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    Validação externa do escore Villalta traduzido para português brasileiro em pacientes com trombose venosa profunda prévia e sintomas compatíveis com síndrome pós-trombótica
    (Universidade Federal de São Paulo (UNIFESP), 2021) Avila, Rafael Bernardes De [UNIFESP]; Flumignan, Ronald Luiz Gomes [UNIFESP]; Universidade Federal de São Paulo
    Objective: We sought to systematically translate the Villalta Score from the English language into Brazilian Portuguese, and to assess the external validation when applied to a population with at least 6 months of previous diagnosis of deep vein thrombosis and with compatible symptoms of post-thrombotic syndrome; to compare the ultrasound findings with the severity of post-thrombotic syndrome; and to develop a digital informative application about the post-thrombotic syndrome. Methods: We systematically translated the original Villalta score into Brazilian Portuguese. Fifty participants who underwent two outpatient visits were evaluated using the translated Villalta Score. We assessed its intra-rater and inter-rater agreement, comparing the original Villalta Score versus Brazilian Portuguese Villalta Score; Brazilian Portuguese Villalta Score versus a widely used scale for chronic venous insufficiency, the CEAP clinical component, and the clinical post-thrombotic syndrome severity versus the duplex ultrasonography findings. Results: The intraobserver evaluation of Villalta Score grades had a simple Kappa coefficient of 0.73, and the simple Kappa coefficient interobserver for Villalta Score grades was 0.67. When Villalta Score was compared to CEAP clinical component, it established an excelent Pearson correlation of aproximately 0.9. There was difference among Villalta Score values compared to duplex ultrasonography initial deep vein thrombosis territory, with femoropopliteal showing higher values than distal veins. Higher Villalta Score values were correlated to duplex ultrasonography venous recanalization and reflux. Conclusions: There was a good interobserver and intraobserver agreement when the Brazilian Portuguese Villalta Score was applied; and when compared to CEAP clinical component, Villalta Score showed an excelent correlation. When Villalta Score grading was compared to duplex ultrasonography characteristics, there were statistical and clinical correlation, with presence of reflux and recanalization showing higher Villalta Score values. The application was developed and widely available via the internet.