Arch Dis Child 58:385-386 doi:10.1136/adc.58.5.385
  • Research Article

Hyponatraemia caused by repeated cerebrospinal fluid drainage in post haemorrhagic hydrocephalus.


Three hyponatraemic infants had post-haemorrhagic hydrocephalus which was treated by repeated drainage of cerebrospinal fluid. Each required oral sodium supplements. The concentration of sodium in the cerebrospinal fluid was such that as much as 3 mmol of sodium could have been removed with each ventricular tap. Serum sodium concentrations should be monitored closely in any infant requiring regular drainage of cerebrospinal fluid.