1病例报告患者女,56岁。曾因外伤致腰椎压缩性骨折后行钢板内固定术,此次入院是在全身麻醉下行腰椎固定器取出术。患者既往有多年高血压病病史,长期服用降压药效果较为理想,余无其他疾病与药物过敏史。术前检查:一般情况良好,生命体征正常,血压140/90mmHg,心率52~60/min,窦性心律,S-T段改变;其他实验室检查结果均正常,符合手术指征。术前肌内注射 A case report patient female, 56 years old. Once due to trauma caused by compression fractures of the lumbar spine after internal fixation, the hospital admission was performed under general anesthesia lumbar spine removal. Past history of patients with hypertension have many years, long-term use of antihypertensive drugs is more than ideal, I no other diseases and drug allergy history. Preoperative examination: generally good, normal vital signs, blood pressure 140 / 90mmHg, heart rate 52 ~ 60 / min, sinus rhythm, S-T segment changes; other laboratory tests were normal, in line with surgical indications. Preoperative intramuscular injection