title: [Nd-YAG laser therapy of tracheobronchial lesions by malignant tumor].
abstract: Thirty-seven patients with tracheobronchial lesions by malignant tumor were treated with Nd-YAG laser. Thirty-seven patients were twenty-three males and fourteen females and ages ranged from 34 to 79 years. Diseases included were primary tracheal tumor in 3 cases, lung cancer in 16 (8 squamous cell carcinoma, 5 adenocarcinoma, 2 large cell carcinoma, 1 small cell carcinoma), cancer of adjacent organs in 9 (5 thyroid cancers, 4 esophageal cancers), and metastatic cancer to the lung or mediastinal lymph nodes in 9 (4 renal cell carcinoma, 2 thyroid cancer, one patient respectively, colon cancer and breast cancer). Intermittent irradiation of YAG laser was done for 0.5 second at 30-40 Watt through flexible bronchoscope under local anesthesia. It was repeated 1 to 41 times (mean 4.1 times) and energy amount was 148 Joules to 18,513 Joules (mean 3,305 J). The result was; stenosis disappeared in 22 cases (59.4%), improved in 14 (37.8%), and in one case YAG laser therapy discontinued due to intractable bleeding. The Nd-YAG laser therapy for tracheobronchial lesions by malignant tumor is very useful to improve dyspnea or atelectasis.
authors.affiliation: Department of Surgery, Keio University School of Medicine.
authors.forename: K
authors.initials: K
authors.lastname: Kikuchi
authors.forename: T
authors.initials: T
authors.lastname: Kakizaki
authors.forename: M
authors.initials: M
authors.lastname: Sawafuji
authors.forename: N
authors.initials: N
authors.lastname: Hangai
authors.forename: T
authors.initials: T
authors.lastname: Yamamoto
authors.forename: T
authors.initials: T
authors.lastname: Kobayashi
authors.forename: M
authors.initials: M
authors.lastname: Watanabe
authors.forename: M
authors.initials: M
authors.lastname: Kawamura
authors.forename: R
authors.initials: R
authors.lastname: Kato
authors.forename: K
authors.initials: K
authors.lastname: Kobayashi
mesh_terms: D000328:Adult; D000368:Aged; D001982:Bronchial Diseases / Q000209:etiology / Q000601:surgery*; D001999:Bronchoscopy; D003251:Constriction, Pathologic; D005260:Female; D006801:Humans; D053685:Laser Therapy / Q000379:methods; D008175:Lung Neoplasms / Q000150:complications*; D008297:Male; D008875:Middle Aged; D014134:Tracheal Neoplasms / Q000150:complications*; D014135:Tracheal Stenosis / Q000209:etiology / Q000601:surgery*