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1.
J Perianesth Nurs ; 38(3): 382-393, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-36609132

RESUMO

PURPOSE: This quality improvement project implemented job-related education for registered nurses (RNs) completing preoperative anesthesia interviews (PAIs) to increase their knowledge and confidence, improve completeness of documented preoperative interviews, and decrease day of surgery (DOS) cancellations. DESIGN: Pre/post implementation design and retrospective chart review. METHODS: An educational module on PAIs was created and RNs working in the pre-admission testing (PAT) clinic were asked to complete the module. Pre and post implementation data was collected on RN knowledge and confidence, assessment completeness, and DOS cancellations. FINDINGS: Knowledge and confidence increases were not statistically significant, although several interview components within PAI documentation improved with statistical significance. Overall DOS cancellations, although not statistically significant, were found to decrease, 1.3% to 1.2%. CONCLUSIONS: Registered nurses' knowledge, confidence and PAI completeness improved after completing the educational module with anesthetic considerations. Patients seen at the PAT clinic for PAIs before the DOS allowed for patient optimization and education leading to decreased preventable DOS cancellations.


Assuntos
Anestesia , Enfermeiras e Enfermeiros , Humanos , Melhoria de Qualidade , Competência Clínica , Estudos Retrospectivos
2.
Int J Med Microbiol ; 312(1): 151546, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34922099

RESUMO

INTRODUCTION: Enterococcus faecium is an opportunistic pathogen that has become one of the leading causes of hospital acquired infection that are resistant to multiple critically important antimicrobials. AIM: The objective of the study was to describe the molecular characteristics and relationship between major strains of E. faecium harbouring the van operon and to determine if the strains had increasing virulence and antimicrobial resistance determinants over time. METHODS: E. faecium harbouring the van operon detected using PCR from surveillance rectal swabs of patients that were admitted to high-risk units at a Perth teaching hospital from 2001 to 2015 were retrospectively analysed using a whole genome sequencing and bioinformatics approach. RESULTS: ST18, ST78, ST80, ST173, ST203 and ST555 were identified as the major STs accounting for 93.7% of E. faecium isolates. Except for ST173, major STs identified at Royal Perth Hospital (RPH) have been reported across Australia and internationally. Isolates from each ST formed independently branched phylogenetic clusters with each harbouring unique virulence and antimicrobial resistance profiles. Depending on the ST, different genes conferring resistance to similar antimicrobial classes were identified. Except for ST80 which harboured the vanA type operon, all major strains harboured the vanB operon conferring only vancomycin resistance. CONCLUSION: Major strains of E. faecium isolated over 15-years showed unique virulome and resistome profiles with no indication of increasing virulence or antimicrobial resistance determinants. Strains were distantly related and the acquisition of different genes encoding similar antimicrobial resistances suggest the independent evolution of each strain. DATA SUMMARY: The whole genome sequences of all isolates from this study are accessible from the NCBI-SRA database under project number PRJNA575940 and PRJNA524213. Published reference sequence Aus0004 was obtained from NCBI-SRA under project number PRJNA86649 DOI:10.1128/JB.00259-12.


Assuntos
Enterococcus faecium , Infecções por Bactérias Gram-Positivas , Antibacterianos , Enterococcus faecium/genética , Hospitais de Ensino , Humanos , Testes de Sensibilidade Microbiana , Epidemiologia Molecular , Óperon , Filogenia , Estudos Retrospectivos , Austrália Ocidental
3.
BMC Genomics ; 19(1): 165, 2018 02 27.
Artigo em Inglês | MEDLINE | ID: mdl-29482499

RESUMO

BACKGROUND: Neisseria gonorrhoeae causes gonorrhoea, the second most commonly notified sexually transmitted infection in Australia. One of the highest notification rates of gonorrhoea is found in the remote regions of Western Australia (WA). Unlike isolates from the major Australian population centres, the remote community isolates have low rates of antimicrobial resistance (AMR). Population structure and whole-genome comparison of 59 isolates from the Western Australian N. gonorrhoeae collection were used to investigate relatedness of isolates cultured in the metropolitan and remote areas. Core genome phylogeny, multilocus sequencing typing (MLST), N. gonorrhoeae multi-antigen sequence typing (NG-MAST) and N. gonorrhoeae sequence typing for antimicrobial resistance (NG-STAR) in addition to hierarchical clustering of sequences were used to characterize the isolates. RESULTS: Population structure analysis of the 59 isolates together with 72 isolates from an international collection, revealed six population groups suggesting that N. gonorrhoeae is a weakly clonal species. Two distinct population groups, Aus1 and Aus2, represented 63% of WA isolates and were mostly composed of the remote community isolates that carried no chromosomal AMR genotypes. In contrast, the Western Australian metropolitan isolates were frequently multi-drug resistant and belonged to population groups found in the international database, suggesting international transmission of the isolates. CONCLUSIONS: Our study suggests that the population structure of N. gonorrhoeae is distinct between the communities in remote and metropolitan WA. Given the high rate of AMR in metropolitan regions, ongoing surveillance is essential to ensure the enduring efficacy of the empiric gonorrhoea treatment in remote WA.


