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1.
Rev. Inst. Med. Trop. Säo Paulo ; 50(6): 351-353, Nov.-Dec. 2008. ilus
Article in English | LILACS | ID: lil-499799

ABSTRACT

A 73 year-old male farm laborer from a rural area presented a 15 year history of extensive tumoral lesions over his left leg. Histological studies of skin biopsy showed pseudoepitheliomatous hyperplasia and granulomatous chronic inflammatory process with muriform cells, confirming chromoblastomycosis (CBM). Cladophialophora carrionii was isolated in culture. Treatment with itraconazole 400 mg/day for 12 months resulted in complete remission of lesions. As far we aware, this is the first case report of CBM caused by Cladophialophora carrionii in Rio de Janeiro State, Brazil.


Lavrador, com 73 anos, residente em área rural apresentava há 15 anos lesões tumorais disseminadas na perna esquerda. Exame histopatológico de biópsia de pele mostrou hiperplasia pseudo-epiteliomatosa e processo inflamatório crônico granulomatoso com células muriformes, confirmando o diagnóstico de cromoblastomicose (CBM). Cladophialophora carrionii foi isolado na cultura. Tratamento com itraconazol 400 mg/dia durante 12 meses resultou na completa remissão das lesões. Este é o primeiro relato de CBM causado por C. carrionii no estado do Rio de Janeiro, Brasil.


Subject(s)
Aged , Humans , Male , Ascomycota/isolation & purification , Chromoblastomycosis/epidemiology , Antifungal Agents/therapeutic use , Brazil/epidemiology , Chromoblastomycosis/diagnosis , Chromoblastomycosis/drug therapy , Itraconazole/therapeutic use
2.
Rev. chil. neuro-psiquiatr ; 46(1): 55-62, mar. 2008. tab
Article in Spanish | LILACS | ID: lil-513797

ABSTRACT

Background: Dementia is one of the main problems in public health, affecting 5 to 10 percent of the eider population. The cost-effectiveness analysis of the ancillary tests is controversial. The object of this research is to make a review of the recent studies related to neuroimaging and dementia. Method and Results: English and Spanish studies published in the last ten years were searched in Medline, using evidence-based techniques. 13 systematic reviews were found and analysed. Conclusion: While reversible cases of dementia are rare once detected, most of the experts recommend the routine use of computerized tomography scanning. If the access to this test were restricted, there are some rules to select patients. Magnetic resonance imaging is better for the diagnosis of some subtypes of dementia like Creutzfeldt-Jakob, Huntington or CADASIL. Volumetric spectrometry PET and SPECT would be reserved to investigation protocols or special cases of diagnostic doubt.


Introducción: Las demencias constituyen uno de los principales problemas de salud pública, afectando al 5-10 por ciento de la población mayor de 65 años. Existe controversia respecto al costo-beneficio de los exámenes complementarios destinados a esclarecer el subtipo de demencia y la presencia de factores potencialmente reversibles. El objetivo de este estudio es revisar la literatura actualmente disponible respecto a las neuroimágenes y el diagnóstico de demencia. Métodos y Resultados: Se realizó una búsqueda sistemática en Medline, en inglés y español, restringida a los últimos 10 años. Se encontró y analizó 13 revisiones atingentes al tema. Conclusiones: Aunque los casos de demencia reversible son muy escasos, la mayoría de los expertos recomienda el uso rutinario de la tomografía computarizada. Si el acceso a este examen fuera restringido, se sugiere pautas de selección de pacientes. La resonancia magnética es de mayor ayuda ante la sospecha de patologías específicas como Creutzfeldt-]akob, Huntington o CADASIL. La volumetría, espectrometría, PET y SPECT deberían reservarse por el momento a protocolos de investigación o casos puntuales de duda diagnóstica.


