母婴同室新生儿皮肤感染金黄色葡萄球菌耐药性研究及同源性分析

Antimicrobial resistance and homology analysis of Staphyloccocus aureus isolated from neonates with skin infections

目的了解母婴同室新生儿皮肤感染金葡菌耐药状况,探讨其同源性,为指导临床治疗和预防控制感染提供依据。方法对北京市大兴区人民医院皮肤感染的新生儿皮损分泌物进行细菌培养、鉴定及药敏试验,应用脉冲场凝胶电泳方法进行基因分型。结果 新生儿皮肤感染率为2.1%;金葡菌13株,占30.2%;头孢唑林、阿莫西林或克拉维酸及哌拉西林或他唑巴坦对金葡菌具有良好的抗菌活性。脉冲场凝胶电泳示H组与I组图谱完全相同。结论治疗新生儿金葡菌所致皮肤感染首选头孢类抗生素、阿莫西林或克拉维酸、哌拉西林或他唑巴坦;预防和控制其感染,须加强对新生儿皮肤和脐部的护理。

Objective To investigate the antimicrobial resistance and homology analysis of Staphylococcus aureus （ S. aureus） isolated from with skin infections, thus to search for appropriate process to treat/prevent these skin disea-ses. Method Secretions of skin lesions from newborns with skin infections delivered in Obstetrics Department of Beijing Daxing People’s Hospital from Jan. 2012 to Jun. 2012 were collected,cultured and drug sensitivity test. Antibiotic resistances of S. aureus were determined. The genotype was detected with pulsed gel electrophoresis. Result Of 13 S. aureus isolated, the incidence was 30. 2%. Impetigo is the main disease of skin infection. S. au-reus was sensitive to cefazolin, amoxicillin/clavulanic acid and piperacillin/tazobactam. PFGE pattern of 13 strains showed 10 types, two type H and two type I which have the same pattern respectively. Conclusion The results sug-gest that effective clinical medication for skin and soft tissue infections caused by S. aureus are cefazolin, amoxicil-lin/clavulanic acid and piperacillin /tazobactam. It is important to disinfect all things the neonates may contact for preventing neonate infections caused by S. aureus.