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1.
Eur J Cancer ; 207: 114153, 2024 Jun 06.
Artigo em Inglês | MEDLINE | ID: mdl-38870747

RESUMO

BACKGROUND: Frailty in newly-diagnosed multiple myeloma (NDMM) patients is associated with treatment-related toxicity, which negatively affects health-related quality of life (HRQoL). Currently, data on changes in HRQoL of frail and intermediate-fit MM patients during active treatment and post-treatment follow-up are absent. METHODS: The HOVON123 study (NTR4244) was a phase II trial in which NDMM patients ≥ 75 years were treated with nine dose-adjusted cycles of Melphalan-Prednisone-Bortezomib (MPV). Two HRQoL instruments (EORTC QLQ-C30 and -MY20) were obtained before start of treatment, after 3 and 9 months of treatment and 6 and 12 months after treatment for patients who did not yet start second-line treatment. HRQoL changes and/or differences in frail and intermediate-fit patients (IMWG frailty score) were reported only when both statistically significant (p < 0.005) and clinically relevant (>MID). RESULTS: 137 frail and 71 intermediate-fit patients were included in the analysis. Compliance was high and comparable in both groups. At baseline, frail patients reported lower global health status, lower physical functioning scores and more fatigue and pain compared to intermediate-fit patients. Both groups improved in global health status and future perspective; polyneuropathy complaints worsened over time. Frail patients improved over time in physical functioning, fatigue and pain. Improvement in global health status occurred earlier than in intermediate-fit patients. CONCLUSION: HRQoL improved during anti-myeloma treatment in both intermediate-fit and frail MM patients. In frail patients, improvement occurred faster and, in more domains, which was retained during follow-up. This implies that physicians should not withhold safe and effective therapies from frail patients in fear of HRQoL deterioration.

2.
Qual Life Res ; 24(12): 2895-906, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26205768

RESUMO

PURPOSE: To describe the health-related quality of life (HRQoL) of an unselected population of patients with chronic lymphocytic leukaemia (CLL) including untreated patients. METHODS: HRQoL was measured by the EORTC QLQ-C30 including the CLL16 module, EQ-5D, and VAS in an observational study over multiple years. All HRQoL measurements per patient were connected and analysed using area under the curve analysis over the entire study duration. The total patient group was compared with the general population, and three groups of CLL patients were described separately, i.e. patients without any active treatment ("watch and wait"), chlorambucil treatment only, and patients with other treatment(s). RESULTS: HRQoL in the total group of CLL patients was compromised when compared with age- and gender-matched norm scores of the general population. CLL patients scored statistically worse on the VAS and utility score of the EQ-5D, all functioning scales of the EORTC QLQ-C30, and the symptoms of fatigue, dyspnoea, sleeping disturbance, appetite loss, and financial difficulties. In untreated patients, the HRQoL was slightly reduced. In all treatment stages, HRQoL was compromised considerably. Patients treated with chlorambucil only scored worse on the EORTC QLQ-C30 than patients who were treated with other treatments with regard to emotional functioning, cognitive functioning, bruises, uncomfortable stomach, and apathy. CONCLUSIONS: CLL patients differ most from the general population on role functioning, fatigue, concerns about future health, and having not enough energy. Once treatment is indicated, HRQoL becomes considerably compromised. This applies to all treatments, including chlorambucil, which is considered to be a mild treatment.


Assuntos
Nível de Saúde , Leucemia Linfocítica Crônica de Células B/psicologia , Qualidade de Vida , Adulto , Idoso , Clorambucila/efeitos adversos , Clorambucila/uso terapêutico , Dispneia/psicologia , Fadiga/psicologia , Feminino , Humanos , Leucemia Linfocítica Crônica de Células B/tratamento farmacológico , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Países Baixos , Transtornos do Sono-Vigília/psicologia , Inquéritos e Questionários
3.
Leuk Res ; 38(1): 84-90, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24268350

RESUMO

We performed a comprehensive cost calculation identifying the main cost drivers of treatment of chronic lymphocytic leukaemia in daily practice. In our observational study 160 patient charts were reviewed repeatedly to assess the treatment strategies from diagnosis till the study end. Ninety-seven patients (61%) received ≥1 treatment lines during an average follow-up time of 6.4 years. The average total costs per patient were €41,417 (€539 per month). The costs varied considerably between treatment groups and between treatment lines. Although patients were treated with expensive chemo(immuno-)therapy, the main cost driver was inpatient days for other reasons than administration of chemo(immuno-)therapy.


