Evaluation of the Effect of Light Emitting Diodes Therapy (LEDT) to Reduce the Recovery Period of Rhinoplasty

<b>Introduction:</b> Rhinoplasty, as one of the most common cosmetic surgeries, can cause several postoperative complications. Management of the early complications, such as edema and ecchymosis, can reduce patients' concerns and shorten the recovery period. Several methods have been applied to reduce these complications. Recently, light-emitting diode therapy, which operates on the principles of photobiomodulation, has gained some attention in managing these complications. Its ability to enhance tissue healing and shorten the recovery period can play a role in improving postoperative outcomes. This study evaluates the effects of light-emitting diode therapy on ecchymosis, edema, and wound healing after rhinoplasty. <b>Methods:</b> A randomized controlled clinical study was conducted. Sixty patients who underwent rhinoplasty were included. Patients were randomly assigned to either the control or intervention group. The intervention group received light-emitting diode therapy using red light (660nm) three times a day for 10 minutes at each session, over 14 days. The effects of light-emitting diode therapy on early postoperative complications, such as ecchymosis, edema, and the wound healing process, were evaluated. The outcomes were compared between the two groups. <b>Results:</b> In the intervention group, patients had a significant reduction in ecchymosis and edema at one and two weeks after the surgery compared to the control group. Pairwise comparison in the intervention group revealed that ecchymosis reduced significantly during first and second weeks (<i>P</i><0.001 and <i>P</i>=0.03, respectively). However, edema showed significant improvement primarily during the second week (<i>P</i><0.001). This suggests a slower resolution rate for edema. Additionally, the rate of wound healing was significant in the intervention group at two weeks post-surgery (<i>P</i>=0.037), with further notable improvement observed at one month (<i>P</i><0.001). No adverse effects were reported. <b>Conclusion:</b> Light-emitting diode therapy can reduce early postoperative complications, such as ecchymosis and edema, and accelerate wound healing during the first two weeks after rhinoplasty.