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6.
Rev. lab. clín ; 12(4): 171-174, oct.-dic. 2019. ilus
Artigo em Espanhol | IBECS | ID: ibc-187315

RESUMO

La leucemia/linfoma de células T del adulto es una neoplasia de linfocitos T causada por el retrovirus humano HTLV-1, con manifestaciones sistémicas y cutáneas muy variables. El HTLV-1 afecta a más de 5-10 millones de personas en el mundo y su distribución geográfica en zonas endémicas se encuentra íntimamente ligada a la prevalencia de leucemia/linfoma de células T del adulto. Existen distintas variantes en función de su presentación clínica siendo las de peor pronóstico la aguda y el linfoma. El diagnóstico diferencial presenta dificultades debido a la inespecificidad de los síntomas. En el laboratorio de análisis clínicos la sospecha diagnóstica es mediante el estudio citológico en sangre periférica con la observación de células características del leucemia/linfoma de células T del adulto


Adult T-cell leukaemia/lymphoma is a mature peripheral T-cell leukaemia of adults associated with infection by the human retrovirus HTLV-1 that presents with highly variable systemic and cutaneous manifestations. HTLV-1 is estimated to affect at least 5-10 million people worldwide, and its geographic distribution in endemic regions is closely related to ATLL prevalence. Adult T-cell leukaemia/lymphoma is classified into different clinical types according to its clinical characteristics, with acute and lymphomatous types having the worst prognosis. Differential diagnosis of adult T-cell leukaemia/lymphoma can be difficult due to the non-specific symptoms in affected individuals. The Clinical Analysis laboratory can help initiate the diagnosis by visualising pathognomonic cells for adult T-cell leukaemia/lymphoma in a peripheral smear


Assuntos
Humanos , Feminino , Pessoa de Meia-Idade , Leucemia-Linfoma de Células T do Adulto/diagnóstico , Vírus Linfotrópico T Tipo 1 Humano/isolamento & purificação , Linfócitos T/classificação , Análise Química do Sangue/métodos , Antivirais/uso terapêutico
7.
Enferm. infecc. microbiol. clín. (Ed. impr.) ; 35(7): 441-443, ago.-sept. 2017. tab, graf
Artigo em Espanhol | IBECS | ID: ibc-165242

RESUMO

Recientemente hemos documentado un caso de paraparesia espástica tropical por HTLV-I en un paciente de nacionalidad española. Este retrovirus infrecuente en Europa rara vez produce sintomatología, pero cuando lo hace supone un grave problema sanitario. Aquí presentamos dicho caso y discutimos situaciones clínicas que justifiquen su detección. Se analizaron las peticiones de cribado de HTLV que recibimos durante 2014-2015 (n=123). El algoritmo diagnóstico fue: 1) Enzimoinmunoanálisis, 2) Hibridación reversa y 3) PCR de ADN proviral. Los resultados mostraron diversas situaciones de cribado de HTLV, destacando el estudio de paraparesia (22%). Se detectaron 7 casos de infección por HTLV-I: 5 pacientes de zona endémica, un paciente VIH+ y por último el caso de paraparesia mencionado. La vigilancia de HTLV-I en regiones no endémicas supone un reto sanitario al no estar bien establecido su balance coste-beneficio. Este caso apoya la inclusión de HTLV-I dentro del diagnóstico diferencial de paraparesia espástica de evolución insidiosa (AU)


We have recently documented a case of tropical spastic paraparesis by HTLV-I in a Spanish patient. HTLV-I infection is rare in Europe, and hardly ever is accompanied by symptoms, but if it does it could trigger a major health issue. This case is presented here, as well as a discussion on the situations in which HTLV-I detection is justified. An analysis was made of the HTLV diagnostic requests at our centre during 2014-2015 (n=123). The diagnostic algorithm was: 1) Enzyme immunoassay, 2) Reverse hybridization, and 3) Proviral DNA detection by PCR. The results showed several situations of HTLV screening, emphasising those related to paraparesis (22%). Seven cases of HTLV-I infection were found: five in patients from endemic regions, one in an HIV-infected patient, and the case of TSP mentioned above. HTLV-I surveillance in non-endemic regions is a challenging issue, as the cost-benefit ratio is not well-established. This case report emphasises the importance of including HTLV within the differential diagnosis of insidious spastic paraparesis (AU)


