Case report: Thrombotic microangiopathy in pediatric multisystem inflammatory syndrome associated with COVID-19: a case series.

Introduction: This report provides insight into three distinct pediatric cases exhibiting a nexus between multisystem inflammatory syndrome in children (MIS-C) and thrombotic microangiopathy (TMA) triggered by COVID-19. The aim is to underscore the range of clinical presentations and the essentiality of early interventions.

Case Presentations: This report presents three cases aged 10 months, 7 years, and 3 years with persistent fever, diarrhea, nausea, and vomiting.

Sarcoid-like Uveitis with or without Tubulointerstitial Nephritis during COVID-19.

Purpose: To report sarcoid-like uveitis with or without tubulointerstitial nephritis (TIN) during coronavirus disease 2019 (COVID-19) and to discuss diagnostic evaluation and treatment.

Methods: Detailed information on the subject's demographics, medical history, ophthalmic examination findings, and laboratory results were obtained from medical records. Fluorescein angiography (FA) and indocyanine green angiography (ICGA) images were evaluated.

Could plasma based therapies still be considered in selected cases with atypical hemolytic uremic syndrome?

Background: Atypical hemolytic uremic syndrome (aHUS) occurs due to defective regulation of the alternative complement pathway (ACP) on vascular endothelial cells. Plasma based therapy (PT) was the mainstay of the treatment for aHUS for many years until the introduction of therapies targeting blockage of the complement system. The aim of this study was to evaluate patients with aHUS who had been treated with plasma based therapies alone.

Effectiveness of Canakinumab Treatment in Colchicine Resistant Familial Mediterranean Fever Cases.

Anti-interleukin 1 agents are used successfully in colchicine-resistant or intolerant Familial Mediterranean Fever (FMF) patients. Sixty-five patients with FMF who received canakinumab treatment for at least 6 months due to colchicine resistance or intolerance between 2016 and 2020 in our department were retrospectively analyzed. Canakinumab treatment was given subcutaneously every 4 weeks.

Differences and similarities of multisystem inflammatory syndrome in children, Kawasaki disease and macrophage activating syndrome due to systemic juvenile idiopathic arthritis: a comparative study.

To compare the clinical and laboratory findings of multisystem inflammatory syndrome in children (MIS-C), patients with Kawasaki disease (KD) and with macrophage activating syndrome due to systemic juvenile idiopathic arthritis (sJIA-MAS) on real-life data. Patients diagnosed with MIS-C, KD, and sJIA-MAS from 12 different centers in Turkey who were followed for at least 6 months were included in the study. Demographic, clinical, and laboratory findings of all patients were analyzed.

Ten-year trends in epidemiology and outcomes of pediatric kidney replacement therapy in Europe: data from the ESPN/ERA-EDTA Registry.

Background: For 10 consecutive years, the ESPN/ERA-EDTA Registry has included data on children with stage 5 chronic kidney disease (CKD 5) receiving kidney replacement therapy (KRT) in Europe. We examined trends in incidence and prevalence of KRT and patient survival.

Methods: We included all children aged <15 years starting KRT 2007-2016 in 22 European countries participating in the ESPN/ERA-EDTA Registry since 2007.

Tocilizumab for juvenile idiopathic arthritis: a single-center case series.

Background: Juvenile idiopathic arthritis (JIA) is the commonest chronic rheumatic disease among children. When not treated effectively, JIA can lead to functional disability, due to joint damage, along with long-term morbidities.

Objectives: To describe the use of tocilizumab therapy for 11 patients with polyarticular JIA (pJIA) and systemic JIA (sJIA) who presented inadequate response or were refractory to disease-modifying anti-rheumatic drugs (DMARDs) and/or other biological therapies; and to evaluate its benefits, safety and tolerability.

Value of renal pelvic diameter and urinary tract dilation classification in the prediction of urinary tract anomaly.

Background: The aim of this study was to identify the cut-offs of postnatal anteroposterior renal pelvic diameter (APRPD), according to the urinary tract dilation (UTD) classification system, to identify the predictors of final diagnosis of UTD and the need for surgery.

Methods: A total of 260 infants (336 renal units) with prenatally detected UTD were prospectively evaluated on serial ultrasonography by the same radiologist. Additional voiding cystourethrography and scintigraphy was done according to the clinical algorithm.

Factors that influenced undergoing renal replacement therapy and survival in children with acute kidney injury.

Aim: Acute kidney injury (AKI) is an important clinical condition that is associated with increased mortality and morbidity. This study was performed to identify the factors that influence AKI stage, undergoing renal replacement therapy (RRT) and mortality.

Methods: This study was retrospectively conducted on 219 children with AKI who had been referred to the paediatric nephrology division of Dr Sami Ulus Teaching Hospital during their inpatient treatment from 2008 to 2012.

Canakinumab treatment in children with familial Mediterranean fever: report from a single center.

Familial Mediterranean fever (FMF), the most common hereditary autoinflammatory disorder is characterized by recurrent episodes of fever, serositis, arthritis. The major long-term result is amyloidosis. Colchicine remains the principle of the treatment; it not only prevents the acute attacks but also prevents the long-term complications such as amyloidosis; 5-10% of the patients are unresponsive to treatment.

Publisher Correction: Evaluation of the level of dynamic thiol/disulphide homeostasis in adolescent patients with newly diagnosed primary hypertension.

Owing to an error in typesetting, the name of the author Atilla Halil Elhan was rendered wrongly. The original publication has now been corrected in this respect.

Evaluation of the level of dynamic thiol/disulphide homeostasis in adolescent patients with newly diagnosed primary hypertension.

Background: Thiol/disulphide homeostasis plays a critical role in numerous intracellular enzymatic pathways including antioxidant defense and detoxification. This study was designed to investigate the impact of thiol/disulfide homeostasis in adolescent patients with recently diagnosed primary hypertension (HT) using a novel and automated method.

Methods: Native thiol/disulphide levels were measured by a novel spectrophotometric method (Cobasc 501, Roche Diagnostics, Mannheim, Germany) in 30 patients with primary HT together with 30 healthy controls.

A novel assessment tool for clinical care of patients with autoinflammatory disease: juvenile autoinflammatory disease multidimensional assessment report.

Objectives: To develop and test a new multidimensional questionnaire for assessment of children with auto-inflammatory disease (AID) such as FMF, PFAPA, HIDS, TRAPS in standard clinical care.

Methods: The juvenile auto-inflammatory disease multidimensional assessment report (JAIMAR) includes 16 parent or patient-centered measures and four dimensions that assess functional status, pain, therapeutic compliance and health-related quality of life (physical, social, school, emotional status) with disease outcