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1.
Braz J Biol ; 83: e270737, 2023.
Article in English | MEDLINE | ID: mdl-37255199

ABSTRACT

Researchers have been utilizing matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) to identify bacteria and fungi directly from isolates obtained on culture plates; the resulting mass spectrum is then compared with spectra stored in the instrument software. Hence, a fast analytical response is obtained, and the more spectra are known to compare, the safer and more reliable the interpretation of the method will be. Thus, this study sought to identify the diversity of strains found in 10 samples of artisan cheese produced and commercialized in Vale do Taquari (Rio Grande do Sul State, Brazil) using MALDI-TOF MS. From the analyzed cheese, 22 strains were identified at the species level; one sample presented the pathogen Staphylococcus aureus, two showed the presence of lactic acid bacteria (Lactococcus lactis), and the vast majority (68.18%) of strains were composed of species of the Enterobacteriaceae family, with the prevalence of the genera Escherichia, Enterobacter, and Klebsiella. Escherichia coli was present in 50% of the samples analyzed. This demonstrates the need for greater control during all stages of artisanal cheese production and evaluation of the raw material, including safe practices during milking, so that the product meets the identity and quality parameters suitable for human consumption.


Subject(s)
Cheese , Staphylococcal Infections , Humans , Cheese/microbiology , Brazil , Bacteria , Staphylococcus aureus , Escherichia coli
2.
Braz. j. biol ; 83: e270737, 2023. tab
Article in English | VETINDEX | ID: biblio-1439652

ABSTRACT

Researchers have been utilizing matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) to identify bacteria and fungi directly from isolates obtained on culture plates; the resulting mass spectrum is then compared with spectra stored in the instrument software. Hence, a fast analytical response is obtained, and the more spectra are known to compare, the safer and more reliable the interpretation of the method will be. Thus, this study sought to identify the diversity of strains found in 10 samples of artisan cheese produced and commercialized in Vale do Taquari (Rio Grande do Sul State, Brazil) using MALDI-TOF MS. From the analyzed cheese, 22 strains were identified at the species level; one sample presented the pathogen Staphylococcus aureus, two showed the presence of lactic acid bacteria (Lactococcus lactis), and the vast majority (68.18%) of strains were composed of species of the Enterobacteriaceae family, with the prevalence of the genera Escherichia, Enterobacter, and Klebsiella. Escherichia coli was present in 50% of the samples analyzed. This demonstrates the need for greater control during all stages of artisanal cheese production and evaluation of the raw material, including safe practices during milking, so that the product meets the identity and quality parameters suitable for human consumption.


MALDI-TOF MS vendo sendo utilizado em laboratórios para identificar bactérias e fungos diretamente de isolados obtidos em placas de cultura. O espectro de massa resultante é então comparado com espectros armazenados no software do equipamento. Assim, obtém-se uma resposta analítica rápida, sendo que, quanto mais espectros forem conhecidos para comparar, mais seguro e confiável será a interpretação do método. Desta maneira, o presente trabalho teve por objetivo, identificar por MALDI-TOF MS, a diversidade de cepas encontrados em 10 amostras de queijos artesanais produzidos e comercializados no Vale do Taquari, Rio Grande do Sul, Brasil. Dos queijos analisados, 22 cepas foram identificadas a nível de espécie, sendo uma (1) amostra apresentou o patógeno Staphylococcus aureus, duas a presença da bactéria ácido láctica (Lactococcus lactis) e a grande maioria (68,18%) das cepas era composta por espécies da família Enterobacteriaceae, com prevalência dos gêneros Escherichia, Enterobacter e Klebsiella. E. coli estava presente em 50% das amostras analisadas. Isso demonstra a necessidade de um maior controle durante todas as etapas de produção do queijo artesanal, bem como a avaliação da matéria-prima, incluindo práticas seguras durante a ordenha para que o produto atenda aos parâmetros de identidade e qualidade, sendo apto ao consumo humano.