Assuntos
Farmacorresistência Bacteriana , Gonorreia/microbiologia , Epidemiologia Molecular/métodos , Neisseria gonorrhoeae/genética , Neisseria gonorrhoeae/isolamento & purificação , Antibacterianos/farmacologia , Análise por Conglomerados , DNA Bacteriano , Doenças Endêmicas , Genômica , Gonorreia/epidemiologia , Gonorreia/genética , Humanos , Tipagem de Sequências Multilocus/métodos , Filogenia , Austrália Ocidental/epidemiologia , Sequenciamento Completo do Genoma/métodos
4.
Clin Infect Dis ; 63(12): 1591-1598, 2016 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-27682063

RESUMO

BACKGROUND: Antimicrobial resistance (AMR) by Neisseria gonorrhoeae is considered a serious global threat. METHODS: In this nationwide study, we used MassARRAY iPLEX genotyping technology to examine the epidemiology of N. gonorrhoeae and associated AMR in the Australian population. All available N. gonorrhoeae isolates (n = 2452) received from Australian reference laboratories from January to June 2012 were included in the study. Genotypic data were combined with phenotypic AMR information to define strain types. RESULTS: A total of 270 distinct strain types were observed. The 40 most common strain types accounted for over 80% of isolates, and the 10 most common strain types accounted for almost half of all isolates. The high male to female ratios (>94% male) suggested that at least 22 of the top 40 strain types were primarily circulating within networks of men who have sex with men (MSM). Particular strain types were also concentrated among females: two strain types accounted for 37.5% of all isolates from females. Isolates harbouring the mosaic penicillin binding protein 2 (PBP2)-considered a key mechanism for cephalosporin resistance-comprised 8.9% of all N. gonorrhoeae isolates and were primarily observed in males (95%). CONCLUSIONS: This large scale epidemiological investigation demonstrated that N. gonorrhoeae infections are dominated by relatively few strain types. The commonest strain types were concentrated in MSM in urban areas and Indigenous heterosexuals in remote areas, and we were able to confirm a resurgent epidemic in heterosexual networks in urban areas. The prevalence of mosaic PBP2 harboring N. gonorrhoeae strains highlight the ability for new N. gonorrhoeae strains to spread and become established across populations.


Assuntos
Antibacterianos/uso terapêutico , Gonorreia/epidemiologia , Neisseria gonorrhoeae/efeitos dos fármacos , Estudos Transversais , Feminino , Técnicas de Genotipagem , Gonorreia/tratamento farmacológico , Gonorreia/microbiologia , Homossexualidade Masculina , Humanos , Masculino , Testes de Sensibilidade Microbiana , Epidemiologia Molecular , Neisseria gonorrhoeae/genética , Polimorfismo de Nucleotídeo Único , Especificidade da Espécie
5.
Commun Dis Intell Q Rep ; 40(2): E236-43, 2016 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-27522135

RESUMO

From 1 January to 31 December 2014, 27 institutions around Australia participated in the Australian Enterococcal Sepsis Outcome Programme (AESOP). The aim of AESOP 2014 was to determine the proportion of enterococcal bacteraemia isolates in Australia that were antimicrobial resistant, and to characterise the molecular epidemiology of the Enterococcus faecium isolates. Of the 952 unique episodes of bacteraemia investigated, 94.4% were caused by either E. faecalis (54.9%) or E. faecium (39.9%). Ampicillin resistance was detected in 0.6% of E. faecalis and in 89.4% of E. faecium. Vancomycin non-susceptibility was reported in 0.2% and 46.1% of E. faecalis and E. faecium respectively. Overall 51.1% of E. faecium harboured vanA or vanB genes. For the vanA/B positive E. faecium isolates, 81.5% harboured vanB genes and 18.5% vanA genes. The percentage of E. faecium bacteraemia isolates resistant to vancomycin in Australia is significantly higher than that seen in most European countries. E. faecium consisted of 113 pulsed-field gel electrophoresis pulsotypes of which 68.9% of isolates were classified into 14 major pulsotypes containing 5 or more isolates. Multilocus sequence typing grouped the 14 major pulsotypes into clonal cluster 17, a major hospital-adapted polyclonal E. faecium cluster. The geographical distribution of the 4 predominant sequence types (ST203, ST796, ST555 and ST17) varied with only ST203 identified across most regions of Australia. Overall 74.7% of isolates belonging to the four predominant STs harboured vanA or vanB genes. In conclusion, the AESOP 2014 has shown enterococcal bacteraemias in Australia are frequently caused by polyclonal ampicillin-resistant high-level gentamicin resistant vanA or vanB E. faecium, which have limited treatment options.


Assuntos
Farmacorresistência Bacteriana , Enterococcus/efeitos dos fármacos , Infecções por Bactérias Gram-Positivas/epidemiologia , Infecções por Bactérias Gram-Positivas/microbiologia , Sepse/epidemiologia , Sepse/microbiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Relatórios Anuais como Assunto , Antibacterianos/farmacologia , Austrália/epidemiologia , Criança , Pré-Escolar , Enterococcus/classificação , Enterococcus/genética , Feminino , Genótipo , Humanos , Lactente , Recém-Nascido , Masculino , Testes de Sensibilidade Microbiana , Pessoa de Meia-Idade , Tipagem de Sequências Multilocus , Fenótipo , Vigilância da População , Adulto Jovem
6.
Commun Dis Intell Q Rep ; 40(2): E244-54, 2016 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-27522136

