Low power laser therapy and analgesic action.

Area of Science:

• Pain management and therapeutic laser applications.
• Biomedical optics and photobiomodulation.
• Rheumatology and sports medicine.

Background:

• Low-power laser therapy modulates prostaglandin synthesis, increasing prostacyclin production.
• Prostacyclin exhibits significant vasodilating and anti-inflammatory properties.
• Endothelial and smooth muscle cells are key sites for prostacyclin synthesis.

Observation:

• A study involved 372 patients with rheumatic, degenerative, traumatic conditions, and ulcers.
• Patients had previously shown poor response to conventional treatments, including other laser types.
• A pulsed 904-nm GaAs diode laser was applied daily for 5 days, with a 2-day interval, averaging 12 sessions.

Findings:

• Significant symptom reduction was observed in osteoarthritis (cervical, coxa), sport injuries, epicondylitis, and cutaneous ulcers.
• The 904-nm diode laser therapy demonstrated high efficacy in diverse patient cohorts.
• Positive outcomes were noted for both acute pain and chronic conditions with recurrent crises.

Implications:

• 904-nm diode laser treatment substantially alleviates pain and enhances patient quality of life.
• This therapeutic approach offers a non-invasive option that may postpone the need for surgical procedures.
• The findings support the 904-nm diode laser as a primary choice for pain reduction therapy.