ObjectiveTo assess the effect of polyurethane gelatum grommet positioning and Mayfield head holder positioning under suboccipital retrosigmoid approach in acoustic neuroma resection on patients' facial crushing. MethodsRetrospective analysis of the clinical and nursing data of 90 patients treated by microsurgical surgery under the lateral prone position in our hospital from January 2013 to January 2014 was carried out. Patients in group A (n=28) were given grommet positioning, while those in group B (n=62) were given Mayfield head holder positioning, and then we compared the situation of facial crushing between the two groups. ResultsIn group A, 5 patients showed abnormality including 2 cases of skin injury in lower frontozygomatic and mandibular area, 2 cases of lower conjunctival edema and 1 of co-existing skin injury in lower zygomatic area and lower conjunctival edema, and the crushing rate was 17.86% in group A. In group B, the crushing rate was 1.61% with one case of mandibular skin injury. There was a significant difference between the two groups (χ2=5.778, P=0.016). ConclusionUnder suboccipital retrosigmoid approach for acoustic neuroma resection, Mayfield head holder positioning is better to avoid facial crushing.
ObjectiveTo systematically review quality of evidence-based pneumocystosis guidelines for children, compare the differences and similarities among recommendations, and to provide references for clinical application. MethodsDatabases such as TRIP, PubMed, CNKI, VIP, WanFang Data, CBM, U.S National Guideline Clearinghouse (NGC), and Guidelines International Network (GIN) were searched to collect evidence-based guidelines on medication therapy for children with pneumocystosis. Methodological quality of included guidelines was evaluated according to the AGREE Ⅲ instrument, and the differences and similarities among recommendations were compared. ResultsA total of 3 evidence-based guidelines concerning children with pneumocystosis were included, of which, 2 were made by the USA and 1 by international academic organizations. Only 1 guideline was especially suitable for children, while others were for children of different ages and adults. The results of AGREE Ⅲ scoring showed that, among 6 domains which were rated using the AGREE Ⅲ instrument, "scope and purpose", "stakeholder involvement", "rigor of development", "clarity and presentation" and "editorial independence" were scored more than 60%; while "applicability" was only scored 46%, 25% and 31%. Besides, the grading of evidence and grading of recommendations were different. The medication recommendations of different guidelines were not the same. ConclusionThe quality of 3 guidelines is not high, and the grading of evidence and the strength of recommendation are still needed to be unified. The target population and the recommendations in the guidelines are different.