Komei Ueki

　We have been most fortunate to have an occasion　to hear Dr．　Pudenz discusses his work．　His results　are clear-cut and his analyses of the clinical data is　excellent．　I think all can agree, that for the present　time at least, his procedure is the one of choice from　the many procedures availabe for the treatment of　congenital hydrocephalus．

　We too have had experience in his method with　good results even though the instruments used by us　are modified in some respects to his instruments．　For example, in our series there were two slits in　the cardiac tube and no diaphragm valve for theflushing device．　It will be noted that in tables 1　and 2, the clinical results obtained with this method　are obviously better than those obtained by previously　used methods．　In respect to the newer method　however, it must unfortunately be pointed out, that　in some instances we experienced an obstruction to　the cardiac end of the tube．　Out of twenty four　cases, five had to be subjected to repeated operation　two or three times．