Influence of skin type and laser wavelength on laser ‐evoked potentials

ConclusionsThis study shows that LEP elicitation depends on the combination of laser penetrance and skin type. Low penetrance stimuli, from a CO2 laser, elicited significantly lower LEPs and perceived intensities in the palm.SignificanceThis study showed that the elicitation of laser-evoked potentials in healthy humans greatly depends on the combination of laser stimulator type and skin type. It was shown that high penetrance laser stimuli are capable of eliciting responses in both hairy and glabrous skin, whereas low penetrance stimuli barely elicited responses from the glabrous skin. Computational modelling was used to demonstrate that the results could be fully explained by the combination of laser type and skin thickness.

Source: European Journal of Pain - June 26, 2023 Category: Anesthesiology Authors: Ken Steffen Frahm, Sabata Gervasio, Federico Arguissain, Andr é Mouraux Tags: ORIGINAL ARTICLE Source Type: research