| Introduction: Tonsillectomy is among commonest otorhinolaryngologic surgeries. Many
methods have been used to control post surgical pain, but despite it, pain is still one of the
problems related to this operation. Recently, due to the non invasiveness of low level lasers,
this modality has attracted attention. The purpose of this study is to evaluate the effects of low
level laser irradiation at the end of surgery on reduction of pain after tonsillectomy in adults.
Methods: In a clinical trial, 60 adult patients, candidates for tonsillectomy were randomly
assigned to two groups, A and B, and both groups were anesthetized similarly by the same
technique. At the end of surgery, in the case group, the tonsils’ bed were irradiated by infrared
laser with 980nm wavelength, 100Hz, 4J/cm2 from the infra mandibular angle. In the control
group, the tonsils’ bed had laser therapy with a turned off probe.
Following laser treatment, the patients were reversed and extubated and consciousness achieved,
pain and odynophagia were assessed at 2, 4, 6, 8, 12 and 24h post surgery based on visual
analog scale for pain (VAS) and analgesic consumption.
Results: In the laser group frequency of patients with pain sensation in each evaluated hour
was lower than in the control group. The amount of pain decrease and analgesic consumption
reduction was significantly higher in patients who received laser (P=0.01).
Conclusion: Based on the results of this study, use of low level lasers is effective in reducing
tonsillectomy post surgical pain in adults. |