Assuntos
Testes Diagnósticos de Rotina/economia , Tratamento Farmacológico/economia , Leucemia Linfocítica Crônica de Células B/diagnóstico , Leucemia Linfocítica Crônica de Células B/terapia , Transplante de Células-Tronco/economia , Adulto , Idoso , Idoso de 80 Anos ou mais , Análise Custo-Benefício , Custos e Análise de Custo , Testes Diagnósticos de Rotina/métodos , Tratamento Farmacológico/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Países Baixos , Transplante de Células-Tronco/métodos
4.
Eur J Cancer ; 49(15): 3176-83, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23849828

RESUMO

BACKGROUND: Prostate cancer truly is an age-associated disease. Due to the increased life expectancy and more sensitive diagnostic techniques in the Western world, prostate cancer is diagnosed more frequently and with rapidly increasing incidence and prevalence rates. However, age above 65 or 70 years has been an exclusion criterion in clinical trials for decades and the knowledge about chemotherapy tolerance in elderly is limited. METHODS: We performed a retrospective analysis of data acquired from the recently published Netherlands Prostate Study (NePro) to evaluate the influence of advanced age on docetaxel therapy in elderly men (>70 years) with castration resistant prostate cancer (CRPC) and bone metastases. Statistical analyses were performed stratified for age into four categories: <70 (n=315), 70-74 (n=150), 75-79 (n=85), and ≥80 years old (n=18). RESULTS: We analysed 568 patients (median age 68.1 years, range 46-89 years, 44.5% aged ≥70 years). There was no relation between dosage and age (p=0.60). We found no significant differences between the number of dose reductions, time to progression (TTP), overall survival, chemotherapy tolerance and toxicity up to the age of 80 years. However, when compared to younger men, men aged 80 years or above more frequently experienced grade 3/4 toxicity and were five times less likely to complete the first three treatment cycles at the intended dose (Odds ratio (OR) 5.34, p=0.0052) and showed decreased overall survival (15.3 months versus 24.5 months in <80 years group, p=0.020). CONCLUSION: In CRPC patients up to the age of 80 years, docetaxel chemotherapy is well tolerated, with toxicity levels and TTP comparable to those of younger patients. For chemotherapeutic treatment of patients above the age of 80 years an individual assessment should be made.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias de Próstata Resistentes à Castração/tratamento farmacológico , Taxoides/uso terapêutico , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Ensaios Clínicos Fase II como Assunto , Ensaios Clínicos Fase III como Assunto , Docetaxel , Ácido Etidrônico/administração & dosagem , Ácido Etidrônico/efeitos adversos , Ácido Etidrônico/análogos & derivados , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Multicêntricos como Assunto , Países Baixos , Prednisona/administração & dosagem , Prednisona/efeitos adversos , Ensaios Clínicos Controlados Aleatórios como Assunto , Estudos Retrospectivos , Ácido Risedrônico , Análise de Sobrevida , Taxoides/administração & dosagem , Taxoides/efeitos adversos
5.
Clin Microbiol Infect ; 15(7): 625-33, 2009 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-19673973

RESUMO

Patterns of invasive fungal infections are changing in many ways. Although yeast infections appear to have reached a stable incidence, the number of infections as a result of Aspergillus species appears to be increasing. Especially for mould infection, the diagnosis remains difficult and the detection and identification of clinically relevant isolates to the species level requires new validated techniques. Diagnostic tests are becoming more accurate, with biological markers such as PCR, galactomannan and 1,3 beta-D-glucan undergoing clinical validation. This is of importance because an early diagnosis is associated with increased survival. Correct diagnosis and in vitro susceptibility testing are becoming imperative for guidance of therapy in the context of changing epidemiology and the emergence of acquired resistance to antifungal drugs, as is insight into host factors that increase susceptibility to invasive mould infection and into the risks associated with new treatment modalities of underlying diseases. Despite improvements in the survival rates of patients with invasive fungal infection in recent years, continued research is required to meet the challenges associated with changes in epidemiology and resistance development.


