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Accurate isolation and identification of pathogens for an animal with bovine respiratory disease are of critical importance to direct appropriate decision-making related to the treatment of individual animals, as well as control and prevention options in a herd setting. The objective of this study was to compare nasopharyngeal sampling approaches to evaluate accuracy and agreement for the recovery of Mannheimia haemolytica (MH) and Pasteurella multocida (PM) from deep nasopharyngeal swabs (DNS) using 3 different swabs. Deep nasopharyngeal samples were collected from 45 dairy calves using 3 swabs: (1) double-guarded culture swab (DGS); (2) single-guarded culture swab (SGS); and (3) unguarded culture swab (UGS). To evaluate the degree of agreement between DGS, SGS, and UGS, culture results were compared for each calf sampled by using a kappa agreement test. Overall, findings from our study support that when using either SGS or DGS for DNS sampling of preweaning calves, a high agreement for recovery of PM is observed. A low recovery of MH was observed in the study, limiting the conclusion comparing the 3 DNS methods. Use of UGS is considered a potential alternative; however, a higher percentage of polymicrobial growth was found with UGS samples.
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Appropriate sample collection, storage conditions, and time for transport to the laboratory are important for an accurate diagnostic result. We evaluated the effects of transport storage medium type, time of storage, and storage temperatures on Mannheimia haemolytica (MH) and Pasteurella multocida (PM) recovery using an in vitro model simulation. A quantitative culture method, using colony-forming units per milliliter, was used to recover MH or PM by an in vitro model with cotton swabs. Three independent trials were conducted, in which cotton swabs were inoculated with MH or PM and placed in either (1) a sterile 15-mL polypropylene tube without transport medium (dry), (2) Amies culture medium with charcoal (ACM), or (3) Cary-Blair transport agar (CBA). Swabs were evaluated for recovery of MH or PM when stored at 3 temperatures (4°C, 23°C, or 36°C) and after storage for 8 h, 24 h, or 48 h. From all study group combinations, a total of 162 individual independent swabs were evaluated. The nonparametric Dunn all-pairs approach was used to compare the proportion of culturable bacteria, between the various storage media, temperature, and time point combinations. The proportion of MH in samples stored at 4°C was significantly higher for ACM and CBA than dry storage at 24 and 48 h. The MH samples stored at 36°C had a significantly higher proportion for ACM and CBA than dry storage at 24 h. The proportion of PM in samples stored at 4°C was significantly lower for ACM compared with dry at 8 h but significantly higher at 48 h. The PM samples stored at 23°C in ACM had a significantly higher proportion than dry samples at 24 h, and, at 48 h, ACM and CBA had a significantly higher proportion than the dry group. All swabs stored at 36°C for 48 h had a proportion close to zero, indicating decreasing diagnostic efficacy. These results support the use of transport media such as ACM and CBA for increasing the detection of PM and MH from samples, especially when samples are exposed to high temperatures. The combination of longer periods from collection of samples to diagnostic evaluation (>24 h) and higher storage temperatures (>23°C) were shown to significantly impair diagnostic accuracy.
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Fires can pose a threat to forest ecosystems when those ecosystems are not fire-adapted or when forest community conditions make them vulnerable to wildfires. Thus, investigating fire-prone environmental conditions is urgently needed to create action plans that preserve these ecosystems. In this sense, climate variables can determine the environmental conditions favorable for forest fires. Our study confirms that vapor pressure deficit (VPD) is an essential climate indicator for forest fires, as it is related to maximum temperatures and low humidity, representing the stress conditions for vegetation prone to fires. This study explores the extent to which ENSO phases can modulate climatic conditions that lead to high VPD over Guanajuato, a semi-arid region in central Mexico, during the dry season (March-April-May). Using fire occurrence data from MODIS (2000-2019) and Landsat 5 (1998-1999), we developed a climatic probability model for the occurrence of forest fires using VPD estimated from ERA5 reanalysis for each ENSO phase. We found that VPD and the occurrence of forest fires were higher during El Niño than under Neutral and La Niña years, with a higher risk of forest fire occurrence in Guanajuato's southern region. This study concludes that it is necessary to implement regional and local fire management plans, especially where the largest number of natural protected areas is located.
