Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 30
Filtrar
1.
Clin Infect Dis ; 60(6): 868-74, 2015 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-25422387

RESUMO

BACKGROUND: Data regarding the prevalence and clinical significance of asymptomatic bacteriuria (AB) in women with autoimmune rheumatic disease (ARD) are scarce. METHODS: In this prospective, case-control study, consecutive female outpatients with ARD were screened for AB. For each patient, demographics, type, duration, and treatment of underlying ARD, and risk factors for urinary tract infection (UTI), were recorded. Age-matched women with endocrine disease, without any autoimmune disease, not receiving immunosuppressive agents were used as controls. Subjects were followed up for 1 year for the development of symptomatic UTI. RESULTS: Two hundred sixty patients with ARD (mean age, 52.4 [standard deviation {SD}, 14.6] years) and 238 controls (mean age, 51.2 [SD, 16.5] years) were enrolled. The majority of patients with ARD (93.5%; 95% confidence interval [CI], 89.7%-95.9%) were receiving immunosuppressive agents. AB was detected in 24 patients with ARD (9.2%; 95% CI, 6.2%-13.4%) and in 22 controls (9.2%; 95% CI, 5.5%-12.9%) (P = 1.000). The most prevalent pathogen was Escherichia coli (16/24 [66%]). Independent predictors for AB among patients were diabetes (odds ratio [OR], 6.6; P = .008) and a longer ARD duration (>84 months; OR, 4.3; P = .018). During the 1-year follow-up, 9 patients with baseline AB remained persistently bacteriuric, whereas 11 were intermittently bacteriuric. Symptomatic UTI developed in 4 of 24 patients (16.7%; 95% CI, 6.1%-36.5%) with baseline AB vs 29 of 236 (12.3%; 95% CI, 8.6%-17.1%) without AB (P = .522). CONCLUSIONS: In our study, the prevalence of AB among women with ARD was not higher than that of controls, and AB was not associated with higher risk for symptomatic UTI. Risk factors for AB were longer duration of ARD and diabetes.


Assuntos
Infecções Assintomáticas/epidemiologia , Doenças Autoimunes/complicações , Bacteriúria/epidemiologia , Hospedeiro Imunocomprometido , Doenças Reumáticas/complicações , Infecções Urinárias/microbiologia , Adulto , Idoso , Bacteriúria/complicações , Bacteriúria/microbiologia , Estudos de Casos e Controles , Escherichia coli/isolamento & purificação , Feminino , Seguimentos , Humanos , Imunossupressores/uso terapêutico , Pessoa de Meia-Idade , Gravidez , Gravidez em Diabéticas , Prevalência , Estudos Prospectivos , Fatores de Risco , Infecções Urinárias/complicações
2.
Antimicrob Agents Chemother ; 58(4): 2322-8, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24514083

RESUMO

Carbapenemase-producing Klebsiella pneumoniae strains (CP-Kps) are currently among the most important nosocomial pathogens. An observational study was conducted during 2009 to 2010 in two hospitals located in a high-prevalence area (Athens, Greece). The aims were (i) to evaluate the clinical outcome of patients with CP-Kp bloodstream infections (BSIs), (ii) to identify predictors of mortality, and (iii) to evaluate the various antibiotic schemes employed. A total of 205 patients with CP-Kp BSIs were identified: 163 (79.5%) were infected with KPC or KPC and VIM, and 42 were infected with VIM producers. For definitive treatment, 103 patients received combination therapy (two or more active drugs), 72 received monotherapy (one active drug), and 12 received therapy with no active drug. The remaining 18 patients died within 48 h after the onset of bacteremia. The all-cause 28-day mortality was 40%. A significantly higher mortality rate was observed in patients treated with monotherapy than in those treated with combination therapy (44.4% versus 27.2%; P=0.018). The lowest mortality rate (19.3%) was observed in patients treated with carbapenem-containing combinations. In the Cox proportion hazards model, ultimately fatal disease (hazards ratio [HR], 3.25; 95% confidence interval [CI], 1.51 to 7.03; P=0.003), the presence of rapidly fatal underlying diseases (HR, 4.20; 95% CI, 2.19 to 8.08; P<0.001), and septic shock (HR, 2.15; 95% CI, 1.16 to 3.96; P=0.015) were independent predictors of death. Combination therapy was strongly associated with survival (HR of death for monotherapy versus combination, 2.08; 95% CI, 1.23 to 3.51; P=0.006), mostly due to the effectiveness of the carbapenem-containing regimens.


Assuntos
Proteínas de Bactérias/metabolismo , Carbapenêmicos/farmacologia , Carbapenêmicos/uso terapêutico , Infecções por Klebsiella/sangue , Infecções por Klebsiella/tratamento farmacológico , Klebsiella pneumoniae/efeitos dos fármacos , beta-Lactamases/metabolismo , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Feminino , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Adulto Jovem
3.
Mycoses ; 57(1): 49-55, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23905713

RESUMO

Pulmonary mucormycosis (PM) is a life-threatening opportunistic mycosis with a variable clinical evolution and few prognostic markers for outcome assessment. Several clinical risk factors for poor outcome present at the diagnosis of PM were analyzed in 75 consecutive hematology patients from 2000-2012. Significant variables (P < 0.1) were entered into a multivariate Cox-proportional hazard regression model adjusting for baseline APACHE II to identify independent risk factors for mortality within 28 days. Twenty-eight of 75 patients died within 4-week follow up. A lymphocyte count < 100/mm³ at the time of diagnosis (adjusted hazard ratio 4.0, 1.7-9.4, P = 0.01) and high level of lactate dehydrogenase (AHR 3.7, 1.3-10.2, P = 0.015) were independent predictors along with APACHE II score for 28-day mortality. A weighted risk score based on these 3 baseline variables accurately identified non-surviving patients at 28 days (area under the receiver-operator curve of 0.87, 0.77-0.93, P < 0.001). A risk score > 22 was associated with 8-fold high rates of mortality (P < 0.0001) within 28 days of diagnosis and median survival of 7 days versus ≥28 days in patients with risk scores ≤22. We found that APACHE II score, severe lymphocytopenia and high LDH levels at the time of PM diagnosis were independent markers for rapid disease progression and death.


Assuntos
Neoplasias Hematológicas/mortalidade , Pneumopatias Fúngicas/mortalidade , Mucormicose/mortalidade , Adolescente , Adulto , Idoso , Feminino , Seguimentos , Neoplasias Hematológicas/complicações , Neoplasias Hematológicas/epidemiologia , Neoplasias Hematológicas/microbiologia , Humanos , Pneumopatias Fúngicas/complicações , Pneumopatias Fúngicas/epidemiologia , Pneumopatias Fúngicas/microbiologia , Masculino , Pessoa de Meia-Idade , Mucormicose/complicações , Mucormicose/epidemiologia , Mucormicose/microbiologia , Prognóstico , Fatores de Risco , Adulto Jovem
4.
Eur J Intern Med ; 123: 127-131, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38281818

RESUMO

BACKGROUND & AIMS: During the pandemic, steroids use at various dosages and durations for the treatment of COVID-19 patients, especially in hospitalized patients, was a common and effective strategy. However, steroid administration is associated with osteonecrosis as an adverse event. The aim of the study was to examine the prevalence of skeleton osteonecrosis in COVID-19 patients treated with or without steroids. METHODS: Eighty randomly selected hospitalized COVID-19 patients were analyzed, of which 40 were managed with a published protocol including steroids and 40 did not receive steroids. Demographics and laboratory measurements including white blood cells count, C-reactive protein and ferritin were retrieved from the medical records. All patients underwent magnetic resonance imaging of the hips, shoulders, and knees. Subsequently, all patients were clinically examined and Oxford hip score (OHS) and EuroQol- 5 Dimension (EQ-5D-5 L) were documented. RESULTS: Three patients (3/40; 7.5 %) treated with steroids were diagnosed with femoral head osteonecrosis. None of the patients in the non-steroid-treated group developed osteonecrosis. There were no differences between the two groups regarding OHS and EQ-5D-5 L. Patients with osteonecrosis had higher ferritin levels, received higher doses of corticosteroids (median dose 2200 mg), and had longer hospitalization. CONCLUSIONS: COVID-19-related therapy with steroids resulted in lower prevalence of osteonecrosis than that previously recorded in patients with severe acute respiratory syndrome caused by coronavirus-type-1. However, this risk seems not negligible and therefore, high clinical suspicion for early diagnosis is warranted, given the fact that a great proportion of hospitalized patients received steroids during the COVID-19 pandemic.


Assuntos
Tratamento Farmacológico da COVID-19 , COVID-19 , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , COVID-19/complicações , COVID-19/epidemiologia , Estudos Transversais , Idoso , SARS-CoV-2 , Osteonecrose/induzido quimicamente , Osteonecrose/epidemiologia , Osteonecrose/diagnóstico por imagem , Glucocorticoides/efeitos adversos , Glucocorticoides/uso terapêutico , Glucocorticoides/administração & dosagem , Imageamento por Ressonância Magnética , Necrose da Cabeça do Fêmur/induzido quimicamente , Necrose da Cabeça do Fêmur/epidemiologia , Prevalência
5.
Eur J Intern Med ; 122: 78-85, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37953124

RESUMO

BACKGROUND & AIMS: Calprotectin reflects neutrophil activation and is increased in various inflammatory conditions including severe COVID-19. However, serial serum calprotectin measurements in COVID-19 patients are limited. We assessed prospectively, calprotectin levels as biomarker of severity/outcome of the disease and a COVID-19 monitoring parameter in a large cohort of consecutive COVID-19 patients. METHODS: Calprotectin serum levels were measured in 736 patients (58.2 % males; median age 63-years; moderate disease, n = 292; severe, n = 444, intubated and/or died, n = 50). Patients were treated with combined immunotherapies according to our published local algorithm. The endpoint was the composite event of intubation due to severe respiratory failure (SRF)/COVID-19-related mortality. RESULTS: Median (interquartile range) calprotectin levels were significantly higher in patients with severe disease [7(8.2) vs. 6.1(8.1)µg/mL, p = 0.015]. Calprotectin on admission was the only independent risk factor for intubation/death (HR=1.473, 95 %CI=1.003-2.165, p = 0.048) even after adjustment for age, sex, body mass index, comorbidities, neutrophils, lymphocytes, neutrophil to lymphocytes ratio, ferritin, and CRP. The area under the curve (AUC, 95 %CI) of calprotectin for prediction of intubation/death was 0.619 (0.531-0.708), with an optimal cut-off at 13 µg/mL (sensitivity: 44 %, specificity: 79 %, positive and negative predictive values: 13 % and 95 %, respectively). For intubated/died patients, paired comparisons from baseline to middle of hospitalization and subsequently to intubation/death showed significant increase of calprotectin (p = 0.009 and p < 0.001, respectively). Calprotectin alteration had the higher predictive ability for intubation/death [AUC (95 %CI):0.803 (0.664-0.943), p < 0.001]. CONCLUSIONS: Calprotectin levels on admission and their subsequent dynamic alterations could serve as indicator of COVID-19 severity and predict the occurrence of SRF and mortality.


