In the period 1972–81, 572 hydrocephalic children were treated using the Upadhyaya shunt valve, One hundred and seventys-even of these patients needed a total of 350 shunt revisions. Indications for revisions were; shunt blockage 245 (70% of total revisions) shunt infections 40 (11.5%) catheter disconnections/fractures 19 (5.5%) and intvacranial hemorrhage 9 (2.5%). Intracranial bleeds were more commonly seen in hydrocephalus associated with tuberculous meningitis and were invariably fatal. Infrequent complications were CSF leak, shunt extrusion, valve incompetence, pulmonary hypertension and pleural effusion. Thirty-nine patients died. Overall results of the Upadhyayay shunt valve compare favourably with other reported series.