RESUMEN
PURPOSE: In this study we aimed to propose an algorithm for initial anti HCV EIA reactive blood donations in Turkey where nucleic acid amplification tests are not yet obligatory for donor screening. METHODS: A total of 416 anti HCV screening test reactive donor samples collected from 13 blood centers from three cities in Turkey were tested in duplicate by Ortho HCV Ab Version 3.0 and Radim HCV Ab. All the repeat reactive samples were tested by INNO-LIA HCV Ab 3.0 or Chiron RIBA HCV 3.0 and Abbott Real Time HCV. Intra-assay correlations were calculated with Pearson r test. ROC analysis was used to study the relationship between EIA tests and the confirmatory tests. RESULTS: The number of repeat reactive results with Ortho EIA were 221 (53.1%) whereas that of microEIA, 62 (14.9%). Confirmed positivity rate was 14.6% (33/226) by RIBA and 10.6% (24/226) by NAT. Reactive PCR results were predicted with 100% sensitivity and 95% specificity with S/CO levels of 8.1 with Ortho EIA and 3.4 with microEIA. CONCLUSIONS: Repeat reactivity rates declined with a second HCV antibody assay. Samples repeat reactive with one HCV antibody test and negative with the other were all NAT negative. All the NAT reactive samples were RIBA positive. None of the RIBA indeterminate or negative samples were NAT reactive. Considering the threshold values for EIA kits determined by ROC analysis NAT was decided to be performed for the samples above the threshold value and a validated supplemental HCV antibody test for the samples below.
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Selección de Donante/métodos , Hepatitis C/sangre , Técnicas de Amplificación de Ácido Nucleico/métodos , Donantes de Sangre , Humanos , TurquíaRESUMEN
The immunopathogenesis of chronic hepatitis B (CHB) has not been clarified yet. Toll-like receptors (TLR) are a receptor family that initiates immunity with exogenous-endogenous ligands and plays a role in the pathogenesis of infections. In this study, we aimed to investigate the frequency of TLR 3 1377C/T (rs3775290) polymorphism and its role in patients with CHB. We included 50 healthy individuals as control group and 73 active and 43 inactive hepatitis B patients. All DNA samples were isolated from blood samples. For the detection of TLR 3 1377C/T single-nucleotide polymorphism, restriction fragment length polymorphism was used. A statistically significant difference was determined in Hepatitis B virus (HBV) DNA levels of CHB patients with the CC, CT, and TT genotypes (p = 0.013). The highest levels of HBV DNA were detected in individuals with TT genotypes. Additionally, the frequency of CC genotype was higher in the active CHB patients compared with that of the inactive CHB patients (p = 0.044). No statistically significant difference in TLR 3 1377C/T polymorphism was detected between healthy controls and the hepatitis B patients (p = 0.342). In conclusion, HBV DNA level was higher in the individuals with TT genotype, and CC genotype was more frequent in the active CHB patients. These results suggest a possible association between CHB and TLR 3 gene (1377C/T) polymorphism.
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Hepatitis B Crónica/virología , Receptor Toll-Like 3/genética , Adulto , Anciano , Femenino , Virus de la Hepatitis B/inmunología , Humanos , Masculino , Persona de Mediana Edad , Polimorfismo de Longitud del Fragmento de Restricción , Polimorfismo de Nucleótido SimpleRESUMEN
OBJECTIVES: Crimean-Congo hemorrhagic fever (CCHF) has been endemic in Turkey since 2002. Some radiologic findings are considered common by clinicians and radiologists. In this regard, we aimed to assess the sonographic findings in patents with CCHF in a pilot study to obtain basic knowledge for planning further controlled studies. METHODS: An observational descriptive study was planned. Patients with a CCHF diagnosis monitored by the infectious diseases department of a tertiary care hospital were included. Sonographic examinations were conducted by 2 radiologists for each patient, and the findings were recorded. RESULTS: Twenty-five patients with CCHF were included. Hepatomegaly (40%), splenomegaly (28%), paraceliac lymphadenopathy (48%), gallbladder wall thickening (36%), increased echogenicity in the renal parenchyma (40%), and fluid/effusion in the perihepatic, perisplenic, pleural, and hepatorenal recesses of the subhepatic space (Morison pouch) as well as between the intestinal loops (52%) were the primary findings. A decrease in the gallbladder wall thickening and limited resorption of intraperitoneal and pleural effusion were noted during follow-up. CONCLUSIONS: Hepatosplenomegaly, paraceliac lymphadenopathy, and gallbladder wall thickening as well as intraperitoneal and pleural effusion were the primary findings in CCHF, and they became prominent on the third day of the disease in some patients. The relationship between sonographic findings and disease severity will be investigated in an upcoming study.