Assuntos
COVID-19 , Complexo Antígeno L1 Leucocitário , Masculino , Humanos , Pessoa de Meia-Idade , Feminino , Estudos Prospectivos , Seguimentos , COVID-19/terapia , Biomarcadores , Estudos Retrospectivos
6.
Mycoses ; 56(3): 311-4, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-23170870

RESUMO

There is scarcity of data regarding significance of candiduria in patients with haematologic malignancies and its association with invasive candidiasis. To that end, we retrospectively evaluated all hospitalised, non-intensive care unit patients with haematologic malignancies and candiduria during a 10-year period (2001-2011). To decrease the possibility of bladder colonisation and sample contamination, we excluded all patients with candiduria who had urinary catheters and those with concomitant bacteriuria. Twenty-four such patients (21 females) were identified, with median age at diagnosis 62 years (range, 20-82 years). Acute leukaemia was the most common underlying disease (54%); 62% of these cases were not in remission. Twenty-nine percent of the patients had diabetes mellitus and 25% were neutropenic. The most common isolated Candida species was Candida glabrata (37%), followed by C. albicans (29%). Only 8% of them had urinary tract infection symptoms. However, 88% received systemic antifungals. Candidemia and crude mortality rates at 4 weeks were low (4% and 12% respectively). Isolated candiduria in patients with haematologic malignancies has risk factors similar to those in other hospitalised patients, and it does not seem to be a strong predictor of subsequent invasive candidiasis.


Assuntos
Antifúngicos/uso terapêutico , Candidíase Invasiva/patologia , Neoplasias Hematológicas/microbiologia , Leucemia Mieloide Aguda/patologia , Cateteres Urinários , Adulto , Idoso , Idoso de 80 Anos ou mais , Candida glabrata/isolamento & purificação , Candidíase Invasiva/tratamento farmacológico , Diabetes Mellitus/patologia , Feminino , Neoplasias Hematológicas/patologia , Humanos , Pessoa de Meia-Idade , Neutropenia/patologia , Piúria/diagnóstico , Piúria/microbiologia , Estudos Retrospectivos , Fatores de Risco , Infecções Urinárias/microbiologia , Infecções Urinárias/urina , Adulto Jovem
7.
Viruses ; 15(11)2023 Nov 08.
Artigo em Inglês | MEDLINE | ID: mdl-38005902

RESUMO

This longitudinal, case-control study aimed to investigate the role of thrombopoietin (TPO) and anti-TPO antibodies in HIV-associated thrombocytopenia, focusing on the changes seen before and after the initiation of highly active antiretroviral therapy (HAART). Patients were assessed before and at least six months after the initiation of HAART. In total, 75 PLWHIV (age/sex-matched and randomized at 2:1, according to thrombocytopenia status) were included in this study. The baseline assessment revealed significantly higher TPO levels in thrombocytopenic patients (140.45 vs. 106.8 mg/mL, p = 0.008). Furthermore, anti-TPO-positive patients displayed lower platelet counts (109,000 vs. 139,000/L, p = 0.002) and TPO levels (114.7 vs. 142.7 mg/mL, p = 0.047). Longitudinally, HAART initiation reduced the frequency of thrombocytopenia from 75.47% to 33.96% (p < 0.001) and elevated the median platelet counts from 131,000 to 199,000 (p < 0.001). No significant difference in median platelet counts was found post-HAART among the anti-TPO subgroups (p = 0.338), a result contrasting with pre-HAART findings (p = 0.043). Changes in anti-TPO status corresponded with significant platelet count alterations (p = 0.036). Notably, patients who became anti-TPO negative showed a median increase of 95,000 platelets (IQR: 43,750-199,500). These marked differences between subgroups underscore the potential role of anti-TPO antibodies in modulating the hematological response to HAART. Further research is needed to elucidate the complex interplay between HIV infection, HAART, and thrombocytopenia.


Assuntos
Infecções por HIV , Trombocitopenia , Humanos , Terapia Antirretroviral de Alta Atividade , Estudos de Casos e Controles , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Estudos Longitudinais , Trombocitopenia/etiologia
8.
BMC Infect Dis ; 12: 167, 2012 Jul 30.
Artigo em Inglês | MEDLINE | ID: mdl-22846182

RESUMO

BACKGROUND: Our aim was to investigate the aortic distensibility (AD) of the ascending aorta and carotid artery intima-media thickness (c-IMT) in HIV-infected patients compared to healthy controls. METHODS: One hundred and five HIV-infected patients (86 males [82%], mean age 41 ± 0.92 years), and 124 age and sex matched HIV-1 uninfected controls (104 males [84%], mean age 39.2 ± 1.03 years) were evaluated by high-resolution ultrasonography to determine AD and c-IMT. For all patients and controls clinical and laboratory factors associated with atherosclerosis were recorded. RESULTS: HIV- infected patients had reduced AD compared to controls: 2.2 ± 0.01 vs. 2.62 ± 0.01 10(-6) cm(2) dyn(-1), respectively (p < 0.001). No difference was found in c-IMT between the two groups. In multiadjusted analysis, HIV infection was independently associated with decreased distensibility (beta -0.45, p < 0.001). Analysis among HIV-infected patients showed that patients exposed to HAART had decreased AD compared to HAART-naïve patients [mean (SD): 2.18(0.02) vs. 2.28(0.03) 10(-6) cm(2) dyn(-1), p = 0.01]. In multiadjusted analysis, increasing age and exposure to HAART were independently associated with decreased AD. CONCLUSION: HIV infection is independently associated with decreased distensibility of the ascending aorta, a marker of subclinical atherosclerosis. Increasing age and duration of exposure to HAART are factors further contributing to decreased AD.


