Search | SciELO

ABSTRACT Hydroelectric plants broadly sustain Colombian electricity demand. However, wind power emerges to improve the Colombian energy matrix and capacity, satisfying the energy demand. Thus, this study evaluates the technical and economic feasibility of projects based on Small Wind Turbines (SWTs), based on the Colombian wind resource availability. Furthermore, due to the Colombian diversity of energy sources, sensitivity to climate changes and a high percentage of non-interconnected territory, the SWTs excels as an off-grid energy system alternative. For this purpose, the annual energy production and the capacity factor of 24 SWT and the wind resource in Puerto Bolívar, La Guajira, are considered. A techno-economic study that includes cash flow analysis and net present value is used to determine economic viability, considering a financing percentage sensitivity analysis. From the results, it can be concluded that an SWT based project increases its profitability by increasing the IRR value and lowering the financing percentage. Further, the best SWT models can be related to a higher capacity factor value based on the economic phase.

RESUMEN Las plantas hidroeléctricas sustentan la demanda de electricidad de Colombia. Sin embargo, la energía eólica surge para mejorar la matriz y capacidad energética colombiana, satisfaciendo la demanda energética. De esta manera, este estudio evalúa la factibilidad técnica y económica de proyectos basados en Turbinas Eólicas Pequeñas (SWT) considerando la disponibilidad del recurso eólico colombiano. Además, debido a la diversidad colombiana de fuentes de energía, la sensibilidad a los cambios climáticos y un alto porcentaje de territorio no interconectado, los SWT sobresalen como una alternativa de sistemas de energía fuera de la red. Para ello, se considera la producción de energía anual y el factor de capacidad de 24 SWT y el recurso eólico en Puerto Bolívar, La Guajira. Se implementa un estudio técnico-económico, que incluye el análisis de flujo de caja y valor actual neto para determinar la viabilidad económica, considerando el análisis de la sensibilidad porcentual de financiamiento. A partir de los resultados, se puede concluir que un proyecto basado en SWT aumenta su rentabilidad al aumentar el valor de la TIR y reducir el porcentaje de f mandamiento. Además, los mejores modelos SWT pueden relacionarse con un valor de factor de capacidad más alto en función de la fase económica.

https://doi.org/10.29047/01225383.400

Diversity matters: opportunities in the study of the genetics of psychotic disorders in low- and middle-income countries in Latin America
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Fonseca, Lais

; Sena, Brena F.

; Crossley, Nicolas

; Lopez-Jaramillo, Carlos

; Koenen, Karestan

; Freimer, Nelson B.

; Bressan, Rodrigo A.

; Belangero, Sintia I.

; Santoro, Marcos L.

; Gadelha, Ary

Brazilian Journal of Psychiatry

Journal Metrics
- Sobre o periódico
- SciELO Analytics

dec 2021, Volume 43 N. 6 Pages 631 - 637

Abstract: En | Text: En | PDF: En

Lack of diversity regarding genetic and environmental backgrounds weakens the generalization and clinical applicability of research findings on psychotic disorders. Notably, Latin Americans have been generally neglected in genetic studies, comprising less than 2% of genome-wide association study samples. But Latin American populations represent a unique opportunity for research, given the exceptionally high ethnic admixture of this group. Increasing genetic diversity is essential to improve the fine mapping of known regions associated with psychotic disorders, discover novel genetic associations, and replicate studies. Additionally, Latin America is characterized by massive social, political, and economic inequalities, all known risk factors for mental health issues, including psychotic disorders. This article aims to 1) discuss the challenges and advantages of studying Latin America’s particular genetic makeup and environmental context; 2) review previous studies conducted in the region; and 3) describe three Latin American research initiatives in progress: the Neuropsychiatric Genetics of Psychosis in Mexican Populations (NeuroMEX), the Paisa, and the Latin American Network for the Study of Early Psychosis (ANDES) studies.

https://doi.org/10.1590/1516-4446-2020-1240

Avifauna del interfluvio de la cuenca media Caquetá-Putumayo (Japurá-Içá), al sur de la Amazonia colombiana y su respuesta a la huella humana
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Acevedo-Charry, Orlando

; Peña-Alzate, Flor Ángela

; Beckers, Jurgen

; Cabezas, Mónica

; Coral-Jaramillo, Brayan

; Janni, Ottavio

; Ocampo, David

; Peñuela-Gomez, Sandra Milena

; Rocha-Lopez, Diego

; Socolar, Jacob B.

