Objective:To evaluate the effect of presurgical nasal mode(PNM)combined with nasal diorthosis in the treatment of na-sal deformity and incomplete unilateral cleft lip(IUCL)in infants.Methods:35 infants with IUCL were treated by PNM followed by nasal diorthosis and cheiloplasty.The nasal asymmetry was analysed by measurments of nostrils height,nostrils width and nasal colu-mella angle skewness on the photographs at the initial visit(T0),pre-operation(T1),1 week after operation(T2),1 month after opera-tion(T3)and a year after operation(T4).The other 35 infants with IUCL without PNM treatment were served as the controls.Re-sults:Compared with the controls,the symmetry of nostrils height,nostrils width,nasal columella angle skewness in PNM treated children were significantly improved at T0-T1 and T1-T2(P <0.05).there was no significant difference at T2-T3 and T3-T4(P >0. 05).Conclusion:Nasal asymmetry can be improved by presurgical nasal mode treatment followed by preliminary nasal deformity di-orthosis and cheiloplasty.%目的：评价采用术前鼻模矫治（PNM）结合唇裂手术初期鼻矫正术治疗单侧不完全性唇裂的临床效果。方法：35例行 PNM单侧不完全唇裂患儿为治疗组；对照组35例未行术前治疗。在矫正前（T0）、唇裂术前（T1）、术后1周（T2）、术后1月（T3）、术后1年（T4）分别拍摄鼻部照片，测量分析鼻孔高度、鼻孔宽度、鼻小柱倾斜度的对称性的变化。结果：T0-T1、T1-T2，患者的鼻孔高度、鼻孔宽度和鼻小柱偏斜度明显改善（P ＜0．05），在 T2-T3与 T3-T4，改善程度差异无统计学意义（P ＞0．05）。结论：PNM结合唇裂手术初期修复鼻畸形可明显改善鼻部对称性，提高单侧不完全性唇裂鼻畸形的治疗效果。
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