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1.
J Antimicrob Chemother ; 78(6): 1367-1377, 2023 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-37038993

RESUMEN

BACKGROUND: The Antifungal National Antimicrobial Prescribing Survey (AF-NAPS) was developed to undertake streamlined quality audits of antifungal prescribing. The validity and reliability of such tools is not characterized. OBJECTIVES: To assess the validity and reliability of the AF-NAPS quality assessment tool. METHODS: Case vignettes describing antifungal prescribing were prepared. A steering group was assembled to determine gold-standard classifications for appropriateness and guideline compliance. Infectious diseases physicians, antimicrobial stewardship (AMS) and specialist pharmacists undertook a survey to classify appropriateness and guideline compliance of prescriptions utilizing the AF-NAPS tool. Validity was measured as accuracy, sensitivity and specificity compared with gold standard. Inter-rater reliability was measured using Fleiss' kappa statistics. Assessors' responses and comments were thematically analysed to determine reasons for incorrect classification. RESULTS: Twenty-eight clinicians assessed 59 antifungal prescriptions. Overall accuracy of appropriateness assessment was 77.0% (sensitivity 85.3%, specificity 68.0%). Highest accuracy was seen amongst specialist (81%) and AMS pharmacists (79%). Prescriptions with lowest accuracy were in the haematology setting (69%), use of echinocandins (73%), mould-active azoles (75%) and for prophylaxis (71%). Inter-rater reliability was fair overall (0.3906), with moderate reliability amongst specialist pharmacists (0.5304). Barriers to accurate classification were incorrect use of the appropriateness matrix, knowledge gaps and lack of guidelines for some indications. CONCLUSIONS: The AF-NAPS is a valid tool, assisting assessors to correctly classify appropriate prescriptions more accurately than inappropriate prescriptions. Specialist and AMS pharmacists had similar performance, providing confidence that both can undertake AF-NAPS audits to a high standard. Identified reasons for incorrect classification will be targeted in the online tool and educational materials.


Asunto(s)
Antiinfecciosos , Antifúngicos , Humanos , Antifúngicos/uso terapéutico , Reproducibilidad de los Resultados , Antiinfecciosos/uso terapéutico , Prescripciones , Encuestas y Cuestionarios , Prescripción Inadecuada
2.
J Antimicrob Chemother ; 76(1): 253-262, 2021 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-33057605

RESUMEN

BACKGROUND: Guidance on assessment of the quantity and appropriateness of antifungal prescribing is required to assist hospitals to interpret data effectively and structure quality improvement programmes. OBJECTIVES: To achieve expert consensus on a core set of antifungal stewardship (AFS) metrics and to determine their feasibility for implementation. METHODS: A literature review was undertaken to develop a list of candidate metrics. International experts were invited to participate in sequential web-based surveys to evaluate the importance and feasibility of metrics in the area of AFS using Delphi methodology. Three surveys were completed. Consensus was predefined as ≥80% agreement on the importance of each metric. RESULTS: Eighty-two experts consented to participate from 17 different countries. Response rate for each survey was >80%. The panel included adult and paediatric physicians, microbiologists and pharmacists with diverse content expertise. Consensus was achieved for 38 metrics considered important to routinely include in AFS programmes, and related to antifungal consumption (n = 5), quality of antifungal prescribing and management of invasive fungal infection (IFI) (n = 24), and clinical outcomes (n = 9). Twenty-one consensus metrics were considered to have moderate to high feasibility for routine collection. CONCLUSIONS: The identified core AFS metrics will provide a framework to comprehensively assess the quantity and quality of antifungal prescribing within hospitals to develop quality improvement programmes aimed at improving IFI prevention, management and patient-centred outcomes. A standardized approach will support collaboration and benchmarking to monitor the efficacy of current prophylaxis and treatment guidelines, and will provide important feedback to guideline developers.


Asunto(s)
Antifúngicos , Infecciones Fúngicas Invasoras , Adulto , Antifúngicos/uso terapéutico , Benchmarking , Niño , Hospitales , Humanos , Infecciones Fúngicas Invasoras/tratamiento farmacológico , Mejoramiento de la Calidad
3.
Support Care Cancer ; 28(6): 2745-2752, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-31712951

RESUMEN

BACKGROUND: CRS-HIPEC is associated with improved cancer survival but an increased risk of infection. METHODS: Consecutive patients undergoing CRS-HIPEC between January 2016 and May 2018 were retrospectively reviewed. Malignancy type, comorbidities, perioperative risk factors and infectious complications were captured, using standardised definitions. Association between risk factors and infection outcomes was evaluated by logistic regression modelling. RESULTS: One-hundred patients underwent CRS-HIPEC, predominantly for colorectal cancer and pseudomyxoma peritonei. Overall, 43 (43.0%) experienced an infectious complication, including infections at surgical site (27), respiratory tract (9), urinary tract (11), Clostridium difficile (2) and post-operative sepsis (15). In most, infection onset was within 7 days post-operatively. Median length of hospitalisation was 19 days for patients with infection, compared to 8 days for those without (p = 0.000). There were no deaths at 60 days. Of variables potentially associated with surgical site infection, small bowel resection (OR 4.01, 95% confidence interval [CI] 1.53-10.83; p = 0.005) and number of resected viscera (OR 1.41, 95% CI 1.00-1.98; p = 0.048) were significantly associated with infection. CONCLUSIONS: We demonstrate a significant burden of early infective complications in patients undergoing CRS-HIPEC. Higher-risk subgroups, including those with small bowel resection and increased number of resected viscera, may benefit from enhanced monitoring.


Asunto(s)
Procedimientos Quirúrgicos de Citorreducción/efectos adversos , Procedimientos Quirúrgicos del Sistema Digestivo/efectos adversos , Hipertermia Inducida/efectos adversos , Infección de la Herida Quirúrgica/epidemiología , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias Colorrectales/patología , Neoplasias Colorrectales/cirugía , Terapia Combinada , Procedimientos Quirúrgicos de Citorreducción/métodos , Femenino , Humanos , Hipertermia Inducida/métodos , Masculino , Persona de Mediana Edad , Neoplasias Peritoneales/cirugía , Seudomixoma Peritoneal/cirugía , Estudios Retrospectivos , Infección de la Herida Quirúrgica/microbiología , Adulto Joven
4.
Eur J Nucl Med Mol Imaging ; 46(1): 166-173, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-29882160

RESUMEN

PURPOSE: Invasive fungal infections (IFIs) are common in immunocompromised patients. While early diagnosis can reduce otherwise high morbidity and mortality, conventional CT has suboptimal sensitivity and specificity. Small studies have suggested that the use of FDG PET/CT may improve the ability to detect IFI. The objective of this study was to describe the proven and probable IFIs detected on FDG PET/CT at our centre and compare the performance with that of CT for localization of infection, dissemination and response to therapy. METHODS: FDG PET/CT reports for adults investigated at Peter MacCallum Cancer Centre were searched using keywords suggestive of fungal infection. Chart review was performed to describe the risk factors, type and location of IFIs, indication for FDG PET/CT, and comparison with CT for the detection of infection, and its dissemination and response to treatment. RESULTS: Between 2007 and 2017, 45 patients had 48 proven/probable IFIs diagnosed prior to or following FDG PET/CT. Overall 96% had a known malignancy with 78% being haematological. FDG PET/CT located clinically occult infection or dissemination to another organ in 40% and 38% of IFI patients, respectively. Of 40 patients who had both FDG PET/CT and CT, sites of IFI dissemination were detected in 35% and 5%, respectively (p < 0.001). Of 18 patents who had both FDG PET/CT and CT follow-up imaging, there were discordant findings between the two imaging modalities in 11 (61%), in whom normalization of FDG avidity of a lesion suggested resolution of active infection despite a residual lesion on CT. CONCLUSION: FDG PET/CT was able to localize clinically occult infection and dissemination and was particularly helpful in demonstrating response to antifungal therapy.


Asunto(s)
Fluorodesoxiglucosa F18 , Infecciones Fúngicas Invasoras/diagnóstico por imagen , Infecciones Fúngicas Invasoras/tratamiento farmacológico , Tomografía Computarizada por Tomografía de Emisión de Positrones , Adulto , Anciano , Antifúngicos/uso terapéutico , Femenino , Humanos , Infecciones Fúngicas Invasoras/mortalidad , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Adulto Joven
5.
Epidemiol Infect ; 147: e87, 2019 01.
Artículo en Inglés | MEDLINE | ID: mdl-30869059

RESUMEN

To determine the burden of skin and soft tissue infections (SSTI), the nature of antimicrobial prescribing and factors contributing to inappropriate prescribing for SSTIs in Australian aged care facilities, SSTI and antimicrobial prescribing data were collected via a standardised national survey. The proportion of residents prescribed ⩾1 antimicrobial for presumed SSTI and the proportion whose infections met McGeer et al. surveillance definitions were determined. Antimicrobial choice was compared to national prescribing guidelines and prescription duration analysed using a negative binomial mixed-effects regression model. Of 12 319 surveyed residents, 452 (3.7%) were prescribed an antimicrobial for a SSTI and 29% of these residents had confirmed infection. Topical clotrimazole was most frequently prescribed, often for unspecified indications. Where an indication was documented, antimicrobial choice was generally aligned with recommendations. Duration of prescribing (in days) was associated with use of an agent for prophylaxis (rate ratio (RR) 1.63, 95% confidence interval (CI) 1.08-2.52), PRN orders (RR 2.10, 95% CI 1.42-3.11) and prescription of a topical agent (RR 1.47, 95% CI 1.08-2.02), while documentation of a review or stop date was associated with reduced duration of prescribing (RR 0.33, 95% CI 0.25-0.43). Antimicrobial prescribing for SSTI is frequent in aged care facilities in Australia. Methods to enhance appropriate prescribing, including clinician documentation, are required.


