Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 85
Filtrar
1.
Support Care Cancer ; 28(7): 3113-3123, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31691033

RESUMO

PURPOSE: Limited data about oral mucositis (OM) in stem cell transplant patients with underlying hematological disease is available in Germany. The purpose of this feasibility study was to determine the incidence, treatment patterns, patients' adherence, and costs of OM. METHODS: Prospective, noninterventional single-center observational study. INCLUSION CRITERIA: allogenic/autologous stem cell transplant patients ≥ 18 years, high-dose chemotherapy. OM assessment: WHO Oral Toxicity Scale. Adherence was measured in patient interviews. Preventive and therapeutic measures were extracted from patients' charts. RESULTS: Forty-five patients (25 allogenic, 20 autologous) were enrolled. Twenty-six (58%) patients developed OM (54% grade I/II, 46% grade III/IV). Age ≥ 65 (31% vs 69%, p = 0.021) was associated with a lower OM incidence. A positive history of smoking (1.77 vs 2.69, p = 0.036) was associated with a lower OM grade, patients with unrelated donors (2.63 vs 1.29, p = 0.014) were associated with higher OM grades and females (80% vs 47%, RR = 1.71, p = 0.035) with a higher incidence. OM patients were less adherent to recommended daily mouth rinses (35% vs 68%, p = 0.027). More analgesic treatment (80% vs 32%, p = 0.001) and intravenous opioids (24% vs 0%, p = 0.023) were prescribed in OM patients. Total drug treatment and nutrition costs were 824€ (p = 0.037) higher in autologous transplanted patients. CONCLUSION: Initial risk and consecutive OM assessment, determination of patients' adherence, resource consumption, and costs are prerequisites to evaluate OM care. In the best case, several centers will follow the same methodological approach and the collected data will serve as a basis for benchmarking analyses to optimize OM care where required.


Assuntos
Transplante de Células-Tronco Hematopoéticas/estatística & dados numéricos , Estomatite/epidemiologia , Adulto , Efeitos Psicossociais da Doença , Estudos de Viabilidade , Feminino , Alemanha/epidemiologia , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Transplante de Células-Tronco Hematopoéticas/economia , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Antissépticos Bucais/administração & dosagem , Cooperação do Paciente/estatística & dados numéricos , Estudos Prospectivos , Índice de Gravidade de Doença , Estomatite/tratamento farmacológico , Estomatite/economia , Estomatite/etiologia , Transplante Autólogo , Adulto Jovem
2.
Ann Hematol ; 96(11): 1775-1792, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28856437

RESUMO

Fever may be the only clinical symptom at the onset of infection in neutropenic cancer patients undergoing myelosuppressive chemotherapy. A prompt and evidence-based diagnostic and therapeutic approach is mandatory. A systematic search of current literature was conducted, including only full papers and excluding allogeneic hematopoietic stem cell transplant recipients. Recommendations for diagnosis and therapy were developed by an expert panel and approved after plenary discussion by the AGIHO. Randomized clinical trials were mainly available for therapeutic decisions, and new diagnostic procedures have been introduced into clinical practice in the past decade. Stratification into a high-risk versus low-risk patient population is recommended. In high-risk patients, initial empirical antimicrobial therapy should be active against pathogens most commonly involved in microbiologically documented and most threatening infections, including Pseudomonas aeruginosa, but excluding coagulase-negative staphylococci. In patients whose expected duration of neutropenia is more than 7 days and who do not respond to first-line antibacterial treatment, specifically in the absence of mold-active antifungal prophylaxis, further therapy should be directed also against fungi, in particular Aspergillus species. With regard to antimicrobial stewardship, treatment duration after defervescence in persistently neutropenic patients must be critically reconsidered and the choice of anti-infective agents adjusted to local epidemiology. This guideline updates recommendations for diagnosis and empirical therapy of fever of unknown origin in adult neutropenic cancer patients in light of the challenges of antimicrobial stewardship.


Assuntos
Doenças Transmissíveis/diagnóstico , Febre de Causa Desconhecida/diagnóstico , Hematologia/normas , Oncologia/normas , Neutropenia/diagnóstico , Guias de Prática Clínica como Assunto/normas , Doenças Transmissíveis/epidemiologia , Doenças Transmissíveis/terapia , Febre de Causa Desconhecida/epidemiologia , Febre de Causa Desconhecida/terapia , Alemanha/epidemiologia , Hematologia/métodos , Humanos , Oncologia/métodos , Neutropenia/epidemiologia , Neutropenia/terapia , Sociedades Médicas/normas
3.
Ann Hematol ; 94(5): 847-55, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25544029

