RESUMO OBJETIVO: Caracterizar as artroplastias, calcular a taxa de infecção cirúrgica e identificar fatores de risco relacionados. MÉTODOS: Estudo de coorte retrospectivo. Os dados das cirurgias feitas entre 2010 e 2012 foram coletados em fontes documentais e analisados com auxílio de programa estatístico e testes exato de Fisher, tde Student e não paramétrico de Mann-Whitney e Wilcoxon. RESULTADOS: Foram analisadas 421 artroplastias totais em 346 pacientes, 208 de joelho e 213 de quadril; 18 (4,3%) pacientes infectaram; entre esses, 15(83,33%) foram reoperados e dois (15,74%) evoluíram para óbito. A prevalência de infecção em artroplastia total de quadril primária foi de 3%, em artroplastia total de joelho primária de 6,14% e em revisão de artroplastia total de joelho de 3,45%; Staphylococcus aureusfoi prevalente. O tempo de duração da cirurgia indicou uma tendência como fator de risco (p = 0,067). CONCLUSÃO: A prevalência de infecção em artroplastia total de joelho primária foi superior às demais e não foram identificados fatores de risco para infecção com significância estatística.

ABSTRACT OBJECTIVE: To characterize arthroplasty procedures, calculate the surgical infection rate and identify related risk factors. METHODS: This was a retrospective cohort study. Data on operations performed between 2010 and 2012 were gathered from documental sources and were analyzed with the aid of statistical software, using Fisher's exact test, Student'sttest and the nonparametric Mann-Whitney and Wilcoxon tests. RESULTS: 421 total arthroplasty procedures performed on 346 patients were analyzed, of which 208 were on the knee and 213 on the hip. It was found that 18 patients (4.3%) were infected. Among these, 15 (83.33%) were reoperated and 2 (15.74%) died. The prevalence of infection in primary total hip arthroplasty procedures was 3%; in primary total knee arthroplasty, 6.14%; and in revision of total knee arthroplasty, 3.45%. Staphylococcus aureuswas prevalent. The length of the surgical procedure showed a tendency toward being a risk factor ( p= 0.067). CONCLUSION: The prevalence of infection in cases of primary total knee arthroplasty was greater than in other cases. No statistically significant risk factors for infection were identified.

Background: The emergence of resistance has been demonstrated in cancer treatment centers where prophylaxis with fluoroquinolone is used. Objective: Considering the importance of epidemiological monitoring as a strategy in choosing protocols involving antibiotics, this study aimed to evaluate the emergence of quinolone resistance and changes in the local epidemiology in a hematopoietic stem cell transplant service. Methods: For this study, 60 positive cultures before the prophylactic use of levofloxacin (period A: 2007-2008) and 118 cultures after starting the use of prophylactic levofloxacin (period B: 2010-2011) were evaluated. Results: Resistance increased for all the different types of bacteria isolated (from 46.0% to 76.5%; p-value = 0.0002). Among Gram-negative bacteria, resistance increased from 21.4% to 60.7% (p-value = 0.0163) and among Gram-positive bacteria, it increased from 55.6% to 82.9% (p-value = 0.0025). The use of levofloxacin increased from 19.44 defined daily doses per 1,000 patient-days in period A to 166.64 in period B. The use of broad spectrum antibiotics remained unchanged. Considering bacteria associated with infection, 72 and 76 were isolated in periods A and B, respectively. There was a reduction in the rate of Gramnegative bacteria in cultures associated with infection (3.81 vs. 2.00 cultures/1,000 patientdays; p-value = 0.008). Conclusion: The study of prophylaxis with levofloxacin demonstrated that there was a decrease in infections by Gram-negative bacteria; however, bacterial resistance increased, even though the use of broad-spectrum antibiotics remained unchanged. Constant monitoring of local epidemiology combined with research on clinical outcomes is needed to evaluate the effectiveness of prophylaxis.

The work relates the use of flexible sticks in dressings of central venous catheter, in patients in the Intensive Care Unit. It shows that the technique, which was introduced during a period of high incidence of infections relating to central venous catheter, provided an opportunity to reduce the level of infections, controlled by the Hospital Infection Control Service. The work highlights that the new technique has been fully incorporated to the routine inside the hospital as a means to prevent and control infection in patients with central venous catheter.

O trabalho relata o uso de hastes flexíveis em curativos de cateter venoso central, em pacientes internados em Unidade de Terapia Intensiva. Mostra que a técnica, introduzida num período de surto de infecções relacionadas a cateter venoso central, oportunizou a redução dos índices de infecção, controlados pelo Serviço de Controle de Infecção Hospitalar. Ainda, destaca que a nova técnica foi totalmente implantada como rotina no hospital, como medida de prevenção e controle de infecções em pacientes com cateter venoso central.

Um estudo prospectivo sobre infecção hospitalar foi realizado por dois anos, no período de agosto de 1987 a julho de 1989 no berçário de alto risco do Hospital de Clínicas da Universidade Federal do Paraná. Foram identificadas as taxas mensais de infecção hospitalar com os agentes e a localização da infecção. A taxa média de infecção foi de 30%. Staphylococcus aureus/o; o agente etiológico mais comum. A infecção mais freqüente foi a cutâneo-mucosa. Medidas educativas foram o fator mais importante na redução das taxas.

A prospective study of nosocomial infections in a nursey was undertaken in the Hospital of University of Paraná. Infections were identified during a 2 year period from August 1987 to July 1989 with a monthly analysis of prevalence site and agents responsible for nosocomial infections. The biannual mean was 30%. Staphylococcus aureus was the most commonly isolated pathogen. The most common site of nosocomial infections was muco-cutaneous. Educational measures were the most important factor in reduction of nosocomial infection rates.