Asunto(s)
Antibacterianos/administración & dosificación , Prescripción Inadecuada/estadística & datos numéricos , Pautas de la Práctica en Medicina/estadística & datos numéricos , Enfermedades Cutáneas Infecciosas/epidemiología , Infecciones de los Tejidos Blandos/epidemiología , Anciano , Anciano de 80 o más Años , Australia/epidemiología , Femenino , Humanos , Masculino , Enfermedades Cutáneas Infecciosas/microbiología , Infecciones de los Tejidos Blandos/microbiología
6.
J Antimicrob Chemother ; 71(6): 1715-22, 2016 06.
Artículo en Inglés | MEDLINE | ID: mdl-26895771

RESUMEN

BACKGROUND: The presence of antimicrobial allergy designations ('labels') often substantially reduces prescribing options for affected patients, but the frequency, accuracy and impacts of such labels are unknown. METHODS: The National Antimicrobial Prescribing Survey (NAPS) is an annual de-identified point prevalence audit of Australian inpatient antimicrobial prescribing using standardized definitions of guideline compliance, appropriateness and indications. Data were extracted for 2 years (2013-14) and compared for patients with an antimicrobial allergy label (AAL) and with no AAL (NAAL). RESULTS: Among 21 031 patients receiving antimicrobials (33 421 prescriptions), an AAL was recorded in 18%, with inappropriate antimicrobial use significantly higher in the AAL group versus the NAAL group (OR 1.12, 95% CI 1.05-1.22, P < 0.002). Patterns of antimicrobial use were significantly influenced by AAL, with lower ß-lactam use (AAL versus NAAL; OR 0.47, 95% CI 0.43-0.50, P < 0.001) and higher quinolone (OR 2.07, 95% CI 1.83-2.34, P < 0.0001), glycopeptide (OR 1.59, 95% CI 1.38-1.83, P < 0.0001) and carbapenem (OR 1.74, 95% CI 1.43-2.13, P < 0.0001) use. In particular, among immunocompromised patients, AAL was associated with increased rates of inappropriate antimicrobial use (OR 1.68, 95% CI 1.21-2.30, P = 0.003), as well as increased use of quinolones (OR 1.88, 95% CI 1.16-3.03, P = 0.02) and glycopeptides (OR 1.82, 95% CI 1.17-2.84, P = 0.01). CONCLUSIONS: AALs are common and appear to be associated with higher rates of inappropriate prescribing and increased use of broad-spectrum antimicrobials. Improved accuracy in defining AALs is likely to be important for effective antimicrobial stewardship (AMS), with efforts to 'de-label' inappropriate AAL patients a worthwhile feature of future AMS initiatives.


Asunto(s)
Antiinfecciosos/efectos adversos , Antiinfecciosos/uso terapéutico , Hipersensibilidad a las Drogas , Etiquetado de Medicamentos , Prescripciones de Medicamentos , Utilización de Medicamentos , Pautas de la Práctica en Medicina , Australia , Humanos , Pacientes Internos
7.
Intern Med J ; 46(10): 1182-1188, 2016 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-27515491

RESUMEN

BACKGROUND: Identifying themes associated with inappropriate prescribing in Australian public and private hospitals will help target future antimicrobial stewardship initiatives. AIMS: To describe current antimicrobial prescribing practices, identify similarities and differences between hospital sectors and provide target areas for improvement specific to each hospital sector. METHODS: All hospitals included in the study were part of the 2014 national antimicrobial prescribing survey and conducted one of the following: a whole hospital point prevalence survey, serial point prevalence surveys or a sample of randomly selected patients. Data on the types of antibiotics used, their indications for use and the quality of prescription based on compliance with national and local prescribing guidelines were collected. RESULTS: Two hundred and two hospitals (166 public and 36 private) comprising 10 882 patients and 15 967 antimicrobial prescriptions were included. Public hospitals had higher proportions of prescriptions for treatment (81.5% vs 48.4%) and medical prophylaxis (8.8% and 4.6%), whilst private hospitals had significantly higher surgical prophylaxis use (9.6% vs 46.9%) (P < 0.001). In public hospitals, the main reasons for non-compliance of treatment prescriptions were spectrum being too broad (30.5%) while in private it was incorrect dosing. Prolonged duration was the main reason for non-compliance among surgical prophylaxis prescriptions in both types of hospitals. CONCLUSIONS: Australian hospitals need to target specific areas to improve antimicrobial use. Specifically, unnecessary broad-spectrum therapy should be a priority area in public hospitals, whilst emphasis on curtailing antimicrobial overuse in surgical prophylaxis needs to be urgently addressed across in the private hospital sector.