Assuntos
Aorta/patologia , Aterosclerose/epidemiologia , Aterosclerose/patologia , Artérias Carótidas/patologia , Infecções por HIV/complicações , Infecções por HIV/patologia , Adulto , Aorta/diagnóstico por imagem , Artérias Carótidas/diagnóstico por imagem , Estudos de Casos e Controles , Feminino , Infecções por HIV/virologia , HIV-1/isolamento & purificação , Humanos , Masculino , Ultrassonografia
9.
Viruses ; 14(4)2022 04 10.
Artigo em Inglês | MEDLINE | ID: mdl-35458517

RESUMO

Risk stratification of coronavirus disease-19 (COVID-19) patients by simple markers is critical to guide treatment. We studied the predictive value of soluble interleukin-2 receptor (sIL-2R) for the early identification of patients at risk of developing severe clinical outcomes. sIL-2R levels were measured in 197 patients (60.9% males; median age 61 years; moderate disease, n = 65; severe, n = 132, intubated and/or died, n = 42). All patients received combined immunotherapies (anakinra ± corticosteroids ± intravenous immunoglobulin ± tocilizumab) according to our local treatment algorithm. The endpoint was the composite event of intubation due to severe respiratory failure (SRF) or mortality. Median (interquartile range) sIL-2R levels were significantly higher in patients with severe disease, compared with those with moderate disease (6 (6.2) vs. 5.2 (3.4) ng/mL, p = 0.017). sIL-2R was the strongest laboratory predictive factor for intubation/death (hazard ratio 1.749, 95%CI 1.041-2.939, p = 0.035) after adjustment for other known risk factors. Youden's index revealed optimal sIL-2R cut-off for predicting intubation/death at 9 ng/mL (sensitivity: 67%; specificity: 86%; positive and negative predictive value: 57% and 91%, respectively). Delta sIL-2R between the day of event or discharge minus admission date was higher in patients that intubated/died than in those who did not experience an event (2.91 (10.42) vs. 0.44 (2.88) ng/mL; p = 0.08)). sIL-2R on admission and its dynamic changes during follow-up may reflect disease severity and predict the development of SRF and mortality.


Assuntos
COVID-19 , Receptores de Interleucina-2 , Insuficiência Respiratória , Biomarcadores , COVID-19/metabolismo , COVID-19/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Receptores de Interleucina-2/sangue , Receptores de Interleucina-2/metabolismo , Insuficiência Respiratória/diagnóstico , Insuficiência Respiratória/metabolismo
10.
Clin Infect Dis ; 52(9): 1144-55, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21467021

RESUMO

The halo sign is a CT finding of ground-glass opacity surrounding a pulmonary nodule or mass. The reversed halo sign is a focal rounded area of ground-glass opacity surrounded by a crescent or complete ring of consolidation. In severely immunocompromised patients, these signs are highly suggestive of early infection by an angioinvasive fungus. The halo sign and reversed halo sign are most commonly associated with invasive pulmonary aspergillosis and pulmonary mucormycosis, respectively. Many other infections and noninfectious conditions, such as neoplastic and inflammatory processes, may also manifest with pulmonary nodules associated with either sign. Although nonspecific, both signs can be useful for preemptive initiation of antifungal therapy in the appropriate clinical setting. This review aims to evaluate the diagnostic value of the halo sign and reversed halo sign in immunocompromised hosts and describes the wide spectrum of diseases associated with them.


Assuntos
Hospedeiro Imunocomprometido , Aspergilose Pulmonar Invasiva/diagnóstico por imagem , Pneumopatias Fúngicas/diagnóstico por imagem , Mucormicose/diagnóstico por imagem , Adulto , Humanos , Infecções/diagnóstico por imagem , Aspergilose Pulmonar Invasiva/patologia , Pulmão/diagnóstico por imagem , Pulmão/patologia , Pneumopatias Fúngicas/patologia , Masculino , Mucormicose/patologia , Neoplasias/diagnóstico por imagem , Nódulo Pulmonar Solitário/diagnóstico por imagem , Tomografia Computadorizada por Raios X
11.
Eur J Intern Med ; 88: 52-62, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33820686