; Colón-Piñeiro, Zuania

Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales

Journal Metrics
- Sobre o periódico
- SciELO Analytics

mar 2021, Volume 45 N. 174 Pages 229 - 249

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Resumen La frontera sur de Colombia incluye extensos bosques amazónicos con diferentes grupos taxonómicos aún inexplorados. Presentamos una lista de especies de aves registradas entre los ríos Caquetá y Putumayo, o Japurá e Içá, a partir de la recopilación de datos históricos provenientes de especímenes biológicos y muestreos en campo realizados principalmente entre 2015 y 2020. Comparamos la diversidad taxonómica y funcional, así como el interés para el aviturista, en relación con un índice de huella humana que permite clasificar el grado de intervención antrópica. La lista incluye 531 especies distribuidas en 66 familias y 25 órdenes, siendo la familia Tyrannidae la de mayor riqueza. La diversidad taxonómica y el interés para el aviturista disminuyeron con el aumento del índice de huella humana, en tanto que la diversidad funcional no varió tan evidentemente con el grado de intervención humana. El refuerzo de estrategias de monitoreo participativo en las zonas rurales de Colombia puede contribuir al crecimiento económico local y tener alcances regionales de conservación que involucren áreas protegidas y otras zonas de importancia ecosistémica a la espera del establecimiento de programas de conservación participativos.

Abstract The southern border of Colombia includes extensive Amazon forests with many taxonomic groups still unexplored. We present a list of bird species recorded between the Caquetá and Putumayo rivers, or Japurá and Içá, based on a compilation of records of historical data on biological specimens and samplings done between 2015 and 2020. We compared taxonomic and functional diversity, as well as the interest for avitourism, based on a human footprint index that allows classifying the degree of human intervention. The list includes 531 species distributed in 66 families and 25 orders, where the Tyrannidae family had the greatest diversity. The taxonomic diversity and avitourism interest decreased as the human footprint index increased while the change in functional diversity was not so evident. Reinforcing participatory monitoring strategies in Colombian rural areas can support local economic growth with a regional conservation scope in protected areas or strategic ecosystems while participatory conservation programs are established.

https://doi.org/10.18257/raccefyn.1307 50 downloads

Prevalência de tejido mamario denso en una población de Bucaramanga, Colombia
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Baquero-Serrano, Alejandra

; Lopez-Martinez, Luis

; Vera-Campos, Silvia

; Rosales-Rueda, Sergio

; Jaramillo-Botero, Natalia

; Ochoa-Vera, Miguel

Revista Colombiana de Cancerología

Journal Metrics
- Sobre o periódico
- SciELO Analytics

sep 2020, Volume 24 N. 3 Pages 124 - 129

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Resumen Objetivo: Establecer la prevalencia de mujeres mayores de 50 años con mamas densas estudiadas por mamografía en el área de Bucaramanga. Métodos: Se realizó un estudio descriptivo retrospectivo durante el periodo comprendido entre enero de 2014 y agosto de 2015, en el que se revisaron 10.110 mamografías de pacientes mayores de 50 años. Posteriormente, se hizo una revisión de la literatura en las principales bases de datos. Resultados: De las 10.110 mamografías realizadas, 4.448 fueron encontradas como positivas para mama densa. De estas, el 39,69% correspondió a tejido mamario heterogéneamente denso y el 4,29%, a tejido mamario extremadamente denso, para un total de 43,9% de los casos estudiados. Conclusión: La densidad mamaria es un factor de riesgo independiente de cáncer de mama, considerado de mediana importancia frente a otros factores. A medida que incrementa la densidad mamaria, se genera la superposición del tejido mamario radio-opaco que puede ocultar y llegar a retardar el diagnóstico de un cáncer subyacente. Dada la alta prevalencia de tejido mamario denso encontrado en la población estudiada, se sugiere complementar el tamizaje con otros métodos de imágenes.

