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1.
Rev. colomb. anestesiol ; 49(4): e400, Oct.-Dec. 2021. graf
Article in English | LILACS, COLNAL | ID: biblio-1341243

ABSTRACT

The accompanying images demonstrate giant pulmonary artery aneurysms in a patient with idiopathic pulmonary arterial hypertension (Image 1). In addition to the main pulmonary artery, both the left and right pulmonary arteries are aneurysmal and are compressing the lung parenchyma (Image 2).


Las imágenes adjuntas muestran aneurismas gigantes de la arteria pulmonar en un paciente con hipertensión arterial pulmonar idiopática (Imagen 1). Además de la arteria pulmonar principal, tanto la arteria pulmonar izquierda como la derecha son aneurismáticas y están comprimiendo el parénquima pulmonar (Imagen 2).


Subject(s)
Humans , Pulmonary Artery , Radiology , Aneurysm , Familial Primary Pulmonary Hypertension , Parenchymal Tissue , Heart Defects, Congenital
2.
Arq. bras. med. vet. zootec. (Online) ; 72(4): 1263-1270, July-Aug. 2020. tab, ilus
Article in Portuguese | ID: biblio-1131508

ABSTRACT

Glicocorticoides são amplamente utilizados na clínica de pequenos animais, entretanto seu uso contínuo pode causar efeitos colaterais. Os gatos são considerados menos susceptíveis a esses efeitos do que outras espécies, mas existem poucos trabalhos abordando os efeitos adversos em felinos. O objetivo deste estudo foi avaliar possíveis alterações laboratoriais, histopatológicas e do grau de atenuação radiográfica do parênquima hepático de gatas submetidas à terapia com prednisolona. Um ensaio clínico foi realizado em quatro gatas hígidas, as quais receberam prednisolona, por via oral, na dose de 3mg/kg, durante 60 dias consecutivos. Nos achados histopatológicos após 60 dias de tratamento, observou-se desorganização dos cordões de hepatócitos e degeneração vacuolar, além de necrose de hepatócitos, porém não foram observados sinais de fibrose no parênquima hepático. Os dados da tomografia computadorizada demonstram aumento do grau de atenuação do parênquima hepático a partir do 30º dia da administração de prednisolona, que persistiu até o final do experimento. No presente estudo, foi possível caracterizar a existência de hepatopatia esteroidal em gatos em estágios precoces da terapia com prednisolona.(AU)


Glucocorticoids are widely used medications in small animal practice; however, its continuous use can have side effects. Cats are considered less susceptible than other species, however, the literature does not usually address adverse effects in felines. The objective of this study was to evaluate possible laboratory and histopathologic changes, as well as changes to the degree of radiographic attenuation of the hepatic parenchyma in cats treated with prednisolone. A clinical trial was done in four healthy cats, who received prednisolone orally at 3mg/kg during 60 consecutive days. In the histopathologic findings at 60 days of treatment, there were disorganized hepatocyte chords and vacuolar degeneration, as well as hepatocyte necrosis, however, there were no signs of fibrosis in the hepatic parenchyma. Data obtained via computed tomography showed increase of the degree of attenuation in the hepatic parenchyma from day 30 of prednisolone therapy, which persisted until the end of the experiment. In the present study, it was possible to characterize the existence of steroidal hepathopathy in cats in the early stages of prednisolone therapy.(AU)


Subject(s)
Animals , Female , Cats , Prednisolone/administration & dosage , Hepatocytes/drug effects , Glucocorticoids/adverse effects , Fibrosis , Tomography, X-Ray Computed/veterinary , Parenchymal Tissue
3.
Rev. fac. cienc. méd. (Impr.) ; 17(1): 26-30, ene.-jun. 2020. ilus
Article in Spanish | LILACS | ID: biblio-1223830

ABSTRACT

La enfermedad renal crónica es la vía final común de distintas patologías que afectan al parénquima renal. La prevalencia e incidencia de esta enfermedad se ha incrementado en las últimas décadas de forma exponencial, que la convierte en un grave problema de salud pública a nivel mundial, de acuerdo a su estadio requiere terapia de sustitución renal tipo diálisis peritoneal. La piel y sus anexos son afectados cuando existe un deterioro crónico de la función renal, algunas de las cuales influyen notoriamente en la calidad de vida de estos pacientes. Objetivo: identificar las manifestaciones en piel de los pacientes con enfermedad renal crónica, en diálisis peritoneal. Material y Métodos: estudio no experimental, transversal, descriptivo. Previo consentimiento informado, se evaluó a todos los 87 pacientes en diálisis peritoneal automatizada intermitente, de la sala de Nefrología del Hospital Escuela Universitario, de julio a diciembre del 2017. Se aplicó instrumento obteniendo datos generales, condición metabólica actual, tiempo en diálisis peritoneal y se realizó examen físico en búsqueda de manifestaciones dermatológicas por un dermatólogo, el día que asistieron a su sesión programada de diálisis. Se utilizó el programa estadístico Epi-Info versión 7.2. Resultados: todos los pacientes estudiados tenían al menos 2 manifestaciones dermatológicas, las de mayor frecuencia fueron: xerosis 72(82.8%), palidez 80(81.4%), alteraciones ungüeales 64(73.4%), prurito 56(64.4%), alteraciones pigmentarias 47(54%) y alteraciones en pelo 46(52.9%). Conclusión: la xerosis fuela manifestación más frecuente; no se encontró relación entre xerosis y prurito, ni entre prurito y niveles de azoados, calcio o fosforo. La principal manifestación en uñas fue onicopaquia y en pelo dermatitis seborreica.La incidencia de manifestaciones dermatológicas en pacientes con enfermedad renal crónica fue mayor a la de otros estudios, es importante identificar estos signos y síntomas para realizar diagnósticos tempranos y tratamientos oportunos...(AU)