Assuntos
Aspergilose , Aspergillus , Micoses/epidemiologia , Antifúngicos/farmacologia , Antifúngicos/uso terapêutico , Aspergilose/diagnóstico , Aspergilose/epidemiologia , Aspergilose/genética , Aspergilose/mortalidade , Aspergillus/efeitos dos fármacos , Aspergillus/patogenicidade , Fungos/efeitos dos fármacos , Fungos/patogenicidade , Predisposição Genética para Doença , Humanos , Micoses/diagnóstico , Micoses/tratamento farmacológico , Micoses/mortalidade
6.
Ann Oncol ; 17(3): 443-9, 2006 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-16500914

RESUMO

BACKGROUND: A phase III study was started to compare oxaliplatin/5FU/LV in the first-line with bolus FU/LV in metastatic colorectal cancer. PATIENTS AND METHODS: 302 patients were randomised and received bolus 5-FU 425 mg/m(2) day 1-5, FA 20 mg/m(2) day 1-5, q 4 wk or oxaliplatin 85 mg/m(2), 2 h-infusion, FA 200 mg/m(2), 1-h infusion. 5-FU 2600 mg/m(2), 24-h infusion day 1, q 2 wk. The primary endpoint was response rate (RR). RESULTS: The median follow-up is 31.8 months, 90.4% of the patients have died. Confirmed RR, progression free survival (PFS; months) and median overall survival (OS; months) in 5FU/LV versus 5FU/LV/oxaliplatin were respectively 18.5% versus (vs) 33.8% (P = 0.004), 5.6 vs 6.7 (P = 0.016) and 13.3 vs 13.8 (P = 0.619). In the 5FU/LV/oxaliplatin arm less grade (3/4) toxicity was measured for diarrhoea, stomatitis, an increase in idiosyncratic side effects and neurosensory events compared with 5FU/LV. The quality of life (QOL) was equal in both arms. Second line treatment was given in 62% of the patients, crossover of 5FU/LV to 5FU/LV/oxaliplatin occurred in 14%. CONCLUSIONS: Oxaliplatin in the first-line resulted in an increased RR and PFS with less grade 3/4 mucositis/diarrhoea compared with 5FU/LV alone. Idiosyncratic side effects deserve attention with oxaliplatin. Despite a low treatment cross over rate, OS in both groups was comparable.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Relação Dose-Resposta a Droga , Esquema de Medicação , Fluoruracila/administração & dosagem , Humanos , Leucovorina/administração & dosagem , Compostos Organoplatínicos/administração & dosagem , Oxaliplatina , Qualidade de Vida , Terapia de Salvação
7.
Br J Cancer ; 89(7): 1192-9, 2003 Oct 06.
Artigo em Inglês | MEDLINE | ID: mdl-14520444

RESUMO

The purpose of our study was to compare progression-free survival and quality of life (QOL) after cisplatin-gemcitabine (CG) or epirubicin-gemcitabine (EG) in chemotherapy-naive patients with unresectable non-small-cell lung cancer. Patients (n=240) were randomised to receive gemcitabine 1125 mg x m(-2) (days 1 and 8) plus either cisplatin 80 mg x m(-2) (day 2) or epirubicin 100 mg x m(-2) (day 1) every 3 weeks for a maximum of five cycles. Eligible patients had normal organ functions and Eastern Cooperative Oncology Group performance status

Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Desoxicitidina/análogos & derivados , Neoplasias Pulmonares/tratamento farmacológico , Adenocarcinoma/tratamento farmacológico , Adenocarcinoma/patologia , Adenocarcinoma/secundário , Adulto , Idoso , Idoso de 80 Anos ou mais , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Carcinoma de Células Grandes/tratamento farmacológico , Carcinoma de Células Grandes/patologia , Carcinoma de Células Grandes/secundário , Carcinoma Pulmonar de Células não Pequenas/patologia , Carcinoma de Células Escamosas/tratamento farmacológico , Carcinoma de Células Escamosas/patologia , Carcinoma de Células Escamosas/secundário , Cisplatino/administração & dosagem , Desoxicitidina/administração & dosagem , Epirubicina/administração & dosagem , Feminino , Humanos , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Qualidade de Vida , Taxa de Sobrevida , Resultado do Tratamento , Gencitabina
8.
Drug Resist Updat ; 5(1): 3-10, 2002 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-12127859

