Publications by authors named "Onder Kılıcaslan"

Background: The prevalence of meningococcal carriage and serogroup distribution is crucial for assessing the epidemiology of invasive meningococcal disease, forecasting outbreaks and formulating potential immunization strategies. Following the meningococcal carriage studies conducted in Turkey in 2016 and 2018, we planned to re-evaluate meningococcal carriage in children, adolescents and young adults during the COVID-19 pandemic period.

Methods: In the MENINGO-CARR-3 study, we collected nasopharyngeal samples from 1585 participants 0-24 years of age, across 9 different centers in Turkey.

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Obesity is a major nutritional problem with an increasing prevalence among children and adolescents. The () gene encodes the UDP-glucuronosyl transferase enzyme, converting the toxic form of bilirubin to a soluble, nontoxic form. There are yet to be studies on the evaluation of the variant types detected by next-generation sequencing (NGS) and their effects on bilirubin levels in nonsyndromic obese children.

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Article Synopsis
  • Vaccines have significantly reduced COVID-19 hospitalizations among adolescents in Turkey, evidenced by a decline in hospitalizations during the vaccination period compared to pre-vaccination.
  • The study revealed that while there were more total hospitalizations during the vaccination period, the proportion of vaccinated adolescents requiring hospitalization was lower, reflecting the effectiveness of the vaccine.
  • Additionally, breakthrough infections in vaccinated adolescents were generally milder and less severe compared to infections in unvaccinated peers, with many being asymptomatic.
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Monkeypox virus (MPXV) infection is a zoonotic disease characterized by smallpox-like rashes. It is endemic in Central and West Africa. The World Health Organization (WHO) declared the disease as an epidemic due to a significant increase in the number of reported cases, starting from Europe and spreading to other regions, particularly in certain areas, in May 2022.

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Background: We aimed to evaluate the effects of public health measures taken during the COVID-19 pandemic on respiratory viruses.

Methods: The study was conducted between February 1, 2021 and December 1, 2022. Patients aged 1 month to 18 years hospitalized for infectious diseases were tested for SARS-CoV-2 and respiratory viruses by multiplex PCR.

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Background: Severe acute respiratory syndrome coronavirus 2 (SARS CoV-2) has caused an infectious disease that affects multiple organs. Recently, the cardiological effects of the virus have also been striking. To the best of our knowledge, there are no SARS CoV-2 positive paediatric cases reported with sinus bradycardia in the literature.

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Alpha-lipoic acid is a widely used medication that does not need a prescription. Although it is safely used in adults, hitherto no safe dose for children has been reported, and there is no known antidote. The medical literature provides four reports of alpha-lipoic acid intoxication in the pediatric population to date.

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: To evaluate cases with Alport syndrome for laboratory, radiological, ophthalmological, auditory tests, cardiological and inherited thrombophilia risk. Laboratory findings, abdominal and urinary ultrasonography, ophthalmological and auditory tests and cardiological examination of 21 Alport syndrome suspicious cases were performed. Also, collagen type IV alpha three chain (COL4A3) gene, four chain (COL4A4) gene and five chain (COL4A5) genes were sequenced by next-generation sequencing system.

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Köker O, Yıldırmak ZY, Genç DB, Kılıçaslan Ö. Thrombotic thrombocytopenic purpura as a rare cause of anemia with thrombocytopenia in childhood: report of 2 cases. Turk J Pediatr 2019; 61: 418-423.

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Introduction: Reviewing the reasons for return visits within 24 hours is a very important method of determining possible problems of emergency health care. Several causes stay behind unscheduled emergency return visits. Therefore, identifying these factors is crucial to set strategies in order to decrease the number of unnecessary visits.

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