Subject(s)
Humans , Dementia/diagnosis , Diagnostic Imaging/methods , Magnetic Resonance Imaging , Tomography, Emission-Computed, Single-Photon , Tomography, X-Ray Computed , Cerebrum/pathology
3.
Rev. méd. Chile ; 133(11): 1274-1284, nov. 2005. ilus, tab, graf
Article in Spanish | LILACS | ID: lil-419930

ABSTRACT

Background: Stroke is the second cause of mortality and the first cause of morbidity in Chile and worldwide. Nowadays there is a major interest in introducing new therapies applying evidence based medicine for these patients. Aim: To describe the clinical profile of patients attended after a stroke, to determine stroke subtypes and their risk factors. Material and methods: Retrospective review of clinical records of 459 patients (mean age 65±48 years, 238 female) that were admitted to our unit during a period of 37 months. Results: Sixty three percent of patients had an ischemic stroke, 14% had an hemorrhagic stroke, 15% had a transient ischemic attack, 2% had a cerebral venous thrombosis and 6% a subarachnoidal hemorrhage. The global mortality was 1%. Seventy percent of patients had a history of high blood pressure. Conclusions: The most common type of stroke is ischemic and high blood pressure is the main risk factor.


Subject(s)
Adolescent , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Stroke/epidemiology , Hospital Units/statistics & numerical data , Age Distribution , Stroke/classification , Stroke/etiology , Chi-Square Distribution , Chile/epidemiology , Diabetes Complications , Hypertension/complications , Retrospective Studies , Risk Factors , Sex Distribution
4.
Rev. méd. Chile ; 132(12): 1523-1526, dez. 2004. ilus, tab
Article in Spanish | LILACS | ID: lil-394452

ABSTRACT

The temporal crescent syndrome or half-moon syndrome is a rare mono ocular retrochiasmatic visual field defect that can be correlated to a lesion along the contralateral parieto-occipital sulcus. This field defect may be missed in automated perimetry. We report a 45 years old man, consulting for sudden loss of the peripheral temporal field in his right eye. The magnetic resonance imaging and the spectroscopy studies confirmed an ischemic lesion on the left anterior occipital cortex. Control imaging studies six months later did not show changes in the lesion.


Subject(s)
Humans , Male , Middle Aged , Cerebral Infarction/complications , Hemianopsia/etiology , Visual Cortex , Visual Fields , Visual Field Tests , Hemianopsia/diagnosis , Magnetic Resonance Imaging , Syndrome , Vision, Monocular
5.
Rev. chil. med. intensiv ; 19(1): 21-23, 2004. ilus
Article in Spanish | LILACS | ID: lil-396322

ABSTRACT

El síndrome del "hombre en el barril" se refiere al cuadro clínico de paresia braquial proximal bilateral, que es habitualmente secundaria a una hipotensión arterial sistémica con hipoperfusión encefálica, resultando en una isquemia de zonas limítrofes. Reportamos el caso de un hombre de 57 años, con paresia braquial proximal bilateral después de una cirugía biliar debido a una colangitis. La difusión en resonancia magnética mostró lesiones hiperintensas en la zona correspondiente al límite entre los territorios de las arterias cerebrales media y anterior derechas.


Subject(s)
Humans , Male , Middle Aged , Cholangitis/surgery , Ischemia/complications , Paraparesis/etiology , Paresis/etiology , Cholecystectomy
6.
Rev. chil. med. intensiv ; 19(4): 202-205, 2004. ilus
Article in Spanish | LILACS | ID: lil-418305

ABSTRACT

El síndrome de regresión espectacular de la isquemia encefálica (spectacular shrinking deficit) corresponde a la isquemia hemisférica encefálica que se resuelve en forma espontánea y deja un déficit neurológico residual mínimo o nulo. Reportamos el caso de una mujer de 86 años con un síndrome de isquemia hemisférica izquierda súbito y resolución clínica espontánea completa en pocas horas. El estudio con resonancia magnética de encéfalo y angiorresonancia mostró múltiples infartos pequeños en el territorio de la arteria cerebral media izquierda y oclusión completa de la arteria carótida interna izquierda.


