship between absorptive capacity (AC) and firm performance. Design/methodology/approach The authors use data from 231 Spanish firms and test the hypothesis by structural equation modelling. Findings SCA mediates the relationship between AC and firm performance. Research limitations/implications The cross-sectional survey and the use of managerial perceptions may need to use longitudinal and real measures in future studies to validate causal relationships. Practical implications SCA may contribute to explain why AC improves firm performance. Firms with more agile supply chains may benefit more from their efforts in AC to improve firm performance. Originality/value A conceptual framework has been developed to explain the relationships of the main constructs of the study (AC and SCA) with firm performance and whether SCA mediates the relationship between AC and firm performance.