Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 63
Filtrar
Más filtros

Tipo del documento
Intervalo de año de publicación
1.
Am J Hum Genet ; 108(7): 1231-1238, 2021 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-34089648

RESUMEN

Genetic disorders are a leading contributor to mortality in neonatal and pediatric intensive care units (ICUs). Rapid whole-genome sequencing (rWGS)-based rapid precision medicine (RPM) is an intervention that has demonstrated improved clinical outcomes and reduced costs of care. However, the feasibility of broad clinical deployment has not been established. The objective of this study was to implement RPM based on rWGS and evaluate the clinical and economic impact of this implementation as a first line diagnostic test in the California Medicaid (Medi-Cal) program. Project Baby Bear was a payor funded, prospective, real-world quality improvement project in the regional ICUs of five tertiary care children's hospitals. Participation was limited to acutely ill Medi-Cal beneficiaries who were admitted November 2018 to May 2020, were <1 year old and within one week of hospitalization, or had just developed an abnormal response to therapy. The whole cohort received RPM. There were two prespecified primary outcomes-changes in medical care reported by physicians and changes in the cost of care. The majority of infants were from underserved populations. Of 184 infants enrolled, 74 (40%) received a diagnosis by rWGS that explained their admission in a median time of 3 days. In 58 (32%) affected individuals, rWGS led to changes in medical care. Testing and precision medicine cost $1.7 million and led to $2.2-2.9 million cost savings. rWGS-based RPM had clinical utility and reduced net health care expenditures for infants in regional ICUs. rWGS should be considered early in ICU admission when the underlying etiology is unclear.


Asunto(s)
Enfermedad Crítica/terapia , Medicina de Precisión , Secuenciación Completa del Genoma , California , Estudios de Cohortes , Costo de Enfermedad , Cuidados Críticos , Femenino , Hospitales Pediátricos , Humanos , Lactante , Recién Nacido , Masculino , Medicaid , Estudios Prospectivos , Resultado del Tratamiento , Estados Unidos
2.
Sensors (Basel) ; 23(23)2023 Nov 30.
Artículo en Inglés | MEDLINE | ID: mdl-38067885

RESUMEN

Obstructive Sleep Apnea (OSA) is a respiratory disorder characterized by frequent breathing pauses during sleep. The apnea-hypopnea index is a measure used to assess the severity of sleep apnea and the hourly rate of respiratory events. Despite numerous commercial devices available for apnea diagnosis and early detection, accessibility remains challenging for the general population, leading to lengthy wait times in sleep clinics. Consequently, research on monitoring and predicting OSA has surged. This comprehensive paper reviews devices, emphasizing distinctions among representative apnea devices and technologies for home detection of OSA. The collected articles are analyzed to present a clear discussion. Each article is evaluated according to diagnostic elements, the implemented automation level, and the derived level of evidence and quality rating. The findings indicate that the critical variables for monitoring sleep behavior include oxygen saturation (oximetry), body position, respiratory effort, and respiratory flow. Also, the prevalent trend is the development of level IV devices, measuring one or two signals and supported by prediction software. Noteworthy methods showcasing optimal results involve neural networks, deep learning, and regression modeling, achieving an accuracy of approximately 99%.


Asunto(s)
Síndromes de la Apnea del Sueño , Apnea Obstructiva del Sueño , Humanos , Polisomnografía/métodos , Apnea Obstructiva del Sueño/diagnóstico , Sueño , Oximetría/métodos
3.
Emerg Infect Dis ; 28(2): 453-456, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-35076006

RESUMEN

Transplacental transmission of Zika virus has been reported during all trimesters of pregnancy and might lead to central nervous system anomalies, including microcephaly. We report 3 cases of perinatal Zika infection identified during the epidemic in Colombia and provide detailed descriptions of clinical features, diagnosis, and neurodevelopmental outcome at 18 months of age (corrected).


