Daptomycin vs. glycopeptides in the treatment of febrile neutropenia: results of the Izmir matched cohort study.

PURPOSE: In this multicentre, retrospective, matched cohort study we aimed to evaluate the outcomes of neutropenic fever cases that were treated with daptomycin or a glycopeptide (vancomycin or teicoplanin). METHODS: Data and outcomes of adult (aged > 18-years old) patients with neutropenic fever [(1) without clinical and radiological evidence of pneumonia, (2) who were treated with daptomycin or a glycopeptide (teicoplanin or vancomycin) for any reason and for at least 72 h] were extracted from the hospital databases. Matching was performed with all of the three following criteria: (1) underlying disease, (2) reason for starting daptomycin or glycopeptide (microbiologic evidence vs. microbiologic evidence, clinical infection vs. clinical infection and empirical therapy vs. empirical therapy) and (3) neutropenic status. RESULTS: Overall 128 patients [(69/123) (56.1%) in the daptomycin cohort (D) and 59/123 (48%) in the glycopeptide cohort (G)] had a resolution of fever at the end of 72 h antibiotic treatment (p = 0.25). There was no significant difference in cured, improved and (cured + improved) rates between (D) and (G) cohorts as well as fever of unknown origin cases or microbiologically confirmed infections or clinically defined infections subgroups (p > 0.05). There was also no significant difference (p > 0.05), in terms of persistent response in the (D) versus (G) cohorts, CONCLUSIONS: These findings suggest that although not better, daptomycin efficacy is comparable to vancomycin if used as empiric therapy in the treatment of adult febrile neutropenia. We conclude that daptomycin may be used at least as a salvage therapy alternative to glycopeptides in the treatment of adult febrile neutropenia cases. A large, randomized-controlled trial may further consolidate the evidence related to this question.

[Culture proven extra pulmonary tuberculosis: drug susceptibility and genetic profile analysis]. / Kültür ile kanitlanmis akciger disi tüberküloz: ilaç duyarliligi ve genetik profil analizi.

INTRODUCTION: Tuberculosis is seen generally in the lungs. Besides, all organs in the body can be affected by tuberculosis. Diagnosis of extra pulmonary tuberculosis (EPTB) is more difficult than pulmonary tuberculosis (PTB). Although, the isolation of Mycobacterium tuberculosis is gold standard of diagnosis of EPTB, the rate of bacteriologic isolation is low especially in EPTB. If M. tuberculosis is detected, it gives some information about the epidemiological features of the disease and drug susceptibility. MATERIALS AND METHODS: In this study, extra pulmonary samples isolated M. tuberculosis in mycobacteriology laboratory were evaluated between 2009-2016. The identification of the genotype of isolated bacteria and drug sensitivity tests were conducted. Spoligotyping was accomplished using a standard technique as described previously. RESULT: During the study period, M. tuberculosis were cultured in 171 extra pulmonary samples of 165 patients (75 male, 90 female, mean age: 53.35 ± 19.92). Initial direct microscopically examination was revealed M. tuberculosis in 44 patients. There were more than one extra pulmonary organ involvement in six patients. The most common EPTB forms were lymph node TB in 60 patients, pleural tuberculosis in 32 patients and bone tuberculosis in 25 patients. Immunosuppression was detected in 44 (%26.6) patients. Among these, seven patients were infected with HIV. In 21 of 175 samples, drug resistance was detected. Rifampicin resistance in 7 samples, high level isoniazid resistance in 11 samples and rifampicin plus isoniazid resistance (multiply drug resistance) in 6 samples were demonstrated. One hundred thirty-five clinical isolates were cultured from tuberculosis patient's different samples, of which the genetic profile was determined by using Spoligotyping. The major Spoligotypes were T (n= 62; 45.9%), LAM7-TUR (ST41) (n= 11; 8.1%) and H1 (n= 9; 6%) genotypes. CONCLUSIONS: The most common EPTB form was lymph node tuberculosis in culture proven patients. In these patients group, multiply drug resistance rate was low (3.6%). Spoligotypes T (45.9%) was detected as most common genetic profile.

[Investigation of bacterial and viral etiology in community acquired central nervous system infections with molecular methods]. / Toplum kökenli santral sinir sistemi enfeksiyonlarinda bakteriyel ve viral etiyolojinin moleküler yöntemlerle degerlendirilmesi.