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Skin Manifestations , Renal Insufficiency/diagnosis , Peritoneal Dialysis, Continuous Ambulatory , Parenchymal Tissue
4.
Arq. bras. med. vet. zootec. (Online) ; 71(4): 1277-1285, jul.-ago. 2019. tab, graf, ilus
Article in English | ID: biblio-1038601

ABSTRACT

This study aimed to evaluate the use of some testicular traits to identify boars with low sperm morphological quality. The consistency (scores from 1 to 5), tone with tonometry (mm), parenchyma echogenicity and heterogeneity with ultrasound (pixel) were assessed in 402 mature boars (18.5 months on average). Sperm abnormality thresholds (≤ 25% of total sperm abnormalities, ≤ 5% of heads, acrosome, neck or midpiece defects, ≤ 10% tail defects, and 15% cytoplasmic droplets) were used to classify boars as approved or disapproved. Three classes of testicular traits were formed (extremely low and high values, approximately 15% each, were kept in separated classes). When the traits were individually evaluated, fewer boars were approved if the echogenicity or heterogeneity were high, or if the tone was rigid. When evaluated in combination, the interaction between heterogeneity and tone, and between heterogeneity and echogenicity were significant. The high heterogeneity combined with soft tone or with hypo-echogenicity resulted in lower approval of boars. Tonometry and ultrasonography have a moderate potential to be included in breeding soundness examination of boars. When combined, they provide more reliable information about the impact of testicular parenchymal alterations on morphology of sperm cells.(AU)


O estudo objetivou avaliar o uso de características testiculares para identificar reprodutores com baixa qualidade de morfologia espermática. A consistência (escore de 1 a 5), o tônus por tonometria (mm), a ecogenicidade e a heterogeneidade do parênquima testicular por ultrassonografia (pixel) foram avaliados em 402 machos suínos maduros (18,5 meses, em média). Limiares máximos de anormalidades espermáticas (≤ 25% de defeitos totais, ≤ 5% de defeitos de cabeça, acrossoma, colo e peça intermediária, ≤ 10% de defeitos de cauda e 15% de gota citoplasmática) foram utilizados para classificar os machos como aprovados ou reprovados. Três classes de características testiculares foram formadas (valores extremamente baixos e altos, aproximadamente 15% em cada, foram mantidos em classes separadas). Quando as características testiculares foram avaliadas individualmente, menos machos foram aprovados se a ecogenicidade ou a heterogeneidade foram altas, ou se o tônus era rígido. Quando avaliadas em combinação, a interação entre heterogeneidade e tônus e a interação entre heterogeneidade e ecogenicidade foram significativas. A alta heterogeneidade combinada com testículos flácidos ou com testículos hipoecogênicos resultou em menor aprovação de cachaços. A tonometria e a ultrassonografia possuem potencial moderado para serem incluídas no exame andrológico de cachaços. Quando combinadas, as técnicas fornecem uma informação mais consistente do impacto das alterações do parênquima testicular na morfologia das células espermáticas.(AU)


Subject(s)
Animals , Male , Swine/anatomy & histology , Testis/anatomy & histology , Parenchymal Tissue/anatomy & histology , Genetic Heterogeneity , Semen Analysis/veterinary , Manometry/veterinary
5.
Med. UIS ; 32(2): 23-30, mayo-ago. 2019. tab
Article in Spanish | LILACS | ID: biblio-1114964

ABSTRACT

Resumen Introducción: la neumonía adquirida en la comunidad es una infección aguda del parénquima pulmonar que corresponde a una importante causa de morbi-mortalidad en Colombia. En esta entidad, se ha asociado la pobre calidad en la atención y la mala adherencia a las guías de manejo con un impacto negativo tanto en el desenlace clínico del paciente, como en la academia y solvencia económica de un Hospital Universitario. Objetivo: describir la calidad de la atención médica y adherencia a la guía colombiana de manejo de la neumonía adquirida en la comunidad en el Hospital Universitario de Santander durante el periodo 2014-2015. Materiales y métodos: estudio descriptivo de corte transversal; se seleccionaron 121 historias clínicas con diagnóstico de Neumonía Adquirida en la Comunidad en el Hospital Universitario de Santander durante el periodo 2014-2015. A partir de estas, se recolectaron variables respecto a la aproximación diagnóstica, asignación de tratamiento y recomendaciones generales, evaluando por cada ítem individual el porcentaje de adherencia a la guía de Neumonía adquirida en la comunidad de la Asociación Colombiana de Infectología y los criterios de calidad en la atención de la Community Acquired Pneumonia Organization. Resultados: los ítems con mayor cumplimiento fueron: el hemoleucograma (100%) y la toma de radiografía de tórax (98%). Por otra parte, la clasificación CURB-65 (15%), la indicación de radiografía de tórax en el control (12%) y las recomendaciones para cese de tabaquismo y vacunación (0%) fueron los parámetros con menor rendimiento. Conclusiones: se evidenció una falencia en el proceso de clasificación clínica del paciente, condición que, asociada al escaso uso de laboratorios de diagnóstico microbiológico y el excesivo uso de estudios de imagen no indicados como la tomografía computarizada, favorece un tratamiento ineficiente y el desarrollo de resistencia farmacológica. MÉD.UIS.2019;32(2):23-30