Asunto(s)
Microcefalia , Complicaciones Infecciosas del Embarazo , Infección por el Virus Zika , Virus Zika , Colombia/epidemiología , Femenino , Humanos , Lactante , Transmisión Vertical de Enfermedad Infecciosa , Microcefalia/epidemiología , Microcefalia/etiología , Embarazo , Infección por el Virus Zika/diagnóstico , Infección por el Virus Zika/epidemiología
4.
Acta Obstet Gynecol Scand ; 101(2): 221-231, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-34904224

RESUMEN

INTRODUCTION: In October 2015, an epidemic of Zika began in Colombia's geographic areas with a high population of mosquitoes of the genus Aedes. We aimed to describe the fetal brain ultrasound findings in pregnant women with active symptoms or a history of symptoms suggestive of Zika virus (ZIKV) infection. MATERIAL AND METHODS: Eligible pregnant women were tested with reverse transcriptase-polymerase chain reaction (RT-PCR) for ZIKV and followed prospectively using detailed anatomic ultrasound and transvaginal neurosonography to detect structural anomalies of the fetal central nervous system (CNS). RESULTS: A total of 115 symptomatic women with a positive ZIKV RT-PCR and 55 with a negative ZIKV RT-PCR were enrolled in the study; CNS compromise of the fetus occurred in 22% and 17%, respectively (p = 0.255). Callosal dysgenesis (14.5%) was the most frequent anomaly of the CNS, followed by microcephaly (13.6%) and neuronal migration disorders (8.3%). When symptomatic ZIKV RT-PCR-positive women were categorized by trimester of infection, CNS anomalies were present in 40% of first-trimester infections, compared with 21% and 7% in second- and third-trimester infections (p = 0.002). CNS anomalies were also more severe in first-trimester-infected fetuses than in second- and third-trimester-infected fetuses. The high prevalence of CNS anomalies in fetuses of symptomatic ZIKV RT-PCR negative women suggests a high rate of false-negative cases and an even higher prevalence of CNS anomalies than observed in this study. CONCLUSIONS: The prevalence of fetal CNS anomalies was higher than previously reported in the literature for both symptomatic RT-PCR-positive and -negative pregnant women. Corpus callosum anomalies, microcephaly, neuronal migration disorders, and brain parenchymal hyperechogenicities were the most frequent CNS anomalies detected. In addition, CNS anomalies were more frequent and severe in infected fetuses during the first trimester of pregnancy than during the second or third trimester.


Asunto(s)
Sistema Nervioso Central/anomalías , Microcefalia/epidemiología , Complicaciones Infecciosas del Embarazo , Ultrasonografía Prenatal , Infección por el Virus Zika , Virus Zika/aislamiento & purificación , Anomalías Múltiples/diagnóstico por imagen , Anomalías Múltiples/epidemiología , Anomalías Múltiples/etiología , Adolescente , Adulto , Sistema Nervioso Central/diagnóstico por imagen , Estudios de Cohortes , Colombia/epidemiología , Femenino , Edad Gestacional , Humanos , Microcefalia/diagnóstico por imagen , Microcefalia/etiología , Embarazo , Trimestres del Embarazo , Prevalencia , Estudios Prospectivos , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Adulto Joven , Virus Zika/genética
5.
Am J Perinatol ; 34(7): 676-683, 2017 06.
Artículo en Inglés | MEDLINE | ID: mdl-27936476

RESUMEN

Objective To evaluate the association between necrotizing enterocolitis (NEC), growth, and feeding. Methods This is a retrospective study of 551 infants (birth weight ≤ 1,500 g, ≤32 weeks' gestation). NEC, Bell's stage ≥ 2, was confirmed by independent review of sentinel radiographs. Feeding type was defined as ≥ 50% maternal milk (MM), pasteurized donor human milk (PDHM), or preterm formula (PF). Demographic and clinical characteristics including growth were compared between the three groups. Multivariable regression analysis was performed to control variables that differed in bivariate analysis. Results PDHM and PF mothers were more likely to be African-American, be enrolled in Medicaid, and have chorioamnionitis. PF mothers received antenatal steroids less frequently. NEC rates were different by feeding group (MM: 5.3%; PHDM: 4.3%; PF: 11.4%; p = 0.04). Adjusting for group differences, lower gestational age (adjusted odds ratio [aOR]: 0.85; 95% confidence interval [CI]: 0.74-0.97; p = 0.02], and PF (aOR: 2.53; 95% CI: 1.15-5.53; p = 0.02] were associated with NEC. There were no differences in other health outcomes or growth at hospital discharge. Conclusion MM and PDHM feedings, given until 34 weeks postmenstrual age, were associated with lower rates of NEC in very low birth weight infants without interfering with growth.