Subject(s)
Cheese/microbiology , Identity and Quality Standard for Products and Services , Microbiota
3.
Food Res Int ; 100(Pt 2): 227-234, 2017 10.
Article in English | MEDLINE | ID: mdl-28888445

ABSTRACT

Edible flowers have gained more attention in recent years thanks to their perceived health benefits. Despite this attention, it seems that edible flowers are not popularized for consumption in South America, being considered unfamiliar for some cultures from this continent. In this context, the general goal of the present study was to investigate the three dimensions of social representation theory, the representational field, the information and the attitude of the two conditions of edible flowers: a more general "food made with flowers" and more directional product "yoghurt made with flowers", using Brazilian consumers. To achieve this goal, a free word association task was applied. A total of 549 consumers participated in this study. Participants were divided into two conditions, in which the inductor expressions for the free word association task changed: (a) food products made with flowers and (b) yoghurt made with flowers. Results showed a very positive attitude to both situations, and consumers associated Food products made with flowers to "health care" while the central core of yoghurt made with flowers reflected the innovative condition of this product, supported here by their unpredictable character (information generated).


Subject(s)
Choice Behavior , Consumer Behavior , Flowers , Food Preferences , Plants, Edible , Adult , Brazil , Female , Health Knowledge, Attitudes, Practice , Humans , Male , Middle Aged , Motivation , Young Adult
4.
Arq. bras. med. vet. zootec ; 65(3): 826-832, jun. 2013. graf, tab
Article in Portuguese | VETINDEX | ID: vti-9670

ABSTRACT

Avaliou-se o efeito da suplementação com óleo de linhaça na dieta, com ou sem injeção de selenito de sódio, sobre o perfil de ácidos graxos e sobre a estabilidade oxidativa do leite de vacas leiteiras. Catorze vacas foram distribuídas em três tratamentos: as do grupo 1, que receberam diariamente 400mL de óleo de linhaça (LIN); as do grupo 2, 400mL de óleo de linhaça + 0,2mg/kg de selenito de sódio IM (LINSe); e as do grupo 3 (controle), que não foram tratadas (C). O óleo foi fornecido diariamente após 15 dias da aplicação única de selenito de sódio, e o experimento teve duração de quatro semanas. Os animais suplementados com o óleo de linhaça produziram leite com altas porcentagens de ácido linoleico conjugado (CLA) e de ômega 3, contudo mais suscetível à oxidação. A aplicação injetável de selenito de sódio mostrou-se eficaz ao impedir a oxidação prematura do leite. Concluiu-se que a inclusão do óleo de linhaça na dieta de vacas leiteiras resulta em aumento do CLA, do ômega 3 e, consequentemente, da oxidação do leite, necessitando, assim do uso de substâncias antioxidantes ou promotores antioxidantes, como o selenito de sódio injetável.(AU)


The aim of the present study was to evaluate the effect of dietary linseed oil supplementation with or without injectable sodium selenite on the fatty acid profile and oxidative stability of milk from dairy cows. Fourteen cows were allocated into four treatment groups: Group 1 which received 400mL of linseed oil daily (LIN); Group 2, 400mL of linseed oil + 0,2mg/BW sodium selenite IM (LINSe); Group 3, untreated controls (C). The oil was supplied daily after 15 days of a single application of sodium selenite and during 4 weeks. Animals supplemented with linseed oil produced milk with higher levels of conjugated linoleic acid (CLA) and omega 3, but were also more susceptible to oxidation. The application of sodium selenite was effective to prevent premature oxidation of milk. We concluded that the supplementation of a cow's diet with linseed oil promoted increased CLA and omega 3 in milk, which in turn becomes more susceptible to oxidation, requiring the use of antioxidants or promoters of antioxidant activity such as injectable sodium selenite.(AU)


Subject(s)
Animals , Cattle , Diet/methods , Linseed Oil/analysis , Milk , Fatty Acids , Cattle/classification
5.
Arq. bras. med. vet. zootec ; Arq. bras. med. vet. zootec. (Online);65(3): 826-832, June 2013. graf, tab
Article in Portuguese | LILACS | ID: lil-679119

