Publications by authors named "ALVARADO L"

Background: Venous Thromboembolic events (VTE) after Metabolic and Bariatric Surgery (MBS) result in significant morbidity and are the leading cause of mortality.

Objective: The objective of this study was to identify patients who are at a high risk for developing VTE and who may benefit from extended chemoprophylaxis following MBS.

Setting: Multi-institutional study.

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This study presents what we believe is the first extensive assessment of the water reflectance products from the German hyperspectral Environmental Mapping and Analysis Program (EnMAP). We evaluate EnMAP's standard normalized water leaving reflectance [ρ] over 17 water sites in the first two years of the mission. The EnMAP [ρ] standard product is generated by a dedicated water atmospheric correction (AC) called the Modular Inversion Program (MIP).

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Unlabelled: Clinical guidelines do not clearly define hospitalization time after primary angioplasty in ST-segment elevation myocardial infarction (STEMI). The hospitalization time should be tailored according to risk stratification.

Aim: Evaluation of a local early discharge protocol to identify low-risk patients after primary angioplasty.

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The United States Pharmacopeial Convention (USP) is a nonprofit, scientific, standard-setting organization, and world leader in establishing quality, purity, and testing standards for medicines, foods, and dietary supplements. USP quality standards are used in more than 140 countries and are legally recognized by more than 40 countries. Currently, there is renewed interest in herbal medicines globally, and health policies are being implemented worldwide for the use of complementary and traditional medicine.

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Background: Breast cancer (BC) affects racial and ethnic groups differently, leading to disparities in clinical presentation and outcomes. It is unclear how Hispanic ethnicity affects BC outcomes based on geographic location and proximity to the United States (U.S.

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Background And Purpose: Preoperative partial breast irradiation (PBI) is a novel technique that can be used in patients with early-stage breast cancer with the goal of limiting the irradiated breast volume, toxicity and number of fractions. The aim of this trial is to assess the toxicity, surgical, oncologic and cosmetic outcomes of preoperative PBI.

Materials And Methods: In this single-arm phase II trial, we enrolled women ≥ 60 years, with unifocal low-risk breast invasive ductal carcinoma (cT1N0, grade 1-2, ER+, Her2-).

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Article Synopsis
  • The recently licensed chikungunya vaccine, IXCHIQ, shows strong cross-neutralizing antibody responses against chikungunya virus and several related alphaviruses.
  • The study measured antibody responses at one month, six months, and one year post-vaccination, revealing 100% seroconversion to most viruses tested, except for Ross River virus at 83.3%.
  • IXCHIQ appears to provide antibody responses similar to natural chikungunya infections, suggesting it may offer protection to populations at risk from multiple alphavirus infections in areas where the vaccine is deployed.
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Objective: Neuropsychiatric symptoms (NPSs) have been linked to cognitive decline. This study explored ethnic differences and the effects of baseline NPSs on incident mild cognitive impairment (MCI) among 386 Hispanic and non-Hispanic participants from the Texas Harris Alzheimer's Research Study.

Methods: Data on NPSs from the Neuropsychiatric Inventory Questionnaire were available for all participants.

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Article Synopsis
  • SARS-CoV-2 is the virus responsible for COVID-19, and accurate diagnostic testing is crucial to manage its spread and treatment effectively.
  • A study was conducted on 30 households to analyze the progression of viral markers (RNA and antigen) soon after infection, noting that viral RNA was found in saliva earlier than in nasal swabs for some individuals.
  • Results showed RNA detection was more sensitive, while antigen detection correlated better with contagiousness, helping to refine the interpretation of SARS-CoV-2 test results for better patient care.
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Deciding whether to explore unknown opportunities or exploit well-known options is a ubiquitous part of our everyday lives. Extensive work in college students suggests that young people make explore-exploit decisions using a mixture of information seeking and random behavioral variability. Whether, and to what extent, older adults use the same strategies is unknown.

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Background: In those patients who do not have timely access to primary angioplasty, the pharmaco-invasive approach, that is, the use of thrombolysis as a bridging measure prior to the coronary angiography, is a safe alternative.

Aim: To describe the features of patients with an acute ST-elevation myocardial infarction (STEMI) treated with a pharmaco-invasive strategy.

Material And Methods: Descriptive observational study of 144 patients with mean age of 46 years with STEMI who received a dose of thrombolytic prior to their referral for primary angioplasty at a public hospital between 2018 and 2021.

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Introduction: The use of robotic-assisted (RA) surgery in the field of metabolic and bariatric surgery (MBS) is controversial because of cost concerns and issues related to efficiency. The objective of this study is to evaluate the operating room efficiency in performing RA-MBS prior and after the implementation of a standardized surgical approach.