Asunto(s)
Enterocolitis Necrotizante/epidemiología , Fenómenos Fisiológicos Nutricionales del Lactante , Recien Nacido Prematuro/crecimiento & desarrollo , Recién Nacido de muy Bajo Peso/crecimiento & desarrollo , Nutrición Parenteral/métodos , Peso al Nacer , Femenino , Edad Gestacional , Humanos , Lactante , Fórmulas Infantiles , Recién Nacido , Modelos Logísticos , Masculino , Leche Humana , Análisis Multivariante , North Carolina/epidemiología , Nutrición Parenteral/estadística & datos numéricos , Estudios Retrospectivos
6.
J Anat ; 228(3): 355-65, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-26659272

RESUMEN

The analysis of shape is a key part of anatomical research and in the large majority of cases landmarks provide a standard starting point. However, while the technology of image capture has developed rapidly and in particular three-dimensional imaging is widely available, the definitions of anatomical landmarks remain rooted in their two-dimensional origins. In the important case of the human face, standard definitions often require careful orientation of the subject. This paper considers the definitions of facial landmarks from an interdisciplinary perspective, including biological and clinical motivations, issues associated with imaging and subsequent analysis, and the mathematical definition of surface shape using differential geometry. This last perspective provides a route to definitions of landmarks based on surface curvature, often making use of ridge and valley curves, which is genuinely three-dimensional and is independent of orientation. Specific definitions based on curvature are proposed. These are evaluated, along with traditional definitions, in a study that uses a hierarchical (random effects) model to estimate the error variation that is present at several different levels within the image capture process. The estimates of variation at these different levels are of interest in their own right but, in addition, evidence is provided that variation is reduced at the observer level when the new landmark definitions are used.


Asunto(s)
Cara/anatomía & histología , Imagenología Tridimensional/métodos , Puntos Anatómicos de Referencia , Cefalometría/métodos , Humanos , Procesamiento de Imagen Asistido por Computador
7.
Exp Eye Res ; 145: 68-74, 2016 04.
Artículo en Inglés | MEDLINE | ID: mdl-26614910

RESUMEN

Early stages of glaucoma and optic neuropathies are thought to show inner retina remodeling and functional changes of retinal ganglion cells (RGCs) before they die. To assess RGC functional plasticity, we investigated the contrast-gain control properties of the pattern electroretinogram (PERG), a sensitive measure of RGC function, as an index of spatio-temporal integration occurring in the inner retina circuitry subserving PERG generators. We studied the integrative properties of the PERG in mice exposed to different conditions of neurotrophic support. We also investigated the effect of genotypic differences among mouse strains with different susceptibility to glaucoma (C57BL/6J, DBA/2J, DBA/2.Gpnmb(+)). Results show that the integrative properties of the PERG recorded in the standard C57BL/6J inbred mouse strain are impaired after deficit of neurotrophic support and partially restored after exogenous neurotrophic administration. Changes in PERG amplitude, latency, and contrast-dependent responses differ between mouse strains with different susceptibility to glaucoma. Results represent a proof of concept that the PERG could be used as a tool for in-vivo monitoring of RGC functional plasticity before RGC death, the effect of neuroactive treatments, as well as for high-throughput tool for phenotypic screening of different mouse genotypes.


