61,061 results match your criteria: "Colombia; and Royal Victoria Hospital and McGill University (Dr Brophy)[Affiliation]"

The incidence of cesarean section is dramatically increasing worldwide, whereas the training opportunities for obstetrician/gynecologists to manage complex cesarean section appear to be decreasing. This may be attributed to changing working hours directives and the increasing use of laparoscopy for gynecological surgical procedures, including in gynecological oncology. Various situations can create surgical difficulties during a cesarean section; however, two of the most frequent are complications from previous cesarean (myometrial defects, with or without placental intrusion and peritoneal adhesions) and the high risk of postpartum hemorrhage (uterine overdistension, abnormal placentation, uterine fibroids).

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Land use change threatens global biodiversity and compromises ecosystem functions, including pollination and food production. Reduced taxonomic α-diversity is often reported under land use change, yet the impacts could be different at larger spatial scales (i.e.

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Intradermal Incobotulinum Toxin A for Postbreast Cancer Treatment Asymmetry: A Literature Review and Case Report.

J Cosmet Dermatol

January 2025

Ophthalmologist - Oculoplastic Surgery, Sociedad Internacional de Rejuvenecimiento Facial no Quirurgico (SIRF), Barranquilla, Colombia.

Background: Botulinum toxin (BTX) is globally the most common aesthetic procedure. Its usage has expanded beyond facial treatments to therapeutic areas, including managing scars and postsurgical deformities. Breast cancer survivors often face significant deformities and asymmetry during recovery.

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BACKGROUND Terminal ileum (TI) anastomoses present challenges due to anatomical features and pressure from the ileocecal valve (ICV). The use of negative-pressure wound therapy (NPWT) is commonly used to treat chronic skin ulcers. Its use for temporary abdominal closure following anastomosis is controversial but has shown promise in patients with inflammatory or vascular disease.

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Background: Adenoid cystic carcinoma of the breast is a rare subtype, constituting less than 3.5% of primary breast carcinomas. Despite being categorized as a type of triple-negative breast cancer, it generally has a favorable prognosis.

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Background: Prenatally transmitted viruses can cause severe damage to the developing brain. There is unexplained variability in prenatal brain injury and postnatal neurodevelopmental outcomes, suggesting disease modifiers. Of note, prenatal Zika infection can cause a spectrum of neurodevelopmental disorders, including congenital Zika syndrome.

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Endophytes from medicinal plants are potential biocontrol agents against Fusarium oxysporum f. sp. cubense (Foc), which is the causative fungus of banana wilt disease.

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Background: Optimised use of kidney function information might improve cardiac risk prediction in noncardiac surgery.

Methods: In 35,815 patients from the VISION cohort study and 9219 patients from the POISE-2 trial who were ≥45 yr old and underwent nonurgent inpatient noncardiac surgery, we examined (by age and sex) the association between continuous nonlinear preoperative estimated glomerular filtration rate (eGFR) and the composite of myocardial injury after noncardiac surgery, nonfatal cardiac arrest, or death owing to a cardiac cause within 30 days after surgery. We estimated contributions of predictive information, C-statistic, and net benefit from eGFR and other common patient and surgical characteristics to large multivariable models.

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Microplastic pollution has become a global environmental issue, severely impacting marine ecosystems. In Colombia, understanding of marine microplastic pollution remains limited, necessitating targeted efforts for prevention and conservation. This study presents the first assessment of microplastics along 125 km of the Caribbean coast of La Guajira region in Colombia.

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High-energy nuclear collisions create a quark-gluon plasma, whose initial condition and subsequent expansion vary from event to event, impacting the distribution of the eventwise average transverse momentum [P([p_{T}])]. Disentangling the contributions from fluctuations in the nuclear overlap size (geometrical component) and other sources at a fixed size (intrinsic component) remains a challenge. This problem is addressed by measuring the mean, variance, and skewness of P([p_{T}]) in ^{208}Pb+^{208}Pb and ^{129}Xe+^{129}Xe collisions at sqrt[s_{NN}]=5.

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Measurement of CP Violation Observables in D^{+}→K^{-}K^{+}π^{+} Decays.

Phys Rev Lett

December 2024

Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.

A search for violation of the charge-parity (CP) symmetry in the D^{+}→K^{-}K^{+}π^{+} decay is presented, with proton-proton collision data corresponding to an integrated luminosity of 5.4  fb^{-1}, collected at a center-of-mass energy of 13 TeV with the LHCb detector. A novel model-independent technique is used to compare the D^{+} and D^{-} phase-space distributions, with instrumental asymmetries subtracted using the D_{s}^{+}→K^{-}K^{+}π^{+} decay as a control channel.

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Noether and partial Noether approach for the nonlinear (3+1)-dimensional elastic wave equations.

PLoS One

January 2025

Facultad de Ciencias Naturales e Ingenieria, Universidad de Bogota Jorge Tadeo Lozano, Bogota, Colombia.

The Lie group method is a powerful technique for obtaining analytical solutions for various nonlinear differential equations. This study aimed to explore the behavior of nonlinear elastic wave equations and their underlying physical properties using Lie group invariants. We derived eight-dimensional symmetry algebra for the (3+1)-dimensional nonlinear elastic wave equation, which was used to obtain the optimal system.

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An Automated Workflow to Discover the Structure-Stability Relations for Radiation Hard Molecular Semiconductors.

J Am Chem Soc

January 2025

Institute of Materials for Electronics and Energy Technology (i-MEET), Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Martensstraße 7, 91058 Erlangen, Germany.

Emerging photovoltaics for outer space applications are one of the many examples where radiation hard molecular semiconductors are essential. However, due to a lack of general design principles, their resilience against extra-terrestrial high-energy radiation can currently not be predicted. In this work, the discovery of radiation hard materials is accelerated by combining the strengths of high-throughput, lab automation and machine learning.

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Background: Hereditary Angioedema is an autosomal dominant disorder caused by a lack or decrease in the function of the C1 inhibitor. It is a rare disease with low prevalence. Treatment focuses on symptom relief and short- and long-term prevention of acute attacks.

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Atopic dermatitis (AD) is a disease that significantly impacts the quality of life of patients. Although there are multiple evidence-based guidelines, they are usually aimed at providing recommendations to AD specialists rather than primary care physicians (PCPs). The aim of this study was to construct a consensus document for PCPs, with the aim of presenting evidence-based recommendations that allow general practitioners, family physicians, pediatricians, internists and emergency physicians to provide appropriate care to AD patients, facilitating their diagnosis, management, and avoiding delays that can deteriorate patients' f quality of life.

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Basic Science and Pathogenesis.

Alzheimers Dement

December 2024

Faculdade de Medicina de Ciências Médicas de Minas Gerais, Belo Horizonte, Brazil.

Background: Most research initiatives have emerged from high-income countries (HIC), leaving a gap in understanding the disease's genetic basis in diverse populations like those in Latin American countries (LAC). ReDLat tackles this gap, focusing on LAC's unique genetics and socioeconomic factors to identify specific Alzheimer's Disease (AD) and Frontotemporal Dementia (FTD) risk factors in Mexico, Colombia, Peru, Chile, Argentina, and Brazil.

Method: We employed a comprehensive genetic analysis approach, integrating Whole Genome Sequencing (WGS), Exome Sequencing, and SNP arrays to understand the cohort's unique genetic architecture.

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Clinical Manifestations.

Alzheimers Dement

December 2024

Universidad Simón Bolívar, Barranquilla, Colombia.

Background: Quantitative Electroencephalography (qEEG) plays a pivotal role in the assessment and categorization of cognitive impairment (CI). The integration of qEEG markers with neuropsychological test scores can predict rapid cognitive decline in neurodegenerative diseases. The aim of this study was to correlate qEEG findings with the neuropsychological profile in patients with CI from the Colombian Caribbean.

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Clinical Manifestations.

Alzheimers Dement

December 2024

Universidad Simón Bolívar, Barranquilla, Colombia.

Background: The neuropsychological profile within indigenous communities is a complex interplay of cultural, social, and environmental factors that significantly influence cognitive functioning and distinct neuropsychological patterns. The aim of this study was to assess the neuropsychological profile in the Wayuu indigenous population.

Methods: A cross-sectional study.

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Clinical Manifestations.

Alzheimers Dement

December 2024

Universidad Autónoma de Caribe, Barranquilla, Colombia.

Background: Assessments for early-stage Alzheimer's disease (AD) aim to identify neuropsychological and functional impairments, which rarely correlate with early disease stages. We need to enhance our understanding of the cognitive aspects contributing to functional decline to improve sensitivity in functional assessment. The ability to bind information in memory declines in preclinical AD stages.

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Clinical Manifestations.

Alzheimers Dement

December 2024

Grupo de Neurociencias de Antioquia, Universidad de Antioquia, Medellín, Colombia.

Background: Neuropsychiatric symptoms (NPS) are common in early stages of Alzheimer's disease (AD) and may be early markers of cognitive decline and dementia in older individuals. The Mild Behavioral Impairment Checklist (MBI-C) was developed to capture new-onset transdiagnostic NPS in individuals at risk of dementia. We sought to determine whether mild behavioral impairment symptoms are elevated in non-demented Presenilin-1 (PSEN1) E280A carriers, who are genetically determined to develop dementia by their 50s.

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Background: ApoE has been linked to individual differences in risk and resilience to neurodegeneration in normal aging. The ApoE4 genotype has been associated with an increased risk of developing late-onset Alzheimer's disease (age 65 and older). Within the cognitively healthy population, important differences have been reported in the distribution of ApoE4 alleles and their association with cognitive performance, especially in underrepresented groups.

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Background: Recent studies suggest that among cognitively unimpaired older adults, there are individuals who might present with subtle cognitive impairments suggesting the risk of Alzheimer's disease (AD; Bos et al., 2018). The Visual Short-Term Memory Binding Test (VSTMBT) identifies older adults who are accumulating AD pathology even though they are otherwise cognitively unimpaired (Parra et al.

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Clinical Manifestations.

Alzheimers Dement

December 2024

Escuela Profesional de Medicina Humana, Universidad Privada San Juan Bautista, Lima, LIMA, Peru.

Background: The increasing prevalence of dementia, particularly in low-income regions, necessitates the development of effective cognitive screening methods. However, the suitability of many existing tools for illiterate and low-educated populations is limited, resulting in significant diagnostic disparities. This review aims to evaluate global cognitive assessment instruments for the identification of Mild Cognitive Impairment (MCI) and dementia in older adults with limited education.

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Background: Traditional neuropsychological assessments have proved insensitive to identify the preclinical stages of Alzheimer's disease (AD). Such a barrier has proved more challenging when assessing individuals from underrepresented populations (Parra et al., 2018; 2020; 2022).

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