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1.
Ann Hematol ; 98(1): 67-72, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-30255313

RESUMEN

Various infectious diseases can hyper-stimulate the immune system, causing hemophagocytic syndrome (HPS). Little is known regarding the accuracy of diagnostic criteria and epidemiological triggering factors in the acquired immunodeficiency syndrome (AIDS) setting. We investigated the major infectious disease triggers of HPS in patients living with human immunodeficiency virus (HIV)/AIDS and determined the accuracy of bone marrow aspiration (BMA). The inclusion criteria were (i) confirmed HIV diagnosis, (ii) bone marrow aspiration, and (iii) a minimum of four HPS criteria. Patients were further classified into those with four presumed HPS criteria, or ≥ 5 confirmed criteria. The disease triggers, accuracy of bone marrow aspiration, and prognosis markers were examined. Presumed HPS was observed in 15/36 patients (41%), and confirmed HPS in 58% (n = 21). The major etiological triggers were infection with Mycobacterium (34%), Cytomegalovirus (14%), Cryptococcus neoformans (11%), and hematological or tumoral disease (11%). BMA demonstrated 93% specificity on screening diagnosis (odds ratio [OR] 12.7, 95% confidence interval [CI] 1.4-115.1, P = 0.01). Ferritin > 5000 ng/mL correlated with probability of death in univariate analysis (OR 6.00, 95% CI 1.33-27.05, P = 0.02). Ferritin performance as test of death probability presented area under the curve as 0.74 (95% CI 0.56-0.91, P = 0.016). However, neither cluster of differentiation for lymphocyte count nor HIV viral load correlated with patient deaths. Mycobacterium spp. and Cytomegalovirus were the main factors triggering HPS, followed by Cryptococcus neoformans, and hematological and tumoral diseases. High ferritin levels were associated with increased death probability. High specificity was noted with BMA.


Asunto(s)
Síndrome de Inmunodeficiencia Adquirida , Linfohistiocitosis Hemofagocítica , Síndrome de Inmunodeficiencia Adquirida/epidemiología , Síndrome de Inmunodeficiencia Adquirida/microbiología , Síndrome de Inmunodeficiencia Adquirida/patología , Síndrome de Inmunodeficiencia Adquirida/virología , Adulto , Médula Ósea/metabolismo , Médula Ósea/microbiología , Médula Ósea/patología , Médula Ósea/virología , Criptococosis/epidemiología , Criptococosis/microbiología , Criptococosis/patología , Criptococosis/virología , Cryptococcus neoformans , Citomegalovirus , Infecciones por Citomegalovirus/epidemiología , Infecciones por Citomegalovirus/microbiología , Infecciones por Citomegalovirus/patología , Infecciones por Citomegalovirus/virología , Femenino , VIH-1 , Humanos , Linfohistiocitosis Hemofagocítica/epidemiología , Linfohistiocitosis Hemofagocítica/microbiología , Linfohistiocitosis Hemofagocítica/patología , Linfohistiocitosis Hemofagocítica/virología , Masculino , Mycobacterium , Infecciones por Mycobacterium/epidemiología , Infecciones por Mycobacterium/microbiología , Infecciones por Mycobacterium/patología , Infecciones por Mycobacterium/virología , Estudios Retrospectivos
2.
BMJ Open ; 9(11): e027207, 2019 11 25.
Artículo en Inglés | MEDLINE | ID: mdl-31772079

RESUMEN

INTRODUCTION: An ongoing outbreak of yellow fever (YF) has been reported in Brazil with 1261 confirmed cases and 409 deaths since July 2017. To date, there is no specific treatment available for YF. Recently published papers describing in vitro and animal models suggest a potential effect of antiviral drugs (approved for the treatment of hepatitis virus) against flaviviruses, including YF. The primary aim of this study is to analyse the effect of sofosbuvir on viral kinetics and clinical outcomes among patients presenting with YF. This is a multicentre open-label randomised controlled trial with 1:1 individual allocation, stratified by severity and by recruiting centre. METHODS AND ANALYSIS: Adults with suspected or confirmed YF infection and symptoms lasting up to 15 days are screened. Eligible and consenting patients are randomised to receive oral sofosbuvir 400 mg daily for 10 days or to receive standard clinical care. Viral kinetics are measured daily and the reduction in YF plasma viral load from the sample at inclusion to 72 hours after randomisation will be compared between active and control groups. Clinical outcomes include severity meeting criteria for intensive care support, liver transplantation, in-hospital mortality and mortality within 60 days. ETHICS AND DISSEMINATION: Ethics approval was obtained at the participating sites and at the national research ethics committee (CAAE 82673018.6.1001.0068). The trial has been submitted for ethical approval at additional potential recruiting centres. Results of the study will be published in journals and presented at scientific meetings. TRIAL REGISTRATION: Brazilian Clinical Trials Registry (RBR-93dp9n).


