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1.
Int J Surg Pathol ; : 10668969241246470, 2024 Apr 24.
Artigo em Inglês | MEDLINE | ID: mdl-38656257

RESUMO

An inflammatory myofibroblastic tumor (IMT) is a rare mesenchymal neoplasm of borderline malignant potential. Nearly half of all IMTs have rearrangement of anaplastic lymphoma kinase (ALK) locus on chromosome 2p23 which can be treated with targeted therapy. Herein, we describe an unusual presentation of IMT involving an anatomical region rarely implicated in this disease process. A 15-year-old male patient came to the ER with dysphagia and coffee ground emesis. On esophagogastroscopy, a nodular luminal obstructing 30 × 50 mm mass in the lower esophagus was found, which was continuous with a large, partially circumferential gastric mass extending from the mid-body to the proximal antrum. Biopsies from esophageal and gastric masses revealed submucosal lesions composed of cytologically bland spindle and epithelioid cells, intermingled with inflammatory infiltrate, for which several immunohistochemical (IHC) stains were performed. The molecular study demonstrated ATIC::ALK fusion. Based on morphological, IHC, and molecular study findings, the diagnosis of ALK-positive IMT was rendered. Because surgical excision was deemed infeasible, the patient was started on ALK-inhibiting therapy with crizotinib. The patient responded well with no evidence of residual or recurrent disease on follow-up imaging or surveillance esophagogastroduodenoscopy. Crizotinib was ultimately discontinued after 10 months of therapy, and the patient continues to undergo surveillance imaging for monitoring of disease burden.

2.
J Minim Invasive Gynecol ; 30(11): 912-918, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37463650

RESUMO

STUDY OBJECTIVE: To determine whether a postoperative 5-day treatment schedule with vaginal metronidazole added to conventional antibiotic prophylaxis with 2 g cefazolin modifies the risk of pelvic cellulitis (PC) and pelvic abscess (PA) after total laparoscopic hysterectomy (TLH). DESIGN: A randomized, controlled, triple-blind, multicenter clinical trial. SETTING: Two centers dedicated to minimally invasive gynecologic surgery in Colombia. PATIENTS: A total of 574 patients were taken to TLH because of benign diseases. INTERVENTION: Patients taken to TLH were divided into 2 groups (treatment group, cefazolin 2 g intravenous single dose before surgery + metronidazole vaginal ovules for 5 days postoperatively, control group: cefazolin 2 g intravenous single dose + placebo vaginal ovules for 5 days postoperatively). MEASUREMENTS AND MAIN RESULTS: The absolute frequency (AF) of PC and PA and their relationship with the presence of bacterial vaginosis (BV) were measured. There was no difference in AF of PC (AF, 2/285 [0.7%] vs 5/284 [1.7%] in the treatment and placebo groups, respectively; risk ratio, 1.75; 95% confidence interval, 0.54-5.65; p = .261), nor for PA (AF, 0/285 [0%] vs 2/289 [0.7%]; p = .159, in the treatment and placebo groups, respectively). The incidence of BV was higher in the metronidazole group than the placebo group (42.5% vs 33.4%, p = .026). CONCLUSION: The use of vaginal metronidazole ovules during the first 5 days in postoperative TLH added to conventional cefazolin prophylaxis does not prevent the development of PC or PA, regardless of the patient's diagnosis of BV.


Assuntos
Laparoscopia , Parametrite , Vaginose Bacteriana , Humanos , Feminino , Metronidazol/uso terapêutico , Abscesso/etiologia , Abscesso/prevenção & controle , Cefazolina/uso terapêutico , Parametrite/tratamento farmacológico , Histerectomia/efeitos adversos , Vaginose Bacteriana/diagnóstico , Vaginose Bacteriana/tratamento farmacológico , Laparoscopia/efeitos adversos , Método Duplo-Cego , Antibacterianos/uso terapêutico
3.
Infectio ; 14(4): 248-256, oct.-dic. 2010. graf, tab
Artigo em Espanhol | LILACS, COLNAL | ID: lil-635650