Subject(s)
Humans , Female , Intracranial Embolism/etiology , Brain Ischemia/diagnosis , Brain Ischemia/etiology , Diagnostic Imaging/methods , Neurologic Examination , Remission, Spontaneous
7.
Biol. Res ; 29(4): 361-7, 1996.
Article in English | LILACS | ID: lil-228528

ABSTRACT

Adults Sprague-Dawley rats were implanted with porous hydroxyapatite (Interpore 200), following a procedure different from that of Kawaguchi et al (1992). Instead of implanting hydroxyapatite (Ha) in periodontal osseus defects, we introduced Ha-implants in the hypodermis of rats. Animals were sacrificed on days 30, 90 and 150 (six in each stage). The interface between the Ha and connective tissue was studied by transmission electron microscopy, with the aim of understanding the biocompatibility and mechanisms of union of both parts. The connective tissue reaction to the Ha implant was characterized by fibrovascular proliferation, with abundant fibroblasts, macrophages, multinucleated giant cells, and by the formation of a capsule surrounding the implant. The multinucleated giant cells were observed in the interface along all stages and exhibited: (a) a progressive increase in mitochondria, ribosomes, rough endoplasmic reticulum and vesicles containing particles of Ha; and b) an electronlucent material of variable aspect in vesicles contained in their cytoplasmic expansions. The prominent cytologic aspects of the multinucleated giant cells in the juxta-Ha zone may indicate that both, the biocompatibility and the intimate union between connective tissue and Ha, are strongly dependent on the presence of these cells


Subject(s)
Animals , Rats , Connective Tissue/ultrastructure , Durapatite , Prostheses and Implants , Biocompatible Materials , Giant Cells/ultrastructure , Rats, Sprague-Dawley , Skin , Time Factors
8.
Odontol. chil ; 43(1): 45-8, abr. 1995. ilus
Article in Spanish | LILACS | ID: lil-193874

ABSTRACT

El tejido conectivo (T.Co.) de rata (control) y T.Co. que habían recibido implantes de Ha y PTFE por 150 días, fue sometido a electroforesis unidimensional mediante técnica del dodecil sulfato de sodio-gel de poliacrilamida (SDS-PAGE). El perfil electroforético de las proteínas solubles extraídas desde el T.Co. control después de una centrifugación de 9.000 r.p.m. durante 10 minutos, expresó bandas distribuidas entre los 205 y 21.5 kD. El perfil del T.Co. con HA expresó 26 bandas, distribuidas entre los mismos rangos del control (205 y 21.5 kD). Además ofreció 8 banda no expresadas en el control: a los 102, 89, 83, 60, 50, 45.5, 38, y 34.5 kD. Las 7 bandas notorias del control, también se expresaron en el T.Co. con HA, aunque disminuidas, con excepción de la banda de los 49 kD, que apareció más gruesa. El perfil del T.Co. con PTFE expresó 21 bandas, entre los mismos rangos de los casos anteriores. Ofreció además 5 bandas no presentes en el control: 102, 89, 45.5, 38 y 34.5 kD. Al igual que las HA, las 7 bandas notorias del control se expresaron, aunque disminuidas, con excepción de la banda de los 49 kD, que se mostró aún más ancha que en la HA. Se discuten los resultados que, al correlacionarlos con el aspecto microscópico del T.Co. tratado, se podría inferir que la aparición de estas otras proteínas estaría ligada primordialmente a la presencia de las nuevas poblaciones celulares (células gigantes multinucleadas, macrófagos, fibroblastos) presente en la zona del implante


Subject(s)
Animals , Rats , Connective Tissue/ultrastructure , Electrophoresis , Hydroxyapatites/therapeutic use , Polytetrafluoroethylene/therapeutic use , Rats, Sprague-Dawley
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