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目的：比较斜方肌挤压试验与托下颌试验在儿童七氟醚麻醉下喉罩置入中的应用。方法：择期行斜疝修补术、睾丸固定术等外科短小手术的患儿80例，年龄4～10岁，美国麻醉师协会（ASA ）麻醉分级 I～II级，将其随机分为斜方肌组和托下颌组，每组40例。80例患儿均采用6 L/min氧气及8％七氟醚吸入诱导麻醉，至睫毛反射消失后，托下颌组每10 s托一次下颌，斜方肌组每10 s挤压一次斜方肌，待患儿无体动反应时置入喉罩。记录并比较两组患儿喉罩置入成功率喉罩置入时间，喉罩置入前后心率、血压，呼气末七氟醚浓度（ETsev）、最低肺泡有效浓度（MAC）及不良反应。结果：斜方肌组喉罩置入成功率（95％，38/40）高于托下颌组（75％，30/40），差异有统计学意义（ P＜0．013）；斜方肌组喉罩置入时间较托下颌组长（ P＝0．000）；斜方肌组不良反应的发生明显少于托下颌组；两组喉罩置入前后心率、血压、ETsev、MAC差异均无统计学意义。结论：斜方肌挤压试验适用于评估儿童喉罩置入的的麻醉深度。“,”Objective:To compare the Application of the trapezius squeeze and jaw thrust in laryngeal mask airway (LMA) in-sertion in children under sevoflurane anesthesia .Methods:A total of 80 children aged 4 to 10 ,American Society of Anesthesiol-ogists(ASA) I-II and undergoing minor operation such as indirect hernia repair and orchiopexy were enrolled and randomly de-vived into trapezius squeezing group(Group T ,n= 40) and jaw thrusting group (Group J ,n= 40) .Anesthisia was induced with 6 L/min oxygen and 8% sevoflurane .When the chileren’s eyelash reflex lose ,jaw thrust/trapezius squeeze was applied every 10 s .The LMA was inserted immediately after the response of childern to trapezius squeeze or jaw thrust disppeared .The successful rates of LMA insertion ,LAM insertion time ,and blood pressure(BP) and heart rate(HR) before and after LMA in-sertion ,end-tidal sevoflurane concentrations (ETsev) ,minimum alveolar concentrations (MAC) in two groups were Recorded and compared .Results:The successful rate of the LMA insertion in Group T (95% ,38/40) was significantly higher than that in the Group J (75% ,30/40) ,there was statistical difference(P= 0 .013);The LMA insertion time in Group T was longer than that in Group J (P=0 .000);the untoward effects in Group T were less than those in Group J ;The BP ,HR ,ETsev ,MAC in two groups had not statistical differences .Conclusions :The trapezius squeeze is more sutable than jaw thrust for assessment of anaesthetic depth in LM A insertion in chilren under sevoflurane anesthesia .