Assuntos
Humanos , Masculino , Adulto , Paraparesia Espástica Tropical/epidemiologia , Vírus Linfotrópico T Tipo 1 Humano/isolamento & purificação , Vírus Linfotrópico T Tipo 1 Humano/patogenicidade , Infecções por HTLV-I/microbiologia , Programas de Rastreamento/métodos
9.
An. pediatr. (2003, Ed. impr.) ; 81(2): 69-76, ago. 2014. tab
Artigo em Espanhol | IBECS | ID: ibc-126012

RESUMO

INTRODUCCIÓN: En el ańo 2009 se crea en nuestro centro una Consulta de Patología Importada. El objetivo de este trabajo es conocer su aportación en cuanto a capacidad, calidad asistencial y docencia ofrecida. PACIENTES Y MÉTODOS: Estudio retrospectivo entre 2009 y 2011 donde se analizan: a) desarrollo del conocimiento mediante la valoración de protocolos y publicaciones realizadas, así como la docencia impartida; y b) capacidad y calidad asistencial ofrecida mediante el análisis de los pacientes atendidos, la adecuación a los protocolos y la accesibilidad a la consulta. Se clasifican los pacientes atendidos en 3 grupos: grupo 1 cribado del paciente inmigrante; grupo 2 consulta tras viaje a zona tropical o subtropical; grupo 3 cribado de enfermedad importada de transmisión vertical. RESULTADOS: Se han desarrollado y difundido en la web de la unidad 6 protocolos y 5 publicaciones científicas. Se han atendido 316 pacientes: 191 incluidos en el grupo 1 (29 adoptados y 162 inmigrantes); 57 en el grupo 2 (94,7% Visiting Friends and Relatives y 81,5% sin consulta previaje), que acudieron principalmente por clínica gastrointestinal (52,6%) y fiebre (43,8%); y 68 en el grupo 3 con riesgo de infección importada de transmisión vertical (62 Trypanosoma cruzi, 1 virus linfotrópico T humano y 5 Plasmodium spp.). La adecuación global a los protocolos disponibles fue del 77,1%. DISCUSIÓN: Las unidades de patología infecciosa deben adaptarse a la realidad de la población que atienden, siendo flexibles en su estructura. Es imprescindible la valoración periódica de la calidad asistencial ofrecida, así como la valoración en la rentabilidad de los estudios complementarios a realizar (AU) - es INTRODUCTION: An Imported Diseases Clinic was created in the hospital in 2009. The aim of this study was to asses its contribution in terms of capacity, quality of care and teaching offered. PATIENTS AND METHODS: A retrospective study was conducted from 2009 to 2011, analyzing: A) development of knowledge by means of protocols and publications created, and subject taught; B) capacity and quality of care offered by the analysis of patients seen, the adequacy of the protocols and accessibility.The patients were classified into 3 groups. Group 1: immigrant patient screening, group 2: patient consultation after tropical or sub-tropical travel, group 3: screening of vertical transmission of imported disease. RESULTS: Six protocols have been developed and disseminated on the unit website, as well as 5 scientific publications. A total of 316 patients were evaluated: 191 included in group 1 (29 Adopted and 162 Immigrants), 57 in group 2 (94.7% Visiting Friends and Relatives and 81.5% without a pre-travel consultation). They consulted due to, gastrointestinal symptoms (52.6%) and fever (43.8%), with 68 included in group 3 at risk of imported disease by vertical transmission (62 Trypanosoma cruzi, 1 Human T Lymphotropic Virus and 5 Plasmodium spp.). The overall adherence to the protocols was about 77.1%. DISCUSSION: Infectious Diseases Units must adapt to the reality of the population and be flexible in its structure. Periodic assessment of the quality of care offered is essential, as well as an evaluation on the need for additional studies