Asunto(s)
Antiinfecciosos/uso terapéutico , Prescripciones de Medicamentos/estadística & datos numéricos , Hospitales Privados , Hospitales Públicos , Prescripción Inadecuada/estadística & datos numéricos , Anciano , Anciano de 80 o más Años , Australia , Femenino , Adhesión a Directriz , Humanos , Masculino , Persona de Mediana Edad , Pautas de la Práctica en Medicina/estadística & datos numéricos , Encuestas y Cuestionarios
8.
J Antimicrob Chemother ; 70(4): 1161-5, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25558073

RESUMEN

OBJECTIVES: The clinical utility of pharmacogenomic testing in haematology patients with invasive fungal disease (IFD) receiving azole therapy has not been defined. We report our experience with CYP2C19 testing in haematological patients requiring voriconazole therapy for IFD. METHODS: As a single-centre pilot study, 19 consecutive patients with a haematological malignancy undergoing active chemotherapy with a possible, probable or proven IFD requiring voriconazole therapy underwent CYP2C19 testing from 2013 to 2014. Baseline patient demographics, concurrent medications, voriconazole levels and IFD history were captured. RESULTS: The median voriconazole levels for intermediate metabolizer (IM) (CYP2C19*2 or 3/*1 or 17), extensive metabolizer (EM) (CYP2C19*1/*1) and heterozygote ultrarapid metabolizer (HUM)/ultrarapid metabolizer (UM) (UM, CYP2C19*17/*17; HUM, CYP2C19*1/*17) patients were 5.23, 3.3 and 1.25 mg/L, respectively. Time to therapeutic voriconazole levels was longest in the IM group, whilst voriconazole levels <1 mg/L were only seen in UM, HUM and EM phenotypes. The highest rates of clinical toxicity were seen in the IM group (3/5, 60%). CONCLUSIONS: Voriconazole exposure and toxicity was highest for IM and lowest for HUM/UM phenotypes. Time to therapeutic voriconazole level was longest in IM, whilst refractory subtherapeutic levels requiring CYP2C19 inhibition were only seen in the EM, HUM and UM phenotypes. CYP2C19 genotyping may predict those likely to have supratherapeutic or subtherapeutic levels and/or toxicity. Prospective evaluation of clinical pathways incorporating genotyping and voriconazole dose-titrating algorithms is required.


Asunto(s)
Antifúngicos/efectos adversos , Antifúngicos/uso terapéutico , Citocromo P-450 CYP2C19/genética , Técnicas de Genotipaje , Micosis/tratamiento farmacológico , Voriconazol/efectos adversos , Voriconazol/uso terapéutico , Anciano , Estudios de Cohortes , Femenino , Neoplasias Hematológicas/complicaciones , Humanos , Masculino , Persona de Mediana Edad , Farmacogenética/métodos , Proyectos Piloto , Resultado del Tratamiento
9.
Intern Med J ; 44(12b): 1350-63, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25482745

RESUMEN

Pneumocystis jirovecii infection (PJP) is a common cause of pneumonia in patients with cancer-related immunosuppression. There are well-defined patients who are at risk of PJP due to the status of their underlying malignancy, treatment-related immunosuppression and/or concomitant use of corticosteroids. Prophylaxis is highly effective and should be given to all patients at moderate to high risk of PJP. Trimethoprim-sulfamethoxazole is the drug of choice for prophylaxis and treatment, although several alternative agents are available.


Asunto(s)
Profilaxis Antibiótica , Huésped Inmunocomprometido/inmunología , Neoplasias/inmunología , Infecciones Oportunistas/microbiología , Infecciones Oportunistas/prevención & control , Pneumocystis carinii/patogenicidad , Neumonía por Pneumocystis/prevención & control , Combinación Trimetoprim y Sulfametoxazol/administración & dosificación , Corticoesteroides/administración & dosificación , Corticoesteroides/efectos adversos , Consenso , Esquema de Medicación , Humanos , Neoplasias/complicaciones , Infecciones Oportunistas/inmunología , Neumonía por Pneumocystis/inmunología , Neumonía por Pneumocystis/microbiología , Guías de Práctica Clínica como Asunto
10.
Intern Med J ; 44(12b): 1267-76, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25482739

RESUMEN

This article introduces the second revision of the Australian and New Zealand consensus guidelines for the use of antifungal agents in the haematology/oncology setting. The current update occurs within the context of a growing population at risk of invasive fungal disease, improved understanding of risk factors, availability of new diagnostic tests, a much-expanded evidence base and changing clinical paradigms. Here, we provide an overview of the history and purpose of the guidelines, including changes in scope since the last clinical update was published in 2008. The process for development, and for enabling review of draft recommendations by end-users and other relevant stakeholders, is described. The approach to assigning levels of evidence and grades of recommendation is also provided, along with a comparison to international grading systems.


Asunto(s)
Antifúngicos/administración & dosificación , Enfermedades Hematológicas/tratamiento farmacológico , Micosis/tratamiento farmacológico , Neoplasias/tratamiento farmacológico , Infecciones Oportunistas/prevención & control , Australia/epidemiología , Conferencias de Consenso como Asunto , Enfermedad Crítica , Esquema de Medicación , Guías como Asunto , Accesibilidad a los Servicios de Salud , Enfermedades Hematológicas/diagnóstico , Enfermedades Hematológicas/inmunología , Humanos , Huésped Inmunocomprometido , Micosis/diagnóstico , Neoplasias/diagnóstico , Neoplasias/inmunología , Nueva Zelanda/epidemiología , Infecciones Oportunistas/tratamiento farmacológico , Infecciones Oportunistas/inmunología , Guías de Práctica Clínica como Asunto , Ensayos Clínicos Controlados Aleatorios como Asunto , Juego de Reactivos para Diagnóstico , Factores de Riesgo
11.
Intern Med J ; 44(12b): 1333-49, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25482744