RESUMO

The management of invasive fungal infections has been hampered by the inability to diagnose the infection at an early stage of disease. Although proving the presence of infection by histology and culture remains the cornerstone of the diagnosis, non-culture based methods are becoming available that enable early detection. Molecular diagnosis by PCR appears very promising since fungal DNA can be detected in the blood of infected patients before conventional methods. Furthermore, a broad range of yeasts and molds can be identified to species level. Automation of sample preparation and use of real-time PCR systems will help standardize the procedure and reduce false positive results due to contamination. Promising assays for the detection of fungal antigens in serum have been commercialized, including detection systems for mannan (Candida) and galactomannan (Aspergillus). Circulating antigens can be detected at an early stage of infection, often before the onset of clinical symptoms. Antigen detection is limited to detecting only one genus and not enabling speciation. Furthermore, both PCR and antigen detection can be used to monitor the response of patients to treatment with anti-fungal agents. Although prospective screening of high-risk patients for the presence of circulating markers of fungal infection appears to be an appropriate strategy, studies are needed to help to establish the optimal approach to managing invasive fungal infections that incorporates the benefits of non-culture based methods.


Assuntos
Hospedeiro Imunocomprometido/imunologia , Micoses/diagnóstico , Micoses/imunologia , Animais , Fungos/genética , Glucanos/análise , Glucanos/metabolismo , Humanos , Hospedeiro Imunocomprometido/fisiologia , Micoses/terapia , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Sorologia
9.
Clin Infect Dis ; 34(1): 7-14, 2002 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-11731939

RESUMO

During the past several decades, there has been a steady increase in the frequency of opportunistic invasive fungal infections (IFIs) in immunocompromised patients. However, there is substantial controversy concerning optimal diagnostic criteria for these IFIs. Therefore, members of the European Organization for Research and Treatment of Cancer/Invasive Fungal Infections Cooperative Group and the National Institute of Allergy and Infectious Diseases Mycoses Study Group formed a consensus committee to develop standard definitions for IFIs for clinical research. On the basis of a review of literature and an international consensus, a set of research-oriented definitions for the IFIs most often seen and studied in immunocompromised patients with cancer is proposed. Three levels of probability are proposed: "proven," "probable," and "possible." The definitions are intended for use in the context of clinical and/or epidemiological research, not for clinical decision making.


Assuntos
Aspergilose/complicações , Candidíase/complicações , Transplante de Células-Tronco Hematopoéticas , Hospedeiro Imunocomprometido/imunologia , Neoplasias/complicações , Infecções Oportunistas/complicações , Aspergilose/diagnóstico , Candidíase/diagnóstico , Tomada de Decisões , Humanos , Neoplasias/imunologia , Infecções Oportunistas/imunologia , Infecções Oportunistas/microbiologia
11.
J Antimicrob Chemother ; 45(6): 843-9, 2000 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-10837439

RESUMO

Glycopeptide antibiotics are used extensively in the empirical treatment of febrile patients with neutropenia. To come to a more rational and restricted application of these expensive drugs and to reduce the risk of emergence of resistance, we carried out a prospective, double-blinded, placebo-controlled single-centre study to investigate whether the addition of teicoplanin improved the outcome of neutropenic patients who remained febrile after 72-96 h of imipenem monotherapy. Patients with known infections caused by imipenem-resistant microorganisms were excluded. From the 114 evaluable episodes (out of a total of 125) in 105 patients who met the eligibility criteria, 56 episodes were randomized to receive teicoplanin and 58 to placebo. At 72 h after the start of the assigned intervention, 52 (45.6%) of the patients were afebrile; at the end of the aplastic phase, 10 (8.8%) had succumbed. There was no difference between the two study arms. When febrile episodes were subdivided between microbiologically documented infections, clinically documented infections and fevers of unknown origin, again no significant differences were observed. With the exception of methicillin-resistant bacteria, Gram-positive infections seemed to respond well to imipenem monotherapy. It is concluded that the addition of teicoplanin on empirical grounds, i.e. for persistent fever only, is not necessary and that the use of glycopeptides should be restricted to well-defined clinical situations where methicillin-resistant bacteria are involved. Furthermore, it seems that many neutropenic patients respond slowly over more than 72-96 h even when they are treated with antibacterial drugs such as imipenem that are effective against the causative microorganism.


