乳児大泉門圧 Part Ⅱ—Macrocrania 6例の検討

Fontanelle Pressure in Infants (Part Ⅱ): Discussion on 6 cases of macrocrania

I．はじめに

　われわれは乳児の頭蓋内圧を大泉門上より非観血的に測定を行ってきた．この方法により正常新生児，乳児におけるbaseline pressureやREM期の圧変動についてもある程度知ることができるようになった^8）．

　今回は外見上異常と見られるmacrocrania（＋2SD以上）を有する乳児6例について，頭蓋内圧測定がわれわれに何を教えてくれるのかをテーマに，個々の症例の頭蓋内圧（pressure wave，baseline pressure），CTを中心に検討を行った．

　From the results of ICP determination in 6 cases of macrocrania, it is evident that Lundberg's pressure wave (plateau wave, B wave) can be sufficiently adapted for evaluating abnormality under the semi-closed circumference like infants.

　ICP determination in the case of macrocrania with mild enlarged ventricles important for knowing pathologic changes. In particular, pressure variation and amplitude changes during REM period seem to be an interesting index for knowing the involvement of venous function.