RESUMO

Objetivo. Caracterizar el fenómeno de la resistencia a los diferentes medicamentos antirretrovirales en pacientes en quienes se practicó el estudio de genotipificación en Colombia, durante el período 2000-2007. Diseño. Descriptivo, retrospectivo y basado en el laboratorio. Métodos. Entre los años 2000 y 2007, se obtuvo la secuencia de los genes de la proteasa y transcriptasa inversa del virus de la inmunodeficiencia humana (VIH) de 650 pacientes presuntamente en tratamiento antirretroviral, procedentes de diferentes regiones de Colombia. Las secuencias se procesaron con el programa Geno2pheno resistance, el cual infiere la resistencia a partir de la secuencia. Resultados. El 82,1% de las cepas virales fue resistente a uno o más medicamentos. La frecuencia de resistencia fue mayor para la lamivudina (55,4%), la nevirapina (54,3%) y el efavirenz (52,6%), y más baja para la estavudina (11,0%). El 45,1% fue resistente a la zidovudina. La resistencia a los inhibidores de proteasa osciló entre 30% y 38%. Se observó que la frecuencia de resistencia va en aumento para los inhibidores de la transcriptasa inversa, pero no para los inhibidores de proteasa. Conclusiones. La frecuencia de resistencia fue mayor en los antirretrovirales con una baja barrera genética y en aquéllos cuyo uso se ha incrementado en los últimos años.


Objective. To characterize the resistance to anti-retroviral drugs in patients subject of genotypic sensitivity testing in Colombia during 2000-2007. Design. Descriptive, retrospective, laboratory based. Methods. Between the years 2000 and 2007 the sequences of the HIV protease and transcriptase genes were obtained from 650 patients presumably under antiretroviral treatment throughout the country. The sequences were processed with the program "geno2pheno resistance", which infers the resistance by using the sequences. The results were statistically analyzed. Results. 82.1% of the viral strains were resistant to one or more drugs. The frequency of resistance was higher for lamivudine (55.4%), nevirapine (54.3%), and efavirenz (52.6%), and lower for stavudine (11.0%). 45.1% were resistant to zidovudine. Resistance to protease inhibitors varied between 30% and 38%. We observed that the frequency of resistance is rising for the reverse transcriptase inhibitors but not for the protease inhibitors. Conclusions. The frequency of resistance was higher for the antiretroviral drugs with a lower genetic barrier and for those which use has increased during these last years.


Assuntos
Humanos , Resistência a Medicamentos , Síndrome da Imunodeficiência Adquirida , HIV , Terapia Antirretroviral de Alta Atividade , Colômbia , Fenômenos Genéticos , Mutação
4.
Alerg. inmunol. clin ; 28(1/2): 22-29, 2010. graf
Artigo em Espanhol | LILACS | ID: lil-614224

RESUMO

En nuestro tranbajo evaluamos parámetros bioquímicos e inflamatorios en 41 pacientes con diabetes tipo dos o no diabéticos con insulino-resistencia (IR) y 49 controles sanos. Todos los participantes se clasificaron de acuerdo al índice de masa corporal (IMC) en obesos (IMC:>30,0), con sobrepeso (IMC: 25,0-29,9) o normales (<25,0). En muestras de suero se midieron lipoproteínas, colesterol, glucosa, proteínas C reactiva (PCR), haptoglobina, aspartato aminotransferasa (ASR), alanina aminotransferasa (ALT), gamma glutamil transferasa (GGT), insulina, interleuquina (IL)-6 y TSH. Se determinó el índice HOMA (Homeostasis Model Assensment). Se observaron incrementos en los valores del índice HOMA en los pacientes diabéticos obesos y con sobrepeso (p<0,001).


Assuntos
Humanos , Masculino , Feminino , Proteínas de Fase Aguda , Diabetes Mellitus , Fígado , Obesidade/imunologia , Proteínas
5.
Medicina (B Aires) ; 64(3): 231-4, 2004.
Artigo em Espanhol | MEDLINE | ID: mdl-15239537

RESUMO

Cases of dengue detected in Buenos Aires City between 1999 and 2000 confirmed the possibility of epidemic outbreaks. The activity of its vector Aedes aegypi was monitored to study the spatial and temporal risk of dengue transmission. Adult oviposition activity of Aedes aegypti showed an heterogeneous spatio-temporal distribution pattern. It was detected between October and May. The vector was detected from spring to fall in the Northern, Western and Southern areas of the city (periphery) and only in summer in the Eastern part (downtown-river). The proportion of infested sites differed between the three periods but the infested areas coincided spatially. Although a spatial and temporal heterogeneity exists, the pattern repeated itself during the three periods suggesting stable dynamics. The not infested areas presented the highest population and employees densities while the areas infested during the three periods the lowest. This might represent an attenuation of the risk, because higher densities do not coincide with higher infestation. From the point of view of the vector the risk of transmission would concentrate between January and March and occupy 50% of the city surface in the periphery.