RESUMO

Invasive fungal disease (IFD) is a feared complication in patients with hematological malignancies. In 2008, the European Organization for Research and Treatment of Cancer/Invasive Fungal Infections Cooperative Group and the National Institute of Allergy and Infectious Diseases Mycosis Study Group (EORTC/MSG) published updated criteria for the diagnostic workup within clinical studies for immunosuppressed patients with suspected fungal infection. We applied these criteria in a routine clinical setting with regard to their feasibility for bedside practice at our institution in a 1-year period. One hundred seventy consecutive patients with a recent history of chemotherapy-induced neutropenia (n = 100) or allogeneic stem cell recipients (n = 70) who had received a CT scan of the chest in search of pulmonary IFD were examined. We analyzed all available radiological and microbiological data according to the EORTC/MSG criteria. The quality of images was good in 94.7%, microbiological diagnostics performed in 94.1% patients. Five patients had histopathologic-proven IFD, 18 patients were classified as "probable," 55 patients as "possible" IFD, and 92 patients did not fulfill any criteria ("no IFD"). Microbiology revealed suggestive findings in 29 patients. These were either galactomannan antigen (Gm-AG) in serum (n = 18) and/or broncho-alveolar lavage (BAL) (n = 5). CT scan showed pulmonary infiltrates in 106 patients; 78 were classified as typical for IPA, further discriminated by morphology and number of nodules, as well as additional signs (halo, air crescent, cavity). We observed a better overall survival in patients without infiltrates compared to those with any type of infiltrate (p = 0.042) and a trend toward favorable survival in patients who had micronodular lesions (p = 0.058). We also found a higher probability of Gm-AG positivity in the group of allogeneic stem cell transplantation (allo-SCT) patients (p = 0.001) and a trend toward an association of Gm-AG positivity and positive findings on CT (p = 0.054). The applicability of criteria was good, both with regard to radiological and mycological evidence and sufficient for the categorization of IFD according to EORTC/MSG in the clinical setting. However, our findings suggest that feasibility improves with stringency of mycological workup, which is reflected in the two subgroups. Radiology harvests by far more suggestive findings which can only partly be correlated with mycological evidence. Although feasible, whether the EORTC/MSG criteria are the appropriate tool for early identification of IFD remains open for discussion.


Assuntos
Micoses/tratamento farmacológico , Adulto , Idoso , Antifúngicos/uso terapêutico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neutropenia/tratamento farmacológico
4.
Mycoses ; 55(6): 514-20, 2012 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-22471310

RESUMO

Invasive fungal disease (IFD) causes increasing morbidity and mortality in haematological cancer patients. Reliable cost data for treating IFD in German hospitals is not available. Objective of the study was to determine the institutional cost of treating the IFD. Data were obtained by retrospective chart review in German hospitals. Patients had either newly diagnosed or relapsed acute myeloid leukaemia (AML) or myelodysplastic syndrome (MDS). Direct medical cost was calculated from hospital provider's perspective. A total of 108 patients were enrolled at 5 tertiary care hospitals, 36 IFD patients and 72 controls. The vast majority of IFD patients (74%) were diagnosed with invasive aspergillosis. On average, the hospital stay for IFD patients was 12 days longer than in control patients. All patients in the IFD group and 89% of patients in the control group received antifungal drugs. Mean direct costs per patient were €51,517 in the IFD group and €30,454 in the control group. Incremental costs of €21,063 were dominated by cost for antifungal drugs (36%), hospital stay (32%) and blood products (23%). From the perspective of hospitals in Germany the economic burden of IFD in patients with AML or MDS is substantial. Therefore, prevention of IFD is necessary with respect to both clinical and economic reasons.


Assuntos
Custos de Cuidados de Saúde , Leucemia Mieloide Aguda/economia , Micoses/tratamento farmacológico , Micoses/economia , Síndromes Mielodisplásicas/economia , Adulto , Idoso , Idoso de 80 Anos ou mais , Antifúngicos/economia , Antifúngicos/uso terapêutico , Feminino , Alemanha , Humanos , Tempo de Internação/economia , Leucemia Mieloide Aguda/complicações , Leucemia Mieloide Aguda/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Micoses/complicações , Síndromes Mielodisplásicas/complicações , Síndromes Mielodisplásicas/tratamento farmacológico , Estudos Retrospectivos , Adulto Jovem
5.
Ann Oncol ; 22(5): 1019-1029, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21041377

RESUMO

Sepsis is a leading cause of mortality in neutropenic cancer patients. Early initiation of effective causative therapy as well as intensive adjunctive therapy is mandatory to improve outcome. We give recommendations for the management of adults with neutropenia and sepsis. The guidelines are written for clinicians involved in care of cancer patients and focus on pathophysiology, diagnosis and treatment of sepsis during neutropenia.


