Possible hazards from irradiation with the carbon dioxide laser

Lasers in Surgery and Medicine - Tập 6 Số 1 - Trang 84-86 - 1986
N. P. J. Walker1, Julie Matthews2, S.W.B. Newsom2
1Department of Dermatology Addenbrooke's Hospital, Cambridge, United Kingdom
2Department of Microbiology, Addenbrooke's Hospital, Cambridge, United Kingdom

Tóm tắt

AbstractPrevious investigators, using relatively high irradiance levels, have been unable to demonstrate viable tissue in the plume during carbon dioxide laser vaporization. Our study was undertaken to reinvestigate this possibility, particularly at the lower irradiance levels that are currently in clinical use. Fresh post‐mortem skin was injected with a known quantity of bacterial spores and vaporized at different levels of irradiance and energy fluence. The plume and splatter were collected and cultured. Spores were found following the vaporization of five of 13 specimens treated at an irradiance of <500 W/cm2, while there were none in the 20 specimens treated at an irradiance of >997 W/cm2. These results show that the widely accepted assumption that the carbon dioxide laser produces a sterile field may be false and that viable particles may be disseminated during vaporization at low irradiance. This may be important when considering the treatment of potentially infectious lesions.

Từ khóa


Tài liệu tham khảo

10.1002/1097-0142(19820101)49:1<61::AID-CNCR2820490114>3.0.CO;2-N

Bellina JH, 1982, Analysis of plume emissions after papovavirus irradiation with the carbon dioxide laser, J Reprod Med, 27, 268

Matthews J, 1985, Aerobiology of irradiation with the carbon dioxide laser, J Hosp Infect, 6, 230, 10.1016/S0195-6701(85)80105-5

10.1111/j.1749-6632.1976.tb41614.x

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Lasers in Surgery and Medicine

Tập 6 Số 1

84-86

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