Characteristic neuroradiologic features in hemorrhagic shock and encephalopathy syndrome.

Hemorrhagic shock and encephalopathy syndrome is a devastating disease, but the pathogenesis remains unclear. The aim of this study was to examine the usefulness of neuroimaging in establishing a diagnosis and elucidating the pathogenesis. We analyzed the neuroradiologic features of 22 patients who fulfilled the Levin criteria. All patients underwent brain computed tomography (CT), and 14 patients underwent brain magnetic resonance imaging (MRI) including diffusion-weighted imaging in 10 patients. Initial CT showed normal findings in 14 of 18 (78%) patients, but subsequently hypodensities appeared in bilateral watershed zones and progressed to whole brain edema. MRI revealed cytotoxic edema, showing hyperintensities in bilateral watershed zones on diffusion-weighted imaging with a low apparent diffusion coefficient. Serial neuroimaging showed characteristic features of a widespread brain ischemic event mainly in watershed zones in hemorrhagic shock and encephalopathy syndrome.

Determinaciòn de TSH para el diagnòstico precoz de hipotiroidismo neonatal: estudios previos a la implementaciòn de un programa de Tsh / Annual reports 1993 / Determination of TSH for early diagnosis of neonatal hipothyroidism: neonatal preliminary studies for the implementation of a neonatal Tsh program

En este trabajo estandarizò la toma de muestra en sangre de cordòn de recièn nacidos por goteo en papel de filtro y se adecuo la tècnica de dosaje de TSH neonatal por el mètodo IRMA, en base a la producciòn local de estandaresw y trazadores, complementados con reactivos NETRIA. Se analizaron 2500 muestras del Centro de Salud N§ 5 y de la Maternidad del Hospital de Clìnicas. El rango de TSH neonatal (Confianza del 95 por ciento), es de 13.6 +/-15.7 microUI/ml, siendo el punto de corte de 30 microUI/ml