患者,女,48岁,63kg。因发现颈前肿块4d入院。既往体健,无药物、食物过敏史及麻醉手术史,无心血管疾病史及其他病史。查体:除右侧甲状腺侧叶扪及约 2.5cm×2cm ×1cm大小肿块,边界清楚外,余未发现异常。拟施右侧甲状腺次全切除术。入室前30min苯巴比妥钠0.1g和阿托品0.5mg肌注。常规监测心电图、血氧饱和度、无创动脉血压。8:25先行右侧颈浅丛神经阻滞、成功后以含 0.375％罗哌卡 Patient, female, 48 years old, 63kg. Because of the discovery of cervical mass 4d admission. Previous health, no drugs, food allergy history and history of anesthesia, no history of cardiovascular disease and other medical history. Examination: In addition to the right side of the thyroid palpable palpable about 2.5cm × 2cm × 1cm size of the tumor, the boundary is clear, I found no abnormalities. The proposed right subtotal thyroidectomy. 30min before entering the room phenobarbital 0.1g and atropine 0.5mg intramuscular injection. Routine monitoring of ECG, oxygen saturation, noninvasive arterial pressure. 8:25 first right superficial cervical plexus block, after the success with 0.375% ropivacaine