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Enfermedades de la Vesícula Biliar/diagnóstico por imagen , Fiebre Hemorrágica de Crimea/diagnóstico por imagen , Hepatomegalia/diagnóstico por imagen , Enfermedades Renales/diagnóstico por imagen , Enfermedades Linfáticas/diagnóstico por imagen , Esplenomegalia/diagnóstico por imagen , Ultrasonografía/métodos , Líquido Ascítico/diagnóstico por imagen , Femenino , Humanos , Masculino , Derrame Pleural/diagnóstico por imagen , Reproducibilidad de los Resultados , Sensibilidad y EspecificidadRESUMEN
Vancomycin-resistant enterococci (VRE) are important agents of hospital infections worldwide. Early recognition of VRE colonization is important in the control of hospital infections. The aim of this study was to compare a real-time PCR (Rt-PCR) system and culture methods in the detection of VRE colonization. A total of 210 perirectal swab samples obtained from the patients (142 were in internal and 68 were in surgical intensive care units) hospitalized at Ankara Training and Research Hospital, Turkey between January-September 2013 were included in the study. The samples were simultaneously evaluated with both Rt-PCR (GeneXpert®vanA/vanB, Cepheid, USA) and the culture methods. The samples were cultivated in enterococcosel agar and incubated at 370C for culture. Culture plates were evaluated for three days on a daily basis. Bacterial identification was done by conventional methods and automated Vitek 2.0 system (BioMérieux, France). Antibiotic susceptibility testing was performed by the E-test. VRE was detected in 76 (36.1%) of the samples by the Rt-PCR method; of them 70 were positive for vanA, two for vanB, and four for vanA + vanB. On the other hand, VRE was detected in 71 (33.8%) of the samples by the culture method. Out of 71 samples, colony growth was observed on the first day in 39 cases, on the second day in 29 cases, and on the third day in three cases. The two strains identified as vancomycin-sensitive enterococci by the Vitek 2 Compact system were determined as vanB positive by PCR. These samples were also confirmed as VRE by E-test. The PCR result of a sample which was found to be invalid, also yielded negative result by culture. Five out of the seven culture-negative samples were positive for vanA, and two for vanB by the GeneXpert® system. In our study, the sensitivity, specificity, positive and negative predictive values of the GeneXpert vanA/vanB PCR system were determined as 97.4%, 98.4%, 97.4%, and 97.4%, respectively. Although the GeneXpert® vanA/vanB RT-PCR method seems to be more attractive regarding the turn around time, it has a higher cost than the culture method. Thus, it was concluded that all laboratories should choose the most appropriate method for screening VRE in the hospital setting according to their own capacities.
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Proteínas Bacterianas/genética , Ligasas de Carbono-Oxígeno/genética , Infecciones por Bacterias Grampositivas/microbiología , Reacción en Cadena en Tiempo Real de la Polimerasa , Enterococos Resistentes a la Vancomicina/aislamiento & purificación , Infección Hospitalaria/diagnóstico , Infección Hospitalaria/microbiología , Infecciones por Bacterias Grampositivas/diagnóstico , Humanos , Valor Predictivo de las Pruebas , Recto/microbiología , Sensibilidad y Especificidad , Enterococos Resistentes a la Vancomicina/efectos de los fármacos , Enterococos Resistentes a la Vancomicina/genéticaRESUMEN
Nosocomial infections due to candida species are increasingly gaining importance. In this study, we aimed to determine the risk factors associated with nosocomial candida infections and also to determine the species and antifungal sensitivity of candida strains. Candida spp. strains isolated from the clinical specimens of 92 patients who were hospitalized in Ankara Research and Training Hospital between May 2008 and September 2009 were prospectively included in the study. The demographic features, clinical and laboratory findings of the patients were recorded. Identification and antifungal sensitivities of the candida species were determined by VITEC 2 Compact System (BioMeriéux, France). Invasive candida infection was determined in 79 (85.9%) and candida colonization was found in 13 (14.1%) of the patients. Types of candida infections were as follows; urinary tract infection in 57 (72.1%), candidemia in 26 (32.9%), surgical site infection in 6 (7.5%) and intraabdominal infection in 3 (%3.8) patients. According to the univariate analysis, being female gender, duration and rate of hospitalization in the intensive care unit, use of linezolid, prolonged duration of urinary catheterization and total parenteral nutrition and the duration of central venous catheterization were found significantly higher in the urinary tract infection group. In candidemia group, carbapenem use, rates and periods of central venous catheterization and total parenteral nutrition were detected higher which were statistically significant. In multivariate analysis for urinary tract infections female gender (Odds ratio: 3; 95% CI: 1.25-7.17) and prolonged stay (p= 0.031) in intensive care unit; for candidemia use of total parenteral nutrition (OR: 16.25; 95% CI: 2.07-127.35) were found as independent risk factors. A total of 114 Candida spp. Strains were isolated from the clinical specimens. The most common isolated species were C.albicans (n= 62, 54.4%), C.glabrata (n= 16, 14%) and C.tropicalis (n= 13, 11.4%). While the resistance rates of Candida spp. To fluconazole and flucytosine were 2.6% and 1.7% respectively, there was no resistance to voriconazole. The rate of isolates with amphotericin B MIC values > 1 µg/ml was 4.4%. Consequently, the restricted use of central venous catheter and shortening the length of stay in intensive care unit may prevent the development of invasive candida infections. The local surveillance of antifungal resistance in candida strains might aid to the decision of empirical antifungal therapy.
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Candida/clasificación , Candidemia/epidemiología , Candidiasis/epidemiología , Infección Hospitalaria/epidemiología , Infecciones Urinarias/epidemiología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Antifúngicos/farmacología , Candida/efectos de los fármacos , Candidemia/microbiología , Candidiasis/microbiología , Cateterismo Venoso Central , Infección Hospitalaria/microbiología , Femenino , Humanos , Unidades de Cuidados Intensivos , Tiempo de Internación , Masculino , Persona de Mediana Edad , Nutrición Parenteral Total , Estudios Prospectivos , Factores de Riesgo , Turquía/epidemiología , Cateterismo Urinario , Infecciones Urinarias/microbiología , Adulto JovenRESUMEN
The aim of this study was to evaluate the diagnostic value of serum mannose-binding lectin (MBL) and plasma soluble urokinase plasminogen activator receptor (SuPAR) levels in monitoring the treatment in patients with brucellosis, by comparing their levels before and after treatment with the values obtained from healthy control group. Thirty brucellosis patients (mean age: 25.8 ± 12.2 years; 15 were male) and 28 healthy controls (mean age: 29.3 ± 12.3 years; 15 were male) were included in the study. Patients were diagnosed with brucellosis according to the characteristic clinical findings and by brucella standard tube agglutination test (SAT) titer ≥ 1/160 and/or blood culture positivity. Serum MBL (Antibodyshop, Denmark) and plasma SuPAR (Virogates, Denmark) levels were investigated with commercial ELISA kits. In our study, no statistical significance was observed between the pre-treatment (13.8 ± 13.4 ng/ml) and post-treatment (12.4 ± 13.1 ng/ml) MBL levels of the patient group and MBL levels of the control group (16.5 ± 14.8 ng/ml) (p> 0.05). Moreover, the mean SuPAR levels measured in pre-treatment and post-treatment plasma samples of the brucellosis patients was 5.1 ± 1.9 ng/ml and 2.9 ± 1.3 ng/ml, respectively, while the mean SuPAR level was 1.8 ± 0.5 ng/ml in the control group. The difference between mean SuPAR levels of patients in pre- and post-treatment samples was found statistically significant (p< 0.001). In addition SuPAR levels were significantly higher in patients before and after treatment than the control group (p> 0.001). In conclusion, plasma SuPAR level would be a useful marker for the diagnosis and treatment follow up of the patients with brucellosis.
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Brucelosis/diagnóstico , Lectina de Unión a Manosa/sangre , Receptores del Activador de Plasminógeno Tipo Uroquinasa/sangre , Adulto , Pruebas de Aglutinación , Biomarcadores/sangre , Brucelosis/sangre , Brucelosis/terapia , Estudios de Casos y Controles , Ensayo de Inmunoadsorción Enzimática , Femenino , Humanos , MasculinoRESUMEN
The aims of this study were; to investigate the hand hygiene compliance of the health care workers (HCWs) during their routine patient care, to determine the methicillin-resistant Staphylococcus aureus (MRSA) hand colonization of the HCWs, to investigate the effect of different hand hygiene products on MRSA colonization and to evaluate the effectiveness of chromogenic agar for detecting MRSA. HCWs were investigated during their routine patient care and hand cultures were taken before and after hand wash/hygiene. Two different techniques were used to obtain the hand cultures: fingertip method (CHROMagar MRSA containing HygiSlide); and direct swab method and then inoculation to CHROMagar MRSA media. MRSA strains grown on those cultures were confirmed with conventional methods. A total of 100 HCWs (of them 61 were female; mean age: 32.7 ± 5.2 years; age range: 25-51 years) involving physicians (n= 33), nurses (n= 38) and health care assistants (n= 29), were included in the study. MRSA was detected in 39% and 11% before hand hygiene and in 13% and 6% after hand hygiene, with HygiSlide CHROMagar media and with CHROMagar in plate media, respectively. No difference were found regarding clinics, occupations, or the type of patient handling in those HCWs who were positive (n= 13) for MRSA colonization following hand hygiene, and those who were negative (n= 26). However, the type of the hand hygiene product used exhibited a statistical difference. None of the seven HCWs who used alcohol based hand rub revealed growth in the second culture while 10 of 19 (53%) HCWs who used soap and three of 13 (23%) HCWs who used chlorhexidine were still colonized with MRSA. In terms of reduction in the MRSA counts, the most effective one was the alcohol based hand rub while the soap was the least, since seven of 19 (37%) HCWs who used soap showed no reduction at all in the MRSA counts. A high ratio of hand colonization with MRSA was detected in our hospital staff (39%). It was shown that the colonization could be reduced significantly (with a rate of 66%) with hand hygiene. Alcohol based hand rub was found to be the most effective method in hand hygiene. The fingertip technique was found to be superior to inoculation to plate media for obtaining hand cultures and CHROMagar MRSA media was found to be rapid, effective and practical for detecting the MRSA hand colonization.
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Desinfectantes/normas , Higiene de las Manos/métodos , Mano/microbiología , Personal de Salud , Staphylococcus aureus Resistente a Meticilina/crecimiento & desarrollo , Infecciones Estafilocócicas/prevención & control , Adulto , Clorhexidina/normas , Compuestos Cromogénicos/normas , Infección Hospitalaria/prevención & control , Medios de Cultivo/normas , Desinfectantes/administración & dosificación , Etanol/normas , Femenino , Desinfección de las Manos , Higiene de las Manos/normas , Humanos , Masculino , Staphylococcus aureus Resistente a Meticilina/aislamiento & purificación , Persona de Mediana Edad , Jabones/normas , Manejo de Especímenes/métodos , Manejo de Especímenes/normasRESUMEN
The aim of this study was to determine whether vancomycin resistant Staphylococcus aureus (VRSA) and vancomycin intermediate susceptible S.aureus (VISA) strains were present among methicillin-resistant S.aureus (MRSA) strains isolated from patients hospitalised at intensive care units (ICU) of hospitals located at different regions of Turkey and to determine the minimum inhibitory concentration (MIC) values of teicoplanin, linezolid, tigecycline, quinupristin-dalfopristin and daptomycin, which are alternative drugs for the treatment of MRSA infections. A total of 260 MRSA clinical strains (isolated from 113 lower respiratory tract, 90 blood, 24 wound, 17 catheter, 13 nasal swabs, two urine and one CSF sample) were collected from nine health-care centers in eight provinces [Ankara (n= 52), Konya (n= 49), Antalya (n= 40), Istanbul (n= 7), Izmir (37), Diyarbakir (n= 15), Van (n= 12), Trabzon (n= 48)] selected as representatives of the seven different geographical regions of Turkey. Methicillin resistance was determined by cefoxitin disk diffusion in the hospitals where the strains were isolated and confirmed by oxacillin salt agar screening at the Refik Saydam National Public Health Agency. Screening for VISA and VRSA was conducted using the agar screening test and E-test. Susceptibility of the MRSA strains to other antibiotics was also determined by E-test method. None of the 260 MRSA strains were determined to be VRSA or VISA. All were susceptible to teicoplanin and linezolid, and susceptibility rates to daptomycin, tigecycline and quinupristin-dalfopristin were 99.6%, 96.9%, and 95%, respectively. Absence of VISA and VRSA among the MRSA strains surveyed currently seemed hopeful, however, continuous surveillance is necessary. In order to prevent the development of VISA and VRSA strains the use of linezolid, tigecycline, quinupristin-dalfopristin and daptomycin should be encouraged as alternative agents of treatment of MRSA infections.
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Antibacterianos/farmacología , Staphylococcus aureus Resistente a Meticilina/efectos de los fármacos , Infecciones Estafilocócicas/microbiología , Vancomicina/farmacología , Acetamidas/farmacología , Daptomicina/farmacología , Humanos , Unidades de Cuidados Intensivos , Linezolid , Staphylococcus aureus Resistente a Meticilina/aislamiento & purificación , Pruebas de Sensibilidad Microbiana/métodos , Minociclina/análogos & derivados , Minociclina/farmacología , Oxazolidinonas/farmacología , Infecciones Estafilocócicas/tratamiento farmacológico , Teicoplanina/farmacología , Tigeciclina , Turquía , Resistencia a la Vancomicina , Virginiamicina/farmacologíaRESUMEN
Acute kidney injury (AKI) is rarely reported in the clinical course of H1N1 infection and this condition is strongly related with increasing of mortality risk. However, there are no sufficient data about the development of AKI due to H1N1 infections. The recent reports were documented for elevation of creatinine phosphokinase levels in the course of influenza infection, but rhabdomyolysis was rarely reported. Herein, we present a 28-year-old female patient and a 19-year-old male patient with AKI in the course of H1N1 influenza infection due to rhabdomyolysis.
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Lesión Renal Aguda/etiología , Subtipo H1N1 del Virus de la Influenza A , Gripe Humana/complicaciones , Rabdomiólisis/complicaciones , Adulto , Femenino , Humanos , Gripe Humana/virología , Masculino , Adulto JovenRESUMEN
The majority of catheter-related bloodstream infections (CR-BSI) are associated with central venous catheters (CVCs) and most of them develop in patients staying at intensive care units (ICUs). The aim of this study was to assess the performance of different methods for the diagnosis of CR-BSI in neurology and neurosurgery ICUs of our hospital. This prospective study was carried out between January 2007 and January 2008 and all of the patients were followed daily for CR-BSI after the insertion of CVCs. Blood cultures were taken simultaneously from the catheter lumen and from at least one peripheral vein when there was a suspicion of CR-BSI. Additionally, from patients whose CVCs were removed, catheter tip cultures were taken and from patients with exit site infection, cultures of the skin surrounding the catheter entrance were taken. Catheter tip cultures were done by using quantitative and semiquantitative culture methods. Blood cultures taken from the catheter lumen and peripheral vein were incubated in the BACTEC 9050 (Becton Dickinson, USA) automated blood culture system. Gram and acridine orange (AO) staining were used for the smears prepared from the catheter tips and blood cultures. To evaluate the value of culture and staining methods in the diagnosis of CR-BSI; sensitivity, specificity, positive and negative predictive values (PPV and NPV, respectively) of each method were determined. A total of 148 patients (66 male, 82 female; age range: 1-94 years, mean age: 58.7 ± 21.8 years) were included in the study, of whom 67 (45.3%) were from neurology and 81 (54.7%) were from neurosurgery ICUs. One hundred ninety-nine CVC application performed in 148 patients were evaluated. Mean duration of catheterization was 8.5 ± 5.2 days. Thirty-two episodes of CR-BSI among 199 catheterizations (16%) in 29 patients among a total of 148 patients (19.6%) were determined. The most frequently isolated microorganisms were methicillin-resistant coagulase-negative staphylococci (8/32; 25%), penicillin-resistant Enterococcus spp. (8/32; 25%) and Candida albicans (4/32; 12.5%). Sensitivity, specificity, PPV and NPVs of the quantitative and semiquantitative culture methods of the catheter tip and the differential time to positivity (positive result obtained at least two hours earlier in blood cultures drawn through the catheter than the peripheral blood cultures which were taken simultaneously) between blood cultures drawn through the catheter and those drawn from the peripheral vein were 100% for the diagnosis of CR-BSI. Sensitivity and NPV of the isolation method of the same microorganism from blood culture drawn through the catheter and drawn from the peripheral vein were 100%, specificity was 85% and PPV was 88% for the diagnosis of CR-BSI. Sensitivity, specificity, PPV and NPVs of Gram and drawn simultaneously from the peripheral vein and quantitative and semiquantitative cultures of the catheter tip in patients with removed catheter, were important factors in terms of diagnosis of CR-BSI. It was also concluded that AO staining could provide additional benefit in the diagnosis of CR-BSI since it has higher sensitivity, specificity, PPV and NPVs for peripheral blood cultures and catheter tip cultures compared to Gram staining.