Abstract Objective: To establish the prevalence of dense breast tissue in a group of women aged over 50 years, who were studied with mammography in the city of Bucaramanga (Colombia). Methods: A retrospective descriptive study was conducted from January 2014 to August 2015; 10.110 mammograms of patients aged over 50 years were reviewed. Subsequently, a review of the literature in the main databases was made. Results: From 10.110 mammograms that were performed, 4.448 were found to be positive for dense breast tissue. 39,69% had heterogeneously dense breast tissue, and 4,29% extremely dense breast tissue, for a total result of 43,9% patients with positive dense breast tissue. Conclusion: Breast density is an independent risk factor for breast cancer, being of medium importance compared with other factors. As the breast density increases, the overlap of the radiopaque breast tissue that can hide and delay the diagnosis of an underlying cancer is generated. The high prevalence of dense breast tissue that we found in this population suggests the need of complementing screening with other imaging methods.

https://doi.org/10.35509/01239015.94 351 downloads

Linfohistiocitosis hemofagocítica por Histoplasma capsulatum en paciente con trasplante renal
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Camargo-Salamanca, Alejandro

; Patino-Jaramillo, Nasly Gisell

; Lopez-Prieto, Liliana

; Garcia-Lopez, Andrea Elena

; Giron-Luque, Fernando

Infectio

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jun 2020, Volume 24 N. 2 Pages 126 - 128

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Resumen La linfohistiocitosis hemofagocítica (LHH) por Histoplasma capsulatum, presentación rara de la histoplasmosis diseminada, es causada por la fagocitosis de las células hematopoyéticas por macrófagos tisulares. Presentamos el caso de un paciente masculino de 44 años con trasplante renal que asiste por fiebre sin otra sintomatología. Inicialmente se obtiene una gota gruesa positiva para P. vivax, iniciando manejo antimalárico. A los 2 días de tratamiento, el paciente presenta disfunción multiórganica, se rectifica diagnóstico en centro de referencia reportando en extendido de sangre periférica la presencia de levaduras de H. capsulatum en polimorfonucleares, resultado confirmado con prueba de inmunodifusión. Se ajusta manejo, pero el paciente fallece. El diagnóstico de infecciones por gérmenes inusuales con presentaciones inespecíficas es un reto en pacientes con inmunosupresión.

Abstract Hemophagocytic Lymphohistiocytosis (HLH) induced by Histoplasma capsulatum is a rare entity who is characterized by phagocytosis of hematopoietic cells by tissue macrophages. A 44-year-old male patient with kidney transplantation was admitted to our ambulatory service with fever. Initially, we performed a thick drop test who was positive for P. vivax, so antimalarial therapy was initiated. Patient then progressed to multiple organ dysfunction after 2 days of treatment. Thus, a reference center went back over the blood smear which revealed the presence of yeast cells H. capsulatum within polymorphonuclear cells. This result was confirmed by an immunodifussion assay. Despite of antifungal treatment, patient passed away. The diagnosis for unusual microorganism with unspecific clinical presentation could be a challenge in immunosupressive patients.

https://doi.org/10.22354/in.v24i2.844 238 downloads

Declaración de posición del Grupo de la Comisión Lancet de Hipertensión con respecto a la mejora mundial de las normas de exactitud para los dispositivos de medición de la presión arterial
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Sharman, James E.

