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脑卒中后痉挛足患者A型肉毒毒素肌注疗效及其最佳治疗剂量探讨 被引量:6

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摘要 目的比较不同浓度、剂量的A型肉毒毒素(BT-A)对脑卒中后痉挛足患者的治疗作用,探讨最佳治疗剂量及浓度。方法脑卒中后痉挛足患者49例,应用随机数字表法将患者分为4组:A组,BT-A低剂量(A 200 U)低浓度(A 50 U/m L);B组,BT-A低剂量高浓度(200 U,100 U/m L);C组,BT-A高剂量低浓度(400 U,50 U/m L);D组,BT-A高剂量高浓度(400 U,100 U/m L)。注射靶肌肉为患侧小腿三头肌、胫后肌,分别于注射前,注射后4 d、1周、2周、4周、12周进行Ashworth分级(MAS)、起立-行走时间(TUG)、步速(10 m步行时间)、步行功能评定。并监测不良反应。结果各组一般资料如年龄、性别、病变部位、病变性质以及注射前的MAS、TUG、步速等差异无统计学意义(P均〉0.05)。注射后第4天,A、B组各评价指标无改变,C、D组MAS评分降低,与其注射前及A、B组之间比较差异有统计学意义(P均〈0.05)。注射后1周,A、B组MAS评分较其注射前以及第4天时明显改善(P均〈0.05)。注射后2周,各组MAS显著改善(P均〈0.05),但步速、步行功能及TUG变化无统计学意义(P均〉0.05);4周时A、B组无明显变化,后两组仍有改善,与注射前、注射后2周时比较差异有统计学意义(P均〈0.05);12周时,A、B组MAS恢复接近原来状态,C、D组仍保持较好效果,MAS维持在2周左右的水平,持续12周以上,MAS、步速、步行功能、TUG等与注射前比较差异有统计学意义(P均〈0.05))。结论 BT-A可改善脑卒中患者痉挛足踝关节活动度以及独立步行能力;BT-A起效时间主要集中于第4~7天,维持3个月或更长时间;400U、50 U/m L是BT-A最优化剂量和浓度。
出处 《山东医药》 CAS 北大核心 2016年第17期80-82,共3页 Shandong Medical Journal
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