Abstract Introduction: community-acquired pneumonia is an acute infection of lung parenchyma, being nowadays an important cause of morbidity and mortality in Colombia. In this entity, poor health care quality and poor adherence to management guidelines has been associated with a negative impact on both, the clinical outcome of the patient and the academic and financial solvency of a university hospital. Objective: to describe the quality of medical care and adherence to the Colombian community-acquired pneumonia guideline in the Hospital Universitario de Santander during the 2014-2015 period. Methods: descriptive cross-sectional study. 121 clinical records with diagnosis of community-acquired pneumonia in the Hospital Universitario de Santander were selected. Variables regarding diagnostic approach, treatment assignment and general recommendations were collected from these, evaluating for each item the proportion of adherence to the guideline as well as the quality criteria in medical care defined by the Community Acquired Pneumonia Organization. Results: items with best reported adherence were: complete blood count (100%) and chest X-ray (98%). On the other hand, CURB-65 classification (15%), chest X-ray indicated for the ambulatory control (12%), as well as recommendations for cessation of smoking and vaccination (0%), were the parameters with the lowest performance. Conclusions: there was evidence of failure in the clinical classification of the patient, which was associated with poor use of microbiological diagnostic laboratories and overuse of imaging studies such as computed tomography, thus favoring inefficient treatment and development of bacterial pharmacological resistance. MÉD.UIS.2019;32(2):23-30


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Aged, 80 and over , Pneumonia , Quality of Health Care , Attention , Therapeutics , Thorax , Tobacco Use Disorder , Radiography , Smoking , Tomography, X-Ray Computed , Medical Records , Cross-Sectional Studies , Morbidity , Mortality , Vaccination , Practice Guideline , Colombia , Quality Management , Medical Care , Diagnosis , Control , Infectious Disease Medicine , Parenchymal Tissue , Infections , Lung
6.
Bol. méd. postgrado ; 35(1): 21-24, Ene-Jun. 2019.
Article in Spanish | LILACS, LIVECS | ID: biblio-1120636

ABSTRACT

Con el objetivo de identificar hallazgos ecográficos en el parénquima tiroideo en el personal ocupacionalmente expuesto y no expuesto a radiación ionizante (RI) del Hospital Central Universitario Dr. Antonio María Pineda, se realizó un estudio descriptivo transversal con una muestra de 45 individuos expuestos a RI del Servicio de Radiología y Diagnóstico por Imágenes Dr. Theoscar Sanoja Hernández y 38 individuos de los Servicios de Traumatología y Ortopedia y Medicina Física y Rehabilitación que no están expuestos a RI obteniendo que el 63% del personal expuesto presentaron algún tipo de alteración en el ultrasonido tiroideo en comparación con el 43% del personal no ocupacionalmente expuesto; los hallazgos más frecuentes en el personal expuesto fueron bocio difuso (44%), nódulos (32%) y quistes (24%) mientras que en el personal no expuesto fueron quistes (38%), bocio difuso (19%) y nódulos (19%). Estos hallazgos permiten concluir que el porcentaje del personal con afectación de la glándula tiroides fue mayor en personal expuesto y que los hallazgos ecográficos difieren entre los grupos estudiados(AU)


In order to identify ultrasound findings in thyroid parenchyma of hospital staff exposed and not exposed to ionizing radiation (IR) of the Hospital Central Universitario Dr. Antonio Maria Pineda, we performed a cross-sectional descriptive study with a sample of 45 individuals exposed to IR who worked in the Servicio de Radiología y Diagnóstico por Imágenes Dr. Theoscar Sanoja Hernández and 38 individuals who worked at the Servicios de Traumatología y Ortopedia y Medicina Física y Rehabilitación and were not exposed. The results showed that 63% of the exposed group had ultrasound thyroid findings in contrast to 43% of the non-exposed group. The most common findings in the exposed group were diffuse goiter (44%), nodules (32%) and cysts (24%) and in the non-exposed group were cysts (38%), diffuse goiter (19%) y nodules (19%). These findings show that ultrasound thyroid findings was higher in exposed hospital staff and that the type of thyroid disease differ among both groups(AU)


Subject(s)
Humans , Male , Female , Radiation, Ionizing , Thyroid Gland , Thyroid Hormones , Ultrasonography , Diagnostic Imaging , Endocrine System , Parenchymal Tissue/pathology
7.
Arch. endocrinol. metab. (Online) ; 63(2): 128-136, Mar.-Apr. 2019. tab, graf
Article in English | LILACS | ID: biblio-1001219

ABSTRACT

ABSTRACT Objective: Nonalcoholic fatty liver disease is the commonest diffuse liver disease, of which women with polycystic ovary syndrome are at an increased risk. The aim of the present study was to assess the diagnostic value of the semiquantitative strain parameters of real-time ultrasound elastography for nonalcoholic fatty liver disease in patients with polycystic ovary syndrome. Subjects and methods: Thirty-five polycystic ovary syndrome patients with nonalcoholic fatty liver disease, 70 polycystic ovary syndrome patients without nonalcoholic fatty liver disease, and 70 healthy female controls of reproductive age were included. All participants underwent ultrasonic examination and semiquantitative analysis of real-time ultrasound elastography of the liver. Results: Main semi quantitative strain parameters, such as average strain value, differed significantly among groups polycystic ovary syndrome with nonalcoholic fatty liver disease, polycystic ovary syndrome without nonalcoholic fatty liver disease, and control (87.02 ± 10.16 vs. 96.31 ± 11.44 vs. 104.49 ± 7.28, p < 0.001). Clinical and laboratory parameters differed significantly between the two subgroups with low or high average strain value. For diagnostic value of average strain value for elevated aminotransferase, the area under the curve was 0.808 (range 0.721-0.895). In multiple linear regression analysis, polycystic ovary syndrome, waist circumference, and metabolic syndrome were stand-alone independent factors associated with average strain value among subjects without nonalcoholic fatty liver disease. Conclusion: Semiquantitative real-time ultrasound elastography analysis could distinguish liver parenchyma alterations in patients with polycystic ovary syndrome more sensitively. The diagnostic value of the proposed method for nonalcoholic fatty liver disease need further research.


