cervical sympathetic block

例句：

1. 1.The patient was diagnosed with a cervical sympathetic block and required immediate surgical intervention.
   患者被诊断出患有颈交感神经阻滞，需要立即进行手术干预。
2. 2. During the operation, the surgeon successfully blocked the cervical sympathetic nerves to relieve the patient's pain.
   在手术过程中，外科医生成功地阻断了颈交感神经，以缓解患者的疼痛。
3. 3. The cervical sympathetic block has been shown to be effective in treating chronic back pain.
   颈交感神经阻滞已被证明对治疗慢性背痛有效。