Assuntos
Antibacterianos/uso terapêutico , Febre/tratamento farmacológico , Imipenem/uso terapêutico , Neutropenia/tratamento farmacológico , Teicoplanina/uso terapêutico , Tienamicinas/uso terapêutico , Adulto , Temperatura Corporal , Método Duplo-Cego , Feminino , Febre/microbiologia , Infecções por Bactérias Gram-Positivas/tratamento farmacológico , Infecções por Bactérias Gram-Positivas/microbiologia , Humanos , Masculino , Resistência a Meticilina , Pessoa de Meia-Idade , Neutropenia/microbiologia , Estudos Prospectivos , Recidiva , Resultado do Tratamento
12.
Br J Cancer ; 82(4): 806-11, 2000 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-10732750

RESUMO

The aim of the study was to evaluate efficacy and tolerance of epirubicin and gemcitabine as first-line chemotherapy in patients with advanced non-small-cell lung cancer. A phase I study was performed with the combination of escalating doses of epirubicin intravenously on day 1 and a fixed dose of gemcitabine on days 1 and 8 of a 21 -day cycle. Eighteen patients were included in the phase I part of the study before the maximum tolerated dose was found. Dose-limiting toxicity was febrile neutropenia. The phase II part of the study was continued with epirubicin 100 mg m(-2) on day 1 and gemcitabine 1125 mg m(-2) on days 1 and 8 of a 21-day cycle. Forty-three chemotherapy-naive patients were included. The median age of the patients was 60 years (range 26-75). Most patients (74%) were in stage IV. Granulocytopenia CTC grade 4 occurred in 32.5% and thrombocytopenia grade 4 in 11.6% of cycles. Febrile neutropenia occurred in six patients. Non-haematological toxicity was mainly mucositis CTC grade 2 and 3 in 35% of patients. The tumour response rate was 49% (95% confidence interval (CI) 35-63%). The median survival time for the patients was 42 weeks (95% CI 13-69).


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Desoxicitidina/administração & dosagem , Desoxicitidina/análogos & derivados , Epirubicina/administração & dosagem , Humanos , Qualidade de Vida , Gencitabina
14.
J Clin Microbiol ; 36(6): 1612-6, 1998 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-9620387

RESUMO

The intra- and interlaboratory reproducibilities of a commercial sandwich enzyme-linked immunosorbent assay (ELISA) for the detection of Aspergillus galactomannan in serum (Platelia Aspergillus; Sanofi Diagnostics Pasteur, Marnes-La-Coquette, France) were evaluated in six laboratories of university hospitals. Twenty serum samples were obtained from 12 neutropenic patients including 6 with invasive aspergillosis. These samples were blinded and sent to each center together with eight blinded ELISA-negative serum samples spiked with known concentrations of galactomannan. The centers were provided with ELISA microtiter plates from a single batch and a detailed protocol. Ten clinical samples showed ELISA reactivity, while 10 samples were ELISA negative. The mean coefficient of variation (CV) of the optical density values was 4.24% within a single assay and 25.6% between runs. The interassay CV of the ratios for the serum samples tested was 18.6%. Analysis of ordinal interpretation of the ELISA result (i.e., negative, gray zone, or positive) showed excellent reproducibility. Recalculation of the cutoff values for positive and negative samples suggested that the cutoff level recommended by the manufacturer could be lowered from 1.0 to 0.8 for negative samples and from 1.5 to 1.0 for positive samples. The intra- and interlaboratory reproducibilities were excellent when the ELISA results were interpreted as ordinal data, but considerable variation in optical density values and, to a lesser extent, in the ratios for the serum samples tested, was observed between runs. High assay variability was also found for serum samples spiked with known concentrations of galactomannan. Therefore, antigen titers in serum samples from a single patient, measured in different runs, should be compared with caution.