RESUMO

From 1 January to 31 December 2014, 27 institutions around Australia participated in the Australian Staphylococcal Sepsis Outcome Programme (ASSOP). The aim of ASSOP 2014 was to determine the proportion of Staphylococcus aureus bacteraemia (SAB) isolates in Australia that are antimicrobial resistant, with particular emphasis on susceptibility to methicillin and to characterise the molecular epidemiology of the isolates. Overall, 18.8% of the 2,206 SAB episodes were methicillin resistant, which was significantly higher than that reported in most European countries. The 30-day all-cause mortality associated with methicillin-resistant SAB was 23.4%, which was significantly higher than the 14.4% mortality associated with methicillin-sensitive SAB (P <0.0001). With the exception of the beta-lactams and erythromycin, antimicrobial resistance in methicillin-sensitive S. aureus remains rare. However in addition to the beta-lactams, approximately 50‰ of methicillin-resistant S. aureus (MRSA) were resistant to erythromycin and ciprofloxacin and approximately 15% were resistant to co-trimoxazole, tetracycline and gentamicin. When applying the European Committee on Antimicrobial Susceptibility Testing breakpoints, teicoplanin resistance was detected in 2 S. aureus isolates. Resistance was not detected for vancomycin or linezolid. Resistance to non-beta-lactam antimicrobials was largely attributable to 2 healthcare-associated MRSA clones; ST22-IV [2B] (EMRSA-15) and ST239-III [3A] (Aus-2/3 EMRSA). ST22-IV [2B] (EMRSA-15) has become the predominant healthcare associated clone in Australia. Sixty per cent of methicillin-resistant SAB were due to community-associated (CA) clones. Although polyclonal, almost 44% of community-associated clones were characterised as ST93-IV [2B] (Queensland CA-MRSA) and ST1-IV [2B] (WA1). CA-MRSA, in particular the ST45-V [5C2&5] (WA84) clone, has acquired multiple antimicrobial resistance determinants including ciprofloxacin, erythromycin, clindamycin, gentamicin and tetracycline. As CA-MRSA is well established in the Australian community it is important that antimicrobial resistance patterns in community and healthcare-associated SAB is monitored as this information will guide therapeutic practices in treating S. aureus sepsis.


Assuntos
Farmacorresistência Bacteriana , Sepse/epidemiologia , Sepse/microbiologia , Infecções Estafilocócicas/epidemiologia , Infecções Estafilocócicas/microbiologia , Staphylococcus aureus/efeitos dos fármacos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Relatórios Anuais como Assunto , Antibacterianos/farmacologia , Austrália/epidemiologia , Bacteriemia/epidemiologia , Bacteriemia/microbiologia , Criança , Pré-Escolar , Infecções Comunitárias Adquiridas , Infecção Hospitalar , Feminino , História do Século XXI , Humanos , Lactente , Recém-Nascido , Masculino , Staphylococcus aureus Resistente à Meticilina , Testes de Sensibilidade Microbiana , Pessoa de Meia-Idade , Avaliação de Resultados da Assistência ao Paciente , Vigilância da População , Infecções Estafilocócicas/história , Staphylococcus aureus/classificação , Staphylococcus aureus/genética , Adulto Jovem
7.
Antimicrob Agents Chemother ; 59(11): 7142-4, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26349822

RESUMO

A West Australian methicillin-resistant Staphylococcus aureus strain (WA MRSA-59) was characterized by microarray and sequencing. Its pseudo-staphylococcal cassette chromosome mec (SCCmec) element comprised dcs, Q9XB68-dcs, mvaS-SCC, Q5HJW6, dru, ugpQ, ydeM, mecA-mecR-mecI, txbi mecI, tnp IS431, copA2-mco (copper resistance), ydhK, arsC-arsB-arsR (arsenic resistance), open reading frame PT43, and per-2. Recombinase genes, xylR (mecR2), and PSM-mec (phenol-soluble modulin) were absent. We suggest that mec complex A should be split into two subtypes. One harbors PSM-mec and xylR (mecR2). It is found in SCCmec types II, III, and VIII. The second subtype, described herein, is present in WA MRSA-59 and some coagulase-negative staphylococci.


Assuntos
Staphylococcus aureus Resistente à Meticilina/genética , Antibacterianos/farmacologia , Proteínas de Bactérias/genética , Staphylococcus aureus Resistente à Meticilina/efeitos dos fármacos , Fases de Leitura Aberta/genética
8.
BMC Infect Dis ; 15: 10, 2015 Jan 09.
Artigo em Inglês | MEDLINE | ID: mdl-25572896

RESUMO

BACKGROUND: Panton Valentine Leukocidin (PVL) has been associated with invasive Staphylococcus aureus soft tissue and pneumonic infections. METHODS: From September 2007 to January 2009 at Royal Perth Hospital we tested for the PVL gene in S. aureus isolates from an invasive site, a suspected PVL-related soft tissue infection and all MRSA isolates. We could access medical records for 141 PVL positive (PVL + ve) infections and compared these to a control group comprised of 148 PVL negative (PVL-ve) infections. RESULTS: In the PVL + ve group 62 isolates were MRSA (48 were ST93-MRSA-IV) and 79 isolates were methicillin-sensitive S. aureus, and in the PVL-ve group 56 were MRSA (50 were WA-MRSA strains) and 92 were methicillin-sensitive S. aureus. We found the presence of PVL to be significantly associated with younger age, aboriginality, intravenous drug use, community acquisition, shorter length of hospital stay and lower mortality at 1 year. Overall PVL + ve infections more often required surgical intervention (73.0% versus 44.6%, p < 0.001) and were less often polymicrobial (8.5% versus 41.2%, p < 0.001). PVL + ve isolates were more often susceptible to clindamycin (87.9% versus 73.0%, p = 0.002). CONCLUSIONS: This study demonstrates that PVL + ve infections are associated with a distinct clinical picture, predominantly pyogenic skin and soft tissue infections often requiring surgery, disproportionately affecting patients who are younger, indigenous or with fewer health-care risk factors.