RESUMEN

Mould species represent the pathogens most commonly associated with invasive fungal disease in patients with haematological malignancies and patients of haemopoietic stem cell transplants. Invasive mould infections in these patient populations, particularly in the setting of neutropenia, are associated with high morbidity and mortality, and significantly increase the complexity of management. While Aspergillus species remain the most prevalent cause of invasive mould infections, Scedosporium and Fusarium species and the Mucormycetes continue to place a significant burden on the immunocompromised host. Evidence also suggests that infections caused by rare and emerging pathogens are increasing within the setting of broad-spectrum antifungal prophylaxis and improved survival times placing immunosuppressed patients at risk for longer. These guidelines present evidence-based recommendations for the antifungal management of common, rare and emerging mould infections in both adult and paediatric populations. Where relevant, the role of surgery, adjunctive therapy and immunotherapy is also discussed.


Asunto(s)
Antifúngicos/administración & dosificación , Neoplasias Hematológicas/inmunología , Trasplante de Células Madre Hematopoyéticas , Infecciones Oportunistas/microbiología , Profilaxis Pre-Exposición , Aspergilosis/tratamiento farmacológico , Aspergilosis/inmunología , Aspergilosis/prevención & control , Consenso , Esquema de Medicación , Farmacorresistencia Fúngica , Medicina Basada en la Evidencia , Fusariosis/tratamiento farmacológico , Fusariosis/inmunología , Fusariosis/prevención & control , Neoplasias Hematológicas/complicaciones , Neoplasias Hematológicas/terapia , Humanos , Huésped Inmunocomprometido/inmunología , Neutropenia/inmunología , Infecciones Oportunistas/prevención & control , Guías de Práctica Clínica como Asunto
12.
Intern Med J ; 44(12b): 1277-82, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25482740

RESUMEN

This article reports the findings of a survey developed to assess the current use of antifungal prophylaxis among haematology and infectious disease clinicians across Australia and New Zealand, and their alignment with existing consensus guidelines for the use of antifungal agents in the haematology/oncology setting (published 2008). Surveyed clinicians largely followed the current recommendations for prophylaxis in the setting of induction chemotherapy for acute myeloid leukaemia, as well as autologous and low-risk allogeneic haemopoietic stem cell transplantation (HSCT). In keeping with guideline recommendations, posaconazole was the agent used by most centres for high-risk allogeneic HSCT. However, its routine continuation for 75-100 days post-transplantation without de-escalation suggested use beyond those indications described in the 2008 guidelines, namely pre-engraftment neutropenia and graft-versus-host disease. Variations in practice were observed in other settings, such as acute lymphoblastic leukaemia and myelodysplastic syndrome, reflecting the general lack of evidence for antifungal prophylaxis in these patient populations and changing perceptions of risk. With regard to the availability of testing in cases of suspected breakthrough IFD, 40% of centres did not have access to investigative bronchoscopy within 48 h of referral, and results of Aspergillus galactomannan (GM), fungal polymerase chain reaction and therapeutic drug monitoring (TDM) were not available within 48 h in 83%, 90% and 85% of centres respectively. The survey's findings will influence the recommendations provided in the updated 2014 consensus guidelines for the use of antifungal agents in the haematology/oncology setting.


Asunto(s)
Aspergilosis/microbiología , Enfermedad Injerto contra Huésped/microbiología , Neoplasias Hematológicas/inmunología , Neoplasias Hematológicas/cirugía , Trasplante de Células Madre Hematopoyéticas/métodos , Infecciones Oportunistas/microbiología , Profilaxis Pre-Exposición , Antifúngicos/uso terapéutico , Aspergilosis/prevención & control , Australia , Quimioprevención , Conferencias de Consenso como Asunto , Recolección de Datos , Pruebas Diagnósticas de Rutina , Enfermedad Injerto contra Huésped/prevención & control , Neoplasias Hematológicas/complicaciones , Humanos , Nueva Zelanda , Infecciones Oportunistas/prevención & control , Guías de Práctica Clínica como Asunto , Triazoles/uso terapéutico
13.
Mycoses ; 57(9): 572-6, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-24761988

RESUMEN

We report a case of non-fatal disseminated Scedosporium prolificans infection, including central nervous system disease and endophthalmitis, in a relapsed acute myeloid leukaemia patient with extensive CYP2C19 metabolism. Successful treatment required aggressive surgical debridement, three times daily voriconazole dosing and cimetidine CYP2C19 inhibition. In addition, the unique use of miltefosine was employed due to azole-chemotherapeutic drug interactions. Prolonged survival following disseminated S. prolificans, adjunctive miltefosine and augmentation of voriconazole exposure with cimetidine CYP2C19 inhibition has not been reported.