; O’Brien, Eoin

; Alpert, Bruce

; Schutte, Aletta E.

; Delles, Christian

; Olsen, Michael Hecht

; Asmar, Roland

; Atkins, Neil

; Barbosa, Eduardo

; Calhoun, David

; Campbell, Norm R.C.

; Chalmers, John

; Benjamin, Ivor

; Jennings, Garry

; Laurent, Stéphane

; Boutouyrie, Pierre

; Lopez-Jaramillo, Patricio

; McManus, Richard J.

; Mihailidou, Anastasia S.

; Ordunez, Pedro

; Padwal, Raj

; Palatini, Paolo

; Parati, Gianfranco

; Poulter, Neil

; Rakotz, Michael K.

; Rosendorff, Clive

; Saladini, Francesca

; Scuteri, Angelo

; Barroso, Weimar Sebba

; Cho, Myeong-Chan

; Sung, Ki-Chul

; Townsend, Raymond R.

; Wang, Ji-Guang

; Hansen, Tine Willum

; Wozniak, Gregory

; Stergiou, George

Revista Panamericana de Salud Pública

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2020, Volume 44 elocation e21

Abstract: En Es Pt | Text: En Es Pt | PDF: En | PDF: Es | PDF: Pt

ABSTRACT The Lancet Commission on Hypertension identified that a key action to address the worldwide burden of high blood pressure (BP) was to improve the quality of BP measurements by using BP devices that have been validated for accuracy. Currently, there are over 3 000 commercially available BP devices, but many do not have published data on accuracy testing according to established scientific standards. This problem is enabled through weak or absent regulations that allow clearance of devices for commercial use without formal validation. In addition, new BP technologies have emerged (e.g. cuffless sensors) for which there is no scientific consensus regarding BP measurement accuracy standards. Altogether, these issues contribute to the widespread availability of clinic and home BP devices with limited or uncertain accuracy, leading to inappropriate hypertension diagnosis, management and drug treatment on a global scale. The most significant problems relating to the accuracy of BP devices can be resolved by the regulatory requirement for mandatory independent validation of BP devices according to the universally-accepted International Organization for Standardization Standard. This is a primary recommendation for which there is an urgent international need. Other key recommendations are development of validation standards specifically for new BP technologies and online lists of accurate devices that are accessible to consumers and health professionals. Recommendations are aligned with WHO policies on medical devices and universal healthcare. Adherence to recommendations would increase the global availability of accurate BP devices and result in better diagnosis and treatment of hypertension, thus decreasing the worldwide burden from high BP.

resumen está disponible en el texto completo

RESUMO A Comissão Lancet sobre Hipertensão Arterial identificou que uma iniciativa central para enfrentar a carga mundial da hipertensão arterial seria a melhoria na qualidade da mensuração da pressão arterial pelo uso aparelhos de pressão arterial validados quanto à acurácia. Atualmente, existem mais de 3 000 aparelhos de pressão arterial disponíveis comercialmente; entretanto, muitos não têm dados publicados sobre testes de acurácia realizados de acordo com padrões científicos estabelecidos. Este problema resulta de regulamentação fraca ou inexistente, o que permite a aprovação para uso comercial de dispositivos sem validação formal. Além disso, surgiram novas tecnologias de mensuração da pressão arterial (por exemplo, sensores sem algemas) sem consenso científico quanto aos padrões de acurácia. No conjunto, essas questões contribuem para a oferta generalizada de dispositivos de pressão arterial clínica e domiciliar com acurácia limitada ou incerta, levando a diagnóstico, gerenciamento e tratamento inadequados da hipertensão em escala global. Os problemas mais significativos relacionados com a acurácia dos dispositivos de pressão arterial podem ser resolvidos por regulamentação que imponha a obrigatoriedade de validação independente dos aparelhos de pressão arterial, de acordo com a norma universalmente aceita pela Organização Internacional de Normalização. Esta é uma recomendação fundamental para a qual existe uma necessidade internacional urgente. Outras recomendações essenciais incluem o desenvolvimento de padrões de validação especificamente para novas tecnologias de mensuração da pressão arterial e listas on-line de aparelhos com acurácia adequada que sejam acessíveis aos consumidores e profissionais de saúde. As recomendações estão alinhadas com as políticas da Organização Mundial da Saúde (OMS) sobre dispositivos médicos e atenção universal à saúde. A adesão às recomendações aumentaria a oferta global de dispositivos de pressão arterial com acurácia adequada e resultaria em melhor diagnóstico e tratamento da hipertensão arterial, diminuindo assim a carga mundial dessa doença.