Assuntos
Clindamicina/uso terapêutico , Staphylococcus aureus Resistente à Meticilina/isolamento & purificação , Infecções Estafilocócicas/epidemiologia , Adulto , Toxinas Bacterianas/genética , Estudos de Casos e Controles , Clindamicina/farmacologia , Infecções Comunitárias Adquiridas/tratamento farmacológico , Infecções Comunitárias Adquiridas/epidemiologia , Infecções Comunitárias Adquiridas/microbiologia , Exotoxinas/genética , Feminino , Humanos , Leucocidinas/genética , Masculino , Staphylococcus aureus Resistente à Meticilina/efeitos dos fármacos , Pessoa de Meia-Idade , Infecções Respiratórias/tratamento farmacológico , Infecções Respiratórias/epidemiologia , Infecções Respiratórias/microbiologia , Fatores de Risco , Infecções dos Tecidos Moles/tratamento farmacológico , Infecções dos Tecidos Moles/epidemiologia , Infecções dos Tecidos Moles/microbiologia , Infecções Estafilocócicas/tratamento farmacológico , Infecções Estafilocócicas/microbiologia , Austrália Ocidental/epidemiologia
9.
Antimicrob Agents Chemother ; 58(12): 7576-8, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25267684

RESUMO

Penicillinase-producing Neisseria gonorrhoeae (PPNG) carrying the blaTEM-135 gene is of particular concern, as it is considered a stepping stone toward resistance to extended-spectrum cephalosporins. Here, we sought to characterize plasmid types and the occurrence of the blaTEM-135 gene for N. gonorrhoeae clinical isolates from Australia. We found that blaTEM-135 was prevalent in Australian PPNG and was detected on all three major plasmid types.


Assuntos
Resistência às Cefalosporinas/genética , Neisseria gonorrhoeae/genética , Resistência às Penicilinas/genética , Penicilinase/genética , Plasmídeos/química , Antibacterianos/farmacologia , Austrália , Técnicas de Tipagem Bacteriana , Cefalosporinas/farmacologia , Gonorreia/microbiologia , Gonorreia/transmissão , Humanos , Testes de Sensibilidade Microbiana , Neisseria gonorrhoeae/classificação , Neisseria gonorrhoeae/efeitos dos fármacos , Neisseria gonorrhoeae/isolamento & purificação , Penicilinas/farmacologia , Plasmídeos/classificação
10.
J Clin Microbiol ; 52(3): 897-905, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24391201

RESUMO

Enterococci are a major cause of health care-associated infections and account for approximately 10% of all bacteremias globally. The aim of this study was to determine the proportion of enterococcal bacteremia isolates in Australia that are antimicrobial resistant, with particular emphasis on susceptibility to ampicillin and the glycopeptides, and to characterize the molecular epidemiology of the Enterococcus faecalis and Enterococcus faecium isolates. From 1 January to 31 December 2011, 1,079 unique episodes of bacteremia were investigated, of which 95.8% were caused by either E. faecalis (61.0%) or E. faecium (34.8%). The majority of bacteremias were health care associated, and approximately one-third were polymicrobial. Ampicillin resistance was detected in 90.4% of E. faecium isolates but was not detected in E. faecalis isolates. Vancomycin nonsusceptibility was reported in 0.6% and 36.5% of E. faecalis and E. faecium isolates, respectively. Unlike Europe and the United States, where vancomycin resistance in E. faecium is predominately due to the acquisition of the vanA operon, 98.4% of E. faecium isolates harboring van genes carried the vanB operon, and 16.1% of the vanB E. faecium isolates had vancomycin MICs at or below the susceptible breakpoint of the CLSI. Although molecular typing identified 126 E. faecalis pulsed-field gel electrophoresis pulsotypes, >50% belonged to two pulsotypes that were isolated across Australia. E. faecium consisted of 73 pulsotypes from which 43 multilocus sequence types were identified. Almost 90% of the E. faecium isolates were identified as CC17 clones, of which approximately half were characterized as ST203, which was isolated Australia-wide. In conclusion, the Australian Enterococcal Sepsis Outcome Programme (AESOP) study has shown that although they are polyclonal, enterococcal bacteremias in Australia are frequently caused by ampicillin-resistant vanB E. faecium.


Assuntos
Bacteriemia/epidemiologia , Enterococcus faecalis/isolamento & purificação , Enterococcus faecium/isolamento & purificação , Infecções por Bactérias Gram-Positivas/epidemiologia , Antibacterianos/farmacologia , Austrália/epidemiologia , Bacteriemia/microbiologia , Coinfecção/epidemiologia , Coinfecção/microbiologia , Infecção Hospitalar/epidemiologia , Infecção Hospitalar/microbiologia , Farmacorresistência Bacteriana , Enterococcus faecalis/classificação , Enterococcus faecalis/genética , Enterococcus faecium/classificação , Enterococcus faecium/genética , Genes Bacterianos , Infecções por Bactérias Gram-Positivas/microbiologia , Humanos , Testes de Sensibilidade Microbiana , Epidemiologia Molecular , Tipagem Molecular
12.
Am J Emerg Med ; 32(2): 135-8, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24238483