In this multicenter prospective cohort study, it was aimed to evaluate the bacterial and viral etiology in community-acquired central nervous system infections by standart bacteriological culture and multiplex polymerase chain reaction (PCR) methods. Patients hospitalized with central nervous system infections between April 2012 and February 2014 were enrolled in the study. Demographic and clinical information of the patients were collected prospectively. Cerebrospinal fluid (CSF) samples of the patients were examined by standart bacteriological culture methods, bacterial multiplex PCR (Seeplex meningitis-B ACE Detection (Streptococcus pneumoniae, Neisseria meningitidis, Haemophilus influenzae, Listeria monocytogenes, Group B streptococci) and viral multiplex PCR (Seeplex meningitis-V1 ACE Detection kits herpes simplex virus-1 (HSV1), herpes simplex virus-2 (HSV2), varicella zoster virus (VZV), cytomegalovirus (CMV), Epstein Barr virus (EBV) and human herpes virus 6 (HHV6)) (Seeplex meningitis-V2 ACE Detection kit (enteroviruses)). Patients were classified as purulent meningitis, aseptic meningitis and encephalitis according to their clinical, CSF (leukocyte level, predominant cell type, protein and glucose (blood/CSF) levels) and cranial imaging results. Patients who were infected with a pathogen other than the detection of the kit or diagnosed as chronic meningitis and other diseases during the follow up, were excluded from the study. A total of 79 patients (28 female, 51 male, aged 42.1 ± 18.5) fulfilled the study inclusion criteria. A total of 46 patients were classified in purulent meningitis group whereas 33 were in aseptic meningitis/encephalitis group. Pathogens were detected by multiplex PCR in 41 patients. CSF cultures were positive in 10 (21.7%) patients (nine S.pneumoniae, one H.influenzae) and PCR were positive for 27 (58.6%) patients in purulent meningitis group. In this group one type of bacteria were detected in 18 patients (14 S.pneumoniae, two N.meningitidis, one H.influenzae, one L.monocytogenes). Besides, it is noteworthy that multiple pathogens were detected such as bacteria-virus combination in eight patients and two different bacteria in one patient. In the aseptic meningitis/encephalitis group, pathogens were detected in 14 out of 33 patients; single type of viruses in 11 patients (seven enterovirus, two HSV1, one HSV2, one VZV) and two different viruses were determined in three patients. These data suggest that multiplex PCR methods may increase the isolation rate of pathogens in central nervous system infections. Existence of mixed pathogen growth is remarkable in our study. Further studies are needed for the clinical relevance of this result.

The clinical features, treatment and prognosis of neutropenic fever and Coronavirus disease 2019 results of the multicentre teos study.

This multicentre (22 centres in Turkey) retrospective cohort study aimed to assess the clinical outcomes of patients with neutropenic fever and SARS-CoV-2 positivity. Study period was 15 March 2020-15 August 2021. A total of 170 cases (58 female, aged 59 ± 15.5 years) that fulfilled the inclusion criteria were included in the study. One-month mortality rate (OMM) was 44.8%. The logistic regression analysis showed the following significant variables for the mentioned dependent variables: (i) achieving PCR negativity: receiving a maximum of 5 days of favipiravir (p = 0.005, OR 5.166, 95% CI 1.639-16.280); (ii) need for ICU: receiving glycopeptide therapy at any time during the COVID-19/FEN episode (p = 0.001, OR 6.566, 95% CI 2.137-20.172), the need for mechanical ventilation (p < 0.001, OR 62.042, 95% CI 9.528-404.011); (iii) need for mechanical ventilation: failure to recover from neutropenia (p < 0.001, OR 17.869, 95% CI 3.592-88.907), receiving tocilizumab therapy (p = 0.028, OR 32.227, 95% CI 1.469-707.053), septic shock (p = 0.001, OR 15.4 96% CI 3.164-75.897), and the need for ICU (p < 0.001, OR 91.818, 95% CI 15.360-548.873), (iv) OMM: [mechanical ventilation (p = 0.001, OR 19.041, 95% CI 3.229-112.286) and septic shock (p = 0.010, OR 5.589,95% CI 1.509-20.700)]. Although it includes a relatively limited number of patients, our findings suggest that COVID-19 and FEN are associated with significant mortality and morbidity.

Prediction of unfavorable outcomes in West Nile virus neuroinvasive infection - Result of a multinational ID-IRI study.

