Pressure-adjustable shunt in treatment of hydrocephalus associated with congenital intracranial anomalous venous return

Objective To investigate the value of Codman Hakim pressure - adjustable shunt in the treatment of hydrocephalus associated with congenital intracranial anomalous venous return.Methods 2 patients whose diagnosis were confirmed by CT,MRI,MRV and DSA and programmable ventriculoperitoneal shunting was given.Results The pressure of 2 cases of patients undergoing shunt valve was set to 200 mmH2O in operation and the pressure was reduce gradually.The patients developed symptoms of low intracranial pressure in different degrees when the pressure was reduced to 180 mmH2O.The symptoms were alleviated after the pressure was increased.The mental and motor function of 2 patients were improved significantly and CT examinations showed decreased ventricles.Conclusious The hydrocephalus associated with congenital intracranial anomalous venous return is rare and the treatment experience is not enough.Pressure - adjustable shunting is the best treatment for this kind of hydrocephalus.The pressure should be adjusted several times for a long time to achieve a suitable individual pressure gradually. Key words: Anomalous venous return ;  Hydrocephalus ;  Pressure- adjustable shunt ;