RESUMO

PURPOSE: Methicillin-resistant Staphylococcus aureus (MRSA) infections are becoming increasingly prevalent in both community and hospital settings. Certain strains are notorious for causing skin and soft tissue infections in patients with no established risk factors. In this article, we report our findings on the dynamic antibiotic resistance pattern of MRSA and outpatient prescription trend for skin and soft tissue infections within our community. METHODS: We conducted a retrospective medical record review of 1876 patients evaluated in the emergency department of an urban community hospital from 2003 to 2012. Data regarding culture isolates and associated antimicrobial resistance, antibiotic treatment, site of specimen collection, age, race, and sex were collected and analyzed. RESULTS: Analysis of 1879 culture specimens yielded 2193 isolates. In some cases, a single specimen yielded polymicrobial growth. Staphylococcus aureus represented 996 isolates (45.4%); 463 were methicillin-susceptible (21.1%) and 533 (24.3%) were methicillin-resistant. Most patients were prescribed a single- or poly-drug regimen of trimethoprim/sulfamethoxazole, cephalexin, and clindamycin. Antimicrobial resistance analysis indicated that MRSA became increasingly resistant to the aforementioned antibiotics over time: 10% and 6% in 2012 vs 3.5% and 3.4% in 2007 for clindamycin and trimethoprim/sulfamethoxazole, respectively. CONCLUSION: Methicillin-resistant Staphylococcus aureus is a particularly virulent, rapidly adaptive pathogen that is becoming increasingly difficult to combat with existing antibiotics. Care must be taken to ensure appropriate treatment and follow-up of patients with known MRSA infections.


Assuntos
Antibacterianos/uso terapêutico , Staphylococcus aureus Resistente à Meticilina , Infecções dos Tecidos Moles/tratamento farmacológico , Infecções Cutâneas Estafilocócicas/tratamento farmacológico , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Cefalexina/administração & dosagem , Cefalexina/uso terapêutico , Criança , Pré-Escolar , Clindamicina/administração & dosagem , Clindamicina/uso terapêutico , Farmacorresistência Bacteriana Múltipla , Quimioterapia Combinada , Serviço Hospitalar de Emergência/estatística & dados numéricos , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Staphylococcus aureus Resistente à Meticilina/efeitos dos fármacos , Pessoa de Meia-Idade , Estudos Retrospectivos , Infecções dos Tecidos Moles/microbiologia , Infecções Cutâneas Estafilocócicas/microbiologia , Combinação Trimetoprima e Sulfametoxazol/administração & dosagem , Combinação Trimetoprima e Sulfametoxazol/uso terapêutico , Adulto Jovem
13.
Commun Dis Intell Q Rep ; 38(1): E49-53, 2014 Mar 31.
Artigo em Inglês | MEDLINE | ID: mdl-25409355

RESUMO

The Australian Group on Antimicrobial Resistance performs regular period-prevalence studies to monitor changes in antimicrobial resistance in selected enteric Gram-negative pathogens. The 2011 survey focussed on hospital-onset infections, examining isolates from all specimens presumed to be causing disease. In 2011, 1,827 Escherichia coli, 537 Klebsiella species and 269 Enterobacter species were tested using a commercial automated method (Vitek 2, BioMérieux) and results were analysed using Clinical and Laboratory Standards Institute breakpoints from January 2012. Of the key resistances, non-susceptibilty to the third-generation cephalosporin, ceftriaxone, was found in 9.6% of E. coli and 9.5%-12.1% of Klebsiella spp. Non-susceptibility rates to ciprofloxacin were 10.6% for E. coli, 0.0%-8.3% for Klebsiella spp. and 0.0%-5.0% in Enterobacter spp. Resistance rates to gentamicin were 8.6%, 2.9%-10.9%, and 0.0%-15.6% for the same 3 groups respectively. Eight strains, 5 Klebsiella spp. and 3 Enterobacter spp. were shown to harbour a carbapenemase (IMP-4).


Assuntos
Infecção Hospitalar , Infecções por Bactérias Gram-Negativas/epidemiologia , Vigilância da População , Relatórios Anuais como Assunto , Antibacterianos/farmacologia , Austrália/epidemiologia , Farmacorresistência Bacteriana , Bactérias Gram-Negativas/classificação , Bactérias Gram-Negativas/efeitos dos fármacos , Bactérias Gram-Negativas/isolamento & purificação , Infecções por Bactérias Gram-Negativas/história , Infecções por Bactérias Gram-Negativas/microbiologia , História do Século XXI , Humanos , Testes de Sensibilidade Microbiana
14.
Commun Dis Intell Q Rep ; 38(1): E59-69, 2014 Mar 31.
Artigo em Inglês | MEDLINE | ID: mdl-25409357

