RESUMO
Psoriatic arthritis (PsA) is a chronic inflammatory arthritis associated with psoriasis, characterized by heterogeneous clinical manifestations and variable disease progression. Ultrasonography has emerged as a valuable tool in the diagnosis and monitoring of PsA, providing real-time visualization of joint and soft tissue abnormalities. This review highlights recent advancements in ultrasonographic techniques for the assessment of PsA, including the identification of typical features, the role of power Doppler imaging in detecting active inflammation, and the potential of ultrasound for guiding treatment decisions. Additionally, we discuss the utility of ultrasound in assessing treatment response and monitoring disease progression in patients with PsA, with a focus on novel imaging modalities. By elucidating the evolving role of ultrasonography in PsA management, this article aims to enhance clinicians' understanding of its utility in facilitating early diagnosis, optimizing treatment strategies, and improving patient outcomes.
RESUMO
Quantificaçäo do risco mínimo de aquisiçäo de doença de Chagas transfusional através do xenodiagnóstico em doadores de sangue com sorologia positiva. Os autores procuraram quantificar o risco mínimo de aquisiçäo de infecçäo chagásica através de transfusöes, quando o sangue utilizado é proveniente de indivíduos com reaçöes sorológicas positivas para esta parasitose. Para a avaliaçäo da parasitemia, realizaram o xenodiagnóstico em 178 candidatos a doadores de sangue com sorologia positiva para tripanosomíase americana. A positividade revelada pelo xenodiagnóstico, da ordem de 14 por cento, é interpretada como o risco mínimo de ocorrência de novos casos de infecçäo T. cruzi em indivíduos transfundidos com sangue proveniente de doadores chagásicos.