Shunting the ventricular fluid to a body cavity out side the cranium is the preferred method of treatment of progressive hydrocephalus of whatever cause. The distal end of the shunt should be in the peritoneal cavity or in the right atrium by way of the jugular vein and superior vena cava. The advantages of peritoneal over atrial placement of the distal catheter are: avoidance of cardiopulmonary complications: faster and simpler placement of the distal catheter; space to place a longer distal catheter, prolonging the interval before revision. A series of 173 extracranial cerebrospinal fluid shunts (CSF) performed between 1978 and 1986 for hydrocephalus in children is reviewed. Ventriculoperitoneal shunt was used essentially. The most common complications we catheter obstruction peritoneal and ventricular.