Assuntos
Anti-Infecciosos/uso terapêutico , Neutropenia/terapia , Sepse/tratamento farmacológico , Adulto , Anticoagulantes/uso terapêutico , Antineoplásicos/efeitos adversos , Doenças Cardiovasculares/etiologia , Doenças Cardiovasculares/terapia , Gerenciamento Clínico , Transtornos do Metabolismo de Glucose/etiologia , Transtornos do Metabolismo de Glucose/terapia , Humanos , Neoplasias/complicações , Neoplasias/tratamento farmacológico , Neutropenia/induzido quimicamente , Neutropenia/complicações , Insuficiência Renal/etiologia , Insuficiência Renal/terapia , Insuficiência Respiratória/etiologia , Insuficiência Respiratória/terapia , Sepse/diagnóstico , Sepse/etiologia , Sepse/microbiologia
6.
Mycoses ; 54(5): e557-68, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21518025

RESUMO

The objectives of this study were to identify unsolved issues in the management of invasive aspergillosis, identify controversies and achieve consensus. The German Speaking Mycological Society (Deutschsprachige Mykologische Gesellschaft, DMykG) invited other German infectious diseases (ID) and mycological societies to submit unsolved issues concerning the diagnosis and treatment of invasive aspergillosis. Based on these contributions, a digital web-based questionnaire of 12 questions on Aspergillus spp. was designed to be completed by experts of the participating societies. Controversial results were identified by a mathematical model and were discussed at a consensus conference during the 43rd Annual Meeting of the DMykG in Cologne, Germany. Forty-two individuals completed the questionnaire. Analysis showed a strong consensus on effective preventive measures, choice of antifungal agents for pre-emptive, empiric and targeted treatment, as well as the evaluation of early chest CT control scans as a measure of treatment response assessment. Opinions on the indication for a pulmonary biopsy of a halo sign in high-risk neutropenic patients and on the role of Aspergillus spp. PCR as well as galactomannan from serum in the assessment of treatment duration diverged in spite of discussion such that a consensus could not be reached. Using a recently published two-step approach - web-based survey plus classical panel discussion - expert consensus was achieved on 10 of 12 questions concerning the diagnosis and treatment of invasive aspergillosis.


Assuntos
Aspergilose Pulmonar Invasiva/diagnóstico , Aspergilose Pulmonar Invasiva/prevenção & controle , Antifúngicos/administração & dosagem , Aspergillus/isolamento & purificação , Biópsia/estatística & dados numéricos , Quimioprevenção/métodos , Conferências de Consenso como Assunto , Coleta de Dados , Alemanha , Humanos , Internet , Radiografia Torácica/estatística & dados numéricos , Inquéritos e Questionários , Tomografia Computadorizada por Raios X/estatística & dados numéricos
7.
Mycoses ; 54(5): e546-56, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21554423

RESUMO

The objectives of this study were to identify unsolved issues in the management of invasive candidiasis, identify controversies and achieve consensus. The German Speaking Mycological Society (Deutschsprachige Mykologische Gesellschaft, DMykG e.V.) asked other German infectious diseases (ID) and mycological societies to submit unsolved issues concerning the diagnosis and treatment of fungal infections. Based on these contributions, a digital web-based questionnaire of 12 questions on Candida infections was designed to be completed by experts of the participating societies. Controversial results were identified by a mathematical model and were discussed at a consensus conference during the 43rd Annual Meeting of the DMykG e.V. in Cologne, Germany. Forty-two individuals completed the questionnaire. Analysis showed a strong consensus on treatment indications, choice of antifungals for clinical situations, handling of central venous catheters, duration of treatment and role of susceptibility testing. Opinions diverged on: initial treatment of haemodynamically stable neutropenic and haemodynamically unstable non-neutropenic patients, step down to oral treatment and the differential role of the echinocandins. These questions were presented for discussion at the expert consensus conference. In three of four questions, consensus was achieved. A two-step approach - web-based survey plus classical panel discussion - allows to capture expeditiously the opinions of a large and diverse group of individuals, to identify controversial issues and to resolve them in a personal, interactive setting. Thus, expert consensus was achieved on nine of 12 important questions on how to treat invasive candidiasis.