Asunto(s)
Citocromo P-450 CYP2C19/metabolismo , Interacciones Farmacológicas , Micosis/diagnóstico , Micosis/microbiología , Farmacogenética , Scedosporium/aislamiento & purificación , Anciano , Antifúngicos/uso terapéutico , Cimetidina/uso terapéutico , Desbridamiento , Humanos , Leucemia Mieloide Aguda/complicaciones , Masculino , Micosis/tratamiento farmacológico , Micosis/cirugía , Voriconazol/uso terapéutico
14.
Intern Med J ; 43(9): 979-86, 2013 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-23809725

RESUMEN

BACKGROUND: Although Australian consensus guidelines support the use of ambulatory care strategies for management of adult patients with low-risk neutropenic fever (NF), few centres have successfully implemented viable programmes. AIMS: To study the feasibility of an early discharge programme for adult patients with low-risk NF and assess organisational factors likely to influence successful implementation across participating Victorian hospitals. METHODS: Four hospitals participated in an organisational readiness assessment preceding selection of a pilot site for programme implementation. Prospective baseline auditing of current practice (i.e. inpatient care until resolution of NF) across three hospitals preceded programme implementation and evaluation. RESULTS: Barriers and facilitators to successful implementation were identified. One hundred and seventeen NF episodes were evaluated during audit phases. The frequency of low-risk NF presentations eligible for early discharge was low (less than two episodes per week). The programme reduced median (interquartile range) duration of parenteral antibiotics and length of stay for eligible patients (n = 11) from 4 (4, 5) days at baseline to 1 (1, 2) day during pilot (P = 0.02) and 4.5 (4, 5) days (baseline) to 2 (1, 3) days (pilot) (P = 0.02) respectively. The proportion of ineligible patients stepped down to oral antibiotics was improved from 38% (baseline) to 67% (pilot). No patients failed ambulatory care requiring readmission into hospital. CONCLUSION: The ambulatory care strategy for management of NF proposed by Australian consensus guidelines has been successfully piloted at a single Victorian centre. Organisational readiness tools can be used to identify potential barriers to the implementation of evidence based practices in patients with NF.


Asunto(s)
Atención Ambulatoria/organización & administración , Atención Ambulatoria/normas , Neutropenia/terapia , Alta del Paciente/normas , Estudios de Factibilidad , Humanos , Neutropenia/epidemiología , Proyectos Piloto , Evaluación de Procesos, Atención de Salud/organización & administración , Evaluación de Procesos, Atención de Salud/normas , Estudios Prospectivos , Resultado del Tratamiento , Victoria/epidemiología
15.
J Clin Pharm Ther ; 38(6): 490-7, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-23992301

RESUMEN

WHAT IS KNOWN AND OBJECTIVE: Web-based decision support tools have rationalized prescribing of antimicrobials in healthcare settings. Clinicians' acceptance of decision support tools is one of the important factors that determine successful implementation of such tools. This study evaluated the impact of a formative evaluation on the uptake of a web-based antibiotic computerized decision support system (CDSS) by clinicians at a university teaching hospital. METHODS: Semi-structured qualitative interviews were conducted with junior and senior doctors and pharmacists. Interviews were transcribed verbatim and reviewed to identify barriers surrounding clinicians' use of the antibiotic CDSS. Recommendations were made to the development team of the studied system regarding system modifications and the implementation strategy. An automated log of the clinicians' use of antibiotic CDSS was generated before and after the formative evaluation. RESULTS: Interviews of 42 clinicians identified several barriers related to contents and implementation strategy of the antibiotic CDSS. Important differences were observed between senior and junior doctors about various aspects of the antibiotic restriction strategy and applicability of antibiotic CDSS in specialized clinical areas. Recommendations from the formative evaluation study resulted in significant modifications to the contents and implementation strategy of the antibiotic CDSS. A significant increase in uptake of the antibiotic CDSS by clinicians was observed following the formative evaluation. WHAT IS NEW AND CONCLUSION: The formative evaluation approach during the implementation period of the studied antibiotic CDSS increased clinicians' uptake of the system. Formative evaluation may be recommended as a routine strategy to implement future CDSS and related clinical computing applications in hospital settings.


Asunto(s)
Antiinfecciosos/uso terapéutico , Internet , Antibacterianos/uso terapéutico , Actitud del Personal de Salud , Prescripciones de Medicamentos/estadística & datos numéricos , Utilización de Medicamentos , Encuestas de Atención de la Salud , Humanos , Farmacéuticos , Médicos , Políticas , Guías de Práctica Clínica como Asunto
16.
Intern Med J ; 42(2): 176-83, 2012 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-21309995

RESUMEN

BACKGROUND: FDG-PET/CT is widely used in the management of a variety of malignancies with excellent overall accuracy, despite the potential for false positive results related to infection and inflammation. AIM: As cancer patients can develop clinically inapparent infections, we evaluated the prevalence and nature of incidental findings reported to be suggestive of infections that had been identified during clinical cancer staging with FDG-PET/CT. METHODS: The study involved a retrospective analysis of 60 patients managed primarily at our facility from a total of 121 cases identified as having possible infection on clinical reporting of more than 4500 cancer staging investigations performed during the calendar year of 2008. RESULTS: Occult infections were uncommon overall (≤1%), but most often because of pneumonia (31.6%), upper respiratory tract infections (21.1%) or wound infections (15.8%). Abnormal scans contributed to patients' management in 52.7% of cases. Two out of 13 patients whose scan abnormalities were not investigated further had worsening changes on repeated scan and one of these patients had clinical deterioration. CONCLUSIONS: In patients with FDG-PET/CT scans suggestive of infection and in whom a final diagnosis could be reached, the positive predictive value for FDG-PET/CT scans was 89% suggesting that abnormal scans indicative of infection should be investigated further in this population.