Asunto(s)
Electrorretinografía/métodos , Células Ganglionares de la Retina/fisiología , Animales , Plasticidad de la Célula , Modelos Animales de Enfermedad , Genotipo , Glaucoma/fisiopatología , Ratones , Ratones Endogámicos C57BL , Ratones Endogámicos DBA , Enfermedades del Nervio Óptico/fisiopatología , Estimulación Luminosa
8.
Curr Opin Ophthalmol ; 27(4): 292-7, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27035075

RESUMEN

PURPOSE OF REVIEW: The purpose of this article is to provide an overview and update on recent literature regarding low-add multifocal intraocular lenses (MFIOLs). RECENT FINDINGS: Clinical and benchwork studies involving low-add MFIOLs were reviewed. Clinical studies focused on uncorrected distance, intermediate, and near vision, along with secondary dysphotopsias. Studies done in the laboratory assessed the optical properties of various lenses, and optically replicated visual scenarios at different viewing distances. SUMMARY: MFIOLs continue to evolve to meet the needs of an evolving patient population. Low-add MFIOLs have been shown to improve intermediate vision, while not compromising distance vision, along with decreasing dysphotopsias. Their optical properties continue to be optimized, and with these new improvements, larger groups of patients can benefit from the range of vision provided. It is important to understand the strengths and limitations of these new MFIOLs, this review provided the most up to date review of the literature describing low-add MFIOLs. The new information provided by these reviewed articles allows the ophthalmologist to provide the best options for each individual patient.


Asunto(s)
Implantación de Lentes Intraoculares , Lentes Intraoculares , Presbiopía/cirugía , Procedimientos Quirúrgicos Refractivos/métodos , Extracción de Catarata/métodos , Sensibilidad de Contraste/fisiología , Humanos , Diseño de Prótesis , Agudeza Visual/fisiología
9.
Adv Neonatal Care ; 16(4): 264-72, 2016 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-27391563

RESUMEN

BACKGROUND: Very low birth-weight (<1500 g) infants are vulnerable to their environment during the first hour after birth. We designed an evidence-based golden hour protocol (GHP) with a goal to stabilize and perform admission procedures within 1 hour of birth at a level IIIB neonatal intensive care unit (NICU). PURPOSE: The aim of this quality improvement project was to ascertain whether an evidence-based GHP would improve care efficiency and short-term outcomes. METHODS: Rapid cycles of change using Plan Do Study Act were utilized to document progress and gain knowledge during the quality improvement project. Measures were plotted with statistical process control methods (SPC), which analyzed improvement over time. RESULTS: Both admission temperature and glucose-level means were within reference range throughout the project and predicted a stable process. We observed significantly decreased time to initiation of intravenous fluids and antibiotics. An upward trend of surfactant administration within the first 2 hours of life was also observed. IMPLICATIONS FOR PRACTICE: The use of a GHP provided an organized approach to admission procedures and care. By using a checklist and recording intervention times, NICU caregivers were more aware of time management for each intervention and were able to decrease time to initiation of intravenous fluids and antibiotics. IMPLICATIONS FOR RESEARCH: Future research should focus on establishing normal blood pressure ranges and safe pain management during the "golden hour" and beyond. Future quality improvement should focus on improving subsequent temperature and blood glucose levels after admission umbilical artery and venous catheter placement.


Asunto(s)
Cuidado del Lactante/métodos , Recién Nacido de muy Bajo Peso , Cuidado Intensivo Neonatal/métodos , Grupo de Atención al Paciente/organización & administración , Mejoramiento de la Calidad , Tiempo de Tratamiento , Antibacterianos/administración & dosificación , Glucemia , Temperatura Corporal , Protocolos Clínicos , Fluidoterapia , Humanos , Recién Nacido , Surfactantes Pulmonares/administración & dosificación
10.
Am J Perinatol ; 32(10): 910-5, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-25763713

RESUMEN

The historical review of how evidence was developed for the management of respiratory distress syndrome in premature infants has not been clearly characterized. Knowledge of this process is essential to understand the role of equipoise and its influence on the decision to evaluate interventions as they were implemented in the practice of medicine. We suspect that errant approaches to clinical equipoise secondary to states of false certainty and false uncertainty have been important barriers to the timely acquisition and implementation of evidence-based knowledge necessary to improve outcomes in this fragile population of infants. When confronted with the decision to test an intervention, physicians should question whether they have lost clinical equipoise based on opinion, expertise, or observational data rather than evidence obtained from methodological inquiry; doing so facilitates reaching clinical equipoise and promotes the application of scientific methodology to answer relevant clinical questions. Timely acquisition of evidence-based knowledge can be viewed as an ethical imperative when the status quo may have negative consequences on outcomes for generations.


