he clinical manifestation and follow-up study of 30 cases of newbom kemicterus are reported. Mian causes of kernicterus were infection and hemolysis disease of newbom.newbom.Serum bilirubin measured 29 cases

with 20 cases

20 casesserum bilinibin > 342umol/L

and 9 cases < 342umol/L.12 cases died.And 18had been followed-up in 5 months to9 yeaxs. In the follow-up study of 6 cases.ldied aild 5 with severe sequels.5 cases were tested by BAEP

allshowing. poripheral hearing loss.However the occurrrence of kemuictenis was not exactly parallel with the concentrtionof serum bilirubin because some prematures with serum bilirubin lower that”critical valus”also suffered from ker-nicterus

so eraly diagnosis and timtinent are imlportant

if necessary exchange transfusion should be carried otu

especially in premature haby.BAEP can be used to detect early NS and auditory damage.