RESUMEN
INTRODUCTION: Transfusion-dependent anemia and iron overload are associatedwith reduced survival in myelodysplastic syndrome (MDS). This cross-sectional study aimed to evaluate the prevalence of hepatic and cardiac overload in patients with MDS as measured by T2* magnetic resonance imaging (MRI), and its correlation with survival. METHODS: MDS or chronic myelomonocytic leukemia patients had iron overload evaluated by T2* MRI. HIO was considered when hepatic iron concentration ≥ 2 g/mg. Cardiac iron overload was considered with a T2*-value < 20 ms. RESULTS: Among 71 patients analyzed, median hepatic iron concentration was 3.9 g/mg (range 0.9-16 g/mg), and 68%of patients had hepatic iron overload. Patients with hepatic iron overload had higher mean ferritin levels (1182 ng/mL versus 185 ng/mL, p < 0.0001), transferrin saturation (76% versus 34%, p < 0.0001) and lower survival rates. Median cardiac T2*value was 42 ms (range 19.7-70.1 ms), and only one patienthad a T2* value indicative of cardiac iron overload. CONCLUSIONS: Hepatic iron overload is found in two thirds of patients, even in cases without laboratory signs of iron overload. Hepatic iron overload by T2* MRI is associated with a decreased risk of survival in patients with MDS.
Asunto(s)
Sobrecarga de Hierro/diagnóstico , Sobrecarga de Hierro/etiología , Hígado/diagnóstico por imagen , Hígado/patología , Imagen por Resonancia Magnética , Síndromes Mielodisplásicos/complicaciones , Miocardio/patología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Brasil , Transformación Celular Neoplásica , Estudios Transversales , Femenino , Humanos , Incidencia , Sobrecarga de Hierro/epidemiología , Sobrecarga de Hierro/metabolismo , Hígado/metabolismo , Imagen por Resonancia Magnética/métodos , Masculino , Persona de Mediana Edad , Síndromes Mielodisplásicos/diagnóstico , Síndromes Mielodisplásicos/mortalidad , Miocardio/metabolismo , Prevalencia , Evaluación de Síntomas , Adulto JovenRESUMEN
Artículo breve donde se referencia el origen de la Sociedad de Dermatología, los eventos más significativos en los distintos períodos y el surgimiento de la Revista Argentina de Dermatología