https://doi.org/10.26633/rpsp.2020.21

Manejo interprofesoral de las enfermedades cardiovasculares
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Lopez-Jaramillo, Patricio

; Rueda-García, Diana

Revista Cuidarte

Journal Metrics
- Sobre o periódico
- SciELO Analytics

aug 2019, Volume 10 N. 2 elocation e756

Abstract: Es En Pt | Text: Es En Pt | PDF: Es | PDF: En | PDF: Pt

https://doi.org/10.15649/cuidarte.v10i2.756 454 downloads

Manejo interprofesoral de las enfermedades cardiovasculares
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Lopez-Jaramillo, Patricio

; Rueda-García, Diana

Revista Cuidarte

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2019, Volume 10 N. 2 elocation e756

Abstract: Es | Text: Es | PDF: Es

https://doi.org/10.15649/cuidarte.v10i2.756 7 downloads

PRODUCTIVE PERFORMANCE OF WHITE LEGHORN HENS BASED ON THE TYPE OF HOUSING DURING REARING: FLOOR VERSUS CAGE
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Itza-Ortiz, MF

; Peraza-Mercado, G

; Castillo-Castillo, Y

; Rodriguez-Alarcon, CA

; Vital-Garcia, C

; Jaramillo-Lopez, E

; Carrera-Chavez, JM

Brazilian Journal of Poultry Science

Journal Metrics
- Sobre o periódico
- SciELO Analytics

sep 2016, Volume 18 N. 3 Pages 543 - 548

Abstract: En | Text: En | PDF: En

ABSTRACT Poultry farmers in the southeastern of Mexico consider that the productivity of the hens that comes from rearing on floor has a higher productive performance than reared hens in cages, mainly due to higher percentage of egg laying and lower mortality. The aim of this study was to evaluate the productive performance of the laying hen in relation to the type of rearing. A total of 79680 pullets Bovans White of 17 weeks of age were housed in cages with five pullets cage-1 (405 cm2pullet-1). They were divided in two treatments according to their type of rearing (floor vs cage) with four replicates. The study period was from week 20 to week 40 of age. The variables evaluated were daily (%) and cumulative mortality (%), egg production (%), egg weight (g), feed intake (g pullet d-1), cumulative feed intake (g pullet-1), daily and cumulative egg mass, number of eggs per hen housed, egg loss (%) and productivity index. The variables were analyzed using a randomized block design. It was observed that daily and cumulative mortality, feed intake and egg loss was higher (p< 0.05), while the number of eggs per hen housed and productivity index (p< 0.05) was lower for hens in cages. We conclude that it is possible to associate detriments in the productive performance of laying hens based on the type of housing during its growth phase.

https://doi.org/10.1590/1806-9061-2015-0139 3724 downloads

10.

