患者,男,67岁。因下腰痛伴间隙性跛行10余年,加重1个月,于2014年3月22日入院。近1个月来,患者感症状加重,起身、负重后明显,平地行走200米即感疼痛难忍,蹲下休息后缓解,来我院就诊,查CT提示L4、L5椎间盘突出伴骨性椎管狭窄,遂拟诊“腰椎管狭窄症”收住骨科进一步诊治。既往有高血压病史数年余,平时自服“尼群地平、卡托普利”血压控 Patient, male, 67 years old. Due to low back pain with lax claudication more than 10 years, an increase of 1 month, on March 22, 2014 admission. Nearly a month, the patient’s symptoms increased, got up, after the obvious weight, flat walking 200 meters that is unbearable pain, rest after squat relief, to our hospital, check CT tips L4, L5 disc herniation with bone vertebral Stenosis, then proposed diagnosis “lumbar spinal stenosis ” to receive orthopedic further diagnosis and treatment. Past history of hypertension more than a few years, usually self-serving “nitrendipine, captopril ” blood pressure control