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Comparative study of heat injury on vocal cord mucosa induced by different power semi conductor laser / 第二军医大学学报
Academic Journal of Second Military Medical University ; (12)2000.
Article in Chinese | WPRIM | ID: wpr-677433
ABSTRACT

Objective:

To explore the heat injury level of vocal cord by different power of the Diomed 25 semi conductor laser so as to provide scientific evidence for clinical laser therapy of larynx diseases.

Methods:

Canine was used. The power of laser was set on 5, 10 and 20 W respectively, and the time of laser exposure was fixed on 2 s.When canine vocal cord was hit by laser in vivo , the depth and width of the tissue heat injury were measured.

Results:

When laser hit with 5, 10 and 20 W for 2 s exposure time, the corresponding depth of the tissue heat injury were 0.2 0.4,0.4 0.6,0.8 1.0 mm respectively, the corresponding width of the tissue heat injury were 1.0 1.7,1.7 2.0,2.0 2.6 mm respectively. There was significant difference between the tissue heat injury levels caused by different laser power under the same exposure time( P

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Academic Journal of Second Military Medical University Year: 2000 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Academic Journal of Second Military Medical University Year: 2000 Type: Article