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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

Infecções cirúrgicas em ortopedia causadas por micobactérias de crescimento rápido: revisão integrativa da literatura / Orthopedic surgical infections caused by rapidly growing mycobacteria: Integrative Review of Literature

Marcela Padilha Facetto Azevedo 03 July 2012 (has links)
As micobacterioses são doenças causadas por micobactérias não tuberculosas pertencentes ao gênero Mycobacterium. As infecções por micobactéria de crescimento rápido (MCR) estão fortemente relacionadas às falhas nos processos de limpeza, desinfecção e esterilização de produtos médicos. Objetiva-se, analisar a ocorrência de infecções de sítio cirúrgico, por MCR, em pacientes submetidos a procedimentos ortopédicos, por meio de revisão integrativa; caracterizar as infecções de sítio cirúrgico (ISC) por MCR; verificar a presença de fatores que possam explicar as infecções de sítio cirúrgico por MCR. Como método utilizou-se a revisão integrativa, a qual contém as seguintes etapas: elaboração da questão da pesquisa; estabelecimento de critérios de inclusão e exclusão; definição das informações a serem extraídas do estudo; avaliação dos estudos incluídos; interpretação dos resultados e apresentação da revisão. No resultado foram encontrados 21 artigos, a maioria publicada no idioma inglês, e dois em francês, variando quanto ao continente e país de origem de edição. O tempo entre a cirurgia e o início dos sintomas foi mencionado para os 34 (100%) pacientes, mas a análise foi feita para 33 pacientes, pois se considerou apenas o primeiro episódio de infecção por MCR. O tempo médio para o diagnóstico da ISC foi de 653,6 dias (93 semanas), desvio padrão ±1.343 dias (192 semanas), mediana de 80 dias (11,4 semanas) e moda de 90 dias (três meses). Quanto aos sinais e sintomas relatados pelos pacientes, os mais prevalentes foram: dor (61,8%), secreção (50,0%), edema (41,2%), febre (41,2%), eritema (26,5%), fístula (20,6%), calor (14,7%), tremor (5,9%), abscesso (5,9%) e hematoma (3,0%). Em relação às intervenções cirúrgicas efetuadas nos pacientes, após o diagnóstico de ISC, a mais frequente foi a antibioticoterapia (100%), remoção de prótese total (50,0%), drenagem (41,2%), debridamento cirúrgico (41,2%), irrigação (23,5%), revisão cirúrgica (17,6%) troca da prótese total (8,8%), remoção de componentes da prótese (8,8%) e reimplante da prótese (2,9%). A identificação do(s) agente(s) etiológico(s) da(s) ISCs não seguiu uma metodologia de rotina, o que pode influenciar na confiabilidade do resultado, principalmente quanto à espécie do agente etiológico. Quanto à espécie de MCR isoladas dos sítios de infecção constatamos que M.fortuitum foi a mais prevalente; tendo sido isolados também M.chelonae, M.abscessus, M.goodii, M.smegmatis, M.farcinogenes e M.wolinskyi. Em relação às fontes investigadas, tem-se: provavelmente de origem iatrogênica, hábito do médico residente de ortopedia, presente nas cirurgias, de utilizar a hidromassagem antes de operar; componentes líquidos ou pó do cimento metilmetacrilato ou a prótese metálica; injeções de cortisona por sinovite crônica, durante cinco anos, antes da cirurgia; sistema de ar condicionado ou a solução de imersão para enxágue da prótese; sabão na água, onde foi realizada a imersão do pé (recomendação do podólogo); parafuso bioabsorvível utilizado na cirurgia; injeções intra-articulares de dexametasona; no entanto, nenhuma delas pode ser confirmada. Quando feito o teste de senbilidade observou-se que as cepas apresentavam em torno de 80% de sensibilidade à amicacina, claritromicina e ciprofloxacina. / The mycobacteriosis is a disease caused by nontuberculous mycobacteria belonged to the Mycobacterium genus. Infections due to rapidly growing mycobacteria (RGM) are strongly related to failures in the processes of cleaning, disinfection and sterilization of medical products. The objective is to analyze the occurrence of surgical site infections by RGM in patients undergoing orthopedic procedures through integrative review; to characterize the surgical site infections (SSI) by RGM; and to verify the presence of factors that may explain the surgical site infections by RGM. The method was the integrative review, which includes the following steps: elaboration of the research question; establishment of inclusion and exclusion criteria; definition of information to be extracted from the study; assessment of the included studies; interpretation of results; and presentation of the review. 21 articles were found, mostly published in English and two in French, varying considering the continent and country of the origin of the article. The time between surgery and onset of symptoms was reported by 34 (100%) patients, but the analysis was performed for 33 patients because it was considered only the first episode of infection by RGM. The average time to diagnosis of SSI was 653.6 days (93 weeks), standard deviation ± 1343 days (192 weeks), median of 80 days (11.4 weeks) and mode of 90 days (three months). The most prevalent signs and symptoms reported by patients were: pain (61.8%), secretion (50.0%), edema (41.2%), fever (41.2%), erythema (26.5%), fistula (20.6%), heat (14.7%), tremor (5.9%), abscess (5.9%) and hematoma (3.0%). Regarding surgical interventions performed in patients after diagnosis of SSI, the most frequent was antibiotic therapy (100%), removal of dentures (50.0%), drainage (41.2%), surgical debridement (41.2%), irrigation (23.5%), surgical revision (17.6%), replacement of dentures (8.8%), removal of the prosthetic components (8.8%), and reimplantation of the prosthesis (2.9%). The identification of etiological agent(s) of SSI did not follow a routine methodology, which can influence the reliability of the results, especially regarding the kind of etiologic agent. Related to the kind of isolated RGM of the infection sites, it was found that M.fortuitum was the most prevalent; being also isolated the M.chelonae, M.abscessus, M.goodii, M.smegmatis, M.farcinogenes and M.wolinskyi. Regarding the sources investigated: probably from iatrogenic origin, it is habits of residents in orthopedics during surgeries to use hydromassage before operating; liquid components or cement powder of methylmethacrylate or metal prosthesis; cortisone injections for chronic synovitis during 5 years before surgery; air conditioning system or soaking solution to rinse the denture; soap in the water, where it was accomplished the immersion foot (podiatrist\'s recommendation); bioabsorbable screws used in surgery; intraarticular injections of dexamethasone; however, none of them can be confirmed. When the sensitivity test was done, it was observed that the strains had approximately 80% of sensitivity to amikacin, clarithromycin, ciprofloxacin. Quando feito o teste de senbilidade observou-se que as cepas apresentavam em torno de 80% de sensibilidade à amicacina, claritromicina e ciprofloxacina.
32

Infections in intensive care; epidemiology and outcome

Ylipalosaari, P. (Pekka) 15 May 2007 (has links)
Abstract Systematic analyses of infections in critical illness are sparse and mostly restricted to specific infection categories. Thus, a prospective study was carried out in a medical-surgical ICU during 14 months on patients whose ICU stay was longer than 48 h. The prospectively gathered data included detailed patient history, infection survey, severity of illness scores (APACHE II, SOFA), resource use, short-term and long-term outcome and quality of life following hospital discharge. Altogether 335 patients were included, of whom 251 (74.9%) had an infection on admission; 59.3% had a community-acquired infection (CAI) and 40.7% a hospital-acquired infection (HAI), while 84 (25.1%) did not have any infection (NI). APACHE II scores and ICU or hospital mortality rates did not differ between the groups. The median hospital stay was longer in the HAI than in the CAI or NI groups. Eighty (23.9%) of the 335 patients developed an ICU-acquired infection (48 per 1000 patient days): ventilator-associated pneumonia (VAP) in 33.8% of the cases, central catheter-related (CRI) or primary bloodstream infections in 6.3% and urinary tract infections in 1.3%, while the corresponding device-related incidences per 1000 days were 18.8, 2.2 and 0.5, respectively. ICU-acquired infection was an independent risk factor for hospital mortality. It doubled the risk for hospital mortality in patients with an infection on admission and caused a threefold the risk in patients without an infection on admission and an almost fourfold increase in the use of nursing resources. Of the 272 hospital survivors, 83 (30.5%) died after discharge during the median follow-up of 17 weeks. Infection status on admission or during the ICU stay did not affect long-term mortality. ICU-acquired infection did not have an impact on patients' quality of life. The current general level of health compared to the status before ICU admission did not differ between the groups, either. Only 36% of those employed resumed their previous jobs. Three-fourths of patients had an infection on admission, while nearly one fourth acquired an ICU infection. The high VAP rate suggests a need for re-evaluation of preventive measures, whereas the low CRI indicates more successful prevention. ICU-acquired infection was a significant risk factor for hospital mortality, but did not affect patients' long-term survival or quality of life.
33

Patient Room Design that Integrates the Personalized Ventilation System for Cross-Infection Control

Li, Jiaru 11 October 2021 (has links)
Many airborne diseases such as Coronavirus variants are spread from person to person by indoor air movement. This is of particular concern in healthcare environments such as hospitals. There is a significant body of research that suggests that indoor ventilation strategies such as personalized ventilation systems my help reduce the spread of these viruses. While there are studies related to the efficacy of air movement from personalized ventilation, there are very few studies that explore how best to integrate these systems into the design process for hospital patient rooms. This study focuses on how to integrate personalized ventilation (PV) and displacement ventilation (DPV) systems into patient room design. The aims of this study are to first, develop a procedure using the Choosing By Advantages approach to make design decisions related to the implementation for personalized ventilation and displacement ventilation in private and semi-private patient rooms to prevent cross-infection. Secondly, using this approach, design solutions are proposed for patient room layouts with PV and DPV in different locations. The study proposes the best locations and components of the PV and DPV ventilation air supply and exhaust. Further practical models/simulation rooms are required to test the impact of PV systems on patients' and nurses' daily activities. / Master of Science / Many airborne diseases such as Coronavirus variants are spread from person to person by indoor air movement. This is of particular concern in healthcare environments such as hospitals. New personalized ventilation systems place ventilation air directly at the patient bed and consequently can reduce the spread of these viruses by effectively managing in-room air movement. This study explores how best to make design decisions for the implementation of personalized ventilation systems into hospital patient rooms. Applying this decision-making approach, design solutions are proposed that integrate personalized ventilation with commonly used displacement ventilation in patient rooms.
34

Characterization of clinical enterococcal isolates in Swedish hospitals : studies on genetic relatedness and high-level gentamicin resistance /

Saeedi, Baharak, January 2005 (has links) (PDF)
Diss. (sammanfattning) Linköping : Linköpings universitet, 2005. / Härtill 4 uppsatser.
35

Epidemiology and differentiation of clinical and environmental strains of Pseudomonas aeruginosa

Gooch, James Julian. January 1977 (has links)
Thesis (D.P.H.)--University of Michigan.
36

Epidemiology and differentiation of clinical and environmental strains of Pseudomonas aeruginosa

Gooch, James Julian. January 1977 (has links)
Dissertation (D.P.H.)--University of Michigan.
37

Sjuksköterskestudenters kunskap och attityder om hygienrutiner samt faktorer som påverkar följsamheten : En litteraturöversikt / Nursing students’ knowledge and attitudes about hygiene routines and factors that affects their compliance : A literature review

Westerström, Karolina, Lundin, Nathalie January 2015 (has links)
Bakgrund: Vårdrelaterade infektioner är ett globalt problem och leder till omfattande patientlidande och kostnader för samhället. God handhygien är det mest grundläggande sättet att förebygga vårdrelaterade infektioner. Det ställs krav på svensk hälso- och sjukvård att vårdmiljön skall främja hälsa och vara av en god hygienisk standard. Som sjuksköterskestudent har man ett ansvar att ta till sig den kunskap som är nödvändig för sin kommande roll som sjuksköterska. Sjuksköterskestudenter upplever dock en osäkerhet på grund av att de saknar kunskap i hygienrutiner skall tillämpas. Syfte: Att belysa sjuksköterskestudenters kunskap och attityder om hygienrutiner samt faktorer som påverkar deras följsamhet. Metod: En litteraturöversikt baserad på tolv vetenskapligt granskade artiklar med kvalitativ och kvantitativ design. Artiklarna togs fram i databaserna Cinahl Complete och PubMed. Dessa analyserades med hjälp av Fribergs analysmetod. Resultat: Resultatet sammanfattades i fyra huvudkategorier: Kunskapsläget hos sjuksköterskestudenter, Attityder om infektionsförebyggande åtgärder, Sociala betydelser – Influenser från vårdpersonal och Organisatoriska faktorer. Författarna fann att kunskapen om hygienrutiner hos sjuksköterskestudenter var allmänt låg. Trots detta fanns en positiv attityd bland studenterna som betonade att de ville få tillräcklig kunskap och erfarenheter. De ville inte ha orsakat att någon drabbats av en vårdrelaterad infektion. Diskussion: Resultatet diskuterades utifrån Florence Nightingales bok Notes on Nursing och begreppet vårdande. / Background: Healthcare-associated infections are a global problem and leads to sustained patient suffering and costs to society. Satisfactory hand hygiene is the most basic way to prevent health care-associated infections. The requirement for Swedish health care is to create an environment that will promote health and be of clinical hygiene standard. A nursing student has a responsibility to absorb the knowledge that is essential for their future role as a nurse. Nursing students, however, experience an uncertainty of application due to the lack of knowledge of hygiene. Aim: To elucidate nursing students’ knowledge and attitudes about hygiene routines and factors that affects their compliance. Method: A literature review based on twelve peer-reviewed articles with qualitative and quantitative design. The articles were found in the databases Cinahl Complete and PubMed. Further the articles were analysed by using the analysis method of Friberg. Results: The result was summarized in four main categories: Nursing students’ state of knowledge, Attitudes about infection prevention, Social significance - Influences from health care professionals and Organizational factors. The authors found that knowledge about hygiene routines of nursing students was generally low. Despite this, there is a positive attitude among students that emphasizes that they wanted to acquire adequate knowledge and experience. They did not want to be responsible for causing someone a healthcare-associated infection. Discussion: The results were discussed based on Florence Nightingale's book Notes on Nursing and the concept of caring.
38

Aspects of air turbine handpiece sterilization and failure

Chau, S. W., 周甦華. January 2001 (has links)
published_or_final_version / Dentistry / Master / Master of Dental Surgery
39

Avaliação da integridade de luvas cirúrgicas em um hospital oncológico do interior paulista / Evaluation of the integrity of surgical gloves in an oncological hospital in the state of São Paulo

