COVID-19-associated multisystem inflammatory syndrome in children: Experiences of three centres in Turkey.

BACKGROUND: The pathogenesis and clinical manifestations of the multisystem inflammatory syndrome in children (MIS-C) has not yet been fully elucidated and there is no clear consensus on its treatment yet. OBJECTIVES: To evaluate our patients diagnosed with MIS-C and present them to the literature in order to contribute to the better understanding of this new disease, which entered paediatric practice with the SARS-CoV-2 peak. METHODS: In this study, 17 MIS-C cases diagnosed according to the Centers for Disease Control and Prevention criteria were included. RESULTS: Of the patients, 7 (41.2%) had a comorbidity. Gastrointestinal system involvement was the most prominent in the patients (70.6%). Laparotomy was performed in 3 patients due to acute abdomen. Two patients had neurological involvement. Of the patients, 15 (88.2%) received intravenous immunoglobulin and 13 (76.5%) received both intravenous immunoglobulin and methylprednisolone. Two patients received invasive mechanical ventilation and 4 patients received high flow rate nasal cannula oxygen therapy. One of our patients who needed invasive mechanical ventilation and high vasoactive-inotrope support died despite all supportive treatments including plasmapheresis and extracorporeal membrane oxygenation. CONCLUSIONS: MIS-C picture can have a fatal course and may present with severe gastrointestinal and neurological signs. Unnecessary laparotomy should be avoided.

Assesment of colistin related side effects in premature neonates.

BACKGROUND: Colistin is an antibiotic in the polymyxin group and is especially important in the elimination of multi-drug resistant gram negative bacteria. To date, there are many studies investigating colistin related side effects, especially nephrotoxicity. However, there are few studies involving premature neonates, and this study aimed to investigate the side effects of colistin in this particular patient group. METHODS: Between January 2016 and May 2019, the medical records of premature neonates treated with colistin were retrospectively reviewed. The diagnosis of acute kidney injury (AKI) was performed according to the modified neonatal KDIGO criteria. Serum electrolyte levels were recorded at the initiation of colistin treatment and 4-7 days after. RESULTS: A total of 47 premature neonates; with a median gestational age of 27 weeks and median weight of 970 g at birth were included in the study. The median postnatal day of colistin initiation was 24 days and mean duration of colistin therapy was 15.95 ± 3.70 days. Colistin was combined with aminoglycosides in 44.6% of the patients. Acute kidney injury was documented in 17.0% of premature neonates. (n = 6 for stage 1, n = 2 for stage 2, none of the patients had stage 3). In univariate analysis, gestational age and concomitant aminoglycoside use were associated with AKI development (OR, 0.446; 95% CI 0.238-0.832; p = 0.011 and OR, 1.324; 95% CI 1.023- 7.584; p = 0.024). Mean magnesium level significantly decreased after colistin treatment (1.70 ± 0.84 vs. 1.57 ± 0.29, p = 0.017) and the frequency of hypomagnesemia increased after colistin use (78.7% vs. 91.5%, p = 0.031). Frequency of elevated AST increased from 23.4% to 44.7% following colistin use (p = 0.031). CONCLUSIONS: Colistin-related side effects observed in premature neonates are not as common as in pediatric patients. Electrolyte imbalance is observed more frequently in this age group following colistin use. We suggest strict serum electrolyte level monitoring, especially magnesium, in premature neonates that are receiving colistin.

The epidemiologic and clinical features of viral agents among hospitalized children with lower respiratory tract infections.

AIM: Acute respiratory tract infections are among the most common infectious diseases worldwide. Respiratory viruses are the leading cause of respiratory infections in children. Herein, we aimed to determine the epidemiologic and clinical feautures of viral agents among hospitalized children with lower respiratory tract infections. MATERIAL AND METHODS: Nasopharyngeal swab specimens were obtained from the 422 patients hospitalized with a diagnosis of lower respiratory tract infections between December 2012 and December 2016. Multiplex reverse-transcription polymerase chain reaction was performed for the detection of viruses. RESULTS: Viral respiratory pathogens were detected in 311 patients (73.7%). In regard to respiratory virus subtypes, 103 patients (33.1%) had respiratory syncytial virus, 102 (32.7%) had human rhinovirus, 49 (15.7%) had multiple viruses, 15 (4.8%) had parainfluenzavirus, 13 (4.1%) had adenovirus, nine (2.8%) had human metapneumovirus, eight (2.5%) had human coronaviruses, six (1.9%) had bocavirus, five (1.6%) had influenza virus, and one patient (0.3%) had enterovirus. The median age was lower in patients with multiple viruses (p<0.001). The respiratory syncytial virus was more commonly detected in patients with a history of prematurity (p<0.001). Stridor was more common in other viruses including parainfluenza viruses (p<0.001). CONCLUSION: Respiratory viruses are the main causative agents of respiratory tract infections in children. Timely and accurate detection of viruses is necessary in terms of public health. The detection of respiratory viruses also contributes to epidemiologic results and vaccine studies.