INTRODUCTION: An Imported Diseases Clinic was created in the hospital in 2009. The aim of this study was to asses its contribution in terms of capacity, quality of care and teaching offered. PATIENTS AND METHODS: A retrospective study was conducted from 2009 to 2011, analyzing: A) development of knowledge by means of protocols and publications created, and subject taught; B) capacity and quality of care offered by the analysis of patients seen, the adequacy of the protocols and accessibility.The patients were classified into 3 groups. Group 1: immigrant patient screening, group 2: patient consultation after tropical or sub-tropical travel, group 3: screening of vertical transmission of imported disease. RESULTS: Six protocols have been developed and disseminated on the unit website, as well as 5 scientific publications. A total of 316 patients were evaluated: 191 included in group 1 (29 Adopted and 162 Immigrants), 57 in group 2 (94.7% Visiting Friends and Relatives and 81.5% without a pre-travel consultation). They consulted due to, gastrointestinal symptoms (52.6%) and fever (43.8%), with 68 included in group 3 at risk of imported disease by vertical transmission (62 Trypanosoma cruzi, 1 Human T Lymphotropic Virus and 5 Plasmodium spp.). The overall adherence to the protocols was about 77.1%. DISCUSSION: Infectious Diseases Units must adapt to the reality of the population and be flexible in its structure. Periodic assessment of the quality of care offered is essential, as well as an evaluation on the need for additional studieS


Assuntos
Humanos , /epidemiologia , Malária/epidemiologia , Doença de Chagas/epidemiologia , Infecções por Deltaretrovirus/epidemiologia , /estatística & dados numéricos , Estudos Retrospectivos , Plasmodium/isolamento & purificação , Trypanosoma cruzi/isolamento & purificação , Vírus Linfotrópico T Tipo 1 Humano/isolamento & purificação , Emigrantes e Imigrantes/estatística & dados numéricos , Transmissão Vertical de Doenças Infecciosas/estatística & dados numéricos , Triagem Neonatal
11.
Arch. Soc. Esp. Oftalmol ; 87(2): 44-46, feb. 2012. ilus
Artigo em Espanhol | IBECS | ID: ibc-97619

RESUMO

Caso Clínico: Se presenta el caso de una mujer de 66 años con uveítis intermedia bilateral y debilidad progresiva de miembros inferiores. En estudio serológico se detecta infección por virus linfotropo humano de células T tipo 1 (VLHT-1), siendo diagnosticada la paciente de paraparesia espástica tropical y uveítis intermedia por VLHT-1. La paciente evolucionó favorablemente con tratamiento corticoideo oral. Discusión: Se comenta la clínica y la epidemiología de la infección por VLHT-1. Se recomienda la realización de serología para el virus en uveítis intermedias no filiadas en inmigrantes de áreas endémicas o con síntomas neurológicos(AU)


Case Report: The case of a 66-year-old woman with intermediate uveitis in both eyes and progressive weakness of lower limbs is reported. A human T-lymphotropic virus type 1 (HTLV-1) infection was detected in the serological study, with the patient being diagnosed with tropical spastic paraparesis and HTLV-1 intermediate uveitis. The patient made good progress with oral steroid treatment. Discussion: The clinical and epidemiological aspects of HTLV-1 infection are discussed. We recommend a serological determination of the virus in intermediate uveitis of unknown origin in people from endemic areas or with neurological symptoms(AU)


Assuntos
Humanos , Feminino , Idoso , Uveíte Intermediária/microbiologia , Vírus Linfotrópico T Tipo 1 Humano/isolamento & purificação , Paraparesia Espástica Tropical/complicações , Infecções por Retroviridae/complicações
19.
Enferm. emerg ; 11(1): 13-15, ene.-mar. 2009. tab
Artigo em Inglês | IBECS | ID: ibc-90794

RESUMO

In order to estimate the prevalence of HTLV I/II viral infection in people belonging to aboriginal ethnic groups of the province of Chaco (North-East Argentina), 335 adults aged 15-68 were studied. Of those, 122 belong to the tobas ethnic group and 213 to the wichis. Samples were obtained with the assistance of bilingual social workers who explained the purposes of the study and requested consent for sample drawing. Antibodies against HTLV-I/II were studied with gelatin particle agglutination test, employing a 4 sera pool. In reactive pools the reaction was repeated individually and reactive sera were confirmed with Western blot. Total prevalence of HTLV I/II infection was 0.9% (3/335). Three infected subjects were found in tobas group and confirmed with WB, demonstrating HTLV II infection in all three cases, i.e. a 2.46% prevalence for this ethnic group. Of these 3 cases, 2 were women aged 30 to 40, while the other was a 42-year old man, all of them single. No positive cases were found in the wichi population. Results confirm that HTLV II infection among the tobas is endemic and probably of ancestral origins (AU)