Asunto(s)
Fluorodesoxiglucosa F18 , Hallazgos Incidentales , Imagen Multimodal/métodos , Estadificación de Neoplasias/métodos , Tomografía de Emisión de Positrones , Infecciones del Sistema Respiratorio/diagnóstico por imagen , Tomografía Computarizada por Rayos X , Infección de Heridas/diagnóstico por imagen , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Infecciones del Sistema Respiratorio/epidemiología , Infección de Heridas/epidemiología , Adulto Joven
17.
Intern Med J ; 41(10): 715-21, 2011 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-22435900

RESUMEN

Legionella species are a common cause of community-acquired pneumonia, infrequently complicated by cavitary disease. We describe Legionella pneumophila pneumonia and abscess formation in an immunosuppressed patient receiving corticosteroid therapy for metastatic breast carcinoma. The predisposing role of corticosteroids is discussed and the management of this complication is reviewed.


Asunto(s)
Huésped Inmunocomprometido , Legionella pneumophila/aislamiento & purificación , Enfermedad de los Legionarios/inmunología , Absceso Pulmonar/microbiología , Adulto , Antibacterianos/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Australia/epidemiología , Azitromicina/uso terapéutico , Neoplasias Encefálicas/tratamiento farmacológico , Neoplasias Encefálicas/radioterapia , Neoplasias Encefálicas/secundario , Neoplasias de la Mama/complicaciones , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/inmunología , Ceftriaxona/uso terapéutico , Terapia Combinada , Irradiación Craneana , Dexametasona/efectos adversos , Dexametasona/uso terapéutico , Diagnóstico Diferencial , Drenaje , Femenino , Humanos , Legionella pneumophila/inmunología , Enfermedad de los Legionarios/complicaciones , Enfermedad de los Legionarios/diagnóstico por imagen , Enfermedad de los Legionarios/tratamiento farmacológico , Enfermedad de los Legionarios/epidemiología , Enfermedad de los Legionarios/cirugía , Absceso Pulmonar/diagnóstico por imagen , Absceso Pulmonar/tratamiento farmacológico , Absceso Pulmonar/etiología , Absceso Pulmonar/inmunología , Absceso Pulmonar/cirugía , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/secundario , Metronidazol/uso terapéutico , Roxitromicina/uso terapéutico , Cirugía Torácica Asistida por Video , Toracostomía , Tomografía Computarizada por Rayos X
18.
Intern Med J ; 41(1b): 102-9, 2011 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-21272174

RESUMEN

The use of oral prophylactic antibiotics in patients with neutropenia is controversial and not recommended by this group because of a lack of evidence showing a reduction in mortality and concerns that such practice promotes antimicrobial resistance. Recent evidence has demonstrated non-significant but consistent, improvement in all-cause mortality when fluoroquinolones (FQs) are used as primary prophylaxis. However, the consensus was that this evidence was not strong enough to recommend prophylaxis. The evidence base for FQ prophylaxis is presented alongside current consensus opinion to guide the appropriate and judicious use of these agents. Due consideration is given to patient risk, as it pertains to specific patient populations, as well as the net effect on selective pressure from antibiotics if FQ prophylaxis is routinely used in a target population. The potential costs and consequences of emerging FQ resistance, particularly among Escherichia coli, Clostridium difficile and Gram-positive organisms, are considered. As FQ prophylaxis has been advocated in some chemotherapy protocols, specific regard is given to whether FQ prophylaxis should be used to support these regimens. The group also provides recommendations for monitoring and surveillance of emerging resistance in those centres that have adopted FQ prophylaxis.


Asunto(s)
Antibacterianos/uso terapéutico , Profilaxis Antibiótica/normas , Infecciones Bacterianas/prevención & control , Fiebre/prevención & control , Fluoroquinolonas/uso terapéutico , Neoplasias/complicaciones , Neutropenia/complicaciones , Adulto , Antibacterianos/administración & dosificación , Antibacterianos/efectos adversos , Antineoplásicos/efectos adversos , Antineoplásicos/uso terapéutico , Infecciones Bacterianas/complicaciones , Infecciones Bacterianas/tratamiento farmacológico , Instituciones Oncológicas/normas , Carcinoma de Pulmón de Células no Pequeñas/complicaciones , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Terapia Combinada , Contraindicaciones , Monitoreo de Drogas , Farmacorresistencia Bacteriana Múltiple , Medicina Basada en la Evidencia , Fiebre/tratamiento farmacológico , Fiebre/etiología , Fluoroquinolonas/administración & dosificación , Fluoroquinolonas/efectos adversos , Neoplasias Hematológicas/complicaciones , Neoplasias Hematológicas/tratamiento farmacológico , Neoplasias Hematológicas/cirugía , Trasplante de Células Madre Hematopoyéticas , Humanos , Neoplasias Pulmonares/complicaciones , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias/tratamiento farmacológico , Neoplasias/cirugía
19.
Intern Med J ; 41(1b): 121-9, 2011 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-21272176