Assuntos
Antígenos de Fungos/sangue , Aspergilose/diagnóstico , Aspergillus/imunologia , Ensaio de Imunoadsorção Enzimática , Mananas/sangue , Aspergilose/complicações , Galactose/análogos & derivados , Hospitais Universitários , Humanos , Laboratórios Hospitalares , Mananas/imunologia , Países Baixos , Neutropenia/complicações , Variações Dependentes do Observador , Controle de Qualidade , Reprodutibilidade dos Testes
15.
Eur J Clin Microbiol Infect Dis ; 16(5): 364-8, 1997 May.
Artigo em Inglês | MEDLINE | ID: mdl-9228476

RESUMO

The tolerance of aerosolised amphotericin B as prophylaxis against invasive pulmonary aspergillosis was investigated in 61 granulocytopenic periods in 42 patients treated for a haematologic malignancy. Each patient was to receive amphotericin B in doses escalating to 10 mg three times daily (t.i.d.), but only 20 (48%) patients managed to complete the scheduled regimen. One patient tolerated the full dose initially, but had to discontinue treatment when dyspnea developed as a result of pneumonia and acute respiratory distress. Another 22 patients (52%) experienced side effects, including eight (19%) who reported mild coughing and dyspnea but who tolerated the full dose and three (7%) patients whose dose was reduced to 5 mg t.i.d. Another six (14%) patients could tolerate only 5 mg t.i.d., and five (12%) others stopped treatment because of intolerance. Elderly patients (p < 0.05) and those with a history of chronic pulmonary obstructive disease (p = 0.09) were more likely to develop side effects during inhalation. Twelve (28%) patients developed proven of possible invasive fungal infections, but no correlation was established between infection and the total amount of amphotericin B inhaled. Inhalation of aerosolised amphotericin B is poorly tolerated and does not appear useful in preventing invasive pulmonary aspergillosis in granulocytopenic patients.


Assuntos
Anfotericina B/uso terapêutico , Antifúngicos/uso terapêutico , Aspergilose/prevenção & controle , Fungemia/prevenção & controle , Neoplasias Hematológicas/complicações , Pneumopatias Fúngicas/prevenção & controle , Administração por Inalação , Adolescente , Adulto , Idoso , Agranulocitose/complicações , Agranulocitose/imunologia , Anfotericina B/efeitos adversos , Antifúngicos/efeitos adversos , Aspergilose/etiologia , Distribuição de Qui-Quadrado , Intervalos de Confiança , Relação Dose-Resposta a Droga , Feminino , Fungemia/etiologia , Neoplasias Hematológicas/imunologia , Humanos , Pneumopatias Fúngicas/etiologia , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
16.
J Med Vet Mycol ; 35(6): 399-403, 1997.
Artigo em Inglês | MEDLINE | ID: mdl-9467106

RESUMO

The specificity of random primer R143 for Aspergillus fumigatus DNA was determined in order to test its usefulness in establishing the presence of A. fumigatus DNA in fungal cultures. When PCR reaction products of these cultures were compared with those of 21 other bacterial and fungal DNA samples, R143 proved to produce a 1346 bp band with only A. fumigatus. This band has been sequenced completely and the EcoRI restriction site was used for subsequent confirmation of PCR products. The specificity for A. fumigatus DNA was also confirmed by Southern blotting. Comparison of morphological typing of Aspergillus species in cultures with PCR using R143 on DNA isolated from these cultures showed concordance in 22 of 24 cases. In two cases there was discordance: both times PCR results showed correctly the presence of A. fumigatus, initially not detected by culture. R143 is an A. fumigatus specific random primer, with potential for use in detection of A. fumigatus DNA in clinical specimens.


