Objective: To overview the methodological quality, report quality and evidence quality of the systematic review (SR) of acupuncture for vascular cognitive impairment ( VCI ).
Methods: The SRs regarding acupuncture for VCI were searched in PubMed, Cochrane Library, EMbase, CNKI, SinoMed, Wanfang and VIP databases. The retrieval period was from the establishment of the database to September 24, 2020. The report quality, methodological quality and evidence quality of the included SRs were evaluated by PRISMA statement, the AMSTAR 2 tool and the GRADE system.
Results: A total of 22 SRs were included, including 102 outcome indexes. The methodological quality was generally low, with low scores on items 2, 5, 7, 10, 14, 15 and 16. The report quality was good, with scores ranging from 19 points to 24.5 points. The problems of report quality were mainly reflected in the aspects of structural abstract, program and registration, other analysis and funding sources. The level of outcome indexes of SRs was mostly low or very low, and the main leading factor was limitation, followed by inconsistency and inaccuracy.
Conclusion: Acupuncture for VCI is supported by low quality evidence of evidence-based medicine, but the methodological quality and evidence body quality of relevant SRs are poor, and the standardization is needed to be improved.
目的：对针刺治疗血管性认知障碍的系统评价（SR）进行方法学质量、报告质量和证据质量等级的再评价。方法：计算机检索PubMed、Cochrane Library、EMbase、中国期刊全文数据库（CNKI）、中国生物医学文献数据库（SinoMed）、万方数据库（Wanfang）、维普数据库（VIP）收录的中英文公开发表的针刺治疗血管性认知障碍的SR，检索时限均为建库至2020年9月24日。采用PRISMA声明、AMSTAR 2工具和GRADE分级系统分别评价所纳入SR的报告质量、方法学质量和证据质量。结果：最终纳入22篇SR，包含102个结局指标。方法学质量整体偏低，得分较差的条目为条目2、5、7、10、14、15、16。22篇SR的报告质量较好，得分在19~24.5分，报告质量问题主要体现在结构式摘要、方案与注册、其他分析及资金支持方面。SR结局指标的等级大部分为低或极低，导致降级的最主要因素为局限性，其次为不一致性和不精确性。结论：针刺治疗血管性认知障碍有低质量循证医学证据支持，但相关系统评价的方法学质量及证据质量较差，规范性仍有待提高。.
Keywords: AMSTAR 2; GRADE; PRISMA; acupuncture; overview of systematic review; vascular cognitive impairment (VCI).