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Incendios , Incendios Forestales , Ecosistema , Monitoreo del Ambiente , Bosques , ProbabilidadRESUMEN
BACKGROUND: When approaching a joint replacement procedure, pre-surgical planning is essential to predict an accurate estimation of implant size and position. There are currently two methods to achieve it, analog and digital. The present study aims to demonstrate how the hybrid technique is accurate and precise for pre-surgical planning in a non-cemented total hip replacement. METHODS: Concordance-type study is used against a gold standard, as well as inter- and intra-observer consistency evaluation of two orthopedic surgeons and two orthopedic surgery residents. Accuracy was calculated with the intra-class correlation coefficient (ICC). Afterwards, the same calculation was done considering a margin of error with one size more and one less. RESULTS: Thirty-eight patients were included in the study: 19 women and 19 men. Twenty-two prostheses (57.89%) were right-sided and 16 were left (42.11%). Twelve prostheses (31.57%) were Stryker and 26 Johnson & Johnson (68.43%). Acetabular cup correlation compared with the gold standard was moderate: ICC reported 0.45 (95% CI, 0.15-0.76). When adjusted by ± 1 size, ICC was 0.48 (95% CI, 0.18-0.79). On the other hand, results from the femoral stem reported ICC 0.85 (95% CI, 0.07-0.98). When adjusted by ± 1 size, ICC was 0.86 (95% CI, 0.06-0.99). CONCLUSIONS: Hybrid templating is a reliable substitute for analog or digital planning. It is quick, inexpensive, accurate, and better results are observed in the femoral component regardless the level of expertise of the evaluator. LEVEL OF EVIDENCE: Grade IV.
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Artroplastia de Reemplazo de Cadera , Prótesis de Cadera , Procesamiento de Imagen Asistido por Computador/métodos , Medicina de Precisión/métodos , Cuidados Preoperatorios/métodos , Diseño de Prótesis/métodos , Acetábulo/cirugía , Acetatos , Femenino , Fémur/cirugía , Humanos , Masculino , Variaciones Dependientes del Observador , Osteoartritis de la Cadera/cirugía , Modelación Específica para el Paciente , Técnicas de Planificación , Reproducibilidad de los Resultados , Estudios RetrospectivosRESUMEN
This study was performed to elucidate whether the route of booster vaccination affects the immune response against respiratory vaccine viruses in pre-weaning beef calves that receive primary intranasal (IN) vaccination during the first month of life. The objective was to compare the serum neutralizing antibody (SNA) titers to BHV1, BRSV, and BPI3V, cytokine mRNA expression and mucosal BHV1- and BRSV-specific IgA in nasal secretions following administration of IN or subcutaneous (SC) modified-live virus (MLV) booster vaccines 60 days after primary IN vaccination in young beef calves. Twenty-one beef calves were administered 2 mL of an IN MLV vaccine containing BHV1, BRSV, and BPI3V (Inforce3®) between one and five weeks of age. Sixty days after primary vaccination, calves were randomly assigned to one of two groups: IN-MLV (n = 11): Calves received 2 mL of the same IN MLV vaccine used for primary vaccination and 2 mL of a SC MLV vaccine containing BVDV1 & 2 (Bovi- Shield GOLD® BVD). SC-MLV (n = 10): Calves were administered 2 mL of a MLV vaccine containing, BHV1, BRSV, BPI3V, and BVDV1 & 2 (Bovi-Shield GOLD® 5). Blood and nasal secretion samples were collected on days -61 (primary vaccination), -28, -14, 0 (booster vaccination), 14, 21, 28, 42 and 60 for determination of SNA titers, cytokine gene expression analysis and nasal virus-specific IgA concentrations. Statistical analysis was performed using a repeated measures analysis through PROC GLIMMIX of SAS®. Booster vaccination by neither IN nor SC routes induced a significant increase in SNA titers against BHV1, BRSV, and BPI3V. Subcutaneous booster vaccination induced significantly greater BRSV-specific SNA titers (on day 42) and IgA concentration in nasal secretions (on days 21 and 42) compared to calves receiving IN booster vaccination. Both IN and SC booster vaccination were able to stimulate the production of BHV1-specific IgA in nasal secretions. In summary, booster vaccination of young beef calves using either SC or IN route two months after IN MLV primary vaccination resulted in comparable SNA titers, cytokine gene expression profile and virus-specific IgA concentration in nasal secretions. Only a few differences in the systemic and mucosal immune response against BHV1 and BRSV were observed. Subcutaneous booster vaccination induced significantly greater BRSV-specific SNA and secretory IgA titers compared to IN booster vaccination.
