耳迷路外科の經驗（第2報）—ポルトマン氏手術成績に就て

　1．緒言

　嘗てPortmannは迷路内淋巴壓の下降を目的として，内淋巴嚢Capiaccus endolymphaticusの開放を提唱した．所謂Portmannの手術である．

　著者は昭和22年以來相次いで，本手術を實施する機會を持つたので，此處にその成績を報告し，聊か考按を加えて見度いと思う．苦しそれ大方の御批判と御叱正とを得ることが出來れば著者の最も幸とする處である．

According to Tsuiki, Portmann's operation of creating an opening into saccus endolymphaticus was effective in relieving the symptoms of dizzi-ness, which was the main complaint, in five pa-tients. These patients were incapacitated to the state of recumbency by severe attachs of dizziness, the so called status labyrinthicus, before the oper-ation. But, after the operation, they were freed of all symptoms to the extent that they might res-ume their former occupation and lead a normal life with a sense of well being.

Such experience, the author says, has established a fact with relative certainty that, there is a set of labyrinthine disease the symptoms of which may be readily relieved by measure that would release increasing pressure in the endolymphs.

The author states, the true uuderlying cause of this disease must be regarded as the factor which would continually create the state of increased pressure of the endolymphs, and, it is inherently present in the labyrinth as chain of physiological process.