good morning, see the functions of the shunt is basically help in draining the CSF down its path and back, and r instilled in subjects having a block in this path due to any reason. in ur kids case it is due to post meningitis
. he is even having hydrocephalus
, so what i feel is after a thorough examination by the neurosurgeon and after a series of tests , the requirement of shunt can be decided. if there is a block again in the path way , then he ll surely require a shunt to be placed again.