Antibiotic resistance in childhood urinary tract infections: A single-center experience.

AIM: Urinary tract infections are the most common genitourinary tract disease in children, and inappropriate antibiotic and/or dose selection increase the likelihood of resistance. The aim of this study was to determine the prevalence of urinary tract infection pathogens, patterns of resistance to antibiotics, and empirical treatment options. MATERIAL AND METHODS: Between January 2013 and December 2017, urine culture and antibiogram results of pediatric patients aged 0 days to 16 years were analyzed retrospectively. Antibiotic susceptibilities were determined using disc diffusion according to methods of the Clinical and Laboratory Standards Institute. RESULTS: Of the 1326 children with culture growth, 1070 (80.6%) were female and 256 (19.3%) were male. The most common microorganism found was (1138, 85.8%) E. Coli, followed by Klebsiella spp. (71, 5.3%), Enterobacter spp. (44, 3.3%), and Proteus spp. (28, 2.1%). High frequency of resistance to ampicillin, ampicillin-sulbactam, amoxicillin-clavulanate, cefuroxime axetil, as TMP-SMX was detected in all microorganisms, whereas resistance to amikacin, meropenem, imipenem, ertapenem, fosfomycin, and nitrofurantoin was low. CONCLUSION: E. coli was the most common causative agent of urinary tract infections in childhood. High resistance to ampicillin, ampicillin-sulbactam, amoxicillin-clavulanate, cefuroxime axetil, and TMP-SMX was detected in all agents in our center.

Tuberculin skin test response in patients with juvenile idiopathic arthritis on anti-TNF therapy

Background/aim: The aim of this study is to evaluate the effect of biologic drugs on the tuberculin skin test in patients with juvenile idiopathic arthritis. Materials and methods: A total of 234 biologic drug-using juvenile idiopathic arthritis patients and 45 healthy controls were enrolled in the study. The tuberculin skin test results of the patients, which had been routinely provided during follow-up, were obtained from the patient files. Tuberculin skin test values of ≥5 mm were considered to be positive. Results: The mean diameter of tuberculin skin test induration was 4.99 ± 6.84 mm (IQR: 0­10 mm) and 7.83 ± 3.47 mm (IQR: 0­16 mm) in patients and controls, respectively (P < 0.05). Tuberculin skin test positivity (≥5 mm) was found in 96 (41%) and 38 (84.4%) of patients and controls, respectively (P < 0.001). There was no induration in 125 (53.4%) patients and 3 (6.6%) healthy controls, respectively (P < 0.001). Conclusion: In the patients with juvenile idiopathic arthritis who were using biologic drugs, tuberculin skin test induration was significantly lower compared to the control group. Tuberculin skin tests alone seem inadequate for recognition of latent tuberculosis in juvenile idiopathic arthritis patients on anti-TNF therapy.

Pediatricians' attitudes in management of acute otitis media and ear pain in Turkey.

OBJECTIVES: Acute otitis media (AOM) is predominantly a disease of childhood and one of the common reasons for prescribing antibiotics. Ear pain is the main symptom of AOM, with the result that parents frequently seek immediate medical assistance for their children. Antibiotic therapy for AOM does not provide symptomatic relief in the first 24 hours, and analgesics are commonly recommended for relieving the pain associated with AOM. The aims of the present study were to assess pediatricians' attitudes toward AOM and ear pain management in Turkey. METHODS: This multicenter descriptive questionnaire study was conducted in 20 centers from different geographic locations in Turkey, with 977 pediatricians, between June 2015 and December 2016. The questionnaire comprised 20 questions focusing on the pediatricians' sociodemographic variables, experiences, and treatment related to AOM and ear pain. RESULTS: Of the pediatricians, 58.2% were residents, 36.5% were specialists, and 4.3% were lecturers. Most participants were working in a university hospital (54.8%) or education and research hospital (32.2%). In general daily practice, the AOM diagnosis rates were between 6% and 20% in outpatient clinics, and 52.3% of the participants stated the patients complained about ear pain in pediatric clinics. The watchful waiting (WW) rate, as opposed to immediate antibiotic treatment, was 39.8% for all the pediatricians. The pediatric residents used the WW strategy less than the specialists and lecturers did (p = 0.004). The rates of the WW strategy were higher in outpatient clinics where AOM was commonly diagnosed (p < 0.001). The most common antibiotic prescribed for AOM was amoxicillin clavulanate (76.7%). The mean recommended treatment period for AOM was 9.3 ± 2.2 days. The choices for systemic ear pain treatment were acetaminophen (26.8%), ibuprofen (29.4%), and alternating between ibuprofen and acetaminophen (43.9%). Moreover, 34.6% of the participants recommended topical agents for otalgia. Topical agents were more commonly recommended by the pediatric residents than specialists or lecturers (p < 0.001). Finally, 58.3% of pediatricians had experiences of the parents' usage of a variety of herbal and folk remedies, such as breast milk or olive oil, for their children's ear pain. CONCLUSION: Amoxicillin clavulanate was the most frequently prescribed antibiotic for AOM. WW was approved by the pediatricians, and having more AOM patients was a significant factor in the physicians' choice of WW; nevertheless, the WW rate was poor. Implementation of educational intervention strategies will help pediatricians in improving their compliance with evidence-based guidelines for AOM treatment. Otalgia is taken seriously by parents and pediatricians, and otalgia treatment seems to be well accepted in Turkey for providing symptomatic relief and enhancing the patients' quality of life.