Materials And Methods: All MBS cases entered into our database between October 2017 and October 2022 were collected and analyzed before and after the introduction of the standardized approach (SA).

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As the deadliest form of skin cancer, advanced-stage melanoma is a devastating disease. Encouragingly, with the introduction of immunotherapy, the overall survival of metastatic melanoma has improved drastically. However, access to novel immunotherapeutic drugs is not universal for all patients.

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Article Synopsis
  • - This study aimed to assess the effects of Staple Line Reinforcement (SLR) on patients who underwent Robotic-Assisted Sleeve Gastrectomy (RA-SG) using data from the MBSAQIP database in 2019.
  • - Researchers analyzed 16,494 RA-SG patients categorized by their SLR methods, looking at outcomes like bleeding, infection, and operation duration.
  • - Findings revealed no significant reduction in bleeding or complications related to SLR types, but patients receiving oversewing experienced longer operation times compared to those using buttressing alone.
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Purpose: The primary objective of this study is to evaluate the outcomes of robotic-assisted (RA-) approach compared to the standard laparoscopic (L-) approach using the 2020 Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) registry Public Use File (PUF). Our secondary objective is to establish standards for the reporting of outcomes using PUF.

Materials And Methods: Using the PUF database (n = 168,568), patients were divided into sleeve gastrectomy (SG), Roux-en-Y gastric bypass (RYGB), revisions, and conversions and then analyzed separately.

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Background: Recent legislative decisions in the United States have encouraged discussion about national parental leave programs. Currently, over 47% of the United States workforce is female. However, the United States is the only nation of the 37 member countries in the Organization for Economic Co-Operation and Development (OECD) to have no national requirement for maternity leave.

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  • - The study analyzed five carbapenemase-producing isolates from Lima, Peru, identifying them as Klebsiella pneumoniae, Citrobacter portucalensis, and Escherichia coli, all carrying resistance genes and confirmed through PCR testing.
  • - Whole-genome sequencing revealed the presence of the OXA-181 gene in all isolates, which is linked to increased resistance to several antibiotics and is associated with significant public health concerns globally.
  • - The findings highlight the identification of the IncX3 plasmid, known for facilitating the spread of antibiotic resistance, suggesting that similar CPE isolates are becoming more common in healthcare settings in Peru.
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Infections with Chikungunya virus, a mosquito-borne alphavirus, cause an acute febrile syndrome often followed by chronic arthritis that persists for months to years post-infection. Neutralizing antibodies are the primary immune correlate of protection elicited by infection, and the major goal of vaccinations in development. Using convalescent blood samples collected from both endemic and non-endemic human subjects at multiple timepoints following suspected or confirmed chikungunya infection, we identified antibodies with broad neutralizing properties against other alphaviruses within the Semliki Forest complex.

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Nowadays, there is a broad range of methods for detecting and evaluating executive dysfunction ranging from clinical interview to neuropsychological evaluation. Nevertheless, a critical issue of these assessments is the lack of correspondence of the neuropsychological test's results with real-world functioning. This paper proposes serious games as a new framework to improve the neuropsychological assessment of real-world functioning.

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Substantial increases in the conjugation of the main human SUMO paralogs, SUMO1, SUMO2, and SUMO3, are observed upon exposure to different cellular stressors, and such increases are considered important to facilitate cell survival to stress. Despite their critical cellular role, little is known about how the levels of the SUMO modifiers are regulated in the cell, particularly as it relates to the changes observed upon stress. Here we characterize the contribution of alternative splicing towards regulating the expression of the main human SUMO paralogs under normalcy and three different stress conditions, heat-shock, cold-shock, and Influenza A Virus infection.

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Giant cell arteritis (GCA) is a large vessel vasculitis whereby up to half of all patients show ocular involvement, highlighting the importance of treating GCA before it leads to irreversible blindness. Most of the research published for GCA and associated adverse ocular events are based on majority Caucasian populations establishing the current belief that Hispanics have a much lower incident of GCA. We sought to investigate the incidence of GCA in Hispanics and characterize associated ocular events, stroke rates, and comorbid diseases.

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Background: Rheumatoid arthritis (RA) is a chronic, systemic autoimmune disease that is associated with functional disability and reduced quality of life. The central pathology of RA is the inflammation of diarthrodial joints, but approximately 40% of patients experience extra-articular manifestations of RA. Extra-articular manifestations are complications of RA that constitute multisystem disorders, associated with genetic and environmental conditions, and increase mortality in RA patients.

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Objective.: To determine the diagnostic performance of blood culture positivity times for distinguishing true bacteremia from contaminants in the automated "BACT/ALERT®" system.

Materials And Methods.

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