Subject(s)
Humans , Female , Adult , Young Adult , Polycystic Ovary Syndrome/diagnostic imaging , Elasticity Imaging Techniques/methods , Non-alcoholic Fatty Liver Disease/diagnostic imaging , Polycystic Ovary Syndrome/physiopathology , Blood Pressure , Image Processing, Computer-Assisted , Body Mass Index , Sensitivity and Specificity , Diagnosis, Differential , Waist Circumference , Non-alcoholic Fatty Liver Disease/physiopathology , Parenchymal Tissue/physiopathology , Parenchymal Tissue/diagnostic imaging , Transaminases/blood , Menstruation/physiology
9.
Rev. colomb. nefrol. (En línea) ; 5(2): 107-117, jul.-dic. 2018. tab, graf
Article in Spanish | LILACS, COLNAL | ID: biblio-1093012

ABSTRACT

Resumen Antecedentes: los síndromes renales son manifestaciones clínicas y de laboratorio que indican alteraciones funcionales y morfológicas. La biopsia renal es fundamental en el diagnóstico de enfermedades renales parenquimales y aporta información valiosa sobre la incidencia, distribución y posible control de la enfermedad. Objetivo: describir las características clínicas e histológicas de las enfermedades del parénquima renal en una muestra de biopsias renales. Métodos: se incluyeron 269 pacientes mayores de 14 años, a quienes se les realizó biopsia renal por cualquier método. Se clasificaron por indicación de biopsia y por tipo de lesión renal primaria o secundaria. Resultados: el promedio de edad fue de 57,04 (DE ± 17,17 años). La mediana de creatinina fue 1,51 mg/dl (RIC=1,22 - 2,01); y la de TFG por CKD-EPI, de 42,7 mil/minuto (RIC= 30,6 - 56,5). Las indicaciones de biopsia renal más frecuentes fueron enfermedad renal crónica sin causa clara (46,8 %), proteinuria no nefrótica (20,1 %), síndrome nefrítico (8,2 %), lesión renal aguda (7,1 %), hematuria glomerular con cambio en el patrón (7,1 %), síndrome nefrótico (6,7 %) y tasa de filtración glomerular estimada baja para la edad sin causa clara (4,1 %). Los hallazgos encontrados fueron: nefropatía por IgA (20,9 %), nefropatía hipertensiva (19 %), glomeruloesclerosis focal y segmentaria (11,6 %), nefritis tubulointersticial (9,7 %), glomerulopatía diabética (8,6 %), glomerulonefritis membranoproliferativa (3,7 %) y glomerulonefritis proliferativa extracapilar (3,4 %). Conclusiones: la nefropatía por IgA y la glomeruloesclerosis focal y segmentaria son las principales glomerulopatías primarias. La nefropatía hipertensiva y la nefritis tubulointersticial son las principales etiologías secundarias.


Abstract Background: Renal syndromes are clinical and laboratory manifestations that indicate functional and morphological alterations. Renal biopsy is essential in the diagnosis of kidney parenchymal diseases and provides valuable information in incidence, distribution and possible control of the disease. Objective: To describe the clinical and histological characteristics of renal parenchymal diseases in a sample of renal biopsies. Methods: We included 269 patients older than 14 years who underwent renal biopsy by any method. They were classified by indication of biopsy and by type of primary or secondary kidney injury. Results: The average age was 57, 04 (SD ± 17, 17 years). The median creatinine was 1, 51 mg / dL (RIC=1, 22 - 2,01) and the GFR for CKD-EPI was 42,7 mil/minute (RIC=30,6 - 56,5). The most frequent renal biopsy indications were unexplained chronic kidney disease (46,8 %), non-nephrotic proteinuria (20,1 %), nephritic syndrome (8,2 %), acute kidney injury (7,1 %), glomerular hematuria with change in the pattern (7,1 %), nephrotic syndrome (6,7 %) and unexplained low glomerular filtration for age (4,1 %). The most frequent finding were IgA nephropathy (20,9 %), hypertensive nephropathy (19 %), focal and segmental glomerulosclerosis (11,6 %), tubulointerstitial nephritis (9,7 %), diabetic glomerulopathy (8,6 %), membranoproliferative glomerulonephritis (3,7 %), extracapillary proliferative glomerulonephritis (3,4 %). Conclusions: IgA nephropathy and focal segmental glomerulosclerosis are the main primary glomerulopathies. Hypertensive nephropathy and tubulointerstitial nephritis are the main secondary etiologies.


Subject(s)
Humans , Male , Female , Biopsy , Parenchymal Tissue , Kidney Diseases , Proteinuria , Colombia , Hematuria
10.
Pesqui. vet. bras ; 38(6): 1196-1202, jun. 2018. tab, graf
Article in English | ID: biblio-955442

ABSTRACT

This study aimed to identify changes related to brain parenchyma as advancing age in healthy domestic cats. Our hypothesis is that cats suffer cerebral and cerebellar atrophy and show focal changes in signal intensity of the brain parenchyma in accordance with the progression of age. Twelve adult (1 to 6 years), eleven mature (7 to11 years) and ten geriatric non-brachycephalic cats (12 years or more of age) underwent brain magnetic resonance imaging (MRI). There were no changes in signal intensity and contrast uptake in brain parenchyma of the cats. Geriatric animals showed significantly lower average thickness of the interthalamic adhesion and percentage of the cerebral parenchyma volume in relation to intracranial volume than those found in the adult group. No significant differences were found between groups for cerebral volume, cerebellar volume and percentage of cerebellar volume in relation to intracranial volume. The results of this study indicate that atrophy of the cerebral parenchyma, including the interthalamic adhesion, occurs with age in domestic cats, confirming the hypothesis of the study. However, the results did not corroborate the hypothesis that cats show cerebellar atrophy and focal changes in signal intensity of the brain parenchyma with advancing age.(AU)