Asunto(s)
Presión de las Vías Aéreas Positiva Contínua/métodos , Glucocorticoides/uso terapéutico , Surfactantes Pulmonares/uso terapéutico , Síndrome de Dificultad Respiratoria del Recién Nacido/terapia , Equipoise Terapéutico , Investigación Biomédica , Displasia Broncopulmonar/prevención & control , Presión de las Vías Aéreas Positiva Contínua/historia , Manejo de la Enfermedad , Medicina Basada en la Evidencia , Glucocorticoides/historia , Historia del Siglo XX , Historia del Siglo XXI , Humanos , Recién Nacido , Recien Nacido Prematuro , Atención Perinatal , Surfactantes Pulmonares/historia , Síndrome de Dificultad Respiratoria del Recién Nacido/historia
11.
Am J Physiol Heart Circ Physiol ; 307(5): H732-40, 2014 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-24993047

RESUMEN

Sepsis is strongly associated with patency of the ductus arteriosus (PDA) in critically ill newborns. Inflammation and the aminoglycoside antibiotics used to treat neonatal sepsis cause smooth muscle relaxation, but their contribution to PDA is unknown. We examined whether: 1) lipopolysaccharide (LPS) or inflammatory cytokines cause relaxation of the ex vivo mouse DA; 2) the aminoglycosides gentamicin, tobramycin, or amikacin causes DA relaxation; and 3) newborn infants treated with aminoglycosides have an increased risk of symptomatic PDA (sPDA). Changes in fetal mouse DA tone were measured by pressure myography in response to LPS, TNF-α, IFN-γ, macrophage-inflammatory protein 2, IL-15, IL-13, CXC chemokine ligand 12, or three aminoglycosides. A clinical database of inborn patients of all gestations was analyzed for association between sPDA and aminoglycoside treatment. Contrary to expectation, neither LPS nor any of the inflammatory mediators caused DA relaxation. However, each of the aminoglycosides caused concentration-dependent vasodilation in term and preterm mouse DAs. Pretreatment with indomethacin and N-(G)-nitro-L-arginine methyl ester did not prevent gentamicin-induced DA relaxation. Gentamicin-exposed DAs developed less oxygen-induced constriction than unexposed DAs. Among 488,349 infants who met the study criteria, 40,472 (8.3%) had sPDA. Confounder-adjusted odds of sPDA were higher in gentamicin-exposed infants, <25 wk and >32 wk. Together, these findings suggest that factors other than inflammation contribute to PDA. Aminoglycoside-induced vasorelaxation and inhibition of oxygen-induced DA constriction support the paradox that antibiotic treatment of sepsis may contribute to DA relaxation. This association was also found in newborn infants, suggesting that antibiotic selection may be an important consideration in efforts to reduce sepsis-associated PDA.


Asunto(s)
Conducto Arterioso Permeable/fisiopatología , Conducto Arterial/efectos de los fármacos , Gentamicinas/farmacología , Sepsis/complicaciones , Vasodilatación , Animales , Quimiocina CXCL12/farmacología , Conducto Arterial/fisiopatología , Conducto Arterioso Permeable/etiología , Humanos , Técnicas In Vitro , Indometacina/farmacología , Recién Nacido , Interferón gamma/farmacología , Interleucinas/farmacología , Lipopolisacáridos/farmacología , Ratones , Ratones Endogámicos C57BL , NG-Nitroarginina Metil Éster/farmacología , Factor de Necrosis Tumoral alfa/farmacología
12.
Psychiatry Res ; 342: 116213, 2024 Sep 21.
Artículo en Inglés | MEDLINE | ID: mdl-39326274