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Enfermedades de los Bovinos/inmunología , Vacunas contra Virus Sincitial Respiratorio/inmunología , Virus Sincitial Respiratorio Bovino/inmunología , Administración Intranasal/veterinaria , Animales , Animales Recién Nacidos , Anticuerpos Neutralizantes/sangre , Anticuerpos Neutralizantes/inmunología , Anticuerpos Antivirales/sangre , Anticuerpos Antivirales/inmunología , Bovinos , Enfermedades de los Bovinos/prevención & control , Citocinas/sangre , Inmunización Secundaria/veterinaria , Inmunogenicidad Vacunal , Vacunas contra Virus Sincitial Respiratorio/administración & dosificaciónRESUMEN
Biomass burning from grassland, forests, and agricultural waste results in large amounts of gases and particles emitted to the atmosphere, which affect air quality, population health, crop development, and natural vegetation. Regional atmospheric circulations can transport those plumes of pollutants over hundreds of kilometers, affecting vulnerable environments such as those considered protected natural areas (PNAs). This study evaluates the spatiotemporal distribution of active fires detected, and associated emissions, in central and southern Mexico from satellite data between March and June 2017, to assess the impact of the smoke plumes on protected ecosystems. The arrival of smoke plumes to selected PNAs (both near large urban centers and in remote areas) is assessed using airmass forward trajectories from selected emission sources. The spatial distribution of the remotely derived aerosol optical depth confirms the regional impact of particle emissions from the observed fires on PNAs, particularly in central Mexico. The identified areas of high fire density are also associated with large coarse particle concentrations at the surface. Moreover, there is a significant contribution of organic carbon to the total coarse particle mass, 60% on average. Finally, while most of the impact in ambient pollution is observed in PNAs located close to the regions with active fires in southern Mexico and Central America, the long-range transport of smoke plumes reaching the USA was also confirmed.
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Contaminantes Atmosféricos , Incendios , Contaminantes Atmosféricos/análisis , Biomasa , Ecosistema , Monitoreo del Ambiente , MéxicoRESUMEN
Bovine antisperm antibodies (ASAs) have been associated with teratospermia and asthenospermia. It was hypothesized here that scrotal insulation induces the formation of ASAs and deterioration of sperm function. Scrotal insulation bags were placed in 10 bulls for 8 days. Semen was collected on days -29, -22 and -2, twice weekly from days 5 to 54, and thereafter weekly until day 96 (day 0 = first day of scrotal insulation). On each collection day, scrotal circumference, sperm motility, morphology, membrane integrity, acrosome integrity, apoptosis, lipid peroxidation, mitochondrial membrane potential, ASA binding and DNA integrity were evaluated. The percentage of IgG- and IgA-bound sperm increased between days 12 and 96 (P < 0.0001), in association with poor motility (days 19-30, P < 0.005) and morphology (days 8-40, P < 0.0001). Mean scrotal circumference decreased between days 15 and 75 (P < 0.0001). There was also a deterioration in sperm membrane integrity (days 19-40, P < 0.0001), acrosome integrity (days 26-89, P < 0.0001), lipid peroxidation (days 5-12, P < 0.0001), and mitochondrial membrane potential (days 12-96, P = 0.001). In contrast, a decrease in apoptotic cells (days 37-83, P = 0.0002) and lipid peroxidation (days 19-96, P < 0.0001) was noticed. Most bulls recovered normospermia by day 96. However, the persistence of ASAs, acrosomal damage and dysfunctional mitochondria suggest a long term effect of scrotal insulation on sperm function and the homeostasis of the reproductive immune system.