Este estudo objetivou a identificação de alterações no parênquima cerebral relacionadas ao avanço da idade em gatos domésticos saudáveis. Nossa hipótese é de que os gatos sofrem atrofia cerebral e cerebelar, além de alterações focais na intensidade do sinal do parênquima cerebral, de acordo com a progressão da idade. Doze gatos não braquicéfalos adultos (1 a 6 anos), onze maduros (7 a 11 anos) e dez geriátricos (12 anos ou mais) foram submetidos à ressonância magnética encefálica. Não foram observadas alterações na intensidade do sinal e na captação de contraste do parênquima encefálico nos gatos. Os animais geriátricos apresentaram médias da espessura da adesão intertalâmica e porcentagem do volume do parênquima cerebral, em relação ao volume intracraniano, significativamente menores a aquelas encontradas no grupo dos adultos. Não foram encontradas diferenças significativas entre os grupos para volume cerebral, volume cerebelar e porcentagem de volume cerebelar em relação ao volume intracraniano. Os resultados deste estudo indicam que a atrofia do parênquima cerebral, incluindo a adesão intertalâmica, ocorre com o avanço da idade em gatos domésticos, confirmando a hipótese do estudo. No entanto, os resultados não corroboraram a hipótese de que os gatos apresentam atrofia cerebelar e alterações focais na intensidade do sinal do parênquima encefálico com a progressão da idade.(AU)


Subject(s)
Animals , Cats , Cats/anatomy & histology , Aging, Premature/diagnosis , Parenchymal Tissue/abnormalities
11.
Clinics ; 73: e49, 2018. tab, graf
Article in English | LILACS | ID: biblio-952783

ABSTRACT

OBJECTIVES: The number of pancreatic transplants has decreased in recent years. Pancreatic grafts have been underutilized compared to other solid grafts. One cause of discard is the macroscopic appearance of the pancreas, especially the presence of fatty infiltration. The current research is aimed at understanding any graft-related association between fatty tissue infiltration of the pancreas and liver steatosis. METHODS: From August 2013 to August 2014, a prospective cross-sectional clinical study using data from 54 multiple deceased donor organs was performed. RESULTS: Micro- and macroscopic liver steatosis were significantly correlated with the donor body mass index ([BMI]; p=0.029 and p=0.006, respectively). Positive gamma associations between pancreatic and liver macroscopic and microscopic findings (0.98; confidence interval [CI]: 0.95-1 and 0.52; CI 0.04-1, respectively) were observed. Furthermore, comparisons of liver microscopy findings showed significant differences between severe versus absent (p<0.001), severe versus mild (p<0.001), and severe versus moderate classifications (p<0.001). The area under the receiver operating curve was 0.94 for the diagnosis of steatosis by BMI evaluation using a cut-off BMI of 27.5 kg/m2, which yielded 100% sensitivity, 87% specificity, and 100% negative predictive value. CONCLUSIONS: We observed a positive association of macroscopic and microscopic histopathological findings in steatotic livers with adipose infiltration of pancreatic grafts.


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Adolescent , Adult , Middle Aged , Aged , Young Adult , Pancreas/pathology , Adipose Tissue/pathology , Fatty Liver/pathology , Liver/pathology , Tissue Donors/statistics & numerical data , Biopsy , Body Mass Index , Adipose Tissue/transplantation , Cross-Sectional Studies , Prospective Studies , Sensitivity and Specificity , Pancreas Transplantation , Area Under Curve , Parenchymal Tissue/pathology , Liver/ultrastructure
12.
Pesqui. vet. bras ; 37(8): 897-903, Aug. 2017. tab, ilus
Article in Portuguese | ID: biblio-895492

ABSTRACT

A espécie Leopardus pardalis, conhecida popularmente como jaguatirica, é um felino de médio porte com ampla distribuição em território nacional e está incluída na lista de espécies da fauna brasileira ameaçadas de extinção. Este estudo teve como objetivo caracterizar os aspectos macroscópicos e microscópico da traqueia e lobos pulmonares em L. pardalis. As análises foram feitas utilizando cinco exemplares de jaguatirica, sendo dois machos e três fêmeas, adultos, três desses exemplares foram a óbito por atropelamento em rodovias próximas ao município de Alta Floresta, e dois doados após a morte pelo IBAMA ao o Laboratório de Zoologia e Morfologia Animal. Nos espécimes a traqueia era um tubo flexível formado por pares de arcos cartilaginosos, apresentando epitélio pseudo-estratificado não ciliado no seu revestimento interno, e outros estruturas básicas deste órgão. O pulmão se mostrou como um órgão constituído por lobos separados por fissuras com um parênquima usual aos demais mamíferos descritos. No que diz respeito às caraterísticas anatômicas da traqueia e pulmão se mostraram semelhantes à de outros mamíferos, já nos aspectos microscópicos da traqueia apresentou certas peculiaridades diferindo dos demais trabalhos encontrados. No que tange o aspecto do parênquima pulmonar as características histológicas não variaram com as que estão descritas.(AU)


The species Leopardus pardalis, popularly known as ocelot, is a medium sized cat with wide distribution in the national territory and is included in the list of species of Brazilian fauna threatened with extinction. This study aimed to characterize the macroscopic and microscopic aspects of the trachea and lung lobes in L. pardalis. Analyses were performed using five copies of ocelot, two males and three females, adults, three of these specimens died from being run over on highways nearby the municipality of Alta Floresta, and two donated after death by IBAMA to the Laboratory of Zoology and Animal Morphology. In the trachea specimens was a flexible tube formed by pairs of cartilaginous arches, with pseudo-stratified epithelium ciliated not in its inner lining, and other basic structures of this body. Lung proved as a body made up of lobes separated by cracks with a usual parenchyma to the other described mammals. With respect to the anatomic features of the trachea and lung were similar to other mammals, as in the microscopic aspects of the trachea showed certain peculiarities found differing from the other jobs. Regarding the appearance of the lung parenchyma histological characteristics did not differ with those described.(AU)