Assuntos
Antifúngicos/uso terapêutico , Candidíase Invasiva/diagnóstico , Candidíase Invasiva/tratamento farmacológico , Antifúngicos/farmacologia , Conferências de Consenso como Assunto , Coleta de Dados , Alemanha , Humanos , Internet , Testes de Sensibilidade Microbiana , Inquéritos e Questionários
8.
Internist (Berl) ; 52(2): 201-4, 2011 Feb.
Artigo em Alemão | MEDLINE | ID: mdl-20938629

RESUMO

We report a case of a patient with thrombocytopenia. A sporadic MYH9-associated disease, May Hegglin anomaly, was identified by giant platelets, leucocyte inclusion bodies and the typical distribution of NMMHC-IIA in granulocytes in the absence of impaired renal function, cataract and hearing loss. MYH9-associated diseases are an underestimated differential diagnosis of idiopathic thrombocytopenia. The correct diagnosis is important to prevent unnecessary treatment of a patient with thrombocytopenia and to provide sufficient patient information and genetic counseling. Therefore, careful examination of the blood smear has to be the first diagnostic step in a case of unexplained thrombocytopenia.


Assuntos
Doenças do Complexo Imune/complicações , Doenças do Complexo Imune/diagnóstico , Trombocitopenia/diagnóstico , Trombocitopenia/etiologia , Adulto , Diagnóstico Diferencial , Humanos , Doenças do Complexo Imune/terapia , Trombocitopenia/terapia , Resultado do Tratamento
9.
Transpl Infect Dis ; 11(3): 220-6, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-19298239

RESUMO

BACKGROUND: Bacterial, viral, and fungal pathogens frequently cause severe, life-threatening infections in immunocompromised patients after allogeneic hematopoietic stem cell transplantation (SCT). OBJECTIVE: To compare the frequency of infections in patients with matched-related (Group A) or with human leukocyte antigen (HLA)-matched-unrelated donors (Group B). PATIENTS AND METHODS: Patients treated at our transplantation unit between April 2004 and April 2005 were enrolled into this analysis. Documentation comprised demographic data, conditioning treatment, stem cell source, clinical course, as well as microbiological and clinical data and mortality. RESULTS: We analyzed 59 patients, 22 in Group A and 37 in Group B. Both groups were well balanced regarding demographic data. Diagnoses were acute myeloid leukemia (30 of 59 patients, 50.8%), multiple myeloma (15.2%), acute lymphoblastic leukemia (11.9%), and chronic myeloid leukemia (10.2%). Patients in Group A developed infections in 95.5% of the cases compared with 97.3% in patients in Group B. Most frequently detected pathogens were Staphylococcus species, human herpesvirus-6, and Epstein-Barr virus. Three proven fungal infections were detected in Group A compared with 9 proven fungal infections in Group B. Lung infiltrations were observed in equivalent incidence in both groups. Two years after transplantation, 55.9% of patients were alive (Group A: 68.2%; Group B: 48.6%, not significant). CONCLUSION: Allogeneic SCT from HLA-matched-unrelated donors does not have a higher infection risk than patients transplanted from matched-related donors.


Assuntos
Infecções Bacterianas/epidemiologia , Seleção do Doador , Micoses/epidemiologia , Transplante de Células-Tronco/efeitos adversos , Transplante Homólogo/efeitos adversos , Viroses/epidemiologia , Adulto , Infecções Bacterianas/diagnóstico , Infecções Bacterianas/etiologia , Feminino , Teste de Histocompatibilidade , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Micoses/diagnóstico , Micoses/etiologia , Medição de Risco , Viroses/diagnóstico , Viroses/etiologia
10.
Anaesthesist ; 58(2): 171-9, 2009 Feb.
Artigo em Alemão | MEDLINE | ID: mdl-19189066

RESUMO

Administration of high-dose antithrombin (AT) was investigated on a large collective of patients with severe sepsis in the KyberSept study. In the total study the administration of AT resulted in no significant reduction of the mortality rate in comparison to a placebo. However, in the protocol of this study subgroups were predefined, which when analyzed revealed that the group of patients who received AT but not simultaneously heparin did show a reduction of the mortality rate in comparison to the placebo group. The reduction of the absolute mortality rate of 15% reached statistical significance on day 90. Even patients classified as risk group grade II according to the Simplified Acute Physiology Score (SAPS), showed a significant reduction of the mortality rate of approximately 22% after 90 days without simultaneous administration of heparin. Such a positive result for administration of AT without simultaneous heparin treatment can also be found when severe sepsis complicated by disseminated intravascular coagulation (DIC) is present. Coagulation diagnostic assists the recognition of latent or fulminant DIC and also in surveillance of the course and development. The results of AT supplementation for severe sepsis and DIC are in agreement with earlier studies on smaller patient collectives and suggest that a randomized controlled clinical study should be carried out on a subcollective of severely ill patients.


