ObjectiveTo systematically review methodological and reporting quality of systematic reviews/meta-analyses of interventions in the global research field on gliomas. MethodsDatabases including PubMed, EMbase, The Cochrane Library, CNKI and CBM were searched from inception to July 2013, for systematic reviews/meta-analyses of interventions in the research field on gliomas. Two reviewers independently screened literature. Then PRISMA and AMSTAR checklists were used to assess and analysis methodological and reporting quality of included studies. ResultsA total of 51 systematic reviews or meta-analyses were identified. The results showed that the weakness of methodological quality mainly contained lack of study design, incomprehensive of literature search, limited form of included publications, lack of assessing publication bias, lack of reporting of conflict of interest. The weakness of reporting quality included incomplete reporting of literature search, quality assessment, risk of bias and results (some studies lacked forest plots, estimated value of pooled results, 95%CI, and heterogeneity). ConclusionThere are problems at different levels regarding current methodological and reporting quality of systematic reviews/meta-analyses of interventions in the global research field on gliomas. The relevant researchers should improve the scientificity and standardization of systematic reviews/meta-analyses and report them according to the PRISMA statement.
ObjectiveTo systematically review the value of intra-operative ultrasound in diagnosis of tumor residue after resection of intracranial gliomas. MethodsSuch databases as PubMed, EMbase, The Cochrane Library, CBM, CNKI, WanFang Data and VIP were electronically searched for the diagnostic test about intra-operative ultrasound in diagnosis of tumor residue after resection of intracranial gliomas by March 31st, 2013. Meanwhile, search engines such as Google, Baidu were also used for relevant search. According to the inclusion and exclusion criteria, the literature was screened and the data were extracted. The methodological quality was evaluated in accordance with the quality assessment tool for diagnostic accuracy studies (QUADAS) and then meta-analysis was conducted using Meta-DiSc 1.4 software. ResultsA total of 10 studies involving 423 patients were included. The results of meta-analysis showed that the sensitivity, specificity, positive likelihood ratio, negative likelihood ratio and diagnostic odds ratio (DOR) were 0.78 (95%CI 0.74 to 0.82), 0.90 (95%CI 0.88 to 0.90), 5.12 (95%CI 2.86 to 9.16), 0.29 (95%CI 0.21 to 0.39) and 25.00 95%CI (13.27 to 47.10), respectively; and the AUC was 0.89. In the subgroup analysis, for low grade intracranial gliomas, the results of meta-analysis showed that the sensitivity, specificity and DOR were 0.87 (95%CI 0.77 to 0.94), 0.88 (95%CI 0.78 to 0.94) and 28.93 (95%CI 7.46 to 112.14), respectively, and the AUC was 0.92. For high grade gliomas, the results of meta-analysis showed that the sensitivity, specificity and DOR were 0.80 (95%CI 0.72 to 0.87), 0.67 (95%CI 0.53 to 0.79) and 7.20 (95%CI 3.04 to 17.09), respectively, and the AUC was 0.80. ConclusionIntra-operative ultrasound is useful for the diagnosis of tumor residue after resection of intracranial gliomas, especially for low grade gliomas.