Abstract
The paper deals with the medical application of diode-lasers. A short review of medical therapies is presented, taking into account the wavelength applied, continuous wave (cw) or pulsed regimes, and their therapeutic effects. Special attention was paid to the laryngological application of a pulsed diode laser with wavelength 810 nm, and dermatologic applications of a 975 nm laser working at cw and pulsed mode. The efficacy of the laser procedures and a comparison of the pulsed and cw regimes is presented and discussed.
Highlights
We are approaching the 60th anniversary of laser medical applications
The aim of this paper is to describe and analyse the medical application of diode lasers operating in pulsed and cw regimes, with a special focus on laryngological or dermatological therapies
The Institute developed a dermatologic diode laser emitting at 975 nm, working at cw or pulsed regime—pulse lengths 100 ns−300 ms, and laser output power 20 W [36], which was later implemented for therapies of neurofibroma and hemangiomas [34]
Summary
We are approaching the 60th anniversary of laser medical applications. Shortly after the invention ruby lasers (with wavelength 694.3 nm) in the 1960s, Goldman et al [1]started using it as therapy for melanoma, a human skin disease [2]. We are approaching the 60th anniversary of laser medical applications. In the 1980s, more powerful lasers, such as CO2 lasers, argon lasers, and Nd:YAG lasers, were applied in the field of surgery (including laparoscopic), ophthalmology, dermatology, oncology, etc. Diode lasers (DLs), which first appeared in 1962, are still the most energy efficient and cost effective lasers. They have found more and more applications in the field of medical therapies. Diode lasers were used mainly for photobiomodulation (PBM)—previously known as biostimulation or low-level laser therapy, LLLT— procedures, as well as for photodynamic therapy, where the wavelength is more crucial than high power [4,5].
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