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慢性上颌窦炎是由于反复发作的急性炎症致窦腔粘膜肿胀、肥厚、增生、息肉样变,使鼻窦引流受阻。窦内粘膜上皮失去了原有的纤毛上皮功能,并影响了窦腔内分泌物的排出。上颌窦由于解剖位置的关系更容易使脓液潴留,这是炎症迁延不愈的症结所在。因此,清除分泌物,控制感染,建立良好的引流通道是治疗的关键。上颌窦根治术和近年开展的内窥镜窦口扩大术(功能性鼻窦内窥镜手术)效果固然好,但
Chronic maxillary sinusitis is due to recurrent acute inflammation of the sinus mucosa swelling, hypertrophy, hyperplasia, polypoid change, so that the sinus drainage blocked. Sinus mucosa epithelial loss of the original ciliary epithelial function, and affect the secretion of sinus cavity discharge. Maxillary sinus because of the anatomical location of the relationship more likely to make retention of pus, which is the crux of inflammation delayed healing. Therefore, the removal of secretions, infection control, the establishment of a good drainage channel is the key to treatment. Maxillary sinus surgery and endoscopic sinus expansion in recent years (functional endoscopic sinus surgery) effect is good, but