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1.
JBJS Case Connect ; 13(3)2023 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-37531445

RESUMO

CASE: We present the case of a 47-year-old paraplegic woman who underwent resection of an intermediate-grade chondrosarcoma in the proximal ulna, which was initially reconstructed with an osteoarticular allograft. However, after more than 25 years without complications, she sustained an intra-articular fracture of the allograft, which was then successfully treated using a vascularized medial femoral condyle (MFC) flap and anterolateral thigh flap. The patient has subsequently recovered her baseline elbow function, has no pain, and can use her wheelchair without restrictions. CONCLUSION: Free MFC flaps are viable options to salvage osteoarticular allografts that are affected by intra-articular fractures.


Assuntos
Fraturas Ósseas , Retalhos de Tecido Biológico , Feminino , Humanos , Pessoa de Meia-Idade , Fêmur/cirurgia , Fraturas Ósseas/cirurgia , Aloenxertos , Ulna/cirurgia
2.
Hepatología ; 1(2): 116-133, 2020. ilus, tab
Artigo em Espanhol | LILACS, COLNAL | ID: biblio-1396635

RESUMO

El virus de la hepatitis delta (VHD) es un virus satélite del virus de la hepatitis B (VHB), dado que requiere el antígeno de superficie del VHB (HBsAg) para la producción de partículas virales infecciosas. Se han caracterizado ocho genotipos del VHD, con una distribución geográfica relacionada con la prevalencia de la infección por VHB. Se estima que aproximadamente el 5% de los pacientes con infección crónica por VHB también están infectados con VHD. Se han descrito dos tipos de infección: la coinfección simultánea por VHB y VHD, y la superinfección con VHD en un paciente previamente infectado por VHB, esta última asociada a una mayor morbilidad y mortalidad por falla hepática aguda. La infección se diagnostica en nuestro medio con la determinación de IgM contra el VHD, acompañada idealmente de la carga viral. Aunque el tratamiento de elección es la terapia con interferón alfa pegilado, en el momento se están evaluando otros medicamentos antivirales en ensayos clínicos, con resultados alentadores, teniendo en cuenta el efecto observado en la carga viral del VHD y/o del VHB en los pacientes. La presente revisión tiene como objetivo incluir temas como la biología del virus, la epidemiología, las características clínicas, el diagnóstico y el tratamiento en la infección por VHD.


Hepatitis delta virus (HDV) is a satellite virus of hepatitis B virus (HBV), as it requires the HBV surface antigen (HBsAg) for the production of infectious viral particles. Eight HDV genotypes have been characterized with a geographic distribution associated with the prevalence of HBV infection. It is estimated that approximately 5% of patients with chronic HBV infection are also infected with HDV. Two types of infection have been described: coinfection, by simultaneously contracting HBV and HDV infection, and superinfection, by contracting HDV when chronically infected with HBV, the latter associated with increased morbidity and mortality from acute liver failure. Anti-HDV IgM is used to diagnose the infection, ideally together with the detection of HDV-RNA. Although the treatment of choice is pegylated interferon alpha, other antiviral drugs are currently being evaluated in clinical trials, with encouraging results, in terms of their effect on HDV and/or HBV viral load in patients. This review aims to include topics such as virus biology, epidemiology, clinical manifestations, diagnosis, and treatment in HDV infection.


Assuntos
Humanos , Vírus Delta da Hepatite , Vírus da Hepatite B , Epidemiologia , Diagnóstico , Tratamento Farmacológico
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