Clinical distribution and antimicrobial resistance of carbapenem-resistant Enterobacteriaceae in Dongguan / 中国感染控制杂志

Objective To investigate the clinical distribution and antimicrobial resistance of carbapenem-resistant Enterobacteriaceae (CRE) in Dongguan.Methods CRE isolated from hospitalized patients in 22 secondary and above medical institutions which participated in bacterial monitoring in Dongguan between January 2015 and June 2016 were retrospectively analyzed,antimicrobial resistance was analyzed by WHONET 5.6 software.Results A total of 71 CRE isolates were detected,with a isolation rate of 0.34％ (71/20 713).53 strains(74.65％) of CRE were isolated from patients aged 15-60 years old;46 (64.79 ％) were from male patients;CRE were mainly isolated from patients in intensive care unit(36 strains,50.70 ％);the main specimen was sputum(34 strains,47.89 ％),followed by urine (11 strians,15.49 ％) and wound secretion(6 strains,8.45 ％);the main infection type was healthcare associated infection (64 strains,90.14 ％);CRE were mainly distributed in tertiary hospitals(56 strains,78.87 ％),the isolation rate of CRE in tertiary and secondary hospitals were 0.41 ％(56/13 677)and 0.21％(15/7 036) respectively.71 strains of CRE were all resistant to imipenem,resistance rate to meropenem was 81.12％,only amikacin and tobramycin had drug resistance rates of ＜40％ (21.38％ and 38.79％ respectively),resistance rate to trime thoprim/sulfamethoxazole was 48.23 ％,while resistance rates to fluoroquinolones,third-generation cephalosporins,and enzyme inhibitors were all＞60.Conclusion The isolation rate of CRE in Dongguan is lower than that of the whole nation and the other provinces,effective prevention and control measures should be taken according to the key population and departments that isolated CRE,antimicrobial use should be rational.

Clinical application of micro-implant anchorage for treatment of scissors bite on one-side posterior teeth / 华西口腔医学杂志

<p><b>OBJECTIVE</b>To evaluate the efficiency of micro-implant anchorage (MIA) for posterior teeth intruded and the result of the treatment of scissors bite on one-side posterior teeth.</p><p><b>METHODS</b>The study included 3 females and 1 male. All the overextruding upper posterior teeth were intruded by the MIA. The micro-implant screws were inserted into the buccal and lingual alveolar hone of the maxillary posterior teeth or the buccal alveolar hone of mandibular posterior teeth. About 0.833 N force was used to intrude the overgrowthing upper posterior teeth, and about 0.559 N force was used to draw buecally the low posterior teeth tilting lingually.</p><p><b>RESULTS</b>The overextruding upper posterior teeth were intruded 2.0 mm on average, the low posterior teeth tilting lingually were upreared buccally. All the MIA screws kept stable during the treatment, but there was a slight inflammation around the implant screws.</p><p><b>CONCLUSION</b>MIA could be used as an efficient method to correct scissors bite on one-side posterior teeth with intruding overgrowth upper posterior teeth, or uprearing buccally the tilting low posterior teeth.</p>