INTRODUÇÃO. Atualmente, o tratamento da hidrocefalia é realizado principalmente através de uma Derivação ventrículo-peritoneal (DVP). Este estudo tem como objetivo descrever a aplicação da derivação ventrículosinusal retrógrada (DVSR) em pacientes com hidrocefalia após o tratamento cirúrgico de mielomeningocele. MÉTODO. Estudo prospectivo, randomizado e controlado. Foram selecionados consecutivamente 9 pacientes com hidrocefalia após correção cirúrgica de mielomeningocele de janeiro de 2010 a janeiro de 2012. Os pacientes foram submetidos à DVSR ou DVP eletiva. Cinco submetidos à DVSR e 4 à DVP, sendo seguidos por 1 ano com realização trimestral de avaliações clínicas, de imagem e aplicação do Doppler transcraniano. RESULTADOS. Os pacientes tratados com DVSR apresentaram desfechos clínicos semelhantes aos do grupo de DVP. O Doppler mostrou melhora significativa quando comparado o pré-operatório com o pós-operatório. O grupo DVSR apresentou perímetro cefálico significativamente maior que o grupo DVP. O desenvolvimento neuropsicomotor, complicações e desfechos centrados nos pacientes não diferiram entre os grupos. CONCLUSÕES. A técnica cirúrgica da derivação ventrículo-sinusal retrógrada é viável; ela é uma opção alternativa para o tratamento de hidrocefalia / INTRODUCTION. Currently, treatment of hydrocephalus is accomplished primarily through a ventricular-peritoneal shunt (VPS). This study aims to describe the application of retrograde ventricle-sinus shunt (RVSS) in patients with hydrocephalus after surgical treatment of myelomeningocele. METHOD. A prospective, randomized and controlled study. We consecutively enrolled 9 patients with hydrocephalus after surgical repair of myelomeningocele from January 2010 to January 2012. These patients underwent elective RVSS or VPS. Five underwent RVSS and 4 underwent VPS. These patients were followed for one year with quarterly clinical and image evaluations and application of transcranial Doppler. RESULTS. Patients treated with RVSS showed clinical outcomes similar to those of VPS group. Doppler showed significant improvement when comparing preoperative to the postoperative period. RVSS group showed significantly higher cephalic perimeter than VPS group. Neuropsychomotor development, complications and subjective outcomes did not differ between groups. CONCLUSIONS. Surgical technique of retrograde ventricle-sinus shunt is viable; it is an alternative option for the treatment of hydrocephalus

BACKGROUND: The potential pathogenesis between the presence and severity of chronic cerebrospinal venous insufficiency (CCSVI) and its relation to clinical and imaging outcomes in brain parenchyma of multiple sclerosis (MS) patients has not yet been elucidated. The aim of the study was to investigate the relationship between CCSVI, and altered brain parenchyma venous vasculature visibility (VVV) on susceptibility-weighted imaging (SWI) in patients with MS and in sex- and age-matched healthy controls (HC). METHODS: 59 MS patients, 41 relapsing-remitting and 18 secondary-progressive, and 33 HC were imaged on a 3T GE scanner using pre- and post-contrast SWI venography. The presence and severity of CCSVI was determined using extra-cranial and trans-cranial Doppler criteria. Apparent total venous volume (ATVV), venous intracranial fraction (VIF) and average distance-from-vein (DFV) were calculated for various vein mean diameter categories: < .3 mm, .3-.6 mm, .6-.9 mm and > .9 mm. RESULTS: CCSVI criteria were fulfilled in 79.7% of MS patients and 18.2% of HC (p < .0001). Patients with MS showed decreased overall ATVV, ATVV of veins with a diameter < .3 mm, and increased DFV compared to HC (all p < .0001). Subjects diagnosed with CCSVI had significantly increased DFV (p < .0001), decreased overall ATVV and ATVV of veins with a diameter < .3 mm (p < .003) compared to subjects without CCSVI. The severity of CCSVI was significantly related to decreased VVV in MS (p < .0001) on pre- and post-contrast SWI, but not in HC. CONCLUSIONS: MS patients with higher number of venous stenoses, indicative of CCSVI severity, showed significantly decreased venous vasculature in the brain parenchyma. The pathogenesis of these findings has to be further investigated, but they suggest that reduced metabolism and morphological changes of venous vasculature may be taking place in patients with MS.