内視鏡下経蝶形骨手術の基本手技

Endoscopic Transsphenoidal Surgery: Basic Technique

Point

・下垂体部腫瘍に対する内視鏡下経蝶形骨手術の進歩は目覚ましい．

・内視鏡の利点，欠点を熟知した上で，より安全確実な経蝶形骨手術の基本手技を習得しなければならない．

　Transsphenoidal surgery（TSS）, a revolutionary approach for treating pituitary lesions, was developed at the beginning of the 20th century. However, it has been disused owing to its high complication and fatality rates. In the 1960s, Hardy et al. introduced microscopy into TSS and established its safety, making it a standard procedure that has spread worldwide. In the 1990s, endoscopes were introduced, and further advances were made. In other words, advances in optical instruments have significantly contributed to the development of TSS. Endoscopic TSS（eTSS）has made significant strides since the introduction of high-definition endoscopes in the 2010s. This report outlines the advantages and disadvantages of eTSS and its basic techniques.