BACKGROUND: WNV causes 1.4% of all central nervous system infections and is the most common cause of epidemic neuro-invasive disease in humans. OBJECTIVES: Our main objective was to investigate retrospectively West Nile virus neuroinvasive disease (WNND) cases hospitalized during 2010-2017 and identified factors that can influence prognosis. STUDY DESIGN: We documented the demographic, epidemiologic, clinical and laboratory data of WNND and identified factors that can influence prognosis. The data were recruited through Infectious Diseases International Research Initiative (ID-IRI), which serves as a network for clinical researches. RESULTS: We investigated 165 patients with WNND in 10 countries from three continents. 27 patients died and the mortality rate was 16.4%. In an univariate analysis age, congestive heart failure, neoplasm and ischemic heart disease (p < 0.001), neuropsychiatric disorders (p = 0.011), chronic hepatitis (p = 0.024) and hypertension (p = 0.043) were risk factors for death. Fatal evolution was also correlated with ICU addmission, disorientation, speech disorders, change in consciousnes, coma, a low Glasgow coma score, obtundation, confusion (p < 0.001), history of syncope (p = 0.002) and history of unconsciousness (p = 0.037). In a binomial logistic regresssion analysis only age and coma remained independent prediction factors for death. We created an equation that was calculated according to age, co-morbidities and clinical manifestations that may be used to establish the prognosis of WNND patients. CONCLUSIONS: WNND remain an important factor for morbidity and mortality worldwide, evolution to death or survival with sequelae are not rare. Our study creates an equation that may be used in the future to establish the prognosis of WNND patients.

Tigecycline in the treatment of multidrug-resistant Acinetobacter baumannii meningitis: Results of the Ege study.

OBJECTIVES: In this study we retrospectively reviewed A. baumannii meningitis cases treated with tigecycline including regimens and evaluated the efficacy of tigecycline in the therapy. PATIENTS AND METHODS: Study was performed in seven tertiary-care educational hospitals from five cities of Turkey and one center from France. We extracted data and outcomes of all adult (aged >18) patients with culture proven A. baumannii meningitis treated with tigecycline including antibiotic therapy until April 2016. RESULTS: A total of 23 patients (15 male and eight female) fulfilled our inclusion criteria. All Acinetobacter strains were carbapenem-resistant and susceptible to tigecycline. Six cases received tigecycline monotherapy while 17 received tigecycline including combination therapy (10 with colistin, 4 with netilmicin, 3 with amikacin, 4 with meropenem). Seven of 23 cases (30%) died during the tigecycline including therapy (1 in monotherapy, 4 in colistin, 2 in netilmicin, 1 amikacin, one case received tigecycline + netilmicin followed by tigecycline + colistin). Hence, overall end of treatment (EOT) success was 70%. However, since further 27% died due to additional nosocomial infections, overall clinical success (relieved symptoms at the EOT and one-month post-therapy survival without any relapse or reinfection) decreased to 43%. CONCLUSION: We conclude that tigecycline may be an alternative in the salvage treatment of nosocomial multidrug-resistant Acinetobacter spp. meningitis. Acinetobacter spp. Meningitis.

Tigecycline in the management of post-neurosurgical spondylodiscitis: a review of eight cases.

BACKGROUND: Tigecycline is a relatively new glycylcycline antimicrobial, active in vitro against a variety of Gram-positive and Gram-negative organisms. In this study we evaluated the outcomes of spondylodiscitis cases treated with tigecycline-including therapies retrospectively. METHODS: All adult (age >18 years) cases with a diagnosis of spondylodiscitis, who were treated with a tigecycline-including therapy between 2007 and 2011, were included in the study. The primary efficacy outcome was clinical success with tigecycline at the end of induction, while the secondary efficacy outcome was maintenance of success through 3 months following completion of induction. RESULTS: A total of eight spondylodiscitis cases fulfilled the study inclusion criteria. All cases had back pain, restricted mobility, magnetic resonance findings associated with spondylodiscitis, and microbiology or pathological findings related to spondylodiscitis. All had post-neurosurgical spondylodiscitis. In five cases, tigecycline was started in accordance with the antibacterial susceptibility results from intervertebral tissue biopsy cultures, whereas in three it was started empirically. All cases had received several different antibacterials with failure before receiving tigecycline. The mean duration of tigecycline treatment was 37±21 days. One case was lost to follow-up after 2 days of tigecycline. Primary and secondary success was achieved in the remaining seven cases. CONCLUSIONS: These limited data suggest that tigecycline may have a role in the treatment of refractory spondylodiscitis cases.

Primary systemic Al amyloidosis presenting as temporal arteritis.

Temporal arteritis is most common vasculitis in elderly and imitated by miscellaneous disorders. Temporal artery biopsy is the gold standard test in the diagnosis of giant cell arteritis (GCA). Hereby, we describe a case of a 67-year-old man who presented initially with temporal arteritis; however, a lip biopsy then revealed AL amyloidosis. In this respect, temporal artery biopsy should be performed for definitive diagnosis of GCA particularly patients with systemic symptoms and treatment resistant.