Determining the Independent Risk Factors and Mortality Rate of Nosocomial Infections in Pediatric Patients.

The objective of this study was to determine the rate, independent risk factors, and outcomes of healthcare-associated infections in pediatric patients. This study was performed between 2011 and 2014 in pediatric clinic and intensive care unit. 86 patients and 86 control subjects were included in the study. Of 86 patients with nosocomial infections (NIs), there were 100 NIs episodes and 90 culture growths. The median age was 32.0 months. The median duration of hospital stay of the patients was 30.0 days. The most frequent pathogens were Coagulase-negative Staphylococcus, Acinetobacter spp., Klebsiella spp., and Candida spp. Unconsciousness, prolonged hospitalization, transfusion, mechanical ventilation, use of central venous catheter, enteral feeding via a nasogastric tube, urinary catheter, and receiving carbapenems and glycopeptides were found to be significantly higher in NIs patients. Multivariate logistic regression analysis showed prolonged hospitalization, neutropenia, and use of central venous catheter and carbapenems as the independent risk factors for NIs. In the univariate analysis, unconsciousness, mechanical ventilation, enteral feeding, use of enteral feeding via a nasogastric tube, H2 receptor blockers, and port and urinary catheter were significantly associated with mortality. In the multiple logistic regression analysis, only mechanical ventilation was found as an independent predictor of mortality in patients with NIs.

Diagnostic role of inflammatory markers in pediatric Brucella arthritis.

BACKGROUND: As a multisystem infectious disease, there is an inflammation, which causes increase in acute phase reactants in brucellosis. The mean platelet volume (MPV), platelet distribution width (PDW), red cell distribution width (RDW), neutrophil to lymphocyte ratio (NLR) and platelet to lymphocyte ratio (PLR) have been identified as markers of inflammation. The present study aimed to evaluate diagnostic values of these biomarkers in brucella arthritis (BA). METHODS: The study included 64 children with BA and 66 healthy control subjects. Demographic features, joint involvement, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) and hematological variables were retrospectively recorded. In addition, results of synovial fluid and serum tube agglutination test for brucella together with treatment regimens were recorded. RESULTS: The mean age of the patients (53.1 % male) was 92.3 ± 41.2 months. The most commonly affected joint was ankle (53.1 %). Synovial fluid puncture-brucella agglutination test was positive in 22 (34.3 %) patients. Puncture culture was positive in 9 patients. Most of the patients (57.8 %) were treated with a combination of rifampicin plus sulfamethoxazole/trimethoprim and gentamicin. Significantly higher mean PDW, RDW, MPV, NLR and PLR values were found in children with BA compared to control subjects (p < 0.05). A positive correlation was found between MPV and NLR values (R (2) = 0.192, p < 0.001). CONCLUSION: Our findings indicated that NLR and PLR are indirect markers of inflammation that may be observed abnormally increased in children with brucella arthritis. Further longitudinal studies are needed to investigate this topic to establish the more clear associations.

Primary diffuse leptomeningeal gliomatosis mimicking tuberculous meningitis.

Primary diffuse leptomeningeal gliomatosis is a disease with an aggressive course that can result in death. To date, 82 cases have been reported. Here, the case of a 3-year-old male patient presenting with strabismus, headache, and restlessness is reported. Physical examination revealed paralysis of the left abducens nerve, neck stiffness, and bilateral papilledema. Tuberculous meningitis was tentatively diagnosed, and antituberculosis treatment was initiated when cranial imaging revealed contrast enhancement around the basal cistern. Craniocervical magnetic resonance imaging (MRI) was performed when there was no response to treatment, and it revealed diffuse leptomeningeal contrast enhancement around the basilar cistern, in the supratentorial and infratentorial compartments, and in the spinal region. Primary diffuse leptomeningeal gliomatosis was diagnosed by a meningeal biopsy.