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Infecciones Relacionadas con Catéteres/diagnóstico , Cateterismo Venoso Central/efectos adversos , Catéteres de Permanencia/microbiología , Sepsis/diagnóstico , Naranja de Acridina , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Candida albicans/aislamiento & purificación , Infecciones Relacionadas con Catéteres/microbiología , Niño , Preescolar , Enterococcus/aislamiento & purificación , Femenino , Colorantes Fluorescentes , Violeta de Genciana , Humanos , Lactante , Unidades de Cuidados Intensivos , Masculino , Persona de Mediana Edad , Fenazinas , Valor Predictivo de las Pruebas , Estudios Prospectivos , Sensibilidad y Especificidad , Sepsis/microbiología , Staphylococcus/aislamiento & purificación , Adulto JovenRESUMEN
The aim of this study was to determine the minimal inhibitory concentration (MIC) values of vancomycin, teicoplanin, tigecycline and linezolid in 100 methicillin-resistant staphylococci [21 methicillin-resistant Staphylococcus aureus (MRSA) and 79 methicillin-resistant coagulase negative staphylococcus (MR-CNS)] isolated as agents of nosocomial infection from patients at Ankara Training and Research Hospital between June 2005-March 2007. The MIC values for vancomycin, teicoplanin, linezolid and tigecycline were tested by E-test method (AB Biodisk, Sweden). For 21 MRSA strains MIC50 and MIC90 values were as follows: vancomycin 0.125 µg/ml and 1 µg/ml; teicoplanin 0.5 µg/ml and 3 µg/ml, linezolid 0.047 µg/ml and 0.19 µg/ml; tigecycline 0.094 µg/ml and 0.5 µg/ml, respectively. For 79 MR-CNS strains MIC50 and MIC90 values were as follows: vancomycin 0.5 µg/ml and 2 µg/ml; teicoplanin 2 µg/ml and 4 µg/ml; linezolid 0.125 µg/ml and 0.25 µg/ml; tigecycline 0.38 µg/ml and 0.5 µg/ml, respectively. No resistance to vancomycin, teicoplanin, tigecycline and linezolid were determined in methicillin-resistant staphylococcus strains isolated from the inpatients in our hospital. Among glycopeptides, MIC50 and MIC90 values of vancomycin were found to be lower than that of teicoplanin.
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Antibacterianos/farmacología , Infección Hospitalaria/microbiología , Staphylococcus aureus Resistente a Meticilina/efectos de los fármacos , Infecciones Estafilocócicas/microbiología , Acetamidas/farmacología , Humanos , Linezolid , Pruebas de Sensibilidad Microbiana , Minociclina/análogos & derivados , Minociclina/farmacología , Oxazolidinonas/farmacología , Teicoplanina/farmacología , Tigeciclina , Turquía , Vancomicina/farmacologíaRESUMEN
Intestinal parasites are the important etiological agents of water and food related diarrhea cases which are frequently seen during summer/early autumn seasons in developing countries. This point prevalence study was aimed to determine the protozoal antigen positivity rate in diarrhea cases admitted to the emergency service in one single day. A total of 198 diarrheal patients (90 male, 108 female; age range: 1-82 years, mean age: 29 years) who were admitted to the emergency service of Ankara Training and Research Hospital were included in the study. Macroscopic and direct microscopic examinations were performed for the stool samples of patients, and the samples which yielded pathological microscopic findings (e.g. presence of leukocytes, erythrocytes, and trophozoits) were investigated in terms of Entamoeba histolytica adhesin antigen, Giardia intestinalis cyst antigen and Cryptosporidium oocyst antigen by commercial ELISA kits (Techlab, USA). Macroscopic examination of the stool samples revealed that 60 (30%) of them had blood and mucous, 137 (69%) were watery and one sample had normal appearance. Pathologic results were obtained for 96 (48.5%) of the samples by microscopic examination: 36 (37.5%) revealed erythrocytes, 90 (93.7%) had leukocytes and 3 (1.5%) had G.intestinalis trophozoites. Since Shigella spp. were cultured in two of these 96 samples, these two cases were omitted from the study and 94 samples were investigated by ELISA assays. G.intestinalis was detected in 13 (13.8%) and E.histolytica in 2 (2.1%) samples while Cryptosporidium antigen was not detected in any of the samples by the ELISA assays. It was concluded that ELISA antigen assays were rapid and cost-effective methods for the determination of the causative agent in cases of diarrhea.