Asunto(s)
Sofosbuvir/administración & dosificación , Fiebre Amarilla/tratamiento farmacológico , Administración Oral , Adulto , Antivirales/administración & dosificación , Brasil/epidemiología , Brotes de Enfermedades , Relación Dosis-Respuesta a Droga , Femenino , Humanos , Masculino , Tasa de Supervivencia/tendencias , Resultado del Tratamiento , Fiebre Amarilla/epidemiología
3.
Am. j. trop. med. hyg ; 101(3): 705-707, Sept. 2019.
Artículo en Inglés | SES-SP, SES SP - Instituto de Infectologia Emílio Ribas, SES-SP | ID: biblio-1016226

RESUMEN

A 43-year-old man was admitted to the intensive care unit and diagnosed with yellow fever. He presented with refractory bleeding, extreme hyperferritinemia, and multiple organ dysfunction syndrome, requiring renal replacement therapy, mechanical ventilation, and treatment with vasoactive drugs. Because the bleeding did not respond to fresh-frozen plasma administration, the patient received therapeutic plasma exchange, which was accompanied by a marked improvement of the clinical and biochemical parameters, including a significant decline in serum ferritin levels


Asunto(s)
Humanos , Masculino , Adulto , Fiebre Amarilla
4.
Ann. hematol ; 98(1): 67-72, Jan. 2019. ilus, tab
Artículo en Inglés | SES-SP, SES SP - Instituto de Infectologia Emílio Ribas, SES-SP | ID: biblio-1021090

RESUMEN

Various infectious diseases can hyper-stimulate the immune system, causing hemophagocytic syndrome (HPS). Little is known regarding the accuracy of diagnostic criteria and epidemiological triggering factors in the acquired immunodeficiency syndrome (AIDS) setting. We investigated the major infectious disease triggers of HPS in patients living with human immunodeficiency virus (HIV)/AIDS and determined the accuracy of bone marrow aspiration (BMA). The inclusion criteria were (i) confirmed HIV diagnosis, (ii) bone marrow aspiration, and (iii) a minimum of four HPS criteria. Patients were further classified into those with four presumed HPS criteria, or ≥ 5 confirmed criteria. The disease triggers, accuracy of bone marrow aspiration, and prognosis markers were examined. Presumed HPS was observed in 15/36 patients (41%), and confirmed HPS in 58% (n = 21). The major etiological triggers were infection with Mycobacterium (34%), Cytomegalovirus (14%), Cryptococcus neoformans (11%), and hematological or tumoral disease (11%). BMA demonstrated 93% specificity on screening diagnosis (odds ratio [OR] 12.7, 95% confidence interval [CI] 1.4-115.1, P = 0.01). Ferritin > 5000 ng/mL correlated with probability of death in univariate analysis (OR 6.00, 95% CI 1.33-27.05, P = 0.02). Ferritin performance as test of death probability presented area under the curve as 0.74 (95% CI 0.56-0.91, P = 0.016). However, neither cluster of differentiation for lymphocyte count nor HIV viral load correlated with patient deaths. Mycobacterium spp. and Cytomegalovirus were the main factors triggering HPS, followed by Cryptococcus neoformans, and hematological and tumoral diseases. High ferritin levels were associated with increased death probability. High specificity was noted with BMA


Asunto(s)
Humanos , VIH , Infecciones Oportunistas Relacionadas con el SIDA , Linfohistiocitosis Hemofagocítica
5.
Rev. ciênc. méd., (Campinas) ; 16(4/6): 279-285, jun.-dez. 2007. ilus
Artículo en Portugués | LILACS | ID: lil-496097

RESUMEN

A neoplasia primária da bexiga urinária é o tumor mais comum do trato urinário e tem como principal sintoma a hematúria macroscópica. O tipo histológico mais freqüente é o carcinoma de células transicionais. Em 20% dos casos ocorre progressão do tumor com invasão da lâmina própria, o que está associado a um alto índice de metástase por contigüidade, linfática e hematogênica. Neste artigo descreve-se o caso de um paciente de 65 anos com episódios de hematúria recorrente secundária a um carcinoma de células transicionais da bexiga urinária que, devido ao alto grau de indiferenciação e ao estadio avançado, somente foi diagnosticado post mortem, por meio de estudo necroscópico no qual também foi encontrada metástase para coração, na valva aórtica, sítio de metástase ainda não descrito pela literatura.


Bladder cancer is the most common neoplasm of the urinary tract and its main symptom is gross hematuria. The most frequent histological presentation is transitional cell carcinoma and 20% of these cases spread to a thin layer of connective tissue (called lamina propria) which is associated with higher risk of spreading by contiguity and hematogenous and lymph node metastasis. This paper describes a case of a 65-yearold patient with recurring episodes of gross hematuria secondary to transitional cell carcinoma of the bladder. The neoplasm and metastasis to the aortic valve were only diagnosed post mortem during a necropsy, probably because of the poor cell differentiation and advanced stage. Transitional cell carcinoma metastasis to a heart valve has not been previously mentioned in the literature.


Asunto(s)
Humanos , Masculino , Anciano , Autopsia , Metástasis Linfática , Metástasis de la Neoplasia , Neoplasias de la Vejiga Urinaria , Neoplasias Urológicas
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