RESUMEN

BACKGROUND: Although the incidence of neutropenic fever (FN) is estimated to be up to 80% for some malignancies, the epidemiological characteristics and economic burden are not well understood for Australian patients. AIMS: To describe underlying malignant conditions, potential aetiologies, clinical outcomes and healthcare utilization for an Australian population with FN, and to estimate the economic burden of this condition within the Australian healthcare sector. METHODS: Epidemiological features of FN were extracted from a population-based hospital morbidity dataset, the Victorian Admitted Episodes Dataset (VAED), for a 12-month period (2008). These were analysed according for a range of malignancy categories. Economic burden of hospitalizations was estimated according to data presented in the Round 12 National Hospital Cost Data Collection Report. RESULTS: A total of 2599 admitted episodes across 92 Victorian hospitals fulfilled inclusion criteria for FN. Metropolitan hospitalizations accounted for 79% episodes. FN illness comprised underlying solid tumours diagnoses (40%), followed by leukaemia (29.3%), lymphoma (22%) and myeloma (8.5%). Length of hospital stay was >15 days for approximately one-third of hospitalizations. intensive care unit admission rates were 5.9-11.7%. Weighted average costs of hospitalization (AUD) for solid tumours, lymphoma, myeloma and leukaemia were $8309 ± $391, 18,145 ± $1602, $21,764 ± $1289 and $22,596 ± $2618 respectively. CONCLUSIONS: Using VAED indices, epidemiological features of Australian patients with FN appear comparable with international reports. In contrast to US data, estimated healthcare costs are up to 50% lower in the Australian healthcare sector. These data offer important insights for prioritizing of research agendas and resource allocation.


Asunto(s)
Instituciones Oncológicas/estadística & datos numéricos , Fiebre/tratamiento farmacológico , Costos de Hospital/estadística & datos numéricos , Neoplasias/complicaciones , Neutropenia/complicaciones , Adulto , Antiinfecciosos/economía , Antiinfecciosos/uso terapéutico , Infecciones Bacterianas/complicaciones , Infecciones Bacterianas/tratamiento farmacológico , Infecciones Bacterianas/economía , Infecciones Bacterianas/epidemiología , Costos y Análisis de Costo , Cuidados Críticos/economía , Cuidados Críticos/estadística & datos numéricos , Infección Hospitalaria/complicaciones , Infección Hospitalaria/tratamiento farmacológico , Infección Hospitalaria/economía , Infección Hospitalaria/epidemiología , Bases de Datos Factuales , Grupos Diagnósticos Relacionados , Fiebre/economía , Fiebre/epidemiología , Fiebre/etiología , Hospitalización/economía , Humanos , Incidencia , Tiempo de Internación/economía , Tiempo de Internación/estadística & datos numéricos , Micosis/complicaciones , Micosis/tratamiento farmacológico , Micosis/economía , Micosis/epidemiología , Neoplasias/tratamiento farmacológico , Neoplasias/economía , Neoplasias/epidemiología , Neutropenia/inducido químicamente , Neutropenia/economía , Neutropenia/epidemiología , Prevalencia , Victoria/epidemiología
20.
Intern Med J ; 41(1b): 82-9, 2011 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-21272172

RESUMEN

Utilization of risk-stratification tools in the setting of neutropenic fever is currently limited by inadequate knowledge and lack of awareness. Within this context, the approach to management of low-risk patients with neutropenic fever is inconsistent with the available evidence across many Australian treating centres. These clinical guidelines define and clarify an accepted standard of care for this patient group given the current evidence base. The Multinational Association for Supportive Care in Cancer risk index is presented as the preferred risk assessment tool for determining patient risk. Suitability of ambulatory care within specific patient populations is discussed, with defined eligibility criteria provided to guide clinical decision-making. Detailed recommendations for implementing appropriate ambulatory strategies, such as early discharge and outpatient antibiotic therapy, are also provided. Due consideration is given to infrastructural requirements and other supportive measures at a resourcing and operational level. An analysis of the relevant health economics is also presented.


Asunto(s)
Atención Ambulatoria/métodos , Manejo de la Enfermedad , Fiebre/tratamiento farmacológico , Neoplasias/complicaciones , Neutropenia/complicaciones , Gestión de Riesgos , Índice de Severidad de la Enfermedad , Adulto , Atención Ambulatoria/organización & administración , Antibacterianos/uso terapéutico , Australia , Instituciones Oncológicas/organización & administración , Instituciones Oncológicas/normas , Farmacorresistencia Bacteriana Múltiple , Medicina Basada en la Evidencia , Fiebre/etiología , Humanos , Grupo de Atención al Paciente , Alta del Paciente , Pautas de la Práctica en Medicina , Recurrencia , Riesgo
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