Assuntos
Antitrombinas/uso terapêutico , Coagulação Intravascular Disseminada/terapia , Fibrinolíticos/uso terapêutico , Sepse/terapia , Antitrombinas/efeitos adversos , Coagulação Intravascular Disseminada/complicações , Coagulação Intravascular Disseminada/diagnóstico , Fibrinolíticos/efeitos adversos , Heparina/efeitos adversos , Heparina/uso terapêutico , Humanos , Medição de Risco , Sepse/complicações , Sepse/diagnóstico
11.
Med Mal Infect ; 39(6): 397-400, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-19167851

RESUMO

Plesiomonas shigelloides is known to cause mild to cholera-like diarrhea in most infected persons. In immunocompromised patients extra-intestinal manifestations have been described. We report the first case of pneumonia caused by P. shigelloides in a 76-year-old woman who had undergone a curative gastrectomy and esophageal-jejunostomy due to a low differentiated adenocarcinoma of the stomach (pT2, pN1 pMx, G3, R0, Lauren: intestinal type). The patient was admitted in hospital with clinical signs of pulmonary infection. CT-scan revealed a cavernous lesion in the right upper pulmonary lobe. Bronchial lavage showed a granulocytic inflammation 105CFU/ml P. shigelloides. Although antibiotic treatment led to a decrease of inflammation parameters and decrease of the pulmonary infiltrate the patient died due to development of torsades de pointes tachycardia leading to ventricular fibrillation and hypoxic brain damage.


Assuntos
Adenocarcinoma/cirurgia , Gastrectomia/efeitos adversos , Infecções por Bactérias Gram-Negativas/etiologia , Jejunostomia/efeitos adversos , Plesiomonas , Neoplasias Gástricas/cirurgia , Idoso , Feminino , Infecções por Bactérias Gram-Negativas/diagnóstico por imagem , Infecções por Bactérias Gram-Negativas/tratamento farmacológico , Humanos , Inflamação/microbiologia , Radiografia , Taquicardia/etiologia , Torsades de Pointes/etiologia , Inconsciência/etiologia , Fibrilação Ventricular/etiologia
12.
Internist (Berl) ; 50(6): 685-90, 2009 Jun.
Artigo em Alemão | MEDLINE | ID: mdl-19404586

RESUMO

Fever is a common symptom in patients with malignancies. On the one hand it may be an (initial) symptom of cancer, on the other hand it may occur as a side effect of chemotherapy. Often a precise cause of fever can not be established and in these cases febrile temperatures >38.3 degrees C without proof of infection or relapse/progress of tumor is defined as fever of unknown origin. Especially hematologic neoplasias are accompanied by fever. Here, neoplastic fever must be distinguished from fever following immunosuppressive chemotherapy. In the latter severe infections due to neutropenia induced by cytoreductive chemotherapy is often identified as the cause of fever. These patients display a high morbidity and mortality, especially if an empiric anti-infectious treatment is not administered in time. A meticulous diagnostic work-up is therefore necessary, and until proven otherwise, an infectious cause must be considered and empiric antibiotic treatment initiated.


Assuntos
Febre de Causa Desconhecida/diagnóstico , Febre de Causa Desconhecida/etiologia , Neoplasias/complicações , Neoplasias/diagnóstico , Diagnóstico Diferencial , Humanos
13.
Bone Marrow Transplant ; 54(1): 123-129, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-29795422

RESUMO

Mobilization and collection of peripheral blood stem cells is part of the standard treatment procedure for non-Hodgkin's lymphoma patients eligible for high-dose chemotherapy with autologous stem cell transplantation. Mobilization is usually achieved with chemotherapy and/or cytokines, but plerixafor might be added in case of poor mobilization. Due to the high cost several institutions have developed their own management pathway to optimize use of plerixafor. Such models are however rarely generalizable; in a multi-center, European, non-interventional study, evaluating the impact of plerixafor in poor mobilizers, country specific differences in patient treatment and cost structure were obvious. For German centers, there was a non-significant reduction in the number of apheresis sessions carried out and in apheresis costs. In contrast to other European countries the majority of German Plerixafor patients were very poor mobilizing patients with initial CD34+ cell count ≤ 10/µl (40/51). In this group the number of apheresis sessions decreased from 2.1 to 1.6 sessions per patient (p = 0.01) and costs decreased from €6246 to €4758 (p = 0.01). Our results show that preemptive plerixafor use has a strong effect in poor mobilizers with an initial CD34+ cell count ≤ 10 cells/µl.