RESUMEN

Development of the craniofacies occurs in embryological intimacy with development of the brain and both show normal left-right asymmetries. While facial dysmorphology occurs to excess in psychotic illness, facial asymmetry has yet to be investigated as a putative index of brain asymmetry. Ninety-three subjects (49 controls, 22 schizophrenia, 22 bipolar disorder) received 3D laser surface imaging of the face. On geometric morphometric analysis with (x, y, z) visualisations of statistical models for facial asymmetries, in controls the upper face and periorbital region, which share embryological intimacy with the forebrain, showed marked asymmetries. Their geometry included: along the x-axis, rightward asymmetry in its dorsal-medial aspects and leftward asymmetry in its ventral-lateral aspects; along the z-axis, anterior protrusion in its right ventral-lateral aspect. In both schizophrenia and bipolar disorder these normal facial asymmetries were diminished, with residual retention of asymmetries in bipolar disorder. This geometry of normal facial asymmetries shows commonalities with that of normal frontal lobe asymmetries. These findings indicate a trans-diagnostic process that involves loss of facial asymmetries in both schizophrenia and bipolar disorder. Embryologically, they implicate loss of face-brain asymmetries across gestational weeks 7-14 in processes that involve genes previously associated with risk for schizophrenia.

13.
Life (Basel) ; 13(4)2023 Apr 17.
Artículo en Inglés | MEDLINE | ID: mdl-37109560

RESUMEN

Motor neuron diseases (MNDs) are a group of chronic neurological disorders characterized by the progressive failure of the motor system. Currently, these disorders do not have a definitive treatment; therefore, it is of huge importance to propose new and more advanced diagnoses and treatment options for MNDs. Nowadays, artificial intelligence is being applied to solve several real-life problems in different areas, including healthcare. It has shown great potential to accelerate the understanding and management of many health disorders, including neurological ones. Therefore, the main objective of this work is to offer a review of the most important research that has been done on the application of artificial intelligence models for analyzing motor disorders. This review includes a general description of the most commonly used AI algorithms and their usage in MND diagnosis, prognosis, and treatment. Finally, we highlight the main issues that must be overcome to take full advantage of what AI can offer us when dealing with MNDs.

14.
Neuroscience ; 511: 39-52, 2023 02 10.
Artículo en Inglés | MEDLINE | ID: mdl-36156289

RESUMEN

Cannabinoids regulate analgesia, which has aroused much interest in identifying new pharmacological therapies in the management of refractory pain. Voltage-gated Na+ channels (Navs) play an important role in inflammatory and neuropathic pain. In particular, Nav1.9 is involved in nociception and the understanding of its pharmacology has lagged behind because it is difficult to express in heterologous systems. Here, we utilized the chimeric channel hNav1.9_C4, that comprises the extracellular and transmembrane domains of hNav1.9, co-expressed with the ß1 subunit on CHO-K1 cells to characterize the electrophysiological effects of ACEA, a synthetic surrogate of the endogenous cannabinoid anandamide. ACEA induced a tonic block, decelerated the fast inactivation, markedly shifted steady-state inactivation in the hyperpolarized direction, decreasing the window current and showed use-dependent block, with a high affinity for the inactivated state (ki = 0.84 µM). Thus, we argue that ACEA possess a local anaesthetic-like profile. To provide a mechanistic understanding of its mode of action at the molecular level, we combined induced fit docking with Monte Carlo simulations and electrostatic complementarity. In agreement with the experimental evidence, our computer simulations revealed that ACEA binds Tyr1599 of the local anaesthetics binding site of the hNav1.9, contacting residues that bind cannabinol (CBD) in the NavMs channel. ACEA adopted a conformation remarkably similar to the crystallographic conformation of anandamide on a non-homologous protein, obstructing the Na+ permeation pathway below the selectivity filter to occupy a highly conserved binding pocket at the intracellular side. These results describe a mechanism of action, possibly involved in cannabinoid analgesia.


Asunto(s)
Ácidos Araquidónicos , Cannabinoides , Humanos , Ácidos Araquidónicos/farmacología , Canales de Sodio , Dolor , Anestésicos Locales , Bloqueadores de los Canales de Sodio/farmacología
15.
Rev Esc Enferm USP ; 57(spe): e20230032, 2023.
Artículo en Inglés, Español | MEDLINE | ID: mdl-37992303

RESUMEN

OBJECTIVE: To identify condom use and drug consumption in migrants, as well as the association between these variables. METHOD: A systematic search was carried out for articles published in Spanish and English (2017-2022), in PubMed, EBSCO, WEB of SCIENCE, Elsevier, Scielo, Redalyc, with eligible studies reporting on condom use and drug consumption, and their association. RESULTS: The search strategy found 147 articles with the combination of terms and other sources. After excluding articles by title, abstract, and finding that they had the study variables, eight articles were included for qualitative analysis and only three met the criteria for quantitative analysis. CONCLUSION: Drug consumption favors inconsistent condom use, increasing the risk of acquiring an STI, and can lead to other mental health issues derived from the use of these substances.