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Antígenos de Protozoos/análisis , Diarrea/parasitología , Parasitosis Intestinales/epidemiología , Infecciones por Protozoos/epidemiología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Análisis Costo-Beneficio , Cryptosporidium/inmunología , Cryptosporidium/aislamiento & purificación , Diarrea/epidemiología , Entamoeba histolytica/inmunología , Entamoeba histolytica/aislamiento & purificación , Ensayo de Inmunoadsorción Enzimática/economía , Ensayo de Inmunoadsorción Enzimática/normas , Heces/citología , Heces/parasitología , Femenino , Giardia lamblia/inmunología , Giardia lamblia/aislamiento & purificación , Humanos , Lactante , Parasitosis Intestinales/parasitología , Masculino , Persona de Mediana Edad , Prevalencia , Infecciones por Protozoos/parasitología , Turquía/epidemiología , Adulto JovenRESUMEN
The fatality rate of Crimean-Congo haemorrhagic fever (CCHF) disease has been reported as 5.4-80%. In this prospective study our aim was to evaluate the clinical and laboratory predictors of fatality in patients with CCHF. Among probable CCHF patients admitted to our clinic between 2005 and 2008, patients with positive IgM antibodies and/or polymerase chain reaction for CCHF virus were included in the study. To determine the predictors of fatality, we compared epidemiological, clinical and laboratory findings of the fatal cases with survivors. Ninety-three confirmed CCHF patients were included in the study; 56 (60.2%) of them were female. Mean patient age was 48.4+/-17.7 y and mean hospital stay was 7.9+/-3.0 days. Five patients died (5.4%). The rates of haemorrhage, diarrhoea and confusion were higher in fatal cases compared with non-fatal cases (p<0.05). Aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase, lactate dehydrogenase (LDH), and C-reactive protein levels were higher in fatal cases; the international normalized ratio (INR) and activated partial thromboplastin time (aPTT) were longer and mean platelet counts were lower (p<0.05). By multivariate analysis, diarrhoea, melena, haematemesis, haematuria, elevated ALT and LDH, and prolongation of aPTT were independent clinical and laboratory predictors associated with fatality. We suggest that for patients who have diarrhoea, melena, haematemesis, haematuria, elevated AST and LDH, and a prolonged aPTT, physicians should be aware of the high fatality risk.
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Virus de la Fiebre Hemorrágica de Crimea-Congo/aislamiento & purificación , Fiebre Hemorrágica de Crimea , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Diarrea , Femenino , Hemorragia , Virus de la Fiebre Hemorrágica de Crimea-Congo/genética , Fiebre Hemorrágica de Crimea/sangre , Fiebre Hemorrágica de Crimea/diagnóstico , Fiebre Hemorrágica de Crimea/epidemiología , Fiebre Hemorrágica de Crimea/mortalidad , Hospitales , Humanos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Valor Predictivo de las Pruebas , Pronóstico , Estudios Prospectivos , Factores de Riesgo , Estadísticas no Paramétricas , Turquía/epidemiologíaRESUMEN
BACKGROUND: Depressive symptoms and myalgia are commonly seen in patients with chronic hepatitis B and chronic hepatitis C. OBJECTIVE: To investigate the efficacy of acupuncture treatment on depressive symptoms and myalgia in patients with hepatitis. METHODS: Of 44 patients with hepatitis screened for depression and myalgia, 28 were enrolled and included in the study. The main outcome measure for depressive symptoms was Beck's Depression Inventory (BDI). For pain/myalgia, patients rated their pain on a scale from 0 to 10. Patients with a score greater than the cut-off point in either score were allocated to acupuncture treatment. The Chinese method of acupuncture was used. Treatment continued for 6 weeks. RESULTS: At baseline, 17/44 patients (39%) had a BDI score ≥17 and 24 (55%) had a pain score ≥5. A total of 28 patients were allocated to acupuncture treatment, forming three groups: group 1, 13 patients with high BDI and high myalgia scores; group 2, 11 patients with low BDI score but high myalgia score; group 3, 4 patients with high BDI score but low myalgia score. Adherence to treatment was good; all patients completed the sessions and there were no drop-outs. Significant improvements in end-treatment BDI and in myalgia scores compared with baseline levels was found. CONCLUSION: Acupuncture seems to be a promising treatment for patients with hepatitis. Further studies are warranted in large populations to establish the therapeutic role of acupuncture.
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Terapia por Acupuntura/métodos , Depresión/terapia , Hepatitis B/complicaciones , Hepatitis C/complicaciones , Enfermedades Musculares/terapia , Índice de Severidad de la Enfermedad , Adulto , Depresión/etiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Enfermedades Musculares/etiología , Satisfacción del Paciente , Estudios Prospectivos , Resultado del Tratamiento , TurquíaRESUMEN
This study was aimed to determine the rates of methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus (VRE) carriage in a neonatal intensive care unit in a Training and Research Hospital in Ankara, Turkey. A total of 135 newborns were included in the study. Following 5 days stay in intensive care unit, samples were taken from nose and umbilicus for the detection of MRSA and cultivated in mannitol-salt agar and oxacillin-resistance screening agar (ORSAB), respectively. The samples taken from rectum to screen VRE, were placed onto Enterococcosel agar which contained vancomycin and ceftazidime. The confirmation of methicillin resistance in MRSA suspected isolates was performed by oxacillin and cefoxitin disk diffusion tests according to Clinical Laboratory Standards Institute (CLSI) guidelines. Twenty eight (20.7%) of 135 newborns had nasal MRSA carriage, 30 (22.2%) of 135 had umbilical and 10 (7.4%) had both nasal and umbilical MRSA carriage. No rectal VRE carriage was found among the newborns. As a result, we suggest that periodical MRSA and VRE carriage investigation in the patients hospitalized in neonatal intensive care units is of outmost help to control and prevent nosocomial infections.