The environmental profile of a community's health: a cross-sectional study on tobacco marketing in 16 countries
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Savell, Emily

; Gilmore, Anna B

; Sims, Michelle

; Mony, Prem K

; Koon, Teo

; Yusoff, Khalid

; Lear, Scott A

; Seron, Pamela

; Ismail, Noorhassim

; Calik, K Burcu Tumerdem

; Rosengren, Annika

; Bahonar, Ahmad

; Kumar, Rajesh

; Vijayakumar, Krishnapillai

; Kruger, Annamarie

; Swidan, Hany

; Gupta, Rajeev

; Igumbor, Ehimario

; Afridi, Asad

; Rahman, Omar

; Chifamba, Jephat

; Zatonska, Katarzyna

; Mohan, V

; Mohan, Deepa

; Lopez-Jaramillo, Patricio

; Avezum, Alvaro

; Poirier, Paul

; Orlandini, Andres

; Li, Wei

; McKee, Martin

; Rangarajan, Sumathy

; Yusuf, Salim

; Chow, Clara K

Bulletin of the World Health Organization

Journal Metrics
- Sobre o periódico
- SciELO Analytics

dec 2015, Volume 93 N. 12 Pages 851 - 861

抽象是在全文可

абстрактный доступен в Полный текст

résumé est disponible dans le document

Abstract Objective To examine and compare tobacco marketing in 16 countries while the Framework Convention on Tobacco Control requires parties to implement a comprehensive ban on such marketing. Methods Between 2009 and 2012, a kilometre-long walk was completed by trained investigators in 462 communities across 16 countries to collect data on tobacco marketing. We interviewed community members about their exposure to traditional and non-traditional marketing in the previous six months. To examine differences in marketing between urban and rural communities and between high-, middle- and low-income countries, we used multilevel regression models controlling for potential confounders. Findings Compared with high-income countries, the number of tobacco advertisements observed was 81 times higher in low-income countries (incidence rate ratio, IRR: 80.98; 95% confidence interval, CI: 4.15-1578.42) and the number of tobacco outlets was 2.5 times higher in both low- and lower-middle-income countries (IRR: 2.58; 95% CI: 1.17-5.67 and IRR: 2.52; CI: 1.23-5.17, respectively). Of the 11 842 interviewees, 1184 (10%) reported seeing at least five types of tobacco marketing. Self-reported exposure to at least one type of traditional marketing was 10 times higher in low-income countries than in high-income countries (odds ratio, OR: 9.77; 95% CI: 1.24-76.77). For almost all measures, marketing exposure was significantly lower in the rural communities than in the urban communities. Conclusion Despite global legislation to limit tobacco marketing, it appears ubiquitous. The frequency and type of tobacco marketing varies on the national level by income group and by community type, appearing to be greatest in low-income countries and urban communities.

resumen está disponible en el texto completo

https://doi.org/10.2471/BLT.15.155846 2140 downloads

11.

Utilidad del citoquímico y la coloración de Gram en muestras de orina en el diagnóstico de las infecciones del tracto urinario en pacientes hospitalizados.
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics

Lopez Vargas, Jaime Alberto

; Cuartas Trujillo, Monica Cecilia

; Molina Upegui, Olga Lucia

; Restrepo Ceballos, Ana Cristina

; Maya Carmona, Claudia Yarely

; Jaramillo Velásquez, Sergio

; Donado Gómez, Jorge Hernando

Iatreia

Journal Metrics
- Sobre o periódico
- SciELO Analytics

dec 2005, Volume 18 N. 4 Pages 377 - 384

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

OBJETIVO: evaluar la utilidad del citoquímico de orina y la coloración de Gram en el diagnóstico de la infección del tracto urinario en pacientes hospitalizados. DISEÑO Y MUESTRA: estudio de corte transversal; 10.917 urocultivos. MÉTODOS: se hicieron el citoquímico de orina y la coloración de Gram de la orina sin centrifugar según la solicitud de los médicos tratantes. Cuando no se solicitó este último examen, la coloración de Gram se hizo del sedimento urinario. Se compararon los resultados obtenidos con el resultado del urocultivo. Resultados: se obtuvo el resultado del citoquímico de orina en 6.762 de las muestras. Se solicitaron 2.762 coloraciones de Gram de orina sin centrifugar, y en 8.008 orinas se hizo la coloración de Gram del sedimento urinario. En comparación con el urocultivo, el citoquímico de orina presentó sensibilidad del 99%, especificidad del 51%, valor predictivo positivo del 60%, y valor predictivo negativo del 98%. La coloración de Gram de la orina sin centrifugar tuvo sensibilidad, especificidad y valores predictivos positivo y negativo de 98%, 73%, 82% y 97%, respectivamente. Para la coloración de Gram del sedimento urinario los valores correspondientes a la sensibilidad, especificidad y valores predictivos positivo y negativo fueron 95%, 78%, 67%, y 97%. CONCLUSIONES: el citoquímico de orina, bajo los criterios propuestos, y la coloración de Gram tienen un alto valor predictivo negativo, que permitiría utilizarlos como pruebas de tamización para determinar la necesidad de solicitar el urocultivo.