Asunto(s)
Condones , Migrantes , Humanos
16.
Front Psychol ; 14: 1156696, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37794910

RESUMEN

Introduction: This article presents a systematic literature review that follows the PRISMA and PICOS guidelines to analyze current research trends on cognition, integrative complexity (IC) (a cognitive feature focusing on information processing in a person's response rather than its quantity or quality), and decision-making from the perspectives of activity theory and neuroscience. Methods: The study examines 31 papers published between 2012 and 2022 and 19 articles specifically related to neuroscience. We performed a content analysis using six categories within activity theory: subjects, objects, rules, community, division of labor, and outcomes. Results: The study investigates the relationship between decision-making outcomes and IC as a cognitive feature in various contexts. Additionally, content analysis on neuroscience and IC revealed significant research gaps, including understanding the nature of IC, challenges related to its measurement, and differentiation from other cognitive features. We also identify opportunities for investigating the brain's activity during decision-making in relation to IC. Discussion: We address the need for a more precise categorization of IC in studies of cognition, IC, and decision-making. We discuss the implications of our analysis for understanding the cognitive nature of IC and the potential of neuroscience methods for studying this attribute.

17.
PLoS One ; 18(10): e0290683, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37797048

RESUMEN

BACKGROUND: Recent advances in Computational Intelligence Tools and the escalating need for decision-making in the face of complex and uncertain phenomena like pandemics, climate change, and geopolitics necessitate understanding the interaction between these tools and human behavior. It is crucial to efficiently utilize the decision-makers cognitive resources in addressing specific problems. METHODS: The main goal of this present protocol is to describe the effect that CITs (Computational Intelligence Tools) have on decisions made during complex and uncertain situations. It is an exploratory study with a mixed methodology. Solomon's group experiment design includes a narrative analysis of cognitive features such as integrative complexity (IC), cognitive flexibility (CF), and fluid intelligence (FI). Additionally, measures of neural activity (NA), physiological measures (PM), and eye-tracking data (ET) will be collected during the experimental session to examine the marginal impact of these processes on decision outcomes (DO) and their relation to CIT capabilities. To achieve this objective, 120 undergraduate and graduate students involved in decision-making will participate as subjects. The approximate duration of the study will be 2 years. Strict adherence to the relevant ethical considerations will be maintained during the performance of the experimental tasks. DISCUSSION: The study will provide valuable information on CITs' effect on decision-making under complex and uncertain contexts. This will help to better understand the link between technology and human behavior, which has important implications. CIT designers can use future results and at the same time, it will be possible to understand cognitive, behavioral, physiological processes, and even the subjective assessment of individuals when they use technological tools to solve a problem.


Asunto(s)
Inteligencia Artificial , Cognición , Humanos , Incertidumbre
18.
Front Hum Neurosci ; 16: 867377, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35754778

RESUMEN

Hands-free interfaces are essential to people with limited mobility for interacting with biomedical or electronic devices. However, there are not enough sensing platforms that quickly tailor the interface to these users with disabilities. Thus, this article proposes to create a sensing platform that could be used by patients with mobility impairments to manipulate electronic devices, thereby their independence will be increased. Hence, a new sensing scheme is developed by using three hands-free signals as inputs: voice commands, head movements, and eye gestures. These signals are obtained by using non-invasive sensors: a microphone for the speech commands, an accelerometer to detect inertial head movements, and an infrared oculography to register eye gestures. These signals are processed and received as the user's commands by an output unit, which provides several communication ports for sending control signals to other devices. The interaction methods are intuitive and could extend boundaries for people with disabilities to manipulate local or remote digital systems. As a study case, two volunteers with severe disabilities used the sensing platform to steer a power wheelchair. Participants performed 15 common skills for wheelchair users and their capacities were evaluated according to a standard test. By using the head control they obtained 93.3 and 86.6%, respectively for volunteers A and B; meanwhile, by using the voice control they obtained 63.3 and 66.6%, respectively. These results show that the end-users achieved high performance by developing most of the skills by using the head movements interface. On the contrary, the users were not able to develop most of the skills by using voice control. These results showed valuable information for tailoring the sensing platform according to the end-user needs.