RESUMO

In 2012, the Australian Group on Antimicrobial Resistance (AGAR) conducted a community-onset period-prevalence survey of clinical Staphylococcus aureus isolated from hospital outpatients and general practice patients including nursing homes, long term care facilities and hospice patients. Day surgery and dialysis patients were excluded. Twenty-nine medical microbiology laboratories from all state and mainland territories participated. Isolates were tested by Vitek2® (AST-P612 card). Results were compared with previous AGAR community surveys. Nationally, the proportion of S. aureus that were methicillin-resistant S. aureus (MRSA) increased significantly from 11.5% in 2000 to 17.9% in 2012 (P<0.0001). Resistance to the non-ß-lactam antimicrobials varied between regions. No resistance was detected to vancomycin, teicoplanin or linezolid. Resistance in methicillin susceptible S. aureus was rare apart from erythromycin (12.8%) and was absent for vancomycin, teicoplanin, linezolid and daptomycin. The proportion of S. aureus characterised as health care-associated MRSA (HA-MRSA) was 5.1%. Three HA-MRSA clones were characterised, with 72.9% and 26.4% of HA-MRSA classified as ST22-IV [2B] (EMRSA-15) and ST239-III [3A] (Aus-2/3 EMRSA) respectively. Multi-clonal community-associated MRSA (CA-MRSA) accounted for 12.5% of all S. aureus. Regional variation in resistance in MRSA was primarily due to the differential distribution of the 2 major HA-MRSA clones; ST239-III [3A] (Aus-2/3 EMRSA), which is resistant to multiple non-ß-lactam antimicrobials, and ST22-IV [2B] (EMRSA-15), which is resistant to ciprofloxacin and typically erythromycin. Although the majority of CA-MRSA were non-multi-resistant, a significant expansion of Panton-Valentine leukocidin (PVL) positive CA-MRSA clones has occurred nationally. The mean age of patients (31.7 years, 95% CI 28.9-34.5) with a PVL positive CA-MRSA infection was significantly lower (P<0.0001), than the mean age of patients with a PVL negative CA-MRSA infection (55.7 years, 95% CI 50.7-60.6). This shift in the molecular epidemiology of MRSA clones in the Australian community will potentially increase the number of young Australians with skin and soft tissue infections requiring hospitalisation.


Assuntos
Infecções Comunitárias Adquiridas/epidemiologia , Infecções Comunitárias Adquiridas/microbiologia , Vigilância da População , Infecções Estafilocócicas/epidemiologia , Infecções Estafilocócicas/microbiologia , Staphylococcus aureus , Relatórios Anuais como Assunto , Antibacterianos/farmacologia , Austrália/epidemiologia , Infecções Comunitárias Adquiridas/história , Farmacorresistência Bacteriana , História do Século XXI , Humanos , Staphylococcus aureus Resistente à Meticilina , Testes de Sensibilidade Microbiana , Infecções Estafilocócicas/história , Staphylococcus aureus/classificação , Staphylococcus aureus/efeitos dos fármacos , Staphylococcus aureus/genética
15.
Commun Dis Intell Q Rep ; 38(3): E247-52, 2014 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-25391408

RESUMO

From 1 January to 31 December 2011, 29 institutions around Australia participated in the Australian Enterococcal Sepsis Outcome Programme (AESOP). The aim of AESOP 2011 was to determine the proportion of enterococcal bacteraemia isolates in Australia that are antimicrobial resistant, with particular emphasis on susceptibility to ampicillin and the glycopeptides, and to characterise the molecular epidemiology of the Enterococcus faecalis and E. faecium isolates. Of the 1,079 unique episodes of bacteraemia investigated, 95.8% were caused by either E. faecalis (61.0%) or E. faecium (34.8%). Ampicillin resistance was detected in 90.4% of E. faecium but not detected in E. faecalis. Using Clinical and Laboratory Standards Institute breakpoints (CLSI), vancomycin non-susceptibility was reported in 0.6% and 31.4% of E. faecalis and E. faecium respectively and was predominately due to the acquisition of the vanB operon. Approximately 1 in 6 vanB E. faecium isolates however, had an minimum inhibitory concentration at or below the CLSI vancomycin susceptible breakpoint of ≤ 4 mg/L. Overall, 37% of E. faecium harboured vanA or vanB genes. Although molecular typing identified 126 E. faecalis pulsed-field gel electrophoresis (PFGE) pulsotypes, more than 50% belonged to 2 pulsotypes that were isolated across Australia. E. faecium consisted of 73 PFGE pulsotypes from which 43 multilocus sequence types were identified. Almost 90% of the E. faecium were identified as clonal complex 17 clones, of which approximately half were characterised as sequence type 203, which was isolated Australia-wide. In conclusion, the AESOP 2011 has shown that although polyclonal, enterococcal bacteraemias in Australia are frequently caused by ampicillin-resistant vanB E. faecium.


Assuntos
Enterococcus , Vigilância da População , Sepse/epidemiologia , Sepse/microbiologia , Antibacterianos/farmacologia , Austrália/epidemiologia , Enterococcus/classificação , Enterococcus/efeitos dos fármacos , Enterococcus/genética , Genótipo , História do Século XXI , Humanos , Testes de Sensibilidade Microbiana , Sepse/diagnóstico , Sepse/história
16.
Commun Dis Intell Q Rep ; 38(4): E309-19, 2014 Dec 31.
Artigo em Inglês | MEDLINE | ID: mdl-25631593

