15 August 2020>: Articles
A 57-Year-Old African American Man with Severe COVID-19 Pneumonia Who Responded to Supportive Photobiomodulation Therapy (PBMT): First Use of PBMT in COVID-19
Unusual or unexpected effect of treatment
Scott A. Sigman A* , Soheila Mokmeli A , Monica Monici A , Mariana A. Vetrici BDOI: 10.12659/AJCR.926779
Am J Case Rep 2020; 21:e926779
Table 1. Laser parameters for COVID-19 pneumonia patients.
808 nm (GaAlAs) diode | 905 nm (GaAs) diode | |
---|---|---|
Mode of radiation | Pulsed | Pulsed |
Frequency | 1500 Hz, (Duty Cycle 50%) (1 Hz÷2 kHz) | 1500 Hz (90 kHz Modulated at 1 Hz÷2 kHz) |
Pulse duration | 333 μs (500 ms÷250 μs) | 100 ns |
Peak power | 3 W | 75W×3 |
Average power | 1.5 W | 11.25×3=33.75 mW |
Spot size | 19.625 cm | |
Area | On each lung25×10=250 cm | |
Dose | 7.1–7.2 J/cm | |
Distance from the skin | 20 cm | |
Treatment time | 14 minutes each lung | |
Total energy | 3600 J1794.24 each lung | |
Total time | 28 minutes | |
Sessions | Once daily for 4 days | |
The table explains the technical parameters for the dosage of laser energy and treatment time used in this case report. GaAlAs – Gallium Aluminum Arsenide Diode; GaAs – Gallium Arsenide Diode. The two diodes are part of a single laser system, the Multiwave Locked System (MLS). For patients with dark skin color, there is a pigment adjustment selection button on the laser console. When the pigment selection is activated, laser intensity is reduced by 50% and the software automatically recalculates the required dose. |