Japanese | English

トップページへ戻る

詳細

   
フルテキストURLフルテキストリンクなし
タイトル中枢気道悪性病変に対する低出力Nd : YAG lasterを用いた内視鏡的レーザー温熱療法についての実験的検討
タイトルヨミチュウスウ キドウ アクセイ ビョウヘン ニ タイスル テイシュツリョク Nd : YAG laster オ モチイタ ナイシキョウテキ レーザー オンネツ リョウホウ ニツイテノ ジッケンテキ ケントウ
タイトル別表記Experimental Study of Endoscopic Laser Hyperthermia Using Low Power Nd:YAG Laser for Central Airway Malignancies
作成者野村, 敏
作成者ヨミノムラ, サトシ
作成者別表記Satoshi, Nomura
作成者所属山口大学医学部
内容記述(抄録等)Nd:YAG laser irradiation of 25-50W is useful in the bronchoscopic treatment of central air way malignancies, but is associated with complications such as bleeding and perforation. In recent years, laser hyperthermia using low power Nd:YAG laser under 5W was investigated or clinically applied in many fields due to its ability to heat a very restricted region effectively. An experimental study applying laser hyperthermia into bronchoscopic treatment of central air way malignancies was performed and results compared with those of high power Nd:YAG laser irradiation which is widely used. The following results were obtained: (1) Laser hyperthermia using 2.5W Nd:YAG laser produced a lower volume of defect and carbonization and a greater volume of coagulation in irradiated tissues than high power Nd:YAG laser irradiation with 25W. (2) By repeatedly switching the power with the foot switch, it was possible to maintain the temperature between 42.5 and 43.5 degrees Centigrade 5mm from the frosted probe during laser hyperthermia using 2.5W, 0.5sec-pulse mode. (3) In the investigation using resected Beagle trachea, pin-hole perforation was recognized at the site between cartilages after 1 minute of laser hyperthermia using 2.5W, 0.5sec-pulse mode. While at sites on the cartilage, defect of irradiated tissue was restricted within the cartilage, and there was no perforation detected. (4) Though laser hyperthermia using low power Nd:YAG laser is inferior to high power Nd:YAG laser irradiation with respect to immediate relief of air way stenosis, there are some advantages such as lower risk of bronchial perforation or bleeding, decreased smoke generated and deeper anti-tumor effect. Thus it is considered a promising method which is easily performed after minimum widening of the air way by high power Nd:YAG laser irradiation.
本文言語jpn
著者キーワードレーザー温熱療法
Nd:YAG レーザー
中枢気道悪性病変
気管支内視鏡的治療
主題医学
資料タイプtext
出版者山口大学医学会
出版者ヨミヤマグチ ダイガク イガッカイ
NII資料タイプ学術雑誌論文
査読の有無査読あり
ISSN0513-1731
NCIDAN00243156
学内刊行物(紀要等)山口医学
掲載誌名山口医学
43
1
開始ページ37
終了ページ48
発行日1994-02
著者版/出版社版その他
リポジトリIDB030043000106
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/B030043000106