OBJECTIVE: To evaluate the usefulness of urinalysis and of urine Gram stain in the diagnosis of urinary tract infection in hospitalized patients. DESIGN AND SAMPLE: Urinalysis and Gram stain of non centrifuged urine were carried out according to the requests of physicians, in specimens submitted to the laboratory for urine culture. When this modality of Gram stain had not been requested, it was done with urine sediment. Results were compared with those of the culture. RESULTS: Ten thousand nine hundred and seventeen urine cultures were carried out, as well as 6.762 urinalyses, 2.762 Gram stains of non centrifuged urine, and 8.008 Gram stains of urine sediments. In comparison with the urine culture, urinalyses had 99% sensitivity, 51% specificity, 60% positive predictive value, and 98% negative predictive value. Gram stain of non centrifuged urine had 98% sensitivity, 73% specificity, 82% positive predictive value, and 97% negative predictive value. Gram stain of urine sediment had 95% sensitivity, 78% specificity, 67% positive predictive value, and 97% negative predictive value. CONCLUSIONS: Urinalysis, following well defined criteria, and Gram stain have high negative predictive values, that may allow to use them as screening tests to determine the need to request urine culture.

10331 downloads

Showing

itens per page

Page of 1 Next

Select one or more results

All Alphabetic

Results

Comparative chart Download CSV

Statistics of

Send result

To*

Use ; (semicolon) to insert more emails.

Send to email

This page

Selected records

All references (max. 300)

Your email

Subject

Comments

Export format:

RIS (for EndNote, ProCite, Reference Manager, RefWorks, Citavi, etc.)

BibTeX

Citation

CSV (for Excel, etc)

Export:

This page

Selected itens

All references (max. 2000)

Sem resultados

No documents were found for your search

Glossary and search help

You can enrich your search in a very simple way. Use the search indexes combined with the connectors (AND or OR) and specify more your search.

For example, if you want to search for articles about
cases of dengue in Brasil in 2015, use:
ti:dengue and publication_year:2015 and aff_country:Brasil

See below the complete list of search indexes that can be used:

Index code	Element
ti	article title
au	author
kw	article keywords
subject	subject (title words, abstract and keywords)
ab	abstract
ta	journal short title (e.g. Cad. Saúde Pública)
journal_title	journal full title (e.g. Cadernos de Saúde Pública)
la	publication language code (e.g. pt - Portuguese, es - Spanish)
type	document type
pid	publication identifier
publication_year	publication year of publication
sponsor	sponsor
aff_country	country code of the author's affiliation
aff_institution	author affiliation institution
volume	article volume
issue	article issue
elocation	elocation
doi	DOI number
issn	journal ISSN
in	SciELO colection code (e.g. scl - Brasil, col - Colômbia)
use_license	article usage license code

SciELO - Scientific Electronic Library Online
Rua Dr. Diogo de Faria, 1087 – 9º andar – Vila Clementino 04037-003 São Paulo/SP - Brasil
Email: scielo@scielo.org

All the contents of this site www.scielo.br, except where otherwise noted, is licensed under a Creative Commons Attribution License.
more »