19.
J Perinatol ; 42(6): 803-808, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35411018

RESUMEN

BACKGROUND: Cardiopulmonary events (CPE) have a central, obstructive, or mixed etiology. Lack of standardized diagnosis and management of CPE may prolong the length of stay (LOS). OBJECTIVE: To increase the accuracy of CPE diagnosis and decrease LOS by 10% for preterm infants over a 12-month period. METHODS: Develop an evidence-based algorithm to identify type of CPE, determine management approach, and evaluate cardio-respiratory monitors output. Apply model for improvement and statistical process control charts to determine special cause variation. RESULTS: Identification of central apnea increased from 15 to 39% (p < 0.01). LOS decreased 26% from 52.6 days to 39.2 days, with an estimated cost savings of $13,119 per each of the 225 infants in the initiative. CONCLUSION: After implementing an evidence-based algorithm for management of neonatal CPE, a significant increase in the accuracy of the diagnosis of central apnea and cost savings associated with a decrease in LOS were observed.


Asunto(s)
Alta del Paciente , Apnea Central del Sueño , Apnea/diagnóstico , Apnea/terapia , Humanos , Lactante , Recién Nacido , Recien Nacido Prematuro , Recién Nacido de muy Bajo Peso , Tiempo de Internación , Mejoramiento de la Calidad
20.
Am J Ophthalmol ; 233: 90-100, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34214453

RESUMEN

PURPOSE: To evaluate the safety of the Fecal Microbial Transplant for Sjogren Syndrome (FMT) trial in individuals with immune-mediated dry eye (DE). DESIGN: Open-label, nonrandomized clinical trial. METHODS: The study population included 10 individuals with DE symptoms and signs meeting criteria for Sjögren or positive early Sjögren markers. Procedures were 2 FMTs from a single healthy donor delivered via enema, 1 week apart. The primary outcome measure was safety. In addition, gut microbiome profiles, DE metrics, and T-cell profiles in blood were examined at baseline before FMT, and at 1 week, 1 month, and 3 months after FMT. RESULTS: The mean age of the population was 60.4 years; 30% were male; 50% were white; and 50% were Hispanic. At baseline, all subjects had significantly different gut microbiome profiles from the donor, including higher mean diversity indices. Subjects had a decreased abundance of genera Faecalibacterium, Prevotella, and Ruminococcus and an increased abundance of genera Alistipes, Streptococcus, and Blautia compared to the donor. Effector and regulatory T-cell profiles were positively correlated with each other and with DE symptom severity (T helper 1 cells [Th1]; r = .76; P = .01; Th17: r = 0.83; P = .003; CD25: r = 0.66; P = .04; FoxP3: r = 0.68; P = .03). No adverse events were noted with FMT. After FMT, gut microbiome profiles in 8 subjects moved closer to the donor's profile. As a group, gut microbiome profiles at all follow-up time points were more similar to the original recipients' than the donor's microbiome; however, certain phyla, classes, and genera operational taxonomic unit (OTU) numbers remained closer to the donor vs recipients' baseline profiles out to 3 months. Five individuals subjectively reported improved dry eye symptoms 3 months after FMT. CONCLUSIONS: FMT was safely performed in individuals with immune-mediated DE, with certain bacterial profiles resembling the donor out to 3 months after FMT. One-half the subjects reported improved DE symptoms. The most effective FMT administration method has yet to be determined.


Asunto(s)
Síndromes de Ojo Seco , Microbioma Gastrointestinal , Microbiota , Síndromes de Ojo Seco/terapia , Trasplante de Microbiota Fecal , Heces , Humanos , Masculino , Persona de Mediana Edad , Resultado del Tratamiento
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA