[病历摘要] 杨某,男,60岁,身高1.65米,体重60kg。 主因口渴、多饮、消瘦5年,左足坏疽1月。患者于5年前因口渴、多饮、消瘦,在当地医院诊断为“糖尿病”。间断服用优降糖、降糖灵等药物,血糖波动在13mmol/L左右。1年前,出现左下肢浮肿、双足麻木、凉及针刺样疼 [Medical records summary] Yang, male, 60 years old, height 1.65 meters, weight 60kg. The main reason for thirst, drink more, weight loss 5 years, left foot gangrene January. The patient diagnosed “diabetes” at a local hospital 5 years ago because of thirst, excessive drinking and weight loss. Intermittent taking hypoglycemic, hypoglycemic and other drugs, blood glucose fluctuations in 13mmol / L or so. A year ago, the left lower extremity edema, numbness, cold and acupuncture-like pain