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【目的】评价鼻腔扩容术治疗阻塞性睡眠呼吸暂停低通气综合征（obstructive sleep apnea‐hypop‐nea syndrome ，OSAHS）的疗效。【方法】本科2011年1月至2013年1月收治 OSAHS 患者52例，根据呼吸暂停低通气指数（apnea‐hypopnea index ，AHI）或最低动脉血氧饱和度（lowest arterial oxygen saturation ， LSaO2）分为两组，A 组（AHI ≤30次／小时或65％≤ LSaO2≤90％）及 B 组（AHI ＞30次／小时或 LSaO2＜65％）。 术前各组除完成多导睡眠监测（polysomnography ，PSG）外，还需完成 Epworth 嗜睡量表（Epworth sleepiness score ，ESS）、鼻塞可视模拟评分量表（visual analogue scale ，VAS）、患者鼾声问卷（Snore outcomes survey ，SOS）评分及患者配偶／床伴鼾声问卷（The Spouse／Bed Partner survey ，SBPS）评分，行鼻腔扩容术后6个月复查，比较术前术后主客观指标。【结果】52例患者术后有效率为25．0％。 A 组有效率41．7％，B 组有效率11．5％，两组比较有统计学意义（ P ＜0．05）；A 组与 B 组术后 VAS 、ESS 较术前均显著改善（ P ＜0．01），而 AHI 及 LSaO2无明显改善（ P ＞0．05）。 A 组术后 SOS 及 SBPS 评分较术前显著增高（ P ＜0．01），而 B 组SOS 及 SBPS 评分无增高（ P ＞0．05）。 【结论】鼻腔扩容术不能改善 OSAHS 患者的 AHI 及 LSaO2，但能改善其鼻塞、日间嗜睡状态及轻中度患者的鼾声，对轻中度 OSAHS 患者的疗效优于重度 OSAHS 。“,”Objective]To evaluate the efficacies of nasal cavity ventilation expansion for obstructive sleep apnea hyponea syndrome (OSAHS) .[Methods] During January 2011 to January 2013 ,a total of 52 OSAHS cases were divided into two groups according to apnea‐hypopnea index (AHI) or lowest arterial oxygen satura‐tion (LSaO2 ) ,i .e .group A (AHI ≤ 30 events/h or 65% ≤ LSaO2 ≤ 90% ) and group B (AHI > 30 events/h or LSaO2 < 65% ) .All of them completed Epworth sleepiness score (ESS) ,visual analogue scale (VAS ) , snore outcomes survey (SOS) and spouse/bed partner survey (SBPS) .Also polysomnography (PSG) before and 6 months before surgery ,changes of objective and subjective symptoms before and after surgery were com ‐pared between two groups .[Results] The effective rate of group A was higher than that of group B (41 .7%vs 11 .5% ) ( P < 0 .05) .There were significant improvements in VAS and ESS ( P < 0 .01) in groups A and B .However ,AHI and LSaO2 showed no improvement after surgery .There were significant improvements of SOS and SBPS in group A ( P 0 .05) .The overall effective rate was 25 .00% .[Conclusion] Nasal cavity ventilation expansion can improve nasal obstruction and daytime sleepiness and alleviate snoring in mild‐moderate OSAHS . However ,AHI or LSaO2 is not affected .Therefore ,it is more efficacious for mild‐moderate OSAHS than severe OSAHS .