ABSTRACT

Avaliou-se o efeito da suplementação com óleo de linhaça na dieta, com ou sem injeção de selenito de sódio, sobre o perfil de ácidos graxos e sobre a estabilidade oxidativa do leite de vacas leiteiras. Catorze vacas foram distribuídas em três tratamentos: as do grupo 1, que receberam diariamente 400mL de óleo de linhaça (LIN); as do grupo 2, 400mL de óleo de linhaça + 0,2mg/kg de selenito de sódio IM (LINSe); e as do grupo 3 (controle), que não foram tratadas (C). O óleo foi fornecido diariamente após 15 dias da aplicação única de selenito de sódio, e o experimento teve duração de quatro semanas. Os animais suplementados com o óleo de linhaça produziram leite com altas porcentagens de ácido linoleico conjugado (CLA) e de ômega 3, contudo mais suscetível à oxidação. A aplicação injetável de selenito de sódio mostrou-se eficaz ao impedir a oxidação prematura do leite. Concluiu-se que a inclusão do óleo de linhaça na dieta de vacas leiteiras resulta em aumento do CLA, do ômega 3 e, consequentemente, da oxidação do leite, necessitando, assim do uso de substâncias antioxidantes ou promotores antioxidantes, como o selenito de sódio injetável.


The aim of the present study was to evaluate the effect of dietary linseed oil supplementation with or without injectable sodium selenite on the fatty acid profile and oxidative stability of milk from dairy cows. Fourteen cows were allocated into four treatment groups: Group 1 which received 400mL of linseed oil daily (LIN); Group 2, 400mL of linseed oil + 0,2mg/BW sodium selenite IM (LINSe); Group 3, untreated controls (C). The oil was supplied daily after 15 days of a single application of sodium selenite and during 4 weeks. Animals supplemented with linseed oil produced milk with higher levels of conjugated linoleic acid (CLA) and omega 3, but were also more susceptible to oxidation. The application of sodium selenite was effective to prevent premature oxidation of milk. We concluded that the supplementation of a cow's diet with linseed oil promoted increased CLA and omega 3 in milk, which in turn becomes more susceptible to oxidation, requiring the use of antioxidants or promoters of antioxidant activity such as injectable sodium selenite.


Subject(s)
Animals , Cattle , Diet/methods , Fatty Acids , Milk , Linseed Oil/analysis , Cattle/classification
6.
Ci. Tecnol. Prod. Orig. Anim. ; 1(1): 27-33, 2008.
Article in English | VETINDEX | ID: vti-12017

ABSTRACT

O requeijão cremoso teve um aumento significativo da sua produção nos últimos anos, e tornou-se um produto de destaque nos hábitos alimentares dos consumidores. Concomitantemente a este aumento na produção, cresceu o uso de proteínas do soro como ingrediente em alimentos lácteos e não lácteos, sendo uma alternativa menos onerosa às indústrias. O objetivo deste trabalho foi desenvolver 12 formulações de requeijão utilizando soro de queijo, caseinato de cálcio e sal fundente e avaliar suas características físico-químicas. Também foram avaliados os atributos sensoriais: odor, cor, textura, qualidade global, aroma e sabor. Os resultados observados mostraram que as características físico-químicas das formulações foram semelhantes às da amostra comercial e adequadas segundo a legislação, indicando que é possível a fabricação de requeijão utilizando soro de queijo como base. A utilização do caseinato de cálcio ajudou na manutenção das propriedades físico-químicas do produto. As formulações utilizando soro de leite apresentaram boa aceitação. Os resultados confirmam as vantagens nutricionais que podem ser oferecidas ao consumidor quando se utiliza um subproduto da indústria láctea, gerando um produto de alto valor agregado e interessante nutricionalmente.(AU)


The cream cheese had a significant increase of its production in last ten years, and became a product of prominence in the alimentary habits of the consumers. Concomitantly to increase the production, the use of the serum protein also grew as ingredient in milky and not milky foods, being a less onerous alternative to the industries. The objective of this work was to develop twelve cream cheese formularizations using cheese serum, calcium caseinato and melting salt, to evaluate its physical-chemical characteristics and to compare them it the current law and with a commercial product. Also the sensorial attributes had been evaluated: odour, color, texture, global quality, aroma and flavor. The observed results had shown that the physical-chemical characteristics of the formularizations had been similar to the ones of the commercial sample and adjusted according to legislation, indicating that the cream cheese manufacture is possible using cheese serum as base. The use of the calcium caseinato influence the maintenance of the physical-chemical properties of the product. The formularizations using milk serum had presented good acceptance in relation to the commercial mark. The results confirm the nutricional advantages that can be offered the consumer when a by-product of the milked industry is used, generating a product of high aggregate and interesting nutricional value.(AU)