RESUMO

From 1 January to 31 December 2013, around Australia 26 institutions around Australia participated in the Australian Staphylococcal Sepsis Outcome Programme (ASSOP). The aim of ASSOP 2013 was to determine the proportion of Staphylococcus aureus bacteraemia (SAB) isolates in Australia that are antimicrobial resistant, (with particular emphasis on susceptibility to methicillin) and to characterise the molecular epidemiology of the isolates. Overall 19.1% of the 2,010 SAB episodes were methicillin resistant, which is significantly higher than that reported in most European countries. Although the SAB 30-day all cause mortality appears to be decreasing in Australia, methicillin-resistant SAB associated mortality remains high (20.1%) and was significantly higher than methicillin-sensitive SAB associated mortality (13%) (P< 0.0001). With the exception of the ß-lactams and erythromycin, antimicrobial resistance in methicillin sensitive S. aureus remains rare. However, in addition to the ß-lactams, approximately 50% of methicillin-resistant S. aureus (MRSA) were resistant to erythromycin and ciprofloxacin and approximately 20% were resistant to co-trimoxazole, tetracycline and gentamicin. Linezolid, daptomycin and teicoplanin resistance was detected in a small number of S. aureus isolates. Resistance to vancomycin was not detected. Resistance was largely attributable to 2 healthcare associated MRSA clones; ST22-IV [2B] (EMRSA-15) and ST239-III [3A] (Aus-2/3 EMRSA). ST22-IV [2B] (EMRSA-15) has now become the predominant healthcare associated clone in Australia. Approximately 60% of methicillin-resistant SAB were due to community associated clones. Although polyclonal, almost 50% of community associated clones were characterised as ST93-IV [2B] (Queensland CA-MRSA) and ST1-IV [2B] (WA1). CA-MRSA, in particular the ST45-V [5C2&5] (WA84) clone, has acquired multiple antimicrobial resistance determinants including ciprofloxacin, erythromycin, clindamycin, gentamicin and tetracycline. As CA-MRSA is well established in the Australian community, it is important antimicrobial resistance patterns in community and healthcare associated SAB is monitored as this information will guide therapeutic practices in treating S. aureus sepsis.


Assuntos
Antibacterianos/uso terapêutico , Bacteriemia/tratamento farmacológico , Infecção Hospitalar/tratamento farmacológico , Staphylococcus aureus Resistente à Meticilina/efeitos dos fármacos , Sepse/tratamento farmacológico , Infecções Estafilocócicas/tratamento farmacológico , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Relatórios Anuais como Assunto , Austrália/epidemiologia , Bacteriemia/epidemiologia , Bacteriemia/microbiologia , Bacteriemia/mortalidade , Criança , Pré-Escolar , Células Clonais , Infecção Hospitalar/epidemiologia , Infecção Hospitalar/microbiologia , Infecção Hospitalar/mortalidade , Farmacorresistência Bacteriana Múltipla , Monitoramento Epidemiológico , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Staphylococcus aureus Resistente à Meticilina/classificação , Staphylococcus aureus Resistente à Meticilina/genética , Staphylococcus aureus Resistente à Meticilina/crescimento & desenvolvimento , Testes de Sensibilidade Microbiana , Pessoa de Meia-Idade , Sepse/epidemiologia , Sepse/microbiologia , Sepse/mortalidade , Sorotipagem , Infecções Estafilocócicas/epidemiologia , Infecções Estafilocócicas/microbiologia , Infecções Estafilocócicas/mortalidade , Análise de Sobrevida , Resultado do Tratamento
17.
Commun Dis Intell Q Rep ; 38(4): E320-6, 2014 Dec 31.
Artigo em Inglês | MEDLINE | ID: mdl-25631594

RESUMO

From 1 January to 31 December 2013, 26 institutions around Australia participated in the Australian Enterococcal Sepsis Outcome Programme (AESOP). The aim of AESOP 2013 was to determine the proportion of enterococcal bacteraemia isolates in Australia that are antimicrobial resistant, and to characterise the molecular epidemiology of the Enterococcus faecium isolates. Of the 826 unique episodes of bacteraemia investigated, 94.6% were caused by either E. faecalis (56.1%) or E. faecium (38.5%). Ampicillin resistance was not detected in E. faecalis but was detected in over 90% of E. faecium. Vancomycin non-susceptibility was reported in 0.2% and 40.9% of E. faecalis and E. faecium respectively and was predominately due to the acquisition of the vanB operon. Overall, 41.6% of E. faecium harboured vanA or vanB genes. The percentage of E. faecium bacteraemia isolates resistant to vancomycin in Australia is significantly higher than that seen in most European countries. E. faecium isolates consisted of 81 pulsed-field gel electrophoresis pulsotypes of which 72.3% were classified into 14 major pulsotypes containing five or more isolates. Multilocus sequence typing grouped the 14 major pulsotypes into clonal cluster 17, a major hospital-adapted polyclonal E. faecium cluster. Of the 2 predominant sequence types, ST203 (80 isolates) was identified across Australia and ST555 (40 isolates) was isolated primarily in the western and central regions (Northern Territory, South Australia and Western Australia) respectively. In conclusion, the AESOP 2013 has shown enterococcal bacteraemias in Australia are frequently caused by polyclonal ampicillin-resistant high-level gentamicin resistant vanB E. faecium, which have limited treatment options.


Assuntos
Antibacterianos/uso terapêutico , Bacteriemia/tratamento farmacológico , Infecção Hospitalar/tratamento farmacológico , Enterococcus faecalis/efeitos dos fármacos , Enterococcus faecium/efeitos dos fármacos , Infecções por Bactérias Gram-Positivas/tratamento farmacológico , Sepse/tratamento farmacológico , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Relatórios Anuais como Assunto , Austrália/epidemiologia , Bacteriemia/epidemiologia , Bacteriemia/microbiologia , Bacteriemia/mortalidade , Criança , Pré-Escolar , Infecção Hospitalar/epidemiologia , Infecção Hospitalar/microbiologia , Infecção Hospitalar/mortalidade , Enterococcus faecalis/classificação , Enterococcus faecalis/genética , Enterococcus faecalis/crescimento & desenvolvimento , Enterococcus faecium/classificação , Enterococcus faecium/genética , Enterococcus faecium/crescimento & desenvolvimento , Monitoramento Epidemiológico , Feminino , Infecções por Bactérias Gram-Positivas/epidemiologia , Infecções por Bactérias Gram-Positivas/microbiologia , Infecções por Bactérias Gram-Positivas/mortalidade , Humanos , Lactente , Recém-Nascido , Masculino , Testes de Sensibilidade Microbiana , Pessoa de Meia-Idade , Sepse/epidemiologia , Sepse/microbiologia , Sepse/mortalidade , Sorotipagem , Análise de Sobrevida , Resultado do Tratamento , Resistência a Vancomicina
18.
Hosp Top ; 92(4): 81-7, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25529788

