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.
ObjectiveTo summarize the latest research progress of intersphincteric fistula ligation in the treatment of anal fistula. MethodsThrough the retrieval of CNKI and PubMed literature database, the principle, clinical application and related improvement of LIFT were reviewed. ResultsLigation of intersphincteric fistula tract is a sphincter preserving surgery in recent years. Because it has the advantage of ensuring the integrity of the sphincter, less damage to the anal function after operation, the wound healing quickly and so on, it has been accepted by domestic and foreign scholars. ConclusionLIFT to cure anal fistula while ensuring the anal function integrity, is the development trend of anal fistula surgery, is worthy to be popularized.