Objective To explore the value of the clinical application forstep-by-step down intracranial pressure and Laparoscopy-assisted ventriculoperitoneal shunt treatment of hydrocephalus.Methods 233 patients with hydrocephalus were treated by ventriculoperitoneal shunt,of whom 63 underwent laparoscopic assisted surgery,the same time directly laparotomy incision ventriculoperitoneal shunting has 170 cases. Postoperative step-down method was used,Statistical analysis of the operative time,the average hospital stay...