Subject(s)
Animals , Trachea/anatomy & histology , Bronchi/anatomy & histology , Felidae/anatomy & histology , Parenchymal Tissue/anatomy & histology , Lung/anatomy & histology , Respiratory System/anatomy & histology , Animals, Wild/anatomy & histology
13.
Int. braz. j. urol ; 43(4): 655-660, July-Aug. 2017. tab, graf
Article in English | LILACS | ID: biblio-892857

ABSTRACT

ABSTRACT Introduction Radical nephrectomy (RN), a recommended treatment option for patients with Renal cell carcinoma (RCC) leads to an inevitable decline in global renal function. Pathological changes in the non-tumour parenchyma of the kidney may help predict the function of the remaining kidney. Materials and Methods Aim of this prospective, observational study was to find histopathological factors in the non-tumor renal parenchyma that could predict the decline in global renal function postoperatively and its association with co-morbidities like diabetes (DM). Data of consecutive patients undergoing RN from December-2013 to January-2015 was collected. Non-tumor parenchyma of the specimen was reported by a dedicated histopathologist. eGFR was calculated using Cockcroft-Gault formula before the surgery and at last follow up of at least 12 months. Results 73 RN specimens were analyzed. Mean follow up was 12.3 months. The mean decrease in eGFR was 22% (p=.0001). Percent decrease in eGFR did not show association with any of the histopathological parameters studied. DM was significantly associated with decrease in percent eGFR (p<0.05) and increase in arteriolar hyalinosis (p=0.004), Glomerulosclerosis (p=0.03) and Interstitial fibrosis/ Tubular atrophy (p=.0001). Maximum size of the tumor showed a negative correlation with percentage change in eGFR (p=.028). Conclusion Histological parameters in the non-tumour portion of the RN specimen may not be able to predict renal function outcome over a short follow up. However, presence of DM was associated with adverse pathological changes and significant decrease in renal function postoperatively.


Subject(s)
Humans , Male , Female , Carcinoma, Renal Cell/surgery , Parenchymal Tissue/pathology , Kidney/pathology , Kidney Neoplasms/surgery , Nephrectomy , Carcinoma, Renal Cell/pathology , Predictive Value of Tests , Prospective Studies , Glomerular Filtration Rate , Kidney/physiopathology , Kidney Neoplasms/pathology , Middle Aged
14.
Einstein (Säo Paulo) ; 15(2): 178-185, Apr.-June 2017. tab, graf
Article in English | LILACS | ID: biblio-891376

ABSTRACT

ABSTRACT Objective To analyze the influence of portal vein ligation in hepatic regeneration by immunohistochemical criteria. Methods Ten pigs divided into two groups of five animals underwent hepatectomy in two stages, and the groups were differentiated by ligation or not of the left portal vein tributary, which is responsible for vascularization of the left lateral and medial lobes of the pig liver. Five days after the procedure, the animals underwent liver biopsies for further analysis of histological and immunohistochemical with marker Ki67. Results The group submitted to hepatectomy with vascular ligation showed an increase of approximately 4% of hepatocytes in regeneration status, as well as a greater presence of Kupffer and inflammatory cells as compared to control. Conclusion As a result of positive cell replication observed through the Ki67 marker, we can suspect that the ligation of a tributary of the portal vein associated with liver resection promoted a greater stimulus of liver regeneration when compared to liver resection alone.


RESUMO Objetivo Analisar a influência da ligadura da tributária da veia porta no estímulo regenerativo hepático por meio de critérios imuno-histoquímicos. Métodos Dez suínos, divididos em dois grupos de cinco animais, foram submetidos à hepatectomia em dois estágios, sendo que os grupos foram diferenciados pela ligadura ou não da tributária da veia porta, responsável pela vascularização dos lobos lateral e medial esquerdos do fígado do suíno. Cinco dias após o procedimento, os animais foram reabordados para retirada de amostras hepáticas para posterior análise de histológica e imunoistoquímica com o marcador Ki67. Resultados O grupo submetido à hepatectomia com ligadura vascular apresentou incremento de 4% aproximadamente de hepatócitos em processo de regeneração, bem como grande número de células de Kupffer e células inflamatórias, quando comparado ao controle. Conclusão Em virtude da análise positiva da replicação celular observada por meio do marcador Ki67, pode-se observar que a ligadura de uma tributária da veia porta promoveu um maior estímulo de regeneração hepática, efeito observado com menor intensidade no grupo submetido apenas à ressecção hepática.


Subject(s)
Animals , Portal Vein/surgery , Parenchymal Tissue/surgery , Hepatectomy/methods , Liver/surgery , Liver Regeneration , Swine , Random Allocation , Ki-67 Antigen/metabolism , Hepatocytes/metabolism , Models, Animal , Parenchymal Tissue/pathology , Leukocytes , Ligation/methods , Liver/pathology
15.
Int. braz. j. urol ; 43(2): 367-370, Mar.-Apr. 2017. graf
Article in English | LILACS | ID: biblio-840820

ABSTRACT

ABSTRACT A 34 year-old woman was admitted to our hospital with left flank pain. A non-contrast enhanced computerized tomography (NCCT) revealed a 1.5x2cm left proximal ureter stone. Patient was scheduled for ureterorenoscopy (URS) and stone removal. She was submitted to retrograde intrarenal surgery (RIRS). At the postoperative 1st day, the patient began to suffer from left flank pain. A NCCT was taken, which revealed a subcapsular hematoma and perirenal fluid. The patient was managed conservatively with intravenous fluid, antibiotic and non-steroidal anti-inflammatory drug therapy and was discharged at the postoperative 6th day. Two weeks after the discharge the patient was admitted to emergency department with severe left flank pain, palpitation and malaise. KUB (kidney-ureter-bladder) radiography showed double-J stent (DJS) to be repositioned to the proximal ureter. Patient was evaluated with contrast enhanced CT which revealed an 8cm intraparenchymal hematoma/abscess in the middle part of the kidney. A percutaneous drainage catheter was inserted into the collection. The percutaneous drainage catheter and the DJS were removed at the 10th day of second hospitalization. RIRS surgery is an effective and feasible choice for renal stones with high success and acceptable complication rates. However, clinician should be alert to possible complications.