A case of oculoglandular tularemia resistant to medical treatment.

Tularemia is a zoonotic disease of the northern hemisphere. Oculoglandular tularemia is the rarest form, comprising 1.4-4.2% of all cases. We present a patient with oculoglandular tularemia that did not respond to gentamicin to demonstrate the need for prolonged antimicrobial treatment and surgical intervention.

Ultra-high dose of intra-amniotic or direct fetal intramuscular betamethasone for lung maturation in the preterm goat model.

OBJECTIVE: To evaluate the effects of intra-amniotic (IA) and fetal injections of a single ultra-high dose of betamethasone (BM) 48 h before preterm delivery on neonatal pulmonary function, using an experimental goat model. STUDY DESIGN: Eighteen date-mated singleton pregnant Hair goats were randomized into four groups. At gestational day 118 (alveolar phase, term 150-155 days) after obtaining a sample of amniotic fluid, fetuses in group 1 (n=5) received 8 mg/kg IA BM, and in group 2 (n=5) 4 mg/kg fetal IM BM. In group 3 (n=4) (0.3mg/kg/day) maternal BM was administered at day 118 and 119 with a 24h interval; control fetuses (n=4) received 1 mL/kg of IA saline at day 118. At gestational day 120, after obtaining second sample of amniotic fluids 18 kids were delivered by preterm cesarean section, entubated, weighed, and mechanically ventilated for 15 min. Arterial blood gas samples and deflation/inflation lung pressure-volume measurements were obtained. After sacrifice, lungs were removed, weighed, gross examined and processed for further histological and immunohistochemical (IHC) evaluations. On hematoxylin and eosin (HE) stained slides, presence and severity of lung emphysema was evaluated; slides stained for surfactant proteins, and caspases were used for semi-quantitative evaluation of lung maturation. Kruskal-Wallis, Mann-Whitney, Wilcoxon signed rank, and chi-square tests were used for comparisons. RESULTS: IA BM was associated with increased number of stillbirths (60% vs. 0% in control) (p=0.06) and emphysematous changes. Bodyweight-adjusted pressure-volume measurements were improved after maternal, but not IA or fetal, BM (p=0.06). Following mechanical ventilation, arterial blood gas parameters did not significantly alter across maternal and fetal administrations. However, pH was significantly lower (p<0.05) and carbon dioxide partial pressure was higher (p<0.05) in the control group, indicating hypercapnic acidemia in non-treated pregnancies. None of the treatments induced measurable alterations in amniotic fluid lecithin/sphingomyelin (L/S) values. IA and fetal routes were associated with decreased surfactant protein expressions and increased apoptotic activity in alveolar and bronchio-alveolar epithelial cells. CONCLUSION: Ultra-high dose IA and fetal IM BM is not superior to the standard dose and maternal way of administration in our experimental design.

Prevalence of metabolic syndrome in obese children and adolescents using three different criteria and evaluation of risk factors.

OBJECTIVE: To compare the prevalence of the metabolic syndrome (MS) in Turkish obese children and adolescents by using three different definitions and to assess the risk factors through a retrospective evaluation of anthropometric and laboratory parameters. METHODS: Sixty hundred and fourteen obese patients (307 male, 307 female; mean age: 11.3±2.5 years) were included in the study. Medical history, physical examination, anthropometric measurements, results of biochemical and hormonal assays were obtained from the hospital records. MS was diagnosed according to the modified World Health Organization (WHO), Cook and the International Diabetes Federation (IDF) consensus criteria. RESULTS: The prevalence of MS was found to be 39%, 34% and 33% according to the modified WHO, Cook and the IDF consensus criteria, respectively. MS prevalence in patients aged 12-18 years was significantly higher than that in patients between 7 and 11 years of age (p<0.05). Pubertal patients had a significantly higher MS prevalence than the non-pubertal cases (p<0.05). MS prevalence was also significantly higher in children who had a family history of heart disease, diabetes, obesity and hypertension as well as in those who had not been breast-fed (p<0.05). CONCLUSION: The use of the modified WHO criteria was found to result in a slightly higher prevalence rate for MS as compared to the other criteria. The prevalence of MS in our study population was higher than that reported in most previous studies in Turkey. A positive family history, puberty and not being breastfed in infancy were shown to be significant risk factors for MS in childhood.