[Effects of hyperbaric oxygen on mucosal inflammatory response after nasal surgery in rabbits].

Objective: To observe the effect of hyperbaric oxygen therapy for the inflammation of rabbit nasal in postoperation period, to investigate the clinical feasibility of hyperbaric oxygen therapy in reducing the inflammatory reaction and promoting mucosal healing in nasal recovery stage after surgery. Method: A total of 16 Japanese white rabbits were randomly assigned to hyperbaric oxygen group and non hyperbaric oxygen group, with 8 in each, and another 5 was divided into normal control group. The non hyperbaric oxygen group was in the normal atmospheric environment, the hyperbaric oxygen group was given hyperbaric oxygen treatment on the fifth day after the operation. All the animals were sacrificed to observe the morphological changes and pathological changes of the mucosa in the bilateral inferior turbinate surgery area at sixth weeks after operation. The normal control group was taken the same part of mucosa. Result: Specimen: hyperbaric oxygen group postoperative empyema in 2 side, 8 side of non hyperbaric oxygen group, hyperbaric oxygen group was significantly reduced compared with non hyperbaric oxygen group, the difference was statistically significant ( P < 0.05). Pathological changes: in the hyperbaric oxygen group, the infiltration of inflammatory cells was mild in 12 sides and moderate in 4 sides; the non hyperbaric oxygen group was mild in 1 sides, moderate in 13 sides, and severe in 2 sides, the hyperbaric oxygen group was significantly lower than the non hyperbaric oxygen group, the difference was statistically significant ( P < 0.01). Conclusion: Under the condition of this experiment, hyperbaric oxygen therapy can significantly reduce the inflammatory response of rabbit nasal mucosa after operation, and reduce the accumulation of purulent secretion.