Subject(s)
Humans , Female , Adult , Ureteroscopy/adverse effects , Ureteroscopes/adverse effects , Ureterolithiasis/surgery , Parenchymal Tissue/injuries , Hematoma/etiology , Kidney Diseases/etiology , Postoperative Complications/diagnostic imaging , Pressure , Stents/adverse effects , Ureterolithiasis/complications , Parenchymal Tissue/diagnostic imaging , Hematoma/diagnostic imaging , Kidney Diseases/diagnostic imaging
16.
Int. braz. j. urol ; 43(2): 209-215, Mar.-Apr. 2017. tab
Article in English | LILACS | ID: biblio-840819

ABSTRACT

ABSTRACT Purpose To compare the oncologic and clinical outcomes for open partial nephrectomy (OPN) performed in patients with entirely intraparenchymal tumors versus case-matched controls, with exophytic lesions. Material and methods Patients having undergone OPN between 2007 and 2012 were investigated. Exclusion criteria included patients with a benign tumor, advanced malignancy, malignancies other than renal cell carcinoma, end-stage renal failure, or 3 or more co-existing chronic diseases. Individuals with tumors that were invisible at the renal surface were identified, and then matched with 2 controls chosen for tumor size, pathology, age, follow-up period, and presence of a solitary kidney. Oncological status, perioperative, and postoperative data were collected and compared between groups. Results 17 individuals with entirely endophytic RCC tumors and available oncologic status were identified. For five patients, only one suitable control could be identified, bringing the control group number to 29. All tumors were clear cell carcinomas staged at pT1a. Median tumor size was 25mm for endophytic lesions, and 27mm for exophytic masses (P=0.32). The operative period was extended by 20 minutes for intrarenal tumors (P=0.03), with one case of a positive surgical margin in each group (P=0.7). There were no significant differences in perioperative or postoperative complications. Median follow-up was 47 and 43 months for patients with endophytic and exophytic tumors respectively. Disease recurrence was recorded in one patient after endophytic tumor resection, and in four controls (P=0.4). Conclusions OPN shows equivalent safety and efficacy for both intrarenal RCC tumors and exophytic tumors of the same size and type.


Subject(s)
Humans , Male , Female , Aged , Carcinoma, Renal Cell/surgery , Parenchymal Tissue/surgery , Kidney Neoplasms/surgery , Nephrectomy/adverse effects , Nephrectomy/methods , Postoperative Complications , Time Factors , Carcinoma, Renal Cell/pathology , Case-Control Studies , Follow-Up Studies , Treatment Outcome , Statistics, Nonparametric , Tumor Burden , Warm Ischemia , Operative Time , Parenchymal Tissue/pathology , Intraoperative Complications , Kidney Neoplasms/pathology , Middle Aged , Neoplasm Recurrence, Local
17.
Rev. am. med. respir ; 17(1): 92-93, mar. 2017. ilus
Article in Spanish | LILACS | ID: biblio-843039

ABSTRACT

Paciente femenina de 65 años consulta por tumoración en región lateral izquierda del tórax, no dolorosa, que fluctúa con los movimientos respiratorios y la tos. Cumple tratamiento por bronquitis aguda hace una semana. Presenta antecedente de traumatismo en parrilla costal izquierda debido a caída desde altura hace 6 meses. Al examen físico se palpa masa de consistencia elástica, que aumenta ante maniobra de Valsalva. Se solicita radiografía de tórax (RxTx) (Figura 1a) donde se evidencia imagen radiolúcida de contornos bien definidos, que sobrepasa los límites del seno costo-frénico y parrilla costal izquierda ("Signo del pulmón más allá de la costilla")1 , asociado a fracturas de los arcos costales anteriores (10 y 11). En la tomografía computada de tórax (TCTx) se confirma el diagnóstico de hernia pulmonar (Figura 1b). Debido a persistir asintomática y la ausencia de complicaciones, se realizan controles con TCTx y tratamiento conservador


Subject(s)
Parenchymal Tissue , Hernia , Lung
18.
Niger. j. surg. (Online) ; 23(2): 106-110, 2017.
Article in English | AIM | ID: biblio-1267518

ABSTRACT

Background: Intracranial abscess remains a significant health-care problem. Its causes, diagnosis, treatment, and outcome are changing. Aim: This paper reviewed the demography, examined new trends, and compared outcomes with different treatment options. Methodology: Retrospective analysis of intracranial abscesses managed at Memfys Hospital, Enugu (2004­2014) and University of Nigeria Teaching Hospital (2009­2014). Patients were followed up for at least 6 months. All patients had neuroimaging before intervention. Microscopy and culture were performed for the specimens. Intravenous antibiotics were given for 2 weeks before conversion to oral. Results: Seventy-nine parenchymal abscesses (eight cases per year) were managed. Peak age was the second decade of life. Previous head injury (21.5%) and meningitis (16.5%) were the most common predisposing factors. The frontal lobe was most common anatomical location (32%). Only 24% had positive culture result. Three cases were fungal infections. Seventy percent of patients managed with burr hole drainage and 37.5% of craniotomy made complete recovery. Overall, 58% of patients made complete recovery, whereas 19.0% died. Nine percent of cases died before definitive intervention. Among the 24% of patients that presented in coma, 47% died within 6 months. Most important factor influencing mortality was admission level of consciousness. Abscess recurred in 6% of cases. Conclusion: Intraparenchymal abscesses in Enugu were mostly solitary lesions resulting from poorly managed head injury and meningitis. Predisposition from otitis media and systemic diseases has reduced. The proportion of fungal organisms is increasing. A significant proportion of the patients present in coma. Burr hole and aspiration of abscess is less invasive and has very good outcome


