We do not have such a small age of Chiari malformation undergoing surgery but we do perform about a dozen cases from 1994 in our hospital, often with correction of scoliosis. Smallest age is 13 y.o.. No particular attention for us, anesthesiologist, although a theorical difficult airway and M.H. incidence...thanks God we do not encounter although I remember one of them has a combined Klippel Feil and Sprengel deformity. None of them have CV abnormalities. Complications encountered are: CSF leak, meningitis but no fatal outcome..