耳鼻咽喉科・頭頸部外科95巻12号

2023年11月発行

Review Article

Heads-up surgery—内視鏡下耳科手術と外視鏡下耳科手術

著者： 欠畑誠治¹²

所属機関： ¹山形大学医学部耳鼻咽喉・頭頸部外科学講座 ²太田総合病院中耳内視鏡手術センター

ページ範囲：P.1038 - P.1050

文献概要

Summary

●顕微鏡下耳科手術の問題点として，「死角」の存在と，術者に負担を強いる「手術時の姿勢」がある。内視鏡下耳科手術と外視鏡下耳科手術はこれらの問題点を解決し，heads-up surgeryという新たなパラダイムへの道を拓いた。

●経外耳道的内視鏡下耳科手術では，術者の正面に術野を，その延長線上にモニターを置くというきわめて自然な姿勢で手術を行える。

●外視鏡は顕微鏡を覗き込むというくびきから術者を解放した。また小型かつ自由度の高いカメラによりワーキングスペースが広くなり，術野も確保しやすいなどの利点がある。

●モニターで内視鏡の画像と外視鏡の画像を瞬時に切り替えたり，2画面表示させたりすることが可能になる。両者の使用によりシームレスなheads-up surgeryが可能となる。

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