Subject(s)
Brain Abscess/diagnosis , Brain Abscess/etiology , Brain Abscess/therapy , Neuroimaging , Nigeria , Parenchymal Tissue
19.
Arq. bras. med. vet. zootec ; 68(6): 1581-1585, nov.-dez. 2016. ilus
Article in English | LILACS, VETINDEX | ID: biblio-827919

ABSTRACT

An omphalocele is a defect in the closure of the abdominal wall during the embryonic stage, preventing the return of some abdominal organs to the cavity. In stillborn animals, the involvement of the liver in the omphalocele has been reported. The aim of the present study is to report the success of a partial liver resection in a female bovine at two days of age which presented an omphalocele at birth. Surgical intervention was indicated to reduce and suture the abdominal wall. During the surgical procedure, the presence of hard, reddish tissue was noted inside the sac covered by the amniotic membrane, with characteristics consistent with hepatic parenchyma. Due to the impossibility of reducing the contents added to the suggestion of tissue infection, we elected to perform a partial resection. The histopathological examination confirmed that the resected tissue was of the hepatic parenchyma. Antibiotic and systemic anti-inflammatory therapies were performed post-surgery. Fifteen days after surgery, infection was detected at the surgical site in addition to abdominal wound dehiscence; surgical reintervention was performed. On physical examination, carried out 4 months after the second operation, the heifer presented normal development for the species. In conclusion, omphalocele may contain liver. Ectopic liver is an extremely rare condition. Surgical treatment in the presented case focused on umbilicus with exploration of the abdominal cavity appeared to be sufficient.(AU)


A onfalocele é um defeito no fechamento da parede abdominal durante a fase embrionária, não permitindo o retorno de alguns órgãos abdominais à cavidade. O envolvimento do fígado em onfalocele tem sido relatado, porém em animais natimortos. Com o presente estudo, objetiva-se relatar uma ressecção parcial do fígado realizada com sucesso em uma fêmea bovina com dois dias de idade apresentando onfalocele ao nascimento. Foi indicada a intervenção cirúrgica para a redução e rafia da parede abdominal. Durante o procedimento cirúrgico, notou-se, no interior do saco recoberto pela membrana amniótica, a presença de tecido firme, de coloração avermelhada, com características compatíveis com parênquima hepático. Devido à impossibilidade de redução do conteúdo e sugestão de infecção do tecido encontrado, optou-se pela ressecção parcial dele. O exame histopatológico confirmou tratar-se de parênquima hepático o tecido resseccionado. No pós-cirúrgico, realizaram-se terapias antibiótica e antiinflamatória sistêmicas. Após 15 dias do procedimento cirúrgico, foi detectada infecção do sítio operatório e deiscência da sutura abdominal, sendo realizada reintervenção cirúrgica. No exame físico, realizado no animal após quatro meses da segunda intervenção cirúrgica, constatou-se desenvolvimento normal para a espécie. Conclui-se que o fígado pode ser conteúdo da onfalolocele, sendo uma condição extremamente rara. O tratamento cirúrgico no caso apresentado, com exploração da cicatriz umbilical e da cavidade abdominal, foi suficiente.(AU)


Subject(s)
Animals , Female , Cattle , Hepatectomy/veterinary , Hernia, Umbilical/veterinary , Liver/surgery , Parenchymal Tissue
20.
Pesqui. vet. bras ; 35(supl.1): 56-60, dez. 2015. ilus
Article in Portuguese | ID: lil-789010

ABSTRACT

A Distrofia Muscular de Duchenne (DMD) é uma doença genética de caráter recessivo que caracterizada por fraqueza muscular progressiva de cintura pélvica e escapular evoluindo para insuficiência respiratória e, ou cardíaca. O camundongo mdx é um modelo amplamente utilizado para estudos da DMD. Apesar do fenótipo destes animais serem mais suave, estes apresentam o principal músculo respiratório, o diafragma com morfologia e bioquímica semelhante à DMD humana, fato este que pode comprometer a função respiratória e consequentemente os pulmões. Foi realizado um estudo anatômico descritivo do parênquima pulmonar dos pulmões de 5 animais modelo mdx comparando estes com os pulmões de 5 camundongos BALB/C57 (Mus musculus). Os pulmões foram analisados macroscopicamente e através de microscopia de luz e eletrônica de varredura. Os achados sugerem que o modelo mdx apresenta morfologia pulmonar semelhante aos camundongos BALB/C57 e que seu uso deve ser cauteloso e criterioso em ensaios clínicos que aborde este órgão.(AU)


The Duchenne Muscular Dystrophy (DMD) is a recessive genetic disease characterized by progressive muscle weakness of the pelvic and scapular girdle and progressing to respiratory or heart failure. The mdx mouse is a model widely used for studies. Although they possess a milder phenotype, the morphology and biochemistry of the diaphragm are similar to human DMD. We performed a descriptive anatomical study of the pulmonary parenchyma of five mdx animal models and compared these with the lungs of 5 mice BALB/C57 (Mus musculus). The findings suggest that the mdx model has morphological features similar to BALB/C57 mice and it must be used with caution in clinical trials which involve the lung.(AU)


Subject(s)
Animals , Mice , Muscular Dystrophy, Duchenne , Heart Failure/veterinary , Lung/cytology , Microscopy, Electron, Scanning/veterinary , Parenchymal Tissue
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