Tigecycline Susceptibility in Multidrug Resistant Acinetobacter Isolates from Turkey

WOS: 000325386100009PubMed ID: 24459835The present study aimed to evaluate antimicrobial activity of tigecycline against 84 multidrug resistant (MDR) Acinetobacter spp. strains by disc diffusion and E-test methods. The results of disc diffusion test were compared according to two different interpretation ways. In addition, E-test results and the disc diffusion results that interpreted by both the methods were checked for compatibility. According to the disc diffusion test, 3 strains (3.57%) were found resistant to tigecycline when considering breakpoints suggested by Food and Drug Administration (FDA). On the other hand, none of the strains was found resistant to the evaluation criteria recommended by Jones et al. (2007). Considering E-test results of tigecycline, MIC50 and MIC90 values of tigecycline for Acinetobacter spp. were 0.75 and 1 mg/l, respectively. Based on FDA defined breakpoints for Enterobacteriaceae, any resistant isolate was detected. In conclusion, although there are some differences in the results, tigecycline was found quite effective on Acinetobacter spp. isolates with reference to the both disc diffusion and the E-test methods

Prevalência e fatores de risco associados à colonização por enterococos resistente à vancomicina

Enterococci have been recognized as clinically important pathogen in high-risk population of hospitalized patients. The aims of this study were to detect the prevalence of intestinal vancomycin-resistant enterococci (VRE) colonization among patients in the high-risk departments and the risk factors related to resistance in hospitalized patients in where VRE had been rarely isolated previously in Tepecik Educational and Research Hospital, Izmir, Turkey. Following the first isolation of VRE in two patient in intensive care unit (ICU) and neonatal ICU in the same day, we carried out a point prevalence culture survey. Rectal swabs were obtained from patients. For comparison, 30 control patients hospitalized in internal medicine service were also analyzed. Ninety-three patients were investigated. Eighteen patients (19.3%) were found to be VRE carriers, whereas none of the control group patients had VRE. Thirteen strains were identified as Enterococcus faecium, four were Enterococcus gallinorum, and one was Enterococcus casseliflavus. Nine of E. faecium strains were resistant to vancomycin; the remainders were intermediate resistance to vancomycin and all of them sensitive to teicoplanin. Lengths of hospital stay, age and low birth weight for newborn were significantly associated with VRE colonization. A high prevalence of colonization by VRE was found at our ICUs, emphazing the importance of length stay in the ICU and low birth weight for newborn as a risk factor for colonization. VRE colonization must be monitored and risk factors should be determined, because of establish prevention and control measures.Os enterococos foram reconhecidos como patógenos clinicamente importantes na população de alto risco de pacientes hospitalizados. Os objetivos deste estudo foram detectar a prevalência da colonização por enterocos intestinais resistentes à vancomicina (VRE) no Hospital Tepecik, Izmir, Turquia, entre pacientes dos serviços de alto risco e os fatores de risco relacionados com a resistência em pacientes internados onde a VRE foi raramente isolada anteriormente. Após o primeiro isolamento de VRE em dois pacientes na unidade de terapia intensiva (UTI) e UTI neonatal, no mesmo dia, foi realizado um levantamento de prevalência utilizando swab retal. Para efeito de comparação, 30 amostras de pacientes-controle do serviço de controle de medicina interna também foram analisadas. Noventa e três pacientes foram investigados. Dezoito pacientes (19,3%) foram considerados portadores de VRE, apesar de nenhum dos pacientes do grupo controle tinham VRE. Treze cepas foram identificadas como Enterococcus faecium, quatro foram Enterococcus gallinorum, e um foi Enterococcus casseliflavus. Nove cepas de E. faecium foram resistentes à vancomicina, os restos eram de resistência intermediária à vancomicina e todos eles sensíveis à teicoplanina. O tempo de permanência hospitalar, idade e peso baixo ao nascer de recém-nascidos foram significativamente associados à colonização por VRE. A alta prevalência de colonização por VRE foi encontrado em nossas UTIs, enfatizando a importância do tempo de internação na UTI e baixo peso ao nascer de recém-nascidos como fator de risco para a colonização. A colonização por VRE deve ser monitorada e fatores de risco devem ser determinados, no intuito de estabelecer medidas de prevenção e controle

A case of Acremonium strictum peritonitis

During the past two decades opportunistic fungal infections have emerged as important causes of morbidity and mortality in patients with severe underlying illnesses. A few cases of Acremonium spp. infections have been described in immunocompromised patients, but they have on occasion been reported as the cause invasive disease in immunocompetent individuals. Peritonitis is a common clinical problem that occurs in patients with end-stage renal disease treated by continous ambulatory peritoneal dialysis (CAPD). Yeasts, or rarely molds, may also cause peritonitis in patients on CAPD and we present here a case caused by Acremonium strictum

Gemella morbillorum Endocarditis

Infective endocarditis caused by Gemella morbillorum is a rare disease. In this report 67-year-old male patient with G. morbillorum endocarditis was presented. The patient was hospitalized as he had a fever of unknown origin and in the two of the three sets of blood cultures taken at the first day of hospitalization G. morbillorum was identified. The transthoracic echogram revealed 14 × 10 mm vegetation on the aortic noncoronary cuspis. After 4 weeks of antibiotic therapy, the case was referred to the clinic of cardiovascular surgery for valve surgery

Prevalence and antimicrobial susceptibility of Escherichia coli in outpatient urinary isolates in Izmir, Turkey

WOS: 000272573100018PubMed ID: 19865064Background: Knowledge of antimicrobial resistance pattern in Escherichia coli, the predominant pathogen associated with urinary tract infection (UTI), is important as a guide in selecting empirical antimicrobial therapy. The aim of this study was to determine the antibiotic susceptibility patterns of E. coli strains isolated from adult outpatients with UTI, in Izmir, Turkey. Material/Methods: This study was performed with isolates from outpatients with UTI, collected from 5 university and tertiary-care hospitals in Izmir, Turkey. Isolates were analyzed by standard methods and antimicrobial susceptibility testing was performed by Kirby-Bauer disc diffusion method. Results: A total of 4,534 E. coli strains (3,449 females and 1,085 males) were examined. Antibiotic resistance rates of the isolates for female and male, respectively: Ampicillin (61.8%, 78.7%), amoxicillin-clavulanic acid (36.6%, 59.1%), cefuroxime (22.5%, 41.3%), cefotaxime (18.2%, 35.8%), piperacillin-tazobactam (11.6%, 31.2%), amikacin (8.3%, 13.9%), gentamicin (24.9%, 40%), trimethoprim-sulfamethoxazole (42.1%, 57.3%), and ciprofloxacin/norfloxacin (42.1%, 63.3%). Extended spectrum beta-lactamase rate was found to be 18.3% and 26.1% for females and males, respectively. The isolates were significantly more resistant to all antibiotics in men than in females in this study (p < 0.001). Conclusions: The most important finding of our study is that a considerable proportion of the studied E. coli isolates were resistant to most antibiotics except amikacin. These data provide useful information for clinicians in determining the appropriate empirical antimicrobial regimen, and help authorities to formulate antibiotic prescription policies.Departmental sourcesSource of support: Departmental source