Abstract
Near-infrared laser therapy, a special form of transcranial light therapy, has been tested as an acute stroke therapy in three large clinical trials. While the NEST trials failed to show the efficacy of light therapy in human stroke patients, there are many lingering questions and lessons that can be learned. In this review, we summarize the putative mechanism of light stimulation in the setting of stroke, highlight barriers, and challenges during the translational process, and evaluate light stimulation parameters, dosages and safety issues, choice of outcomes, effect size, and patient selection criteria. In the end, we propose potential future opportunities with transcranial light stimulation as a cerebroprotective or restorative tool for future stroke treatment.
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Acknowledgements
We would like to thank Husam Mikati for his generous assistance with this manuscript.
Funding
Dr. Liu would like to acknowledge grant fund RF1MH114285, “Transcranial Infrared Brain Stimulation: A Novel Tool for Noninvasive Neuromodulation.”
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Feng, W., Domeracki, A., Park, C. et al. Revisiting Transcranial Light Stimulation as a Stroke Therapeutic—Hurdles and Opportunities. Transl. Stroke Res. 14, 854–862 (2023). https://doi.org/10.1007/s12975-022-01103-7
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DOI: https://doi.org/10.1007/s12975-022-01103-7