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Inmunoglobulina A/inmunología , Inmunoglobulina G/inmunología , Escroto/fisiología , Motilidad Espermática , Espermatozoides/fisiología , Acrosoma/fisiología , Animales , Especificidad de Anticuerpos , Apoptosis , Bovinos , Inmunoglobulina A/metabolismo , Inmunoglobulina G/metabolismo , Peroxidación de Lípido , Masculino , Potencial de la Membrana MitocondrialRESUMEN
Multiligament injuries of the knee (MLKI), remain an infrequent pathology especially in developed countries compared to mono-ligament lesions. In Colombia, MLKI is frequent due to the high accident rate on motorcycles. In the city of Bogota alone, about 160 motorcycle accidents have been estimated daily, being one of the cities that proportionately use this means of transport less compared to small cities. The term MLKI, include all ruptures of two or more major ligaments and therefore it has a broad spectrum of clinical presentation which creates a great challenge for the orthopedists and the surgeons envolved in this topic. The literature is rich in studies level IV but very poor in level I and level II, which generates controversies and little consensus in the diagnosis and treatment of this pathology. However there has been a gradual and better understanding of all factors involved in the treatment of MLKI that has improved the functional results of these knees in our patients, in fact we currently are more precise to achieve accurate diagnosis, evolved from not surgical approach to operate most, applying new anatomical and biomechanical concepts, with specialized and skill surgical techniques with more stable and biocompatible fixation implants, which allow in most cases to initiate an early integral rehabilitation program. Nevertheless due to the complexity and severity of the lesions, in some patients the functional results are poor. The goal of this revision is to identify the most frequent controversies in the diagnosis and treatment of MLKI, defining which of them are agreed according to what is reported in the literature and share some concepts based from the experience of more than 25 years of the senior author (MM) in the management of these injuries. LEVEL OF EVIDENCE: V - Expert Opinion.
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Strategies to improve the onset of protective immunity induced by vaccination against respiratory pathogens may have a significant impact on health of newly received beef calves. The objective was to determine if the use of injectable trace minerals (ITM; Se, Zn, Cu, and Mn) concurrent with a modified-live virus (MLV) vaccine enhances the immune response and onset of protection in beef calves challenged with BVDV2 five days after vaccination. Forty-five calves were randomly assigned to one of three groups (15/group): VACâ¯+â¯ITM, received MLV-vaccine and ITM (Multimin®90) subcutaneously (SC); VACâ¯+â¯SAL, received the same vaccine and saline SC; or UNVAC, unvaccinated. Five days after vaccination (d.0), calves were challenged with BVDV2 strain 890. Health status was evaluated and blood samples were collected for leukocyte counts, BVDV1 and 2 serum neutralizing antibodies (SNA), BVDV-PCR, and percentage of CD4+, CD8+, WC1+ and CD25+ T-cells. VACâ¯+â¯ITM had lower health scores than UNVAC (d.8 and 9). VACâ¯+â¯ITM had higher BVDV1 & 2 SNA titers than VACâ¯+â¯SAL and UNVAC on d.21 and 28. Lymphocyte counts decreased in UNVAC but not in VACâ¯+â¯ITM or VACâ¯+â¯SAL (d.3 to 11). CD4+ T-cells significantly decreased in UNVAC and VACâ¯+â¯SAL (d.3). VACâ¯+â¯ITM had higher percentage of CD4+ T-cells than UNVAC (d.3 and 7). VACâ¯+â¯ITM had lower percentage of activated CD4+ and CD8+ T-cells than UNVAC (d.7). In summary, vaccination induced a rapid protection against BVDV2 infection. Administration of ITM was associated with increased SNA response to BVDV1 & 2, enhanced health status, mitigation of CD4+ T-cells decrease, and reduction of T-cell activation in calves challenged with BVDV2 five days after immunization. These results support the strategic use of ITM concurrent with vaccination, especially when a rapid protection is needed in newly received beef calves.