RESUMO

Aims Infection by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) may lead to the development of severe respiratory failure. In hospitalized-patients, prompt interruption of the virus-driven inflammatory process by using combination treatments seems theoretically of outmost importance. Our aim was to investigate the hypothesis of multifaceted management of these patients. Methods A treatment algorithm based on ferritin was applied in 311 patients (67.2% males; median age 63-years; moderate disease, n=101; severe, n=210). Patients with ferritin <500ng/ml received anakinra 2-4mg/kg/day ± corticosteroids (Arm A, n=142) while those with ≥500ng/ml received anakinra 5-8mg/kg/day with corticosteroids and γ-globulins (Arm B, n=169). In case of no improvement a single dose of tocilizumab (8mg/kg; maximum 800mg) was administered with the potential of additional second and/or third pulses. Treatment endpoints were the rate of the development of respiratory failure necessitating intubation and the SARS-CoV-2-related mortality. The proposed algorithm was also validated in matched hospitalized-patients treated with standard-of-care during the same period. Results In overall, intubation and mortality rates were 5.8% and 5.1% (0% in moderate; 8.6% and 7.6% in severe). Low baseline pO2/FiO2 and older age were independent risk factors. Comparators had significantly higher intubation (HR=7.4; 95%CI: 4.1-13.4; p<0.001) and death rates (HR=4.5, 95%CI: 2.1-9.4, p<0.001). Significant adverse events were rare, including severe secondary infections in only 7/311 (2.3%). Conclusions Early administration of personalized combinations of immunomodulatory agents may be life-saving in hospitalized-patients with COVID-19. An immediate intervention (the sooner the better) could be helpful to avoid development of full-blown acute respiratory distress syndrome and improve survival.


Assuntos
COVID-19 , Síndrome do Desconforto Respiratório , Insuficiência Respiratória , Idoso , Feminino , Humanos , Proteína Antagonista do Receptor de Interleucina 1 , Masculino , Pessoa de Meia-Idade , Insuficiência Respiratória/terapia , SARS-CoV-2 , Resultado do Tratamento
12.
Elife ; 102021 03 08.
Artigo em Inglês | MEDLINE | ID: mdl-33682678

RESUMO

Background: It was studied if early suPAR-guided anakinra treatment can prevent severe respiratory failure (SRF) of COVID-19. Methods: A total of 130 patients with suPAR ≥6 ng/ml were assigned to subcutaneous anakinra 100 mg once daily for 10 days. Primary outcome was SRF incidence by day 14 defined as any respiratory ratio below 150 mmHg necessitating mechanical or non-invasive ventilation. Main secondary outcomes were 30-day mortality and inflammatory mediators; 28-day WHO-CPS was explored. Propensity-matched standard-of care comparators were studied. Results: 22.3% with anakinra treatment and 59.2% comparators (hazard ratio, 0.30; 95% CI, 0.20-0.46) progressed into SRF; 30-day mortality was 11.5% and 22.3% respectively (hazard ratio 0.49; 95% CI 0.25-0.97). Anakinra was associated with decrease in circulating interleukin (IL)-6, sCD163 and sIL2-R; IL-10/IL-6 ratio on day 7 was inversely associated with SOFA score; patients were allocated to less severe WHO-CPS strata. Conclusions: Early suPAR-guided anakinra decreased SRF and restored the pro-/anti-inflammatory balance. Funding: This study was funded by the Hellenic Institute for the Study of Sepsis, Technomar Shipping Inc, Swedish Orphan Biovitrum, and the Horizon 2020 Framework Programme. Clinical trial number: NCT04357366.


People infected with the SARS-CoV-2 virus, which causes COVID-19, can develop severe respiratory failure and require a ventilator to keep breathing, but this does not happen to every infected individual. Measuring a blood protein called suPAR (soluble urokinase plasminogen activator receptor) may help identify patients at the greatest risk of developing severe respiratory failure and requiring a ventilator. Previous investigations have suggested that measuring suPAR can identify pneumonia patients at highest risk for developing respiratory failure. The protein can be measured by taking a blood sample, and its levels provide a snapshot of how the body's immune system is reacting to infection, and of how it may respond to treatment. Anakinra is a drug that forms part of a class of medications called interleukin antagonists. It is commonly prescribed alone or in combination with other medications to reduce pain and swelling associated with rheumatoid arthritis. Kyriazopoulou et al. investigated whether treating COVID-19 patients who had developed pneumonia with anakinra could prevent the use of a ventilator and lower the risk of death. The findings show that treating COVID-19 patients with an injection of 100 milligrams of anakinra for ten days may be an effective approach because the drug combats inflammation. Kyriazopoulou et al. examined various markers of the immune response and discovered that anakinra was able to improve immune function, protecting a significant number of patients from going on a ventilator. The drug was also found to be safe and cause no significant adverse side effects. Administering anakinra decreased of the risk of progression into severe respiratory failure by 70%, and reduced death rates significantly. These results suggest that it may be beneficial to use suPAR as an early biomarker for identifying those individuals at highest risk for severe respiratory failure, and then treat them with anakinra. While the findings are promising, they must be validated in larger studies.


Assuntos
Anti-Inflamatórios/administração & dosagem , Tratamento Farmacológico da COVID-19 , Proteína Antagonista do Receptor de Interleucina 1/administração & dosagem , Insuficiência Respiratória/prevenção & controle , Idoso , Idoso de 80 Anos ou mais , Antígenos CD/sangue , Antígenos de Diferenciação Mielomonocítica/sangue , COVID-19/mortalidade , Feminino , Humanos , Incidência , Injeções Subcutâneas , Interleucina-10/sangue , Interleucina-6/sangue , Masculino , Pessoa de Meia-Idade , Receptores de Superfície Celular/sangue , Receptores de Ativador de Plasminogênio Tipo Uroquinase/sangue , Receptores de Ativador de Plasminogênio Tipo Uroquinase/metabolismo , Respiração Artificial , Insuficiência Respiratória/epidemiologia , SARS-CoV-2 , Padrão de Cuidado , Resultado do Tratamento
13.
Liver Int ; 29(3): 434-42, 2009 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-18694399

RESUMO

BACKGROUND: Occult hepatitis B virus (HBV) infection is characterized by undetectable serum HBV surface antigen (HBsAg) but detectable HBV-DNA in serum or liver. AIMS: To determine the prevalence and clinical impact of occult HBV in autoimmune liver diseases as similar data are missing. METHODS: One hundred and ninety-six sera samples from HBsAg-negative patients, including 66 autoimmune hepatitis (AIH), 93 primary biliary cirrhosis (PBC) and 37 primary sclerosing cholangitis (PSC), were investigated for HBV-DNA using the polymerase chain reaction (PCR) before treatment initiation. One hundred and three serial samples from 38 AIH patients under immunosuppression and 282 selected blood donors (HBsAg negative; antibodies to HBV-core antigen positive) were also investigated. Fourteen available paraffin-embedded AIH liver samples were also investigated for HBV-DNA by nested-PCR. RESULTS: Hepatitis B virus DNA was detected in the serum of 24/196 patients (12.2%) and 0/282 donors (P=0.0000). Nine patients had AIH (13.6%), eight had PBC (8.6%) and seven had PSC (18.9%) (P=0.0000 vs healthy). HBV-DNA detection in AIH livers was higher than in serum. HBV-DNA was associated neither with HBV markers nor with epidemiological, laboratory and clinical data. Serial testing of AIH patients revealed two HBV-DNA-negative patients before treatment becoming positive during treatment, while all HBV-DNA-positive patients before immunosuppression became negative. CONCLUSION: Based mainly on serum HBV-DNA, we found a significant proportion of autoimmune liver disease patients with occult HBV compared with donors. However, taking into account our results in a small number of liver tissues, it should be emphasized that occult HBV could be even higher when both serum and liver specimens are investigated. Occult HBV does not seem to affect the clinical and laboratory features of the diseases, while AIH patients with occult HBV under immunosuppression do not deteriorate during follow-up.


Assuntos
DNA Viral/sangue , Hepatite B/epidemiologia , Hepatite Autoimune/virologia , Adolescente , Adulto , Idoso , Análise Química do Sangue , Criança , Colangite Esclerosante/virologia , Feminino , Grécia/epidemiologia , Antígenos de Superfície da Hepatite B/sangue , Humanos , Cirrose Hepática Biliar/virologia , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase , Prevalência
14.
World J Clin Cases ; 7(21): 3394-3406, 2019 Nov 06.
Artigo em Inglês | MEDLINE | ID: mdl-31750324

RESUMO

BACKGROUND: Secondary haemophagocytic lymphohistiocytosis (sHLH) is a rare life-threatening condition mainly associated with underlying infections, malignancies, and autoimmune or immune-mediated diseases. AIM: To analyse all sHLH cases that were diagnosed and managed under real-world circumstances in our department focusing on the treatment schedule and the outcome. METHODS: Prospectively collected data from all adult patients fulfilling the criteria of sHLH who diagnosed and managed from January 1, 2010 to June 1, 2018, in our department of the tertiary care university hospital of Larissa, Greece, were analysed retrospectively (n = 80; 52% male; median age: 55 years). The electronic records and/or written charts of the patients were reviewed for the demographic characteristics, clinical manifestations, underlying causes of sHLH, laboratory parameters, treatment schedule and 30-d-mortality rate. Most of patients had received after consent intravenous γ-immunoglobulin (IVIG) for 5 d (total dose 2 g/kg) in combination with intravenous steroid pulses followed by gradual tapering of prednisolone. RESULTS: Seventy-five patients (94%) reported fever > 38.5 °C, 47 (59%) had liver or spleen enlargement and 76 (95%) had ferritin > 500 ng/mL including 20 (25%) having considerably high levels (> 10000 ng/mL). Anaemia and thrombocytopenia occurred in 72% and leucopoenia in 47% of them. Underlying infections were diagnosed in 59 patients (74%) as follows: leishmaniasis alone in 15/80 (18.9%), leishmaniasis concurrently with Coxiella Burnetti or non-Hodgkin lymphoma in 2/80 (2.5%), bacterial infections in 14/80 (17.5%) including one case with concurrent non-Hodgkin lymphoma, viral infections in 13/80 (16.3%), fungal infections in 2/80 (2.5%), infections by mycobacteria in 1/80 (1.3%) and unidentified pathogens in 12/80 (15%). Seventy-two patients (90%) had received combination treatment with IVIG and intravenous steroids. Overall, sHLH resolved in 76% of patients, 15% died within the first month but 82.5% of patients were still alive 6 mo after diagnosis. Univariate analysis showed older age, anaemia, thrombocytopenia, low fibrinogen, disseminated intravascular coagulation (DIC), and delay of diagnosis as factors that negatively affected remission. However, multivariate analysis showed low platelets and DIC as the only independent predictors of adverse outcome. CONCLUSION: sHLH still carries a remarkable morbidity and mortality. Underlying infections were the major cause and therefore, they should be thoroughly investigated in patients with sHLH. Early recognition and combination treatment with IVIG and corticosteroids seem an efficient treatment option with successful outcome in this life-threatening condition.

15.
BMJ Case Rep ; 20182018 May 30.
Artigo em Inglês | MEDLINE | ID: mdl-29848535

RESUMO

Austrian syndrome is a rare medical condition characterised by the triad of pneumonia, meningitis and endocarditis due to Streptococcus pneumoniae Native aortic valve insufficiency is the most common cause of cardiac failure in these patients, requiring valve replacement. We report a 52-year-old chronic alcoholic man who presented with fever, neck rigidity and loss of consciousness. Lumbar puncture revealed central nervous system infection while chest X-ray showed pneumonia. Blood and cerebrospinal fluid cultures revealed S. pneumonia Transoesophageal echocardiography revealed aortic endocarditis with severe valve insufficiency. The patient underwent aortic valve replacement and was finally discharged after completion of 6 weeks intravenous antibiotic treatment. Nowadays, Austrian syndrome is seen infrequently in the antibiotic era. However, clinicians should be aware of this syndrome as its early recognition and prompt combined medical and surgical treatment could reduce morbidity and mortality due to this potentially catastrophic clinical entity.


Assuntos
Alcoolismo/complicações , Endocardite Bacteriana/complicações , Meningites Bacterianas/complicações , Infecções Pneumocócicas/complicações , Pneumonia Pneumocócica/complicações , Inconsciência/microbiologia , Insuficiência da Valva Aórtica/complicações , Doença Crônica , Febre/microbiologia , Implante de Prótese de Valva Cardíaca , Humanos , Masculino , Pessoa de Meia-Idade , Streptococcus pneumoniae , Síndrome
16.
World J Gastroenterol ; 12(2): 336-9, 2006 Jan 14.
Artigo em Inglês | MEDLINE | ID: mdl-16482641

RESUMO

Hepatopulmonary syndrome (HPS) is defined as a clinical triad including liver disease, abnormal pulmonary gas exchange and evidence of intrapulmonary vascular dilatations. We report a 61-year-old male presented with fatigue, long-lasting fever, loss of weight, signs of portal hypertension, hepatosplenomegaly, cholestasis and progressive dyspnoea over the last year. Clinical, laboratory and histological findings confirmed the diagnosis of granulomatous hepatitis. HPS due to hepatic granuloma-induced portal hypertension was proved to be the cause of severe hypoxemia of the patient as confirmed by contrast-enhanced echocardiography. Reversion of HPS after corticosteroid therapy was confirmed by a new contrast-enhanced echocardiography along with the normalization of cholestatic enzymes and improvement of the patient's conditions. This is the first case of complete reversion of HPS in a non-cirrhotic patient with hepatic granuloma, indicating that intrapulmonary shunt in liver diseases is a functional phenomenon and HPS can be developed even in miscellaneous liver involvement as in this case.


Assuntos
Granuloma/tratamento farmacológico , Hepatite/tratamento farmacológico , Síndrome Hepatopulmonar/tratamento farmacológico , Metilprednisolona/uso terapêutico , Ecocardiografia , Granuloma/complicações , Hepatite/complicações , Síndrome Hepatopulmonar/diagnóstico por imagem , Síndrome Hepatopulmonar/etiologia , Humanos , Masculino , Pessoa de Meia-Idade
17.
Eur J Gastroenterol Hepatol ; 17(9): 911-5, 2005 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16093867

RESUMO

OBJECTIVE: No study has investigated the intrafamilial spread of hepatitis B virus (HBV) in Greece. We conducted a 9-year prospective study to determine the rate of HBV spread in family members when a member is identified as an HBV carrier, the possible routes and risk factors for transmission of HBV and the family members with the highest risk of infection according to kinship degrees. METHODS: A total of 387 family members of 166 hepatitis B surface antigen (HBsAg) carriers were investigated for the detection of HBV infection markers using standard enzyme immunoassays; 6.696 blood donors from the same area were used as controls. RESULTS: Serological markers of past or current HBV infection were detected significantly more frequently among family members of HBsAg carriers (23.2 and 15.8%, respectively) compared with blood donors (14.1 and 0.85%, respectively). The prevalence of the above markers was higher among siblings, husbands and parents of the carriers. Offspring of the female index cases had higher rates of current or past infection. HBV infection markers were significantly increased in family members who reported common use of syringes (P<0.001), birth in rural areas (P<0.001) and a low level of education (P<0.001). CONCLUSIONS: We demonstrated a high risk of HBV transmission among family members of HBsAg carriers, which was associated with special risk factors for contracting HBV. Our findings indicate the need for strict adherence to the universal guidelines of vaccination against HBV and also the need for an immediate investigation of other potentially infected relatives among family members of HBsAg carriers.


Assuntos
Saúde da Família , Hepatite B/transmissão , Adolescente , Adulto , Idoso , Portador Sadio/transmissão , Criança , Pré-Escolar , Transmissão de Doença Infecciosa , Grécia , Antígenos de Superfície da Hepatite B/sangue , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco
18.
World J Gastroenterol ; 11(4): 482-7, 2005 Jan 28.
Artigo em Inglês | MEDLINE | ID: mdl-15641130

RESUMO

AIM: Various side effects have been reported in patients infected with hepatitis C virus (HCV) who were treated with interferon-alpha (IFN-alpha), including the appearance or exacerbation of underlying autoimmune diseases and the development of a variety of organ and non-organ specific autoantibodies (NOSA). However, very few studies in adults have been strictly designed to address: whether the prevalence and the titre of organ and NOSA in serial samples of HCV-treated patients were affected by IFN-alpha, and the impact of these autoantibodies on the treatment outcome of HCV patients. METHODS: We investigated whether parietal cell autoantibodies (PCA) and/or NOSA were related with treatment-outcome in 57 HCV-treated patients (19 sustained-responders, 16 relapsers, 22 non-responders). Serum samples from patients were studied blindly at three time-points (entry, end of treatment and end of followup). For the detection of autoantibodies we used indirect immunofluorescence, commercial and in-house ELISAs. RESULTS: Sustained biochemical response was associated with ANA-negativity at the entry or end of follow up. Sustained virological response was associated with the absence of PCA at the entry. Combined virological and biochemical sustained response (CVBSR) was associated with the absence of antinuclear antibodies (ANA) at the end of follow up and PCA-negativity at the entry. Sustained virological and CVBSR were associated with a reduction of ANA and SMA titers during therapy. CONCLUSION: Although PCA and/or NOSA seropositivity should not affect the decision to treat HCV patients, the presence of some of them such as ANA, PCA and SMA before treatment or their increase during therapy with IFN-alpha may predict a worse response, indicating the need for a closer monitoring during treatment of HCV patients positive for these autoantibodies.


Assuntos
Antivirais/uso terapêutico , Autoanticorpos/sangue , Hepatite C Crônica/tratamento farmacológico , Hepatite C Crônica/imunologia , Interferon-alfa/uso terapêutico , Células Parietais Gástricas/imunologia , Adulto , Especificidade de Anticorpos , Feminino , Hepatite C Crônica/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Estudos Retrospectivos , Estudos Soroepidemiológicos
19.
J Transl Int Med ; 3(2): 43-50, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-27847886

RESUMO

Leishmaniasis is a vector-borne disease caused by protozoan parasites of the genus Leishmania. It is transmitted by phlebotomine female sand flies of the genera Phlebotomus and Lutzomyia in the old and new world, respectively. More than 20 well-recognized Leishmania species are known to infect humans and cause visceral (VL), cutaneous (CL) and mucocutaneous (ML) forms of the disease. Approximately 350 million people are at risk of contracting the disease and an estimated 1.6 million new cases occur annually. The disease mainly affects poor people in Africa, Asia and Latin America, and is associated with malnutrition, population migration, poor residency conditions, frail immune system and lack of resources. Previously, diagnosis of leishmaniasis relied mainly on invasive techniques of detecting parasites in splenic and bone marrow aspirates. Nevertheless, serological tests using the recombinant kinesin antigen (rK39) and molecular methods (polymerase chain reaction) are considered the best options for diagnosis today, despite problems related to varying sensitivities and specificities and field adaptability. Therapy of leishmaniasis ranges from local treatment of cutaneous lesions to systemic often toxic, therapy for disseminated CL, ML and VL. Agents with efficacy against leishmaniasis include amphotericin B, pentavalent antimonial drugs, paromomycin and miltefosine. No single therapy of VL currently offers satisfactory efficacy along with safety. This article provides a brief and updated systematic review on the epidemiology, diagnosis and treatment of this neglected disease.

20.
Int J Infect Dis ; 34: 46-50, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25743761

RESUMO

OBJECTIVES: Visceral leishmaniasis (VL) is re-emerging in endemic areas. The epidemiological, clinical, laboratory, and treatment outcome characteristics in a large cohort of VL patients is described herein. METHODS: The cases of 67 VL patients (57% male, mean age 56 years) treated in two Greek hospitals over the last 7 years were identified and evaluated retrospectively. RESULTS: Forty-six percent of patients reported contact with animals. Seventeen patients (25%) were immunocompromised, and 22% were co-infected with another pathogen. Sixty-four percent of patients had fever, 57% had weakness, 37% had sweats, 21% had weight loss, and 13% had a dry cough, while 6% developed haemophagocytic syndrome. The median duration of symptoms was 28 days. Fifty-eight percent of patients had splenomegaly, 49% had hepatomegaly, and 36% had lymphadenopathy. The diagnosis was established by positive PCR in peripheral blood (73%) and/or bone marrow specimens (34%). Sixty-one patients (91%) received liposomal amphotericin (L-AMB). Six patients (10%) did not respond or relapsed but were eventually cured after a second cycle of L-AMB. During a 6-month follow-up, the overall mortality was 9%, although none of these deaths was attributed to VL. CONCLUSIONS: VL is still a common disease in endemic areas, affecting immunocompetent and immunocompromised patients. Its diagnosis is challenging, and molecular techniques are valuable and helpful tools to achieve this. Treatment with L-AMB is safe and very effective.


Assuntos
Antiprotozoários/uso terapêutico , Doenças Transmissíveis Emergentes/dietoterapia , Doenças Transmissíveis Emergentes/diagnóstico , Doenças Transmissíveis Emergentes/epidemiologia , Leishmaniose Visceral/diagnóstico , Leishmaniose Visceral/tratamento farmacológico , Adolescente , Adulto , Anfotericina B/uso terapêutico , Animais , Medula Óssea , Coinfecção/complicações , Coinfecção/diagnóstico , Coinfecção/tratamento farmacológico , Feminino , Febre/tratamento farmacológico , Grécia/epidemiologia , Hepatomegalia/epidemiologia , Hospitais , Humanos , Hospedeiro Imunocomprometido , Leishmaniose Visceral/epidemiologia , Linfo-Histiocitose Hemofagocítica/epidemiologia , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase , Estudos Retrospectivos , Esplenomegalia/epidemiologia , Resultado do Tratamento , Adulto Jovem
SELEÇÃO DE REFERÊNCIAS
Detalhe da pesquisa