Luize, Paula Batista 11 May 2018 (has links)
Introdução: a utilização de luvas cirúrgicas estéreis é uma estratégia fundamental para a prevenção de infecção do sítio cirúrgico e para a proteção da equipe cirúrgica. Entretanto é comum a ocorrência de perfurações de luvas durante os procedimentos cirúrgicos as quais, em sua maioria, não são percebidas pelos profissionais. Objetivos: testar a associação entre a ocorrência de perfuração de luvas cirúrgicas e o número de cirurgiões em campo, o tempo de duração da cirurgia, o tipo de cirurgia, o tipo de abordagem cirúrgica e a especialidade cirúrgica. Materiais e Métodos: trata-se de um estudo de corte transversal realizado num hospital especializado em oncologia do interior paulista. A população do estudo foi composta por 3.966 luvas utilizadas em 359 cirurgias realizadas no referido hospital, no período de 01 de janeiro a 28 de fevereiro de 2018. A avaliação da integridade das luvas cirúrgicas foi realizada por meio de análise visual e da insuflação de líquido, conforme a norma EN 455-1. Os dados foram analisados por meio de estatística descritiva e pela técnica de regressão logística multivariada, utilizando-se o programa estatístico IBM SPSS Statistics versão 21. Resultados: Das 359 cirurgias analisadas, 145 (40,4%) cirurgias apresentaram luvas perfuradas. Das 3.966 luvas coletadas, 254 (6,4%) apresentaram perfuração. Do total de perfurações identificadas, 163 (64,2%) ocorreram na mão esquerda, atingiram o dedo indicador 94 (37,0%). As varáveis associadas à perfuração de luvas identificadas no modelo final foram cirurgias com tempo de duração acima de 120 minutos (OR: 3,06; IC 95%: 1,52 - 6,14) e cirurgias realizadas pelas especialidades da Ortopedia (OR: 4,40; IC95%: 2,36 - 8,20), do Tórax (OR: 3,28; IC95%: 1,75 - 6,17), da Urologia (OR: 2,97; IC95%: 1,53 - 5,76) e do Digestivo Baixo (OR: 2,35; IC95%: 1,22 - 4,54). Ressalta-se que as cirurgias realizadas por vídeo se constituíram num fator de proteção (OR: 0,35; IC95%: 0,22 - 0,56). Conclusão: o presente estudo confirmou a associação entre a perfuração de luvas e tempo de duração da cirurgia acima de 120 minutos e especialidades cirúrgica, além disso, as cirurgias realizadas por vídeo se constituíram como um fator de proteção. Acredita-se que os resultados obtidos poderão subsidiar a proposição de medidas de prevenção e consequentemente contribuir para a segurança dos pacientes e dos profissionais da área da saúde / Introduction: the use of sterile surgical gloves is a fundamental strategy for the prevention of infection of the surgical site and for the protection of the surgical team. However, perforated gloves are common during surgical procedures which, for the most part, are not perceived by professionals. Objective: to test the association between the occurrence of surgical glove perforation and the number of surgeons in the surgery, the duration of the surgery, the type of surgery, the type of surgical approach and the surgical specialty. Materials and Methods: this is a crosssectional study conducted at a specialized hospital in oncology in the state of São Paulo. The study population consisted of 3.966 gloves used in 359 surgeries performed at the referred hospital, from January 1 to February 28, 2018. The evaluation of surgical glove integrity was performed through visual analysis and fluid insufflation, in accordance with EN 455-1. Data were analyzed using descriptive statistics and the multivariate logistic regression technique using the IBM SPSS Statistics version 21 statistical program. Results: of the 359 surgeries analyzed, 145 (40,4%) surgeries had perforated gloves. Of the 3.966 gloves collected, 254 (6,4%) presented perforation. Of the total number of perforations identified, 163 (64,2%) occurred in the left hand, reaching the index finger 94 (37,0%). The variables associated with the perforation of gloves identified in the final model were surgeries with duration time over 120 minutes (OR: 3,06; 95% CI: 1,52 - 6,14) and surgeries performed by Orthopedics specialties (OR: 4,40; 95% CI: 2,36 - 8,20), Thorax (OR: 3.28; 95% CI:1.75 - 6.17), Urology (OR: 2,97; 95% CI: 1,53 - 5,76) and the Low Digestive (OR: 2.35; 95% CI: 1,22 - 4,54). It should be emphasized that the surgeries performed by video were constituted as a protection factor (OR: 0,35; 95% CI: 0,22 - 0,56). Conclusion: the present study confirmed the association between the perforation of gloves and the duration of surgery over 120 minutes and surgical specialties, besides that the surgeries performed by video were constituted as a protection factor. It is believed that the results obtained may support the proposal of preventive measures and consequently contribute to the safety of patients and health professionals
40

Fatores associados à ocorrência de infecções relacionadas à assistência a saúde em pacientes submetidos a cirurgia cardíaca / Factors related to healthcare-associated infections in patients submitted to thoracic surgery