Assuntos
Microbiologia do Ar , Aspergillus fumigatus/genética , DNA Fúngico/análise , Aspergillus fumigatus/isolamento & purificação , Sequência de Bases , Southern Blotting , Primers do DNA/química , DNA Fúngico/química , Eletroforese em Gel de Ágar , Reação em Cadeia da Polimerase , Análise de Sequência de DNA
17.
Eur J Clin Microbiol Infect Dis ; 14(3): 188-92, 1995 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-7614958

RESUMO

Twelve febrile patients with severe neutropenia, who had undergone aggressive chemotherapy for acute myeloid leukemia, were treated empirically with a continuous infusion of ceftazidime 100 mg/kg/day after a 500 mg loading dose, in order to study the pharmacokinetics of ceftazidime after continuous infusion and to examine the clinical applicability of continuous infusion in this patient population. Three patients had a slight decrease in renal function. All patients attained a steady-state ceftazidime serum level of > 20 micrograms/ml within 180 to 240 min, which was considered effective against most pathogens in neutropenic patients. The median volume of distribution for the patient group was 29.1 l, the elimination half-life was 2.5 h and the clearance of ceftazidime was 7.7 l/h. A subnormal kidney function influenced half-lives and clearance (but not volume of distribution), as expected. When precautions were taken to avoid known interactions between ceftazidime and other compounds to be infused simultaneously, continuous infusion of ceftazidime was applicable for treatment of neutropenic patients without major side effects.


Assuntos
Ceftazidima/farmacocinética , Ceftazidima/uso terapêutico , Leucemia Mieloide Aguda/complicações , Neutropenia/tratamento farmacológico , Adulto , Idoso , Antineoplásicos/efeitos adversos , Antineoplásicos/uso terapêutico , Ceftazidima/administração & dosagem , Ceftazidima/efeitos adversos , Feminino , Febre de Causa Desconhecida/tratamento farmacológico , Febre de Causa Desconhecida/etiologia , Humanos , Infusões Intravenosas , Leucemia Mieloide Aguda/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Neutropenia/etiologia , Resultado do Tratamento
18.
Scand J Infect Dis ; 26(5): 585-95, 1994.
Artigo em Inglês | MEDLINE | ID: mdl-7855556

RESUMO

143 aplastic episodes with fever in 91 haematological patients with granulocytopenia were treated empirically in a randomized prospective study using either imipenem (Imi) or a combination of tobramycin and cefuroxime (T/C). Response after 72 h was significantly better in patients receiving Imi (44/75 vs 27/68, p < 0.05). This was seen especially in patients with bacteriologically proven infections where the isolated staphylococci and streptococci were more susceptible to Imi. In both groups, patients who failed to respond to the initial antibiotic therapy were given vancomycin and aztreonam (V/A). The response rate after another 72 h, measured using the same criteria as after the first 72 h, did not differ statistically between the groups. One patient in each study group died from the bacterial infection, both from Gram-positive bacteraemia. Duration of fever was significantly shorter in the Imi group (4 days vs 7 days, p < 0.04). Serum peak and trough concentrations of the antibiotics were comparable. Both regimens were well tolerated. Our results show that monotherapy with imipenem is superior to the combination of tobramycin and cefuroxime during the first 72 h of therapy and can be safely administered to neutropenic patients with predominantly Gram-positive infections. A combination of vancomycin and aztreonam, given when initial imipenem treatment has failed, was effective in only a few patients. Adjuvant glycopeptide therapy from the outset in the treatment of febrile granulocytopenic patients did not seem worthwhile.


Assuntos
Agranulocitose/etiologia , Quimioterapia Combinada/uso terapêutico , Febre de Causa Desconhecida/etiologia , Infecções por Bactérias Gram-Positivas/tratamento farmacológico , Imipenem/uso terapêutico , Adolescente , Adulto , Idoso , Agranulocitose/tratamento farmacológico , Aztreonam/administração & dosagem , Aztreonam/uso terapêutico , Cefuroxima/administração & dosagem , Cefuroxima/uso terapêutico , Quimioterapia Combinada/administração & dosagem , Feminino , Febre de Causa Desconhecida/tratamento farmacológico , Infecções por Bactérias Gram-Positivas/complicações , Humanos , Imipenem/administração & dosagem , Masculino , Testes de Sensibilidade Microbiana , Pessoa de Meia-Idade , Estudos Prospectivos , Tobramicina/administração & dosagem , Tobramicina/uso terapêutico , Falha de Tratamento , Vancomicina/administração & dosagem , Vancomicina/uso terapêutico
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