Defining motility in the Staphylococci

The ability of bacteria to move is critical for their survival in diverse environments and multiple ways have evolved to achieve this. Two forms of motility have recently been described for Staphylococcus aureus, an organism previously considered to be non-motile. One form is called spreading, which is a type of sliding motility and the second form involves comet formation, which has many observable characteristics associated with gliding motility. Darting motility has also been observed in Staphylococcus epidermidis. This review describes how motility is defined and how we distinguish between passive and active motility. We discuss the characteristics of the various forms of Staphylococci motility, the molecular mechanisms involved and the potential future research directions

Morbimortalidade da reconstrução de transito intestinal colônica em hospital universitário: análise de 42 casos

OBJETIVOS: Analisar as características demográficas, a mortalidade e morbidade associada ao procedimento. MÉTODOS: Estudo retrospectivo dos casos de reconstrução intestinal colônica um hospital universitário. Todos os pacientes tiveram o cólon preparado por solução de manitol. RESULTADOS: Do total de 42 pacientes, 80,9% (n=34) eram do sexo masculino com idade média de 42 anos. Causas que levaram a confecção da ostomia: 50% traumáticas, 29% abdome agudo clínico. A colostomia terminal foi o tipo de ostomia preferencialmente realizada em 65% dos casos acompanhado pela colostomia em alça com 35% dos casos. A técnica empregada para a anastomose foi predominantemente a manual, realizada em 69,05% dos casos (n=29). O tempo médio de internação hospitalar foi de 8,74 dias. O índice de morbidade global foi de 26,2% (n=11), destacando-se a reoperação em 9,52% (n=4) e a fístula em 7,14% (n=3) dos casos. Não ocorreu infecção de ferida operatória nessa série. A mortalidade foi de 2,38% (n=1). CONCLUSÕES: Os resultados obtidos em um hospital universitário são semelhantes aos relatados na literatura mundial. Cuidados pré e pós operatórios adequados se somam a experiência do cirurgião nas cirurgias de reconstrução de trânsito. A escolha da técnica cirúrgica deve ser padronizada através de trabalho randomizado, permitindo adoção de protocolo.<br>OBJECTIVES: To study demographyc caractheristics, morbidity and mortality associated to the procedure. METHODS: Retrospective study of colostomy closure in 42 patients. Male sex was predominant (80,9%) with median age of 42 years. Causes of colostomy were traumatic in 50% and clinic acute abdomen in 29% of the cases. Terminal colostomy was the more frequent procedure (65%) followed by loop colostomy in 35% of the cases. The predominant anastomotic technique was manual (69,05%). The morbidity rate was 26,2%, including reoperation (9,52%) and colonic fistulae in 7,14% cases. No postoperative wound infection was observed. Overall mortality rate was 2,38%. CONCLUSION: The results observed in a university hospital are as good as reported in world literature. Adequate pre and postoperative care works together with surgeon experience on colostomy closure surgeries. The surgical technique must be adopted using a randomized study, allowing establishment of a protocol