Middle Meatal Antrostomy가 정상 가토의 상악동에

Inferior meatal antrostomy does not help to lead normal mucociliary transport and windows frequently tend to close. Middle meatal antrostomy has been used recently for the treatment of chronic or recurrent maxillary sinusitis in which the ostium was obstructed, but the effect is still unclear. Middle meatal antrostomy in normal rabbits induced sinus infection and impairment of mucociliary transport. The purpose of this study was to investigate the effects of the middle meatal antrostomy to normal maxillary sinuses in rabbits.

Middle meatal antrostmy including inferior, anterior, and superior margin of natural ostium was performed in 15 rabbits and then sinuses were evaluated at second, fourth and eighth week.

As results, the middle meatal antrostomy resulted in sinus infection at second week, primarily due to ostial damage, and secondarily due to difficult postoperative dressing and impaired mucociliary transport by healing process. But 2 weeks after evacuation of pus in maxillary sinus, inflammatory reaction decreased and sinus infection with mucociliary transport improved. Therefore, healing process of ostium is important to improve the sinus infection in rabbits after middle meatal antrostomy.