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Novel wavelengths for laser nerve stimulation.
- Author(s): McCaughey, Ryan G;
- Chlebicki, Cara;
- Wong, Brian JF
- et al.
Published Web Locationhttps://doi.org/10.1002/lsm.20856
BackgroundLaser light is known to stimulate nerves. This study investigated alternative wavelengths for nerve stimulation.
Materials and methodsThe sciatic nerves of rats were irradiated with four different lasers-a Ho:YAG (2100 nm), a Yb:glass fiber laser (1495 nm) and diode lasers (1450 nm and 1540 nm).
ResultsAll lasers evoked a visible leg twitch response, and electromyography confirmed muscle activation. The Yb:glass laser at 1495 nm delivered through a single mode fiber was found to be the most effective stimulus. The stimulation threshold for a 2 millisecond pulse from the Yb:glass laser was determined to be 3.7+/-2.8 mJ/cm(2).
ConclusionsThe Yb:glass laser has the potential for use in neurostimulation, as an alternative to electrical stimulation.
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