Silva, Quenia Cristina Gonçalves da 26 April 2017 (has links)
Introdução: As doenças cardiovasculares continuam sendo a principal causa de morte no Brasil e as cirurgias cardíacas são consideradas um procedimento de alta complexidade e apesar de melhorar a sobrevida e qualidade de vida dos indivíduos não está isento de riscos. Umas das principais complicações no pós-operatório é a infecção. Objetivo: identificar os fatores de risco associados à ocorrência de IRAS em pacientes submetidos à cirurgia cardíaca em um hospital, público, geral e de ensino, de Minas Gerais, no período de julho de 2005 a novembro de 2015. Métodos: trata-se de um estudo retrospectivo, de corte transversal, com abordagem quantitativa, que analisou 725 prontuários de pacientes adultos submetidos à cirurgia cardíaca. Ressalta-se que o paciente foi considerado no estudo uma única vez. Para a coleta de dados utilizou-se um instrumento contendo variáveis sociodemográficas, clínicas e referentes ao perioperatório o qual foi validado quanto à forma e conteúdo por cinco especialistas na temática. Os dados foram inseridos em uma planilha eletrônica do programa Excel® versão para Windows XP® validados por dupla entrada (digitação) para verificação de inconsistências e após a correção dos erros, os dados foram exportados para o programa Statistical Package for the Social Sciences (SPSS) versão 18.0 para Windows XP® onde foi construído o banco definitivo e procedeu-se a analise estatística descritiva e analítica Resultados: a população do presente estudo foi constituída por 725 prontuários, houve predominância do sexo feminino, média de idade de 55,8 anos e a taxa global de infecção relacionada à assistência à saúde (IRAS) foi de 26,9%, sendo a infecção do trato respiratório (20,8%) a mais frequente, seguida por infecção do sítio cirúrgico (ISC) (8,1%). Os principais preditores para a ocorrência de IRAS foram doença pulmonar obstrutiva crônica (DPOC), ter apresentado intercorrência no intraoperatório, tempo de intubação > 24 horas, reintubação e hemotransfusão no pós-operatório. A incidência de óbito foi maior entre os pacientes que desenvolveram IRAS (30,3%) quando comparado com os que não tiveram infecção (4,3%). O tempo médio de permanência hospitalar pós-operatória foi maior para os pacientes com IRAS (23,4 dias). Conclusão: O presente estudo permitiu identificar os principais preditores para a ocorrência de IRAS nos pacientes submetidos à cirurgia cardíaca. Medidas direcionadas para a promoção da saúde e para controle de IRAS durante a hospitalização podem contribuir para minimizar esse evento e garantir uma assistência à saúde mais segura / Introduction: Cardiovascular diseases are still the main cause of death in Brazil, and thoracic surgeries are considered a high-complexity procedure, as despite increasing the survival and improving the quality of life of individuals, it is not risk free. Infection is one of the main complications in the post-operative period. Objective: to identify the risk factors associated with the occurrence of healthcare-associated infections (HAI) in patients submitted to thoracic surgery in a public general teaching hospital, in Minas Gerais, from July 2005 to November 2015. Methods: a retrospective, cross section study, using a quantitative approach, was developed to analyze 725 medical records of adult patients submitted to thoracic surgery. It is noteworthy that patients were considered only once in the study. Data were collected using an instrument containing sociodemographic and clinical variables, as well as data on the perioperative period, which was validated as for its face and content by five experts on the theme. The collected data were inserted into an Excel® for Windows XP® spreadsheet and validated by double entry (typing) in order to verify the existence of inconsistencies and, after the correction of errors, the data were exported to the Statistical Package for the Social Sciences (SPSS) version 18.0 for Windows XP®, where the final database was built, proceeding to a descriptive and analytical statistical analysis. Results: the population of the study was made up of 725 medical records, in which there was a predominance of women, with a mean age of 55.8 years and an overall rate of HAI of 26.9%, with respiratory tract infections (20.8%) being the most frequent, followed by surgical site infection (8.1%). The main predictors for the occurrence of HAI were chronic obstructive pulmonary disease, having had a complication in the intraoperative period, length of intubation > 24 hours, reintubation and hemotransfusion in the post-operative period. The incidence of death was higher among patients who developed HAI (30.3%) when compared to those who did not have an infection (4.3%). The mean length of post-operative hospital stay was higher among patients with HAI (23.4 days). Conclusion: The present study allowed to identify the main predictors for the occurrence of HAI in patients submitted to thoracic surgery. Measures targeted at health promotion and HAI control during hospitalization can contribute to minimize this event and guarantee the delivery of safe health care

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