A fin de conocer la prevalencia de infección por virus HTLV I -II en las etnias aborígenes dela provincia del Chaco (Noreste de Argentina), se estudiaron 335 personas de 15-68 años de edad, de las cuales 122 pertenecen a la etnia toba y 213 a la etnia wichi. Para la toma demuestras se trabajó con promotores sociales bilingües quienes ilustraron sobre los propósitos del estudio y solicitaron consentimiento para la extracción de sangre. Se investigó Acs contra HTLV-I/II por test de aglutinación de partículas de gelatina, empleando pooles de 4 sueros. En los pooles reactivos se repitió la reacción en forma individual y los sueros reactivos se confirmaron mediante Western blot. La prevalencia total de infección por HTLV I/II resultó del0,9 % (3/335). Se encontraron 3 sujetos infectados entre los 122 de la etnia toba que fueron confirmados como HTLV II en los tres casos, lo que significa una prevalencia del 2,46 % para esta etnia. De estos 3 casos, 2 fueron mujeres de entre 30 y 40 años y el otro fue un hombre de 42 años, todos solteros. No se hallaron positivos entre la población Wichi. Los resultados obtenidos reafirman que la infección por HTLV II en población toba es de carácter endémico y probablemente de origen ancestral (AU)


Assuntos
Humanos , Infecções por HTLV-I/epidemiologia , Infecções por HTLV-II/epidemiologia , Vírus Linfotrópico T Tipo 1 Humano/isolamento & purificação , Vírus Linfotrópico T Tipo 2 Humano/isolamento & purificação , 50227
20.
Enferm. infecc. microbiol. clín. (Ed. impr.) ; 27(3): 165-167, mar. 2009. tab
Artigo em Espanhol | IBECS | ID: ibc-61352

RESUMO

Introducción: estimar la seroprevalencia de infección por Trypanosoma cruzi y por el virus linfotrópico humano (HTLV) en mujeres gestantes latinoamericanas. Métodos: estudio serológico en mujeres gestantes latinoamericanas que acudieron a la consulta de fisiopatología fetal de un hospital español desde enero de 2006 hasta junio de 2007. Resultados: de las 229 gestantes estudiadas, 4 fueron positivas frente a T. cruzi (1,75%; intervalo de confianza [IC] del 95%, 0,68¿4,4): 2 de Bolivia (13,33%; IC del 95%, 3,73¿37,88) y 2 de Paraguay (11,76%; IC del 95%, 3,29¿34,33). Ninguna mujer presentó anticuerpos frente al HTLV-1 (IC del 95%, 0¿1,6) y 2 presentaron anticuerpos frente al HTLV-2 (0,87%; IC del 95%, 0,24¿3,12). Conclusiones: una proporción apreciable de las gestantes inmigrantes latinoamericanas presenta anticuerpos frente a T. cruzi. La seroprevalencia frente a HTLV es baja (AU)


Introduction: To estimate the seroprevalence of infection by Trypanosoma cruzi and human T lymphotropic virus (HTLV) in pregnant Latin American women. MethodsSerological survey carried out in pregnant Latin American women attending the antenatal care clinic of a Spanish hospital from January 2006 to June 2007. Results: Of the 229 women enrolled, 4 had antibodies against T. cruzi (1.75%; 95% confidence interval [95% CI], 0.68¿4.4); 2 of these women came from Bolivia (13.33%; 95% CI, 3.73¿37.88) and the other 2 from Paraguay (11.76%; 95% CI, 3.29¿34.33). None of the women had anti-HTLV-1 antibodies (95% CI, 0¿1.6), and 2 had HTLV-2 antibodies (0.87; 95% CI, 0.24¿3.12). Conclusions: A notable percentage of pregnant immigrant women from Latin American had T. cruzi infection. The seroprevalence of HTLV infection is low (AU)


Assuntos
Humanos , Feminino , Gravidez , Adulto , Trypanosoma cruzi/isolamento & purificação , Vírus Linfotrópico T Tipo 1 Humano/isolamento & purificação , Programas de Rastreamento , Complicações Infecciosas na Gravidez/sangue , Doença de Chagas/epidemiologia , Doença de Chagas/sangue , Infecções por HTLV-I/sangue , Infecções por HTLV-I/epidemiologia , Trypanosoma cruzi/patogenicidade , Vírus Linfotrópico T Tipo 1 Humano/patogenicidade , Complicações Infecciosas na Gravidez/epidemiologia , América Latina/epidemiologia , Diagnóstico Pré-Natal , Estudos Soroepidemiológicos
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