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Anticuerpos Antivirales/sangre , Diarrea Mucosa Bovina Viral/prevención & control , Enfermedades de los Bovinos/prevención & control , Oligoelementos/administración & dosificación , Vacunas Virales/inmunología , Factores de Edad , Animales , Anticuerpos Neutralizantes/sangre , Diarrea Mucosa Bovina Viral/inmunología , Bovinos , Enfermedades de los Bovinos/inmunología , Enfermedades de los Bovinos/virología , Virus de la Diarrea Viral Bovina Tipo 2 , Oligoelementos/inmunología , Vacunación , Vacunas Atenuadas/administración & dosificación , Vacunas Atenuadas/inmunología , Vacunas Virales/administración & dosificaciónRESUMEN
The Colombian Tropical Andes are one of the regions with highest bird diversity on Earth. However, information on bird morphology, reproductive phenology, and molt is particularly scarce in this region. Also, this region is heavily impacted by deforestation, and it is vulnerable to climate change. Hence, providing baseline information on life history and morphological traits will be essential to support future research on functional diversity, climate change effects, conservation, evolution, and phenology. To fill this gap, we have compiled information on bird distribution, morphology, molt, and reproductive phenology at 52 localities of the Department of Caldas, covering an elevation range between 148 and 3845 m. This compilation comprises a wide range of habitats, including native forests, forestry plantations, croplands, and paramo. Our database presents information for 3,398 records belonging to 379 bird species (representing 23 orders, 53 families, and 258 genera). From those records, 2,843 correspond to information collected in the field between 2008 and 2019, and the remaining 555 records correspond to specimens deposited in the Natural History Museum of the Caldas University, collected between 1969 and 2014. We measured nine morphological traits from all specimens: total culmen, gape, bill width, bill depth, tarsus, wing length, tail length, total length, and mass. We also have reproductive condition information for 257 species and molt information available for 378 species. The information contained in this data set represents ~20% of the Colombian avifauna and ~11% of the bird species richness in South America. This data set is released for non-commercial use only. Credits should be given to this paper (i.e., proper citation), and the products generated with this database should be shared under the same license terms (CC BY-NC-SA).
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Aves , Bosques , Animales , Colombia , Ecosistema , Humanos , América del SurRESUMEN
INTRODUCTION: Leptospirosis is a zoonotic disease caused by a bacteria of the genus Leptospira. Climate is key in order to understand leptospirosis dynamics. El Niño Southern Oscillation is the main modulator of climate in Colombia. Our goal was to analyze the changes that occurred in number of cases and incidence rate of leptospirosis during La Niña and El Niño episodes in Colombia at three spatial scales in the period between 2007 and 2015. METHODOLOGY: A cross-sectional retrospective study was performed. DATA ANALYSIS: correlation and lagged cross correlation between time series of Oscillation Niño Index and time series of standardized number of leptospirosis cases; construction of annual cycle of leptospirosis; comparison of changes of number of cases between Neutral, periods with El Niño and Neutral periods with La Niña. RESULTS: At the national level, monthly number of cases raised a 25% during La Niña and decreased of 17% during El Niño. At departmental level, increase of cases in both phases of ENSO, depending on the location in the country, was found. At the municipal level, 17 have a rise in the number of cases during La Niña months. Of those, seven presented also an increase of cases during El Niño months and eight have a significant negative correlation with ONI. CONCLUSIONS: In Colombia, there exists a relationship between leptospirosis and the excess and lack of rainfall related with ENSO. The contrasting results from each spatial scale, reinforce that leptospirosis is a multidimensional disease with high complex interactions among its determinants.
