目的探讨修正性内窥镜鼻窦手术的适应症、手术标志、治疗意义以及容易发生的并发症和手术的注意事项。方法采用内窥镜鼻窦手术56例复发性鼻窦炎、鼻息肉患者进行了修正性治疗,术中采用Messerklinger技术、Medtronic切削器,并辅以控制性降压。结果病变清除满意44例,占78.6%;手术欠满意10例,占17.9%;另有2例失败。并发脑脊液鼻漏1例、眼眶血肿4例、术后溢泪3例。结论修正性手术适用于鼻窦术腔出现术腔清理难以控制的病变,对于堵塞、粘连性病变效果更好,对鼻息肉病效果不佳。中鼻甲残根和后鼻孔上穹窿为手术重要的安全标志,术前CT扫描可以减少并发症的发生。 Objective To investigate the indications, surgical indications, therapeutic significance and the complications that occur easily in the sinus surgery of endoscopic sinus surgery. Methods Fifty-six patients with recurrent sinusitis and nasal polyps underwent endoscopic sinus surgery. The patients were treated with Messerklinger technique, Medtronic cutter and controlled hypotension. Results The lesions were satisfactory in 44 cases, accounting for 78.6%; unsatisfactory surgery in 10 cases, accounting for 17.9%; and 2 cases failed. 1 case of cerebrospinal fluid rhinorrhea, 4 cases of orbital hematoma, 3 cases of postoperative overflow of tears. Conclusions Modified surgery is suitable for sinus surgery, where intraoperative cavity is difficult to control. It has better effect on blockage and adhesion disease and poor effect on nasal polyposis. The middle turbinate remnant and posterior nares on the fornix are important safety signs of surgery. Preoperative CT scan can reduce the incidence of complications.