Conclusion The most common surgical causes of failures in endoscopic sinus surgery are the disease area remnant,nasal cavity adhesion,maxillary sinus ostium stenosis,uncinate process residual,ethmoid hyperostosis,and nasal septum deviation.

• 结论:病变残留、鼻腔粘连、窦口狭窄闭锁、钩突残留、筛窦骨质增生、鼻中隔偏曲是实施修正性手术的主要原因。