RESUMO

The most common indication for readmission among Medicare patients is congestive heart failure (CHF). Prior studies underscore the use of residents to bolster hospital-wide programs and reduce CHF readmissions. The authors assessed the effectiveness of a novel online training program designed to improve resident documentation and knowledge related to CHF. The findings suggest that despite a significant increase in knowledge scores following the online educational course, there was only a slight increase in documentation scores. Additional teaching modalities need to be identified to foster resident education and create sustained behavior change.


Assuntos
Insuficiência Cardíaca/terapia , Prontuários Médicos/normas , Corpo Clínico Hospitalar/educação , Currículo , Documentação/normas , Hospitais de Ensino , Humanos , Comunicação Interdisciplinar , Internet , Cidade de Nova Iorque , Melhoria de Qualidade
19.
J Nurs Meas ; 22(3): 381-403, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25608427

RESUMO

BACKGROUND AND PURPOSE: The level of patient satisfaction is a result of a complex set of interactions between the patient and the health care provider. It is important to quantify satisfaction with care because it involves the patient in the care experience and decreases the potential gap between expected and actual care delivered. METHODS: We tested a preliminary 23-item instrument to measure patient satisfaction with general anesthesia care. The rating scale Rasch model was chosen as the framework. RESULTS: There were 10 items found to have sufficient evidence of stable fit statistics. Items included 2 questions related to information provided, 2 questions related to concern and kindness of the provider, and 1 question each for interpersonal skills of the provider, attention by the provider, feeling safe, well-being, privacy, and overall anesthesia satisfaction. CONCLUSION: Such actions as providing enough time to understand the anesthesia plan, answering questions related to the anesthetic, showing kindness and concern for the patient, displaying good interpersonal skills, providing adequate attention to the patient, providing a safe environment that maintains privacy and provides a sense of well-being are important actions that are well within the control of individual anesthesia providers and may lead to improved care from the perception of the patient.


Assuntos
Anestesia Geral/estatística & dados numéricos , Militares/estatística & dados numéricos , Modelos Estatísticos , Relações Enfermeiro-Paciente , Satisfação do Paciente/estatística & dados numéricos , Relações Médico-Paciente , Adulto , Idoso , Anestesia Geral/psicologia , Comunicação , Empatia , Feminino , Hospitais Militares , Humanos , Masculino , Pessoa de Meia-Idade , Militares/psicologia , Estados Unidos , Adulto Jovem
20.
Commun Dis Intell Q Rep ; 37(3): E210-8, 2013 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-24890956

RESUMO

In 2011, the Australian Group on Antimicrobial Resistance (AGAR) conducted a period-prevalence survey of clinical Staphylococcus aureus isolated from hospital inpatients. Twenty-nine microbiology laboratories from all states and mainland territories participated. Specimens were collected more than 48 hours post-admission. Isolates were tested by Vitek2® antimicrobial susceptibility card (AST-P612 card). Nationally, the proportion of S. aureus that were methicillin-resistant S. aureus (MRSA) was 30.3%; ranging from 19.9% in Western Australia to 36.8% in New South Wales/Australian Capital Territory. Resistance to the non-ß-lactam antimicrobials was common except for rifampicin, fusidic acid, high-level mupirocin and daptomycin. No resistance was detected for vancomycin, teicoplanin or linezolid. Antibiotic resistance in methicillin susceptible S. aureus (MSSA) was rare apart from erythromycin (13.2%) and there was no resistance to vancomycin, teicoplanin or linezolid. Inducible clindamycin resistance was the norm for erythromycin resistant, clindamycin intermediate/susceptible S. aureus in Australia with 90.6% of MRSA and 83.1% of MSSA with this phenotype having a positive double disc diffusion test (D-test). The proportion of S. aureus characterised as being healthcare-associated MRSA (HA-MRSA) was 18.2%, ranging from 4.5% in Western Australia to 28.0% in New South Wales/Australian Capital Territory. Four HA-MRSA clones were characterised and 98.8% of HA-MRSA isolates were classified as either ST22-IV [2B] (EMRSA-15) or ST239-III [3A] (Aus-2/3 EMRSA). Multiclonal community-associated MRSA (CA-MRSA) accounted for 11.7% of all S. aureus. In Australia, regional variation in resistance is due to the differential distribution of MRSA clones between regions, particularly for the major HA-MRSA clone, ST239-III [3A] (Aus-2/3 EMRSA), which is resistant to multiple non-ß-lactam antimicrobials.


Assuntos
Farmacorresistência Bacteriana , Vigilância em Saúde Pública , Infecções Estafilocócicas/epidemiologia , Infecções Estafilocócicas/microbiologia , Staphylococcus aureus/efeitos dos fármacos , Antibacterianos/farmacologia , Austrália/epidemiologia , Infecção Hospitalar/epidemiologia , Infecção Hospitalar/microbiologia , História do Século XXI , Humanos , Staphylococcus aureus Resistente à Meticilina , Testes de Sensibilidade Microbiana , Infecções Estafilocócicas/história , Staphylococcus aureus/classificação , Staphylococcus aureus/genética , Staphylococcus aureus/isolamento & purificação
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