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目的：探讨鼻内镜下改良下鼻甲成形术的临床疗效及手术技巧。方法114例慢性肥厚性鼻炎患者随机分组，A组57例行鼻内镜下改良下鼻甲成形术，B组57例行鼻科微型切吸器下鼻甲黏膜下切除术，比较两组的疗效。结果两组患者术后鼻阻力值及VAS评分均较术前显著降低（ P＜0．05）；两组间术后1月时鼻阻力及VAS评分比较差异无统计学意义（P＞0．05），而术后1年时均下降（P＜0．05）；A组术后近、远期疗效差异无统计学意义（P＞0．05），B组有统计学意义（P＜0．05）。结论改良下鼻甲成形术的远期疗效明显好于以微型切吸刀头行黏膜下组织切吸术，是改善慢性肥厚性鼻炎患者鼻塞的理想方法。“,”Objective To investigate the effectiveness and operation skills in improved plasty of the inferior turbinate. Methods Totally 114 cases of chronic hypertrophic rhinitis were randomly grouped.The 57 cases of group A were treated by improved plasty of inferior turbinate, and the other 57 cases of group B were treated by submucous turbinate resection with a micro-suction cutter.Results The post-operative nasal resistance value and VAS scores were signifi-cantly lower than the pre-operative ones( P0.05), but there was after post-operative 1 year (P0.05), but there was in group B (P<0.05) .Conclusion The improved plasty of inferior turbinate can result in better forward curative effect than the submucous turbinate resection with a micro-suction cutter, and it is ideal in improving chronic hypertrophic rhinitis.