Assuntos
Mobilização de Células-Tronco Hematopoéticas/economia , Compostos Heterocíclicos , Linfoma não Hodgkin , Adulto , Idoso , Benzilaminas , Remoção de Componentes Sanguíneos/economia , Custos e Análise de Custo , Ciclamos , Feminino , Alemanha , Compostos Heterocíclicos/administração & dosagem , Compostos Heterocíclicos/economia , Humanos , Contagem de Leucócitos , Linfoma não Hodgkin/sangue , Linfoma não Hodgkin/economia , Linfoma não Hodgkin/terapia , Masculino , Pessoa de Meia-Idade , Fatores de Tempo
14.
J Thromb Haemost ; 4(1): 90-7, 2006 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-16409457

RESUMO

BACKGROUND: Disseminated intravascular coagulation (DIC) is a serious complication of sepsis that is associated with a high mortality. OBJECTIVES: Using the adapted International Society on Thrombosis and Haemostasis (ISTH) diagnostic scoring algorithm for DIC, we evaluated the treatment effects of high-dose antithrombin (AT) in patients with severe sepsis with or without DIC. PATIENTS AND METHODS: From the phase III clinical trial in severe sepsis (KyberSept), 563 patients were identified (placebo, 277; AT, 286) who did not receive concomitant heparin and had sufficient data for DIC determination. RESULTS: At baseline, 40.7% of patients (229 of 563) had DIC. DIC in the placebo-treated patients was associated with an excess risk of mortality (28-day mortality: 40.0% vs. 22.2%, P < 0.01). AT-treated patients with DIC had an absolute reduction in 28-day mortality of 14.6% compared with placebo (P = 0.02) whereas in patients without DIC no effect on 28-day mortality was seen (0.1% reduction in mortality; P = 1.0). Bleeding complications in AT-treated patients with and without DIC were higher compared with placebo (major bleeding rates: 7.0% vs. 5.2% for patients with DIC, P = 0.6; 9.8% vs. 3.1% for patients without DIC, P = 0.02). CONCLUSIONS: High-dose AT without concomitant heparin in septic patients with DIC may result in a significant mortality reduction. The adapted ISTH DIC score may identify patients with severe sepsis who potentially benefit from high-dose AT treatment.


Assuntos
Antitrombina III/uso terapêutico , Coagulação Intravascular Disseminada/tratamento farmacológico , Sepse/tratamento farmacológico , Idoso , Antitrombina III/efeitos adversos , Coagulação Intravascular Disseminada/etiologia , Coagulação Intravascular Disseminada/mortalidade , Método Duplo-Cego , Etnicidade , Feminino , Hemorragia/induzido quimicamente , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Sepse/complicações , Sepse/mortalidade , Índice de Gravidade de Doença , Análise de Sobrevida , Resultado do Tratamento
16.
Arch Neurol ; 58(5): 806-10, 2001 May.
Artigo em Inglês | MEDLINE | ID: mdl-11346376

RESUMO

BACKGROUND: Bacterial meningitis is rarely complicated by acute spinal cord involvement (eg, myelitis, ischemic infarction, spinal abscess, or epidural hemorrhage). In spinal cord dysfunction, magnetic resonance imaging (MRI) is the imaging modality of choice. Still, MRI findings of myelitis due to bacterial meningitis in adults have not been reported. METHODS: Spinal MRIs were obtained during the acute stage of meningitis and on follow-up in 3 adults with bacterial meningitis that was complicated by paraparesis or tetraparesis and bowel and bladder incontinence. The causative pathogens were Streptococcus pneumoniae and Neisseria meningitidis; in 1 patient, the pathogen was not identified. RESULTS: In all cases, spinal MRI ruled out a compression of the cord by an extramedullary mass but demonstrated hyperintensities on T2-weighted images that predominantly involved the gray matter and extended from the cervical to the lumbar cord. Leptomeningeal and discrete nodular intramedullary enhancement on T1-weighted images was detected only in 1 patient. Follow-up examinations revealed that hyperintensities resolved completely in 1 patient, while a central cavitation developed in the cervical spinal cord of another, and the MRI findings were progressive during the first 4 weeks in the third patient. In all cases, severe paresis and bowel and bladder incontinence persisted. CONCLUSION: We demonstrate for the first time the MRI findings of adults with acute spinal cord involvement during bacterial meningitis. Magnetic resonance imaging showed central intramedullary hyperintensities on T2-weighted images that extended from the cervical to the lumbar cord, indicating myelitis. Clinical follow-up examinations suggest that myelitis during bacterial meningitis has an unfavorable prognosis.


Assuntos
Meningites Bacterianas/fisiopatologia , Medula Espinal/fisiopatologia , Adolescente , Adulto , Feminino , Humanos , Recém-Nascido , Imageamento por Ressonância Magnética , Masculino , Meningite Meningocócica , Mielite/diagnóstico , Mielite/microbiologia , Infecções Pneumocócicas
17.
Atherosclerosis ; 145(1): 173-80, 1999 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-10428308

RESUMO

UNLABELLED: The plasminogen activator (PA)/plasmin system is involved in various pathological processes that are considered important features of atherogenesis and atherothrombosis. These include the proteolysis of fibrin deposits and extracellular matrix components as well as the induction of cell migration and mitogenesis. Tissue-type PA (TPA) is a key enzyme mediating plasminogen to plasmin conversion. TPA plasma concentrations are elevated in patients with advanced atherosclerosis and correlate with an increased risk for myocardial infarction and stroke. In this study, we have analysed the content and expression of TPA in human coronary arteries and their relation to the presence and severity of atherosclerotic lesions. METHODS: Segments of coronary arteries obtained from heart explants (n = 15) were classified by the presence and types of atherosclerotic lesions. TPA was quantitatively determined in protein extracts of intimal and medial layers. In situ hybridization and immunohistochemical analyses were performed on serial sections of representative tissue specimens. RESULTS: PA activity entirely attributable to the presence of active TPA was consistently detected in the protein extracts. Extractable TPA antigen and activity showed a significant graded increase in relation to the presence and severity of atherosclerotic lesions. The ratios of active over total TPA were increased several-fold in extracts of advanced lesions despite a concomitant threefold increase in TPA complexed to its inhibitor PA-1. In macroscopically normal arterial segments and in early lesions, TPA was expressed in the endothelium and in colocalization with vascular smooth muscle cells (VSMCs). In advanced plaques, TPA mRNA was mainly detected in the lateral regions of the fibrous caps in association with migrating VSMCs and in the vicinity of the core areas infiltrated by CD68-positive macrophages. CONCLUSIONS: TPA content and expression is consistently increased in relation to the severity of the lesions in atherosclerotic coronary arteries. This may contribute to plaque destabilization and disruption. Conversely, the increased intramural TPA activity may counteract mural fibrin deposition.


Assuntos
Doença da Artéria Coronariana/metabolismo , Vasos Coronários/metabolismo , Ativador de Plasminogênio Tecidual/metabolismo , Artérias/metabolismo , Doença da Artéria Coronariana/patologia , Vasos Coronários/patologia , Humanos , Imuno-Histoquímica , Hibridização In Situ , Ativadores de Plasminogênio/metabolismo
18.
Semin Oncol ; 21(6 Suppl 16): 57-63, 1994 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-7801148

RESUMO

Hematopoietic growth factors, such as granulocyte-macrophage colony-stimulating factor (GM-CSF), may gain increasing importance in the treatment of patients with malignant germ cell tumors. For patients with far advanced testicular cancer, who only have a chance of long-term cure in the range of 40% to 50% by standard induction chemotherapy, the German Testicular Cancer Study Group has shown that the application of GM-CSF after PEI chemotherapy has allowed the increase of dose intensity of this three-drug regimen by a factor of 1.4. In 75 evaluable patients an overall survival rate of 79% after a median follow-up of 27 months was achieved. The dose-limiting toxicity of this stepwise dose escalation protocol of the PEI regimen was severe mucositis/enteritis (World Health Organization [WHO] degrees 3/degrees 4) in 33% of the patients and prolonged thrombocytopenia (< 20,000/microL for more than 10 days). In future trials, hematopoietic growth factors will be used in the treatment of far-advanced testicular cancer to generate peripheral blood stem cells (PBSC) that can be used to overcome both granulocytopenia and thrombocytopenia. This approach with the use of PBSC and hematopoietic growth factors will allow us to apply multiple cycles of up-front dose-intensified PEI chemotherapy in this unfavorable subgroup of patients. However, with the establishment of an optimal hematopoietic support in these studies, the value of dose-intensified chemotherapy in advanced testicular cancer will have to be tested against standard dose regimens in prospective randomized trials.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Germinoma/tratamento farmacológico , Fator Estimulador de Colônias de Granulócitos e Macrófagos/uso terapêutico , Neoplasias Testiculares/tratamento farmacológico , Remoção de Componentes Sanguíneos , Quimioterapia Adjuvante , Cisplatino/administração & dosagem , Ensaios Clínicos como Assunto , Relação Dose-Resposta a Droga , Etoposídeo/administração & dosagem , Germinoma/terapia , Transplante de Células-Tronco Hematopoéticas , Humanos , Ifosfamida/administração & dosagem , Masculino , Proteínas Recombinantes/uso terapêutico , Neoplasias Testiculares/terapia
19.
Semin Oncol ; 25(2 Suppl 4): 24-32; discussion 45-8, 1998 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-9578059