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El Niño Oscilación del Sur , Leptospirosis/epidemiología , Colombia/epidemiología , Estudios Transversales , Sequías , El Niño Oscilación del Sur/efectos adversos , Humanos , Incidencia , Lluvia , Estudios Retrospectivos , Factores de RiesgoRESUMEN
The present work uses a new approach to causal inference between complex systems called the Recurrence Measure of Conditional Dependence (RMCD) based on the recurrence plots theory, in order to study the role of the Amazon River basin (AM) as a land-atmosphere bridge between the Niño 3.0 region in the Pacific Ocean and the Tropical North Atlantic. Two anomalous droughts in the Amazon River basin were selected, one mainly attributed to the warming of the Tropical North Atlantic (2005) and the other to a warm phase of El Niño-Southern Oscillation (2010). The results of the RMCD analysis evidence the distinctive behavior in the causal information transferred between the two oceanic regions during the two extreme droughts, suggesting that the land-atmosphere bridge operating over the AM is an active hydroclimate mechanism at interannual timescales, and that the RMCD analysis may be an ancillary resort to complement early warning systems.
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RESUMEN Objetivo: Comprender la experiencia de la enfermedad hipertensiva y su tratamiento, y los facilitadores y obstaculizadores de la adherencia en personas mapuche con hipertensión. Método: Cualitativo descriptivo de enfoque fenomenológico, con muestreo intencionado y análisis temático de entrevistas semiestructuradas a 12 participantes hipertensos de la etnia mapuche pertenecientes a un programa cardiovascular en una zona rural del centro sur en Chile. Resultados: La hipertensión se vivencia con desconocimiento, en referencia al sistema occidental de salud y centrada en síntomas fisiológicos como dolor de cabeza y mareos. El tratamiento se percibe con desconfianza y la calidad de la atención deficiente. La familia destaca como mediadora del tratamiento en adherentes y ausente en los no adherentes. Se ingiere preparaciones de plantas naturales para potenciar el efecto del fármaco. No hay referencia a enfermedades y espiritualidad mapuche, y la consulta a agentes ancestrales de salud fue escasa. Conclusión: El conocimiento insuficiente de la hipertensión, desconfianza con el tratamiento, insatisfacción con el trato y el complemento o reemplazo del fármaco por preparados de plantas naturales dificulta la adherencia al tratamiento en indígenas mapuche. La ausencia de referentes sanadores an cestrales, de las categorías mapuche de enfermedad y de la espiritualidad, puede deberse al alejamiento de las tradiciones mapuche. La definición del problema y su tratamiento desde parámetros occidentales indicaría que la tensión cultural está sobredimensionada para explicar la no adherencia.
ABSTRACT Objective: To describe and understand the experience of hypertension as well as factors that help or hinder treatment adherence in Mapuche patients enrolled in a cardiovascular program in the Arauco health service. Method: Qualitative and descriptive study with a phenomenological focus. Sample was comprised of twelve hypertensive Mapuche patients who were subjects of an in-depth interview. Thematic analysis was carried out for information analysis. Results: The hypertension was experienced with unfamiliarity and in reference to the western health system, focused mainly on physiological symptoms such as headaches and dizziness. Treatment was perceived with distrust and the quality of care was perceived as poor. Family stands-out as a mediator of treatment in adherent patients and absent in non-adherents, and a source of information about medicinal herbs. Patients drink herbal infusions to maximize the effects of prescribed medications. There was no reference to any Mapuche disease category or spirituality, and patients did not seek help from health ancestral agents. Conclusion: Insufficient knowledge of hypertension, lack of trust in the treatment, the replacement of prescribed medication with medicinal herbs are some of the obstacles in adherence to treatment in Mapuche patients. Not consulting health ancestral agents and a lack of reference to any Mapuche disease category and spirituality, may be due to the loss of Mapuche traditions. The definition of the health problem and its treatment from a Western perspective would be showing that the cultural tension is over emphasized and explain lack of treatment adherence.
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Humanos , Masculino , Femenino , Adulto , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Etnicidad , Medio Rural , Cumplimiento y Adherencia al Tratamiento , Hipertensión/tratamiento farmacológico , Atención Primaria de Salud , Chile , Epidemiología Descriptiva , Entrevistas como AsuntoRESUMEN
La telangiectasia hemorrágica hereditaria (THH) o síndrome de Rendu-Osler-Weber (SROW) es una displasia vascular autosómica dominante con penetrancia variable, caracterizada por malformaciones arteriovenosas y telangiectasias mucocutáneas. Actualmente, el diagnóstico y pronóstico está orientado a la identificación temprana de factores de riesgo, signos y síntomas, así como en el reconocimiento e identificación de las malformaciones vasculares en los diferentes órganos que se ven afectados por la enfermedad. La aplicación de técnicas percutáneas, por parte de un equipo de radiología intervencionista, hace parte del abordaje en el tratamiento de los pacientes a quienes se les han confirmado malformaciones arteriovenosas en pulmón e hígado, como en los casos que se expondrán en esta revisión. Con estas técnicas de tratamiento se ha logrado curar o paliar las complicaciones que se pudieran generar por las diferentes malformaciones.
Hereditary hemorrhagic telangiectasia (HHT) or Rendu-Osler-Weber syndrome (ROWS) is an autosomal dominant vascular dysplasia with variable penetrance, characterized by arteriovenous malformations and mucocutaneous telangiectasias. The current diagnosis and prognosis is oriented to the early identification of risk factors, signs and symptoms, as well as in the recognition and characterization of vascular malformations in the different organs that are involved by the disease. The application of percutaneous techniques by an interventional radiology team is part of the approach in the treatment of patients with confirmation of arteriovenous malformations in lung and liver, such as in the cases that will be exposed in this revision. These treatment techniques have achieved the curative or palliative control of the different complications that could be generated by the different malformations.
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Humanos , Telangiectasia Hemorrágica Hereditaria , Malformaciones Arteriovenosas , Fístula Arteriovenosa , Embolización Terapéutica , Procedimientos EndovascularesRESUMEN
Identifying causal relations from observational data sets has posed great challenges in data-driven causality inference studies. One of the successful approaches to detect direct coupling in the information theory framework is transfer entropy. However, the core of entropy-based tools lies on the probability estimation of the underlying variables. Here we propose a data-driven approach for causality inference that incorporates recurrence plot features into the framework of information theory. We define it as the recurrence measure of conditional dependence (RMCD), and we present some applications. The RMCD quantifies the causal dependence between two processes based on joint recurrence patterns between the past of the possible driver and present of the potentially driven, excepting the contribution of the contemporaneous past of the driven variable. Finally, it can unveil the time scale of the influence of the sea-surface temperature of the Pacific Ocean on the precipitation in the Amazonia during recent major droughts.
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OBJECTIVE: To evaluate the efficacy and safety of OnabotulinumtoxinA treatment in the management of overactive bladder syndrome. MATERIALS AND METHODS: A systematic review of the literature and meta-analysis was performed including randomized controlled clinical trials that compared the use of OnabotulinumtoxinA with the use of placebo, antimuscarinic medication, or different doses of OnabotulinumtoxinA. Eleven studies met inclusion criteria and did not have any exclusion criteria. Primary outcome is improvement of urge incontinence, urinary frequency, and urinary urgency. Secondary outcomes are adverse events (urinary tract infection, urinary retention) and quality of life. Outcomes were evaluated after a 12-week follow-up period. Independent evaluation of the study's quality using the CONSORT (Consolidated Standards of Reporting Trials) tool was made. Analysis was performed in Review Manager 5.2. RESULTS: Compared with placebo, OnabotulinumtoxinA significantly decreased the number of episodes of urge incontinence. Urinary tract infection was more frequent in patients treated with OnabotulinumtoxinA than in patients treated with placebo. Frequency of urinary retention was not significantly different between patients treated with 100 IU OnabotulinumtoxinA dose and those treated with higher doses. Quality of life was assessed with different instruments in 3 of the studies; this implied a limitation because it was not possible to compare these data. CONCLUSION: Intravesical injections of OnabotulinumtoxinA compared with placebo showed a statistically significant improvement in the treatment of overactive bladder. Adverse events were more frequent among patients treated with OnabotulinumtoxinA. This meta-analysis takes into account only randomized placebo controlled trials.
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Inhibidores de la Liberación de Acetilcolina/uso terapéutico , Toxinas Botulínicas Tipo A/uso terapéutico , Vejiga Urinaria Hiperactiva/tratamiento farmacológico , Administración Intravesical , Humanos , Medición de Riesgo , Vejiga Urinaria Hiperactiva/complicacionesRESUMEN
Emboloterapia, embolización o embolización transcatéter son nombres que actualmente se le asignan al mismo procedimiento, conocido desde comienzos del siglo XX, que tomó fuerza y se difundió desde principios de 1970 cuando se impulsó su aplicación por medio de catéteres. Desde entonces, la evolución de las técnicas y el continuo desarrollo de materiales han convertido esta terapia en una herramienta de utilidad excepcional en el control de la hemorragia y el tratamiento de diferentes neoplasias.
Embolotherapy, embolization or transcatheter embolization are names that today are assigned for the same procedure, known since the early twentieth century and that took force spreading from the beginning of the 1970s when its application was promoted through catheters. Since then the evolution of techniques and the continuous development of materials have made this technique an exceptional tool in the control of hemorrhage and treatment of different neoplasms.
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Humanos , Embolización Terapéutica , Angiografía , CatéteresRESUMEN
Dens invaginatus is an anomaly of the tooth formation of embryonic origin that presents itself in several morphologic types. The complex anatomy of these teeth makes nonsurgical endodontic treatment complex and more so when its apex is immature. The 2 cases reported illustrate the nonsurgical endodontic management of a dens invaginatus type II and type III with an immature apex and periapical lesions, in which mineral trioxide aggregate (MTA) in one case, and calcium hydroxide in the other one, were the materials used. A 5-year follow-up of both cases shows a complete periapical healing with bone formation at the site of the lesions.
Asunto(s)
Dens in Dente/terapia , Tratamiento del Conducto Radicular/métodos , Adolescente , Compuestos de Aluminio/farmacología , Compuestos de Aluminio/uso terapéutico , Compuestos de Calcio/farmacología , Compuestos de Calcio/uso terapéutico , Hidróxido de Calcio/farmacología , Hidróxido de Calcio/uso terapéutico , Dens in Dente/clasificación , Necrosis de la Pulpa Dental/terapia , Combinación de Medicamentos , Estudios de Seguimiento , Humanos , Masculino , Óxidos/farmacología , Óxidos/uso terapéutico , Absceso Periapical/terapia , Irrigantes del Conducto Radicular/farmacología , Irrigantes del Conducto Radicular/uso terapéutico , Silicatos/farmacología , Silicatos/uso terapéutico , Ápice del Diente/efectos de los fármacosRESUMEN
Pulpitis, external root resorption, and pain may be experienced during orthodontic movement. The use of nonsteroidal anti-inflammatory drugs (NSAIDs) has been suggested to control these changes. The purpose of this study was to observe pulp-dentinal reactions, root resorption, tooth pain, and tooth movement after the application of a 4-ounce intrusive orthodontic force to human maxillary first premolars in patients given the NSAID nabumetone. Thirty-four maxillary first premolars were evaluated. A placebo was prescribed to 17 patients after an intrusive force was activated and reactivated for an 8-week period on the right side. The same procedure was repeated on the left side after patients were given nabumetone. Pulp-dentinal reactions and external root resorption were evaluated by histology. Pain and movement were also evaluated. Nabumetone was found to be useful in reducing pulpitis, external root resorption, and pain caused by intrusive orthodontic movement, without altering tooth movement in response to the application of orthodontic force.