目的：探讨超声引导下C7水平星状神经节阻滞（SGB）前外侧入路的可行性。方法：在尸体上行超声引导下C7水平入路星状神经节美蓝注射，解剖观察其浸润部位；对20名住院患者行超声引导下C7水平SGB，注射局麻药与造影剂的混合液4 mL，并进行CT三维重建，观察扩散范围、成功率及并发症。结果：尸体解剖显示C7水平椎前筋膜之下、颈长肌前外侧缘注射的美蓝，准确浸润交感干；CT三维重建显示4 mL药液可扩散至C3-T1水平甚至T2水平；而超声引导下C7入路SGB成功率达100%，1例发生短暂性声嘶。结论：超声引导下C7水平SGB是一种安全有效的阻滞方法。%Objective: To investigate the feasibility of ultrasound guided antero-lateral approach of stel-late ganglion block at C7 level.Methods: Inifltration site by methylene blue was observed after stellate ganglion block underwent by ultrasound on the cadaver. Meanwhile, 20 in-patient cases who underwent ultrasound guided stellate ganglion block at C7 level were included. After administration of 4 mL (mixed with contrast agent) local nacrotic drug followed by 3D-CT reconstruction, the diffusion range, therapeutic effect and complications were recorded.Results: When injecting into the space between inferior of prevertebral fascia and anteriolateral of lon-gus colli muscle at C7 level, methylene blue had satisfactory inifltration on sympathetic trunk in autopsy. 3D-CT reconstruction showed that 4 mL of local nacrotic drug could spread to C3-T1 and even to T2 level. Ultrasound guided stellate ganglion block at C7 level showed perfect effect without failure, as well as 1 case of transient hoarseness.Conclusion: Ultrasound-guided stellate ganglion block at C7 level was a safe and effective approach.
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