36例糖尿病周围血管病患者行自体造血干细胞移植疗效观察

目的 观察糖尿病周围血管病患者在血管病变不同程度下行自体造血干细胞移植的临床疗效及预后相关因素.方法 36例糖尿病患者按下肢血管病变的程度分为轻度血管狭窄组(A组:20条下肢,血管狭窄<50%),中度血管狭窄组(B组:26条下肢,血管狭窄50%～70%),重度血管狭窄组(C组:25条下肢,血管狭窄>70%);全部患者均给予干细胞动员5 d,第5天采集外周血干细胞,将单个核细胞悬液按3 cm×3 cm间距进行缺血肢体移植术,术后第1、12、18个月定期观察三组的各项指标并进行综合评估,同时对移植预后的相关因素进行多元回归分析.结果 移植后12个月,三组踝肱指数(ABI)及经皮氧分压(TcPO2)均较移植前增加(P<0.05).18个月A、B两组ABI仍有增加(P<0.05),但C组与12个月时比较,差异无统计学意义.18个月A组有8条下肢(40%)、B组有8条下肢(31%)、C组有6条下肢(24%),复查有新生血管形成.年龄、病程、血压、餐后2 h血糖、糖化血红蛋白及TG均是影响移植后糖尿病周围血管病复发的重要因素.结论 糖尿病周围血管病患者在轻、中度血管病变时做自体造血干细胞移植,其远期疗效优于重度血管病变者,围手术期需密切监测血糖、血压、TG的情况,它们是影响预后的重要因素.

Clinical observation on 36 patients with diabetic peripheral angiopathy after autologous hemopoietic stem cell transplantation

Objective To observe the clinical effectiveness and prognostic factors of autologous hemopoietie stem cell transplantation on diabetic peripheral angiopathy patients under different degrees of vascular lesions. Methods Thirty-six patients with diabetic were divided into mild vascular stenosis group (group A: 20 lower extremities, vascular stenosis less than 50% ), moderate vascular stenosis group(group B :26 lower extremities, vascular stenosis of 50%-70% ) and severe vascular stenosis group (group C: 25 lower extremities, vascular stenosis greater than 70% ) according to the degree of vascular lesions. All patients were given the stem cell mobilization for 5 days, then peripheral hemopoietic stem cells were gathered on the last day and transplanted to ischemic limb by using monoeyte stem cell suspend liquid with 3 cm × 3 cm intervals.Each index of three groups was regularly observed ( 1th,12th and 18th month respectively after the operation)and comprehensive evaluated. Meanwhile,the transplantation prognostic factors (age, disease duration, post-prandial 2 hours blood glucose, glycated hemoglobin, blood pressure, triglycerides) were analyzed by multiple regression. Results Twelve months after transplantation, the ankle brachial index (ABI) and percutaneous oxygen pressure (TcPO2) of all three groups increased compared with that before the transplantation (P<0.05). In the 18th month after transplantation, the ABI still increased in group A and B (P< 0.05), and no significant changes were found in group C compared with that in the 12th month. Eighteenth month after transplantation, lower extremities of 8 patients (40%) in group A, 8 patients (31%) in group B and 6 patients (24%) in group C were examined to have neovascularizatian. Age, disease duration, blood pressure, post-prandial 2 hours blood glucose, glycated hemoglobin and triglycerides were all the important factors that affected diabetic peripheral angiopathy recurrence after transplantation. Conclusions The long-term effica-cy of stem cell transplantation on diabetic peripheral angiopathy patients at a mild to moderate degree is superior to that with severe vascular lesions. Close monitoring of blood glucose, blood pressure and triglycerides in the operation perinatal stage is required.They are the important prognostic indicators.