Charles Philip Gabel1, Samuel R Petrie2, David Mischoulon2, Michael R Hamblin3,4, Albert Yeung2, Lisa Sangermano2, Paolo Cassano2,5. 1. Coolum Physiotherapy, Sunshine Coast, Queensland. 2. Harvard Medical School, Depression Clinical and Research Program, Harvard University, Massachusetts General Hospital, Boston. 3. Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Department of Dermatology, Harvard Medical School, Boston. 4. Harvard-MIT Division of Health Science and Technology, Cambridge MA 02139. 5. Harvard Medical School, Center for Anxiety and Traumatic Stress Disorders, Harvard University, Massachusetts General Hospital, Boston.
Abstract
BACKGROUND AND AIMS: To present incidental findings in patients with low back pain (LBP) who received photobiomodulation (PBM) administered to the back and thighs as an adjunct to physical therapy (PT) and then experienced improvement in concurrent depression. MATERIALS AND METHODS: Five outpatients with LBP and concurrent self-reported depression were treated for LBP over five weeks with PT (5-sessions) and concurrent PBM (final 3-sessions), and retrospectively matched to five control patients treated with PT alone (5-sessions). The PBM device emitted light at 850nm and 660 nm with an irradiance of 100 mW/cm2 and fluence of 3 J/cm2 on 12 symmetrical posterior sites (thoracic, lumbar and thighs) for 30 sec/site. RESULTS: Both groups had non-significant differences in all baseline scores, except for higher functional status (ARGS) in the PBM-group (33.6 ± 12.2 vs.18.6 ± 3.6, t(8) = 2.638, p = 0.030). After treatment, the mean decrease in depression scores (OMSQ-12 item #6) was significantly larger in the PBM-group (43.0 ± 22.0 vs. 8.0 ± 5.7, t(8) = 3.449, p = 0.009). Improvement in functional status (ARGS) in the PBM-group was similar to that in the controls (42.0 ± 13.5 vs. 43.4 ± 11.1, t(8) = 0.179, p = 0.862), suggesting group differences in antidepressant effect were independent of functional status improvement. CONCLUSIONS: This preliminary investigation suggests that an antidepressant effect may result from PBM to the back and thighs in patients with LBP and concurrent depression. 2018, Japan Medical Laser Laboratory.
BACKGROUND AND AIMS: To present incidental findings in patients with low back pain (LBP) who received photobiomodulation (PBM) administered to the back and thighs as an adjunct to physical therapy (PT) and then experienced improvement in concurrent depression. MATERIALS AND METHODS: Five outpatients with LBP and concurrent self-reported depression were treated for LBP over five weeks with PT (5-sessions) and concurrent PBM (final 3-sessions), and retrospectively matched to five control patients treated with PT alone (5-sessions). The PBM device emitted light at 850nm and 660 nm with an irradiance of 100 mW/cm2 and fluence of 3 J/cm2 on 12 symmetrical posterior sites (thoracic, lumbar and thighs) for 30 sec/site. RESULTS: Both groups had non-significant differences in all baseline scores, except for higher functional status (ARGS) in the PBM-group (33.6 ± 12.2 vs.18.6 ± 3.6, t(8) = 2.638, p = 0.030). After treatment, the mean decrease in depression scores (OMSQ-12 item #6) was significantly larger in the PBM-group (43.0 ± 22.0 vs. 8.0 ± 5.7, t(8) = 3.449, p = 0.009). Improvement in functional status (ARGS) in the PBM-group was similar to that in the controls (42.0 ± 13.5 vs. 43.4 ± 11.1, t(8) = 0.179, p = 0.862), suggesting group differences in antidepressant effect were independent of functional status improvement. CONCLUSIONS: This preliminary investigation suggests that an antidepressant effect may result from PBM to the back and thighs in patients with LBP and concurrent depression. 2018, Japan Medical Laser Laboratory.
Entities:
Keywords:
Depression; low back pain; low level laser therapy; near infrared and red light; photobiomodulation
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