Asunto(s)
Portador Sano/epidemiología , Enterococcus/aislamiento & purificación , Infecciones por Bacterias Grampositivas/epidemiología , Staphylococcus aureus Resistente a Meticilina/aislamiento & purificación , Infecciones Estafilocócicas/epidemiología , Resistencia a la Vancomicina , Portador Sano/microbiología , Infección Hospitalaria/microbiología , Infección Hospitalaria/prevención & control , Enterococcus/efectos de los fármacos , Infecciones por Bacterias Grampositivas/microbiología , Humanos , Recién Nacido , Unidades de Cuidado Intensivo Neonatal , Infecciones Estafilocócicas/microbiología , Turquía/epidemiologíaRESUMEN
Methicillin-resistant Staphylococcus aureus (MRSA) strains which are the most frequent causes of hospital acquired infections, are also currently encountered with increasing frequency in community acquired infections. Therefore rapid and accurate identification of MRSA strains is essential in both implementation of infection control measures and prevention of the nosocomial spread of this microorganism. The aim of this study was to determine the specifisity, sensitivity, positive and negative predictive values of two commercial media, one was Oxacillin Resistance Screening Agar Base (ORSAB; Oxoid, England) and the other was chromogenic MRSA agar (BBL CHROMagar MRSA; BD, Paris, France), for the identification of MRSA strains. A total of 175 clinical S. aureus isolates, of which 45 were MRSA, and 130 were methicillin-susceptible S. aureus (MSSA), whose susceptibility to methicillin were determined by disk diffusion method using oxacillin and cefoxitin disks in Mueller-Hinton agar medium, were included in the study. When oxacillin disk diffusion test was accepted as the reference method, the specificity, sensitivity, positive and negative predictive values of ORSAB were found as 97.7%, 40%, 36.5% and 98.1%, respectively; while these values were detected as 95.5%, 37.6%, 35.7% and 96.1% for CHROMagar MRSA, respectively. These results indicated that both media may be used in laboratories where work load is high and the number of personnel is inadequate especially in screening studies together or in addition to another medium (mannitol-salt agar). However, since these methods exhibit low specifity (high false positive results), positive results should be confirmed using other methods such as disk diffusion, E-test or microdilution susceptibility testing.
Asunto(s)
Antibacterianos/farmacología , Medios de Cultivo/normas , Resistencia a la Meticilina , Staphylococcus aureus Resistente a Meticilina/efectos de los fármacos , Oxacilina/farmacología , Agar/normas , Humanos , Staphylococcus aureus Resistente a Meticilina/aislamiento & purificación , Pruebas de Sensibilidad Microbiana , Resistencia a las Penicilinas , Valor Predictivo de las Pruebas , Sensibilidad y EspecificidadRESUMEN
BACKGROUND: Short-term peripheral venous catheter-related bloodstream infection (PVCR-BSI) rates have not been systematically studied in resource-limited countries, and data on their incidence by number of device days are not available. METHODS: Prospective, surveillance study on PVCR-BSI conducted from September 1, 2013, to May 31, 2019, in 727 intensive care units (ICUs), by members of the International Nosocomial Infection Control Consortium (INICC), from 268 hospitals in 141 cities of 42 countries of Africa, the Americas, Eastern Mediterranean, Europe, South East Asia, and Western Pacific regions. For this research, we applied definition and criteria of the CDC NHSN, methodology of the INICC, and software named INICC Surveillance Online System. RESULTS: We followed 149,609 ICU patients for 731,135 bed days and 743,508 short-term peripheral venous catheter (PVC) days. We identified 1,789 PVCR-BSIs for an overall rate of 2.41 per 1,000 PVC days. Mortality in patients with PVC but without PVCR-BSI was 6.67%, and mortality was 18% in patients with PVC and PVCR-BSI. The length of stay of patients with PVC but without PVCR-BSI was 4.83 days, and the length of stay was 9.85 days in patients with PVC and PVCR-BSI. Among these infections, the microorganism profile showed 58% gram-negative bacteria: Escherichia coli (16%), Klebsiella spp (11%), Pseudomonas aeruginosa (6%), Enterobacter spp (4%), and others (20%) including Serratia marcescens. Staphylococcus aureus were the predominant gram-positive bacteria (12%). CONCLUSIONS: PVCR-BSI rates in INICC ICUs were much higher than rates published from industrialized countries. Infection prevention programs must be implemented to reduce the incidence of PVCR-BSIs in resource-limited countries.
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Bacteriemia/epidemiología , Bacteriemia/etiología , Infecciones Relacionadas con Catéteres/epidemiología , Infecciones Relacionadas con Catéteres/microbiología , Infección Hospitalaria/epidemiología , Infección Hospitalaria/microbiología , Comités Consultivos , África/epidemiología , Américas/epidemiología , Asia Sudoriental/epidemiología , Catéteres Venosos Centrales/microbiología , Ciudades , Europa (Continente)/epidemiología , Hospitales , Humanos , Control de Infecciones , Unidades de Cuidados Intensivos , Islas del Mediterráneo/epidemiología , Estudios Multicéntricos como Asunto , Islas del Pacífico/epidemiología , Estudios Prospectivos , Vigilancia de GuardiaRESUMEN
The exact prevalence of Lyme disease caused by Borrelia burgdorferi is unknown in Turkey. However, B. burgdorferi seropositivity ranges between 6-44% among high risk groups. B. burgdorferi is transmitted to humans by the bite of infected ticks belonging to the genus Ixodes, which may be seen throughout our country. Since the Crimean-Congo Hemorrhagic Fever (CCHF) is attracting attentions to tick bites more than ever in Turkey, the patients with tick bites are followed up more cautiously and have been referred to central hospitals. In this study 4 patients who were referred to our center with prediagnosis of CCHF but later appeared to be Lyme cases, were presented. All of the cases were women, age ranging between 25-67 years old. The patients were from areas where there is high risk of CCHF. CCHF were ruled out in these patients by agent specific polymerase chain reaction and IgM results. All of the patients were clinically diagnosed as Lyme disease since they had lesions compatible with erythema migrans. B. burgdorferi total antibodies investigated by ELISA (Zeus Scientific Inc., USA) were found positive in all patients. Since Western blot method could not be performed, positive serologic results have not be confirmed. However, the diagnosis of Lyme disease was done according to Centers for Disease Control and Prevention (CDC) criteria and all of the cases have recovered following treatment with antibiotics (cefuroxime axetil or sulbactam ampicillin or amoxicillin clavulanic acid). When the increase in the incidence of arthropod-borne infections in our country is considered, it should be noted that tick-bite cases should also be evaluated in terms of Lyme disease besides CCHF. Differential diagnosis of these infections is of critical value since early appropriate therapy is important to prevent the development of serious complications in both of the disease settings.