RESUMO

With the use of a cisplatin-based chemotherapy, metastatic testicular cancer has become a model for a highly curable malignant disease. Current data show that 70% to 80% of patients with this disease will achieve long-term survival following cisplatin/etoposide/bleomycin therapy. The role of high-dose chemotherapy with autologous stem cell support is being investigated in metastatic germ cell cancer in attempts to improve outcome for patients whose disease relapses after standard-dose chemotherapy and for those who present initially with advanced metastatic disease. Prognostic categories for patients receiving high-dose salvage chemotherapy have recently been developed: cisplatin-refractory disease, beta-human chorionic gonadotropin values greater than 1,000 U/L, and primary mediastinal germ cell tumors are factors characterizing patients who will derive less benefit from high-dose chemotherapy than those with chemosensitive disease at relapse. While standard-dose salvage chemotherapy achieves only a 20% long-term survival rate, high-dose salvage chemotherapy may yield a cure rate of approximately 40%. A randomized study comparing high-dose therapy with conventional-dose therapy (IT94 coordinated by the European Group for Blood and Marrow Transplantation) in patients with relapsed disease is ongoing to substantiate this observation. The use of dose-intensive therapy as first-line treatment is currently being studied by several institutions. High-dose therapy may be better tolerated when used first line compared with its use in the salvage situation, and may also achieve a rapid initial cell kill before cytostatic drug resistance develops. The German Testicular Cancer Study Group has developed a sequential high-dose combination regimen of cisplatin/etoposide/ifosfamide given with granulocyte colony-stimulating factor and peripheral blood stem cell support for four cycles every 3 weeks. This ongoing study, started in 1990, had accrued 218 patients with advanced testicular germ cell tumors as of June 1997. Of 141 evaluable patients receiving dose levels 1 through 5, 82 (58%) have achieved complete remission with no evidence of disease and 32 (23%) have achieved partial remission with marker normalization. The early death rate was 8%. Overall and event-free survival rates at 2 years are 78% and 73%, respectively, with a projected 5-year overall survival rate of 74%. Despite favorable preliminary results, this approach cannot be considered standard treatment. Currently, high-dose chemotherapy with peripheral blood stem cell transplantation should be administered to patients with testicular cancer only within controlled clinical trials to allow long-term cure rates and treatment-related late side effects to be evaluated.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Germinoma/tratamento farmacológico , Germinoma/secundário , Fator Estimulador de Colônias de Granulócitos/uso terapêutico , Transplante de Células-Tronco Hematopoéticas , Neoplasias Testiculares/tratamento farmacológico , Ensaios Clínicos como Assunto , Germinoma/terapia , Humanos , Masculino , Prognóstico , Terapia de Salvação , Taxa de Sobrevida , Neoplasias Testiculares/terapia
20.
Thromb Haemost ; 75(6): 902-7, 1996 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-8822584

RESUMO

Variables of the fibrinolytic system were prospectively studied in patients with haematologic malignancies in chemotherapy-induced leukocytopenia at onset and during the course of septicemia to evaluate their prognostic value. This group of patients was chosen because of their high risk of developing severe septic complications, thus allowing serial prospective testing of fibrinolytic variables prior to and during evolving sepsis or septic shock. 62 patients with febrile infectious events were accrued to the study. Of these, 13 patients progressed to severe sepsis and an additional 13 patients to septic shock as defined according to standard diagnostic criteria. At onset of fever, plasminogen activator inhibitor (PAI) activity and PAI-1 antigen levels increased from normal baseline levels and were significantly higher in the group of patients who developed septic shock compared to those with severe sepsis (medians: 10.6 versus 1.3 U/ml, p = 0.0001; 50.0 versus 5.0 ng/ml, p = 0.0002). The increase in PAI activity and antigen in septic shock was accompanied by an increase in tissue-type plasminogen activator antigen and total fibrin(ogen) degradation products and a decrease in alpha(2)-antiplasmin activity (p < 0.006). In contrast, in the group of patients that developed severe sepsis the variables of the fibrinolytic system remained unchanged at onset of fever. These differences between septic shock and severe sepsis were sustained throughout the septic episode for all variables (p < 0.0001). PAI activity of > 5 U/ml at onset of fever predicted a lethal outcome with a sensitivity of 92% and a specificity of 100%. Thus, septic shock in leukocytopenia is associated with significant activation of the fibrinolytic system presumably as a response of the vascular endothelium to inflammatory injury. Furthermore, PAI activity measurements are sensitive markers of an unfavourable prognosis.


Assuntos
Leucopenia/complicações , Neoplasias/complicações , Inativadores de Plasminogênio/sangue , Sepse/sangue , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Biomarcadores , Humanos , Leucopenia/sangue , Pessoa de Meia-Idade , Neoplasias/sangue , Neoplasias/tratamento farmacológico , Inibidor 1 de Ativador de Plasminogênio/sangue , Valor Preditivo dos Testes , Prognóstico , Sepse/etiologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA