内リンパ嚢手術を中心に

THE OPERATIVE TREATMENT OF VERTIGO, PARTICULARY ON SURGICAL OPENING OF ENDOLYMPHATIC SAC.

　眩暈と云つても，ここでは耳性眩暈，特にメニエール病の場合に限つて考えることとし，又その手術療法としては，内リンパ嚢手術を中心として述べることとする。

　しかし，その前に一応メニエール病に対する現在までに行なわれて来た各種の手術法を並べて見ると次の如くなる。

The surgical treatment of Ménière's dis-ease may be divided into following 3 types of procedures: 1) The release of endolymphatic pressure,

2) A partial destruction of the inner ear and,

3) Operation on the autonomic nervous system.

The first procedure is that of Portmann who introduced it in 1926 and it appears to be the most logical and physiologically satis-factory of them all. In 1951 Yamakawa and Naito introduced a modification of this me-thod by establishing a pathway of drainage of the endolymph into the meningeal space through a window opened in the inner wall of the endolymphatic sac.

For treatment of verigo the modified me-thod has been efffctive in 90.5%; for tinnitus, 57.1% and, for deafness, 28.6%. The author believes that, in the treatment of Ménière's disease by this method, the operation should be performed early in the course of the dise-ase.