Asunto(s)
Vectores Arácnidos , Mordeduras y Picaduras/complicaciones , Ixodes , Enfermedad de Lyme/etiología , Adulto , Anciano , Animales , Anticuerpos Antibacterianos/sangre , Borrelia burgdorferi/inmunología , Diagnóstico Diferencial , Ensayo de Inmunoadsorción Enzimática , Femenino , Fiebre Hemorrágica de Crimea/diagnóstico , Fiebre Hemorrágica de Crimea/epidemiología , Fiebre Hemorrágica de Crimea/etiología , Humanos , Enfermedad de Lyme/diagnóstico , Enfermedad de Lyme/epidemiología , Persona de Mediana Edad , Prevalencia , Turquía/epidemiologíaRESUMEN
This study was aimed to investigate the prognostic value of tumor necrosis factor-alpha (TNF-alpha), interleukin-10 (IL-10), leptin and C-reactive protein (CRP) levels in newborn sepsis. A total of 57 newborns with nosocomial sepsis and 30 healthy newborns were included to the study. Serum TNF-alpha, IL-10, leptin (Biosource, Belgium) and CRP (Dade Behring, Germany) levels were investigated by ELISA methodology before the initiation of the therapy (day 0) and on the third and fifth days of therapy. Initial leptin levels were found to be high in the control group (p = 0.00) and CRP levels were found to be high in the patient group (p = 0.00). No significant difference was detected for IL-10 and TNF-alpha levels (p > 0.05). CRP levels were significantly higher in the patient group than the controls on the third day of the therapy (p = 0.001), however, no significant difference was detected for the other parameters (p > 0.05). On the fifth day of the therapy CRP (p = 0.023) and leptin (p = 0.00) levels were significantly high in the patient group and TNF-alpha in the control group (p = 0.00) while no significant difference was observed for IL-10 levels (p > 0.05). Mortality rate was 24.5%. When the mean TNF-alpha, IL-10, leptin and CRP levels on the 0th, 3rd and 5th days were analysed for alive (n = 43) and dead (n = 14) newborns with sepsis, it was observed that TNF-alpha, IL-10 and CRP levels were related with poor prognosis (p < 0.05). The ROC analysis performed for the determination of the prognostic performance of TNF-alpha and IL-10 revealed that these parameters had predictive value about mortality when their levels were above certain cut-off values (on the 5th day of therapy for IL-10 > 1.8 ng/ml and for TNF-alpha > 21.1 ng/ml). It can be concluded that besides routine laboratory parameters, serum TNF-alpha and IL-10 levels at the initiation of therapy and afterwards may help to predict prognosis and guide treatment in newborns with sepsis.
Asunto(s)
Proteína C-Reactiva/análisis , Interleucina-10/sangre , Leptina/sangre , Sepsis/sangre , Factor de Necrosis Tumoral alfa/sangre , Estudios de Casos y Controles , Infección Hospitalaria/sangre , Infección Hospitalaria/diagnóstico , Infección Hospitalaria/mortalidad , Ensayo de Inmunoadsorción Enzimática , Humanos , Recién Nacido , Valor Predictivo de las Pruebas , Pronóstico , Curva ROC , Sepsis/diagnóstico , Sepsis/mortalidadRESUMEN
Micrococcus strains which are the normal flora members of skin, mucosa and oropharynx, may lead to infections associated with intravenous catheter, chronic ambulatory peritoneal dialysis, venticular shunt and prosthetic valve. In this paper, a case of peritonitis due to Kocuria rosea of Micrococcea family, in a patient undergoing continuous ambulatory peritoneal dialysis (CAPD), was presented. Fiftysix years old female patient was admitted to the hospital by complaints of abdominal pain, nausea and fever. The patient was undergoing CAPD due to chronic renal failure for one and a half year and turbidity was detected in the peritoneal fluid during dialysis. Examination of the peritoneal fluid revealed 1800 cells/mm3, with no evidence of bacteria in Gram and Ziehl-Neelsen stained smears. No bacterial growth was detected in conventional culture media, however, bacteria was isolated from the peritoneal fluid culture on second day by Bactec (Becton Dickinson, USA) automated blood culture system. By means of API identification system (bioMerieux, USA), the causative agent was identified as Kocuria rosea. The patient was successfully treated with intraperitoneal teicoplanin (4 x 40 mg) for 14 days. In conclusion, in patients undergoing CAPD, rare pathogens should be considered in case of peritonitis and peritoneal fluid samples should be inoculated into automated culture systems.