Subject(s)
Animals , Calcium/analysis , Salts/analysis , Dairy Products/analysis
7.
Article in Portuguese | VETINDEX | ID: vti-12014

ABSTRACT

As bebidas achocolatadas têm adquirido espaço no mercado consumidor, por se tratar de um lanche rápido, atendendo a pessoas de todas as idades, principalmente, devido a suas características sensoriais e nutricionais. Dentre os atributos sensoriais, dois estão relacionados ao consumo destes produtos: sabor e cor. Este trabalho teve por objetivo analisar a cor objetiva e subjetiva, além da preferência de 17 amostras de bebidas achocolatadas comercializadas em Santa Maria, RS. A cor objetiva foi determinada em colorímetro Minolta, pelo sistema CIEL*a*b*, e a subjetiva, por inspeção visual através do teste de preferência. A análise sensorial foi realizada conforme o teste de ordenação descrito pela ABNT, classificando as amostras em ordem decrescente em relação à preferência dos provadores. De maneira geral, os resultados encontrados para os parâmetros de cor objetiva (L*, a* e b*) mostraram que as bebidas achocolatadas tendem à cor escura, o mesmo foi observado na análise subjetiva de cor. Os resultados do teste de ordenação indicaram que a amostra preferida foi a n° 12, sendo também confirmada como a amostra de melhor cor subjetiva.(AU)


Chocolate based beverages are occupying a constantly growing space in the consumer market, due to the fact that it is considered a fast snack, satisfying people of all ages, mainly because of its sensorial and nutritional characteristics. Amongst the sensorial attributes, two are related to the consumption of these products: flavor and color. The objective of this work was to analyze both the objective and subjective color, as well as the preference, of 17 samples of chocolate based beverages commercialized in Santa Maria, RS. The objective color was determined with the use of a Minolta colorimeter, using the CIEL* a*b* system, and the subjective one was carried out by visual inspection using a preference test. The sensorial analysis was carried out using an ordinance test as described by ABNT, classifying the samples in decreasing order of preference of the sensorial testers. In general, the results obtained for the colour parameters (L*, a* and b*) showed that the chocolate based beverages tend to a dark color, which was the same result obtained in the subjective colour analysis. The results of the ordinance test show that sample number 12 was the most accepted one and was also confirmed as the sample with the best subjective colour.(AU)


Subject(s)
Animals , Beverages/analysis , Cacao , Dairy Products
8.
Article in Portuguese | VETINDEX | ID: biblio-1472716

ABSTRACT

As bebidas achocolatadas têm adquirido espaço no mercado consumidor, por se tratar de um lanche rápido, atendendo a pessoas de todas as idades, principalmente, devido a suas características sensoriais e nutricionais. Dentre os atributos sensoriais, dois estão relacionados ao consumo destes produtos: sabor e cor. Este trabalho teve por objetivo analisar a cor objetiva e subjetiva, além da preferência de 17 amostras de bebidas achocolatadas comercializadas em Santa Maria, RS. A cor objetiva foi determinada em colorímetro Minolta, pelo sistema CIEL*a*b*, e a subjetiva, por inspeção visual através do teste de preferência. A análise sensorial foi realizada conforme o teste de ordenação descrito pela ABNT, classificando as amostras em ordem decrescente em relação à preferência dos provadores. De maneira geral, os resultados encontrados para os parâmetros de cor objetiva (L*, a* e b*) mostraram que as bebidas achocolatadas tendem à cor escura, o mesmo foi observado na análise subjetiva de cor. Os resultados do teste de ordenação indicaram que a amostra preferida foi a n° 12, sendo também confirmada como a amostra de melhor cor subjetiva.


Chocolate based beverages are occupying a constantly growing space in the consumer market, due to the fact that it is considered a fast snack, satisfying people of all ages, mainly because of its sensorial and nutritional characteristics. Amongst the sensorial attributes, two are related to the consumption of these products: flavor and color. The objective of this work was to analyze both the objective and subjective color, as well as the preference, of 17 samples of chocolate based beverages commercialized in Santa Maria, RS. The objective color was determined with the use of a Minolta colorimeter, using the CIEL* a*b* system, and the subjective one was carried out by visual inspection using a preference test. The sensorial analysis was carried out using an ordinance test as described by ABNT, classifying the samples in decreasing order of preference of the sensorial testers. In general, the results obtained for the colour parameters (L*, a* and b*) showed that the chocolate based beverages tend to a dark color, which was the same result obtained in the subjective colour analysis. The results of the ordinance test show that sample number 12 was the most accepted one and was also confirmed as the sample with the best subjective colour.


Subject(s)
Animals , Beverages/analysis , Cacao , Dairy Products
9.
Article in English | VETINDEX | ID: biblio-1472719

ABSTRACT

O requeijão cremoso teve um aumento significativo da sua produção nos últimos anos, e tornou-se um produto de destaque nos hábitos alimentares dos consumidores. Concomitantemente a este aumento na produção, cresceu o uso de proteínas do soro como ingrediente em alimentos lácteos e não lácteos, sendo uma alternativa menos onerosa às indústrias. O objetivo deste trabalho foi desenvolver 12 formulações de requeijão utilizando soro de queijo, caseinato de cálcio e sal fundente e avaliar suas características físico-químicas. Também foram avaliados os atributos sensoriais: odor, cor, textura, qualidade global, aroma e sabor. Os resultados observados mostraram que as características físico-químicas das formulações foram semelhantes às da amostra comercial e adequadas segundo a legislação, indicando que é possível a fabricação de requeijão utilizando soro de queijo como base. A utilização do caseinato de cálcio ajudou na manutenção das propriedades físico-químicas do produto. As formulações utilizando soro de leite apresentaram boa aceitação. Os resultados confirmam as vantagens nutricionais que podem ser oferecidas ao consumidor quando se utiliza um subproduto da indústria láctea, gerando um produto de alto valor agregado e interessante nutricionalmente.


The cream cheese had a significant increase of its production in last ten years, and became a product of prominence in the alimentary habits of the consumers. Concomitantly to increase the production, the use of the serum protein also grew as ingredient in milky and not milky foods, being a less onerous alternative to the industries. The objective of this work was to develop twelve cream cheese formularizations using cheese serum, calcium caseinato and melting salt, to evaluate its physical-chemical characteristics and to compare them it the current law and with a commercial product. Also the sensorial attributes had been evaluated: odour, color, texture, global quality, aroma and flavor. The observed results had shown that the physical-chemical characteristics of the formularizations had been similar to the ones of the commercial sample and adjusted according to legislation, indicating that the cream cheese manufacture is possible using cheese serum as base. The use of the calcium caseinato influence the maintenance of the physical-chemical properties of the product. The formularizations using milk serum had presented good acceptance in relation to the commercial mark. The results confirm the nutricional advantages that can be offered the consumer when a by-product of the milked industry is used, generating a product of high aggregate and interesting nutricional value.


Subject(s)
Animals , Calcium/analysis , Dairy Products/analysis , Salts/analysis
10.
Actas Urol Esp ; 30(8): 772-83, 2006 Sep.
Article in Spanish | MEDLINE | ID: mdl-17078574