Assuntos
Aedes/fisiologia , Dengue/transmissão , Reservatórios de Doenças , Insetos Vetores/fisiologia , Animais , Argentina , Humanos , Densidade Demográfica , Medição de Risco , Estações do Ano , População Urbana
6.
Medicina (B.Aires) ; 64(3): 231-234, 2004. ilus
Artigo em Espanhol | LILACS | ID: lil-389553

RESUMO

Los casos de dengue detectados en la Ciudad de Buenos Aires entre 1999 y 2000 confirmaron la posibilidad de brotes epidémicos. Para estudiar el riesgo de transmisión de dengue espacial y temporalmente se midió la actividad de su vector, el mosquito Aedes aegypti. La actividad de ovipostura del vector mostró un patrón de distribución heterogéneo en el tiempo y el espacio. Ocurrió entre octubre y mayo. En las áreas del Norte, Oeste y Sur de la ciudad (periferia) el vector fue detectado entre la primavera y el otoño en tanto que en las áreas del Este (microcentro-río) sólo en el verano. La proporción de sitios infestados varió entre los 3 períodos de estudio, pero las zonas infestadas coincidieron espacialmente. Aunque se observó variación anual y espacial de la infestación, el patrón se repitió durante los 3 años de estudio sugiriendo una dinámica estable. Las áreas de la ciudad no infestadas presentaron las mayores densidades de población y de empleados, mientras que las infestadas durante los 3 períodos presentaron las menores densidades. Esto podría representar una atenuación del riesgo, ya que no coincide la mayor densidad de habitantes con la mayor infestación. El riesgo de transmisión desde el punto de vista del vector se concentraría entre enero y marzo y ocuparía el 50% de la superficie de la ciudad en la periferia.


Assuntos
Humanos , Animais , Aedes/fisiologia , Reservatórios de Doenças , Dengue/transmissão , Insetos Vetores/fisiologia , Argentina , Densidade Demográfica , Medição de Risco , Estações do Ano , População Urbana
7.
Medicina [B.Aires] ; 64(3): 231-234, 2004. ilus
Artigo em Espanhol | BINACIS | ID: bin-3415

RESUMO

Los casos de dengue detectados en la Ciudad de Buenos Aires entre 1999 y 2000 confirmaron la posibilidad de brotes epidémicos. Para estudiar el riesgo de transmisión de dengue espacial y temporalmente se midió la actividad de su vector, el mosquito Aedes aegypti. La actividad de ovipostura del vector mostró un patrón de distribución heterogéneo en el tiempo y el espacio. Ocurrió entre octubre y mayo. En las áreas del Norte, Oeste y Sur de la ciudad (periferia) el vector fue detectado entre la primavera y el otoño en tanto que en las áreas del Este (microcentro-río) sólo en el verano. La proporción de sitios infestados varió entre los 3 períodos de estudio, pero las zonas infestadas coincidieron espacialmente. Aunque se observó variación anual y espacial de la infestación, el patrón se repitió durante los 3 años de estudio sugiriendo una dinámica estable. Las áreas de la ciudad no infestadas presentaron las mayores densidades de población y de empleados, mientras que las infestadas durante los 3 períodos presentaron las menores densidades. Esto podría representar una atenuación del riesgo, ya que no coincide la mayor densidad de habitantes con la mayor infestación. El riesgo de transmisión desde el punto de vista del vector se concentraría entre enero y marzo y ocuparía el 50% de la superficie de la ciudad en la periferia.(AU)


Assuntos
Humanos , Animais , RESEARCH SUPPORT, NON-U.S. GOVT , Dengue/transmissão , Aedes/fisiologia , Insetos Vetores/fisiologia , Reservatórios de Doenças , Densidade Demográfica , População Urbana , Argentina , Medição de Risco , Estações do Ano
8.
Medicina [B Aires] ; 64(3): 231-4, 2004.
Artigo em Espanhol | BINACIS | ID: bin-38689

RESUMO

Cases of dengue detected in Buenos Aires City between 1999 and 2000 confirmed the possibility of epidemic outbreaks. The activity of its vector Aedes aegypi was monitored to study the spatial and temporal risk of dengue transmission. Adult oviposition activity of Aedes aegypti showed an heterogeneous spatio-temporal distribution pattern. It was detected between October and May. The vector was detected from spring to fall in the Northern, Western and Southern areas of the city (periphery) and only in summer in the Eastern part (downtown-river). The proportion of infested sites differed between the three periods but the infested areas coincided spatially. Although a spatial and temporal heterogeneity exists, the pattern repeated itself during the three periods suggesting stable dynamics. The not infested areas presented the highest population and employees densities while the areas infested during the three periods the lowest. This might represent an attenuation of the risk, because higher densities do not coincide with higher infestation. From the point of view of the vector the risk of transmission would concentrate between January and March and occupy 50


of the city surface in the periphery.

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