[Therapeutic effect of helium-neon laser on microcirculation of nasal mucosa in children with acute and chronic maxillary sinusitis as measured by conjunctival biomicroscopy].

Using biomicroscopy of the bulbar conjunctiva, 65 patients, aged 6 to 15 years, with catarrhal and purulent forms of acute and chronic maxillary sinusitis were examined. At the repair stage the patients were exposed to laser therapy. The results give evidence that laser therapy produced a positive effect on microcirculation and reduced the potential of relapses. Low-energy helium-neon laser affected mostly vessel permeability (decrease of perivascular edema) and blood rheology (red blood cell aggregation). In terms of circulation changes, laser therapy was more beneficial in the case of acute maxillary sinusitis. Circulation lesions, that persisted after laser therapy in some patients with chronic maxillary sinusitis, can be attributed to stable morphological changes in the wall architectonics of microvessels of the nasal mucosa.