ABSTRACT

OBJECTIVES: We perform a retrospective review of renal tumors operated with a maximum size of 4 cm to determine if the diagnostic methodology was adequate, the TMN staging prognostic accuracy (UICC 2002) and the goal surgical treatment. MATERIAL AND METHOD: Between 1984 to 2005, 78 renal units form 74 patients (4 bilateral synchronous) operated at the Service of Urology of the Hospital Alemán de Buenos Aires. Age distribution, sex, presentation form (incidental and symptomatic), diagnostic methodology, laboratory variables, surgical treatment (partial or radical surgery), histopathology, Fuhrman grade, tumor size, bilaterality, multicentricity, TNM staging, evolution and survival (Kaplan Meier) were analyzed. RESULTS: 78 renal units from a total of 192, 40.62% were analyzed. The median age was 58.72 years. 69% were male and 31% female. The presentation form was 91.90 % incidental and symptomatic 8.10% (Hematuria in 5 and lung metastasis in 1). The diagnosis was performing with ultrasound and CT scan 63 cases, in 4 was also used resonance magnetic imaging (RMI) and in 7 ultrasound and RMI. Arteriography was used in 11 cases, 3 showed tumor and 8 were normal. Biopsy was performing in 5 cases, all positive for clear cells carcinoma. Globular sedimentation was the only one laboratory abnormality in 12 cases. Surgical treatment was radical surgery in 35 renal units (44.87%) and conservative surgery in 43 units (55.13%). Pathology clear cells carcinoma (CCC) 79.48%, papillary carcinoma 1.28%, angiomyolipoma (AML) 8.97%, oncocytoma 7.69% and adenoma 2.56%. The Fuhrman grade was 1 in 76.19%; 2 in 20.63% and 3 in 3.18%. Bilateral tumor were found in 4 cases 2 CCC, 1 CCC and AML and 1 CCC and adenoma. Tumor median size was 2.93 cm. Staging was T1a 96.82%, T3a 1.59% and T3aM+ 1.59%. Follow-up could be made in 54 of 61 cases. At median follow-up of 52.25 months, 50 cases were disease free, 3 died by progression at 18, 33 and 82 months and all of them were symptomatic tumors, 1 died by a non related cause. Survival rate was 94%. CONCLUSIONS: 1)Ultrasound and CT scan obtained a highest diagnostic accuracy for solid renal mass. Biopsy in selective cases could contribute to achieve a correct treatment strategy. 2) Conservative surgery was the goal treatment in selected tumors up to 4 cm. and we believe that TNM staging should contemplate the presentation form to improve the prognostic value.


Subject(s)
Kidney Neoplasms/pathology , Kidney Neoplasms/surgery , Adult , Aged , Female , Humans , Male , Middle Aged , Neoplasm Staging
11.
Rev. argent. urol. (1990) ; 71(1): 22-33, ene.-mar. 2006. ilus, tab, graf
Article in Spanish | LILACS | ID: lil-435418

ABSTRACT

Objetivos: Estudiar retrospectivamente tumores renales operados con un tamaño máximo de 4 cm.para analizar la metodología diagnóstica empleada, establecer el valor pronóstico de la forma de presentación y evaluar los resultados oncológicos de la cirugía conservadora renal.Materiales y Métodos: Se estudiaron 78 unidades renales pertenecientes a 74 pacientes, de un total de 192 pacientes operados (40,62 porciento), desde enero de 1984 hasta enero del 2005 en el Servicio de Urología del Hospital Alemán. Se analizó la distribución según edad, sexo, forma de presentación, metodología diagnóstica, variables de laboratorio, modalidad de tratamiento quirúrgico, histopatología, grado de malignidad según Fuhrman, estadificación TNM y supervivencia (Kaplan Meier). Resultados: La edad media de 58,72 años, sexo masculino 69 porciento y 31 porciento femenino. La forma de presentación fue el 91,90 porciento incidentales y sintomáticos el 8,10 porciento (hematuria en 5 y metástasis pulmonar en 1). El diagnóstico fue por ecografía y tomografía computada en 63 casos, en 4 casos se necesitó resonancia nuclear magnética (RNM) y en 7 ecografía y RNM. La arteriografía sólo se utilizó en 11 casos. Se realizó biopsia en 5 casos, todas con carcinoma de células claras. Sólo se halló alterada la eritrosedimentación en 12 casos. Se realizó cirugía radical en 35 unidades renales (44,87 porciento) y conservadora en 43 unidades (55,13 porciento). La histopatología fue carcinoma a células claras (CC) 79,48 porciento, carcinoma papilar 1,28 porciento, angiomiolipoma (AML) 8,97 porciento, oncocitoma 7,69 porciento y adenoma 2,56 porciento. El grado Fuhrman de los CC fue 1:76,19 porciento; 2: 20,63 porciento y 3:3,18 porciento. Cuatro casos fueron bilaterales, 2 sendos CC, 1 CC y AML y 1 CC y adenoma. El tamaño tumoral medio fue 2 93 cm. Se hallaban en estadio Tía 96,82 porciento, T3a 1,59 porciento y T3aM+ 1,59 porciento. Se obtuvieron registros de la evolución en 54 de 61 tumores malignos de los cuales, al momento de la revisión, se hallaban 50 casos libres de enfermedad, 3 fallecidos por progresión a los 18, 33 y 82 meses respectivamente y 1 caso fallecido por otra causa. La supervivencia, con tiempo medio de 52,25 meses de seguimiento, fue del 94 porciento


Subject(s)
Humans , Male , Female , Middle Aged , General Surgery , Kidney Neoplasms , Neoplasm Staging , Adenoma, Oxyphilic , Angiography , Angiomyolipoma , Incidental Findings
12.
Rev. argent. urol. (1990) ; 71(1): 22-33, ene.-mar. 2006. ilus, tab, graf
Article in Spanish | BINACIS | ID: bin-119735

ABSTRACT

Objetivos: Estudiar retrospectivamente tumores renales operados con un tamaño máximo de 4 cm.para analizar la metodología diagnóstica empleada, establecer el valor pronóstico de la forma de presentación y evaluar los resultados oncológicos de la cirugía conservadora renal.Materiales y Métodos: Se estudiaron 78 unidades renales pertenecientes a 74 pacientes, de un total de 192 pacientes operados (40,62 porciento), desde enero de 1984 hasta enero del 2005 en el Servicio de Urología del Hospital Alemán. Se analizó la distribución según edad, sexo, forma de presentación, metodología diagnóstica, variables de laboratorio, modalidad de tratamiento quirúrgico, histopatología, grado de malignidad según Fuhrman, estadificación TNM y supervivencia (Kaplan Meier). Resultados: La edad media de 58,72 años, sexo masculino 69 porciento y 31 porciento femenino. La forma de presentación fue el 91,90 porciento incidentales y sintomáticos el 8,10 porciento (hematuria en 5 y metástasis pulmonar en 1). El diagnóstico fue por ecografía y tomografía computada en 63 casos, en 4 casos se necesitó resonancia nuclear magnética (RNM) y en 7 ecografía y RNM. La arteriografía sólo se utilizó en 11 casos. Se realizó biopsia en 5 casos, todas con carcinoma de células claras. Sólo se halló alterada la eritrosedimentación en 12 casos. Se realizó cirugía radical en 35 unidades renales (44,87 porciento) y conservadora en 43 unidades (55,13 porciento). La histopatología fue carcinoma a células claras (CC) 79,48 porciento, carcinoma papilar 1,28 porciento, angiomiolipoma (AML) 8,97 porciento, oncocitoma 7,69 porciento y adenoma 2,56 porciento. El grado Fuhrman de los CC fue 1:76,19 porciento; 2: 20,63 porciento y 3:3,18 porciento. Cuatro casos fueron bilaterales, 2 sendos CC, 1 CC y AML y 1 CC y adenoma. El tamaño tumoral medio fue 2 93 cm. Se hallaban en estadio Tía 96,82 porciento, T3a 1,59 porciento y T3aM+ 1,59 porciento. Se obtuvieron registros de la evolución en 54 de 61 tumores malignos de los cuales, al momento de la revisión, se hallaban 50 casos libres de enfermedad, 3 fallecidos por progresión a los 18, 33 y 82 meses respectivamente y 1 caso fallecido por otra causa. La supervivencia, con tiempo medio de 52,25 meses de seguimiento, fue del 94 porciento(AU)


Subject(s)
Humans , Male , Comparative Study , Female , Middle Aged , Kidney Neoplasms , General Surgery , Neoplasm Staging , Angiography , Angiomyolipoma , Adenoma, Oxyphilic
14.
São Paulo; Instituto de Saúde SES-SP; 1976. 41 p.
Monography in Portuguese | LILACS, Sec. Est. Saúde SP, SESSP-ISPROD, Sec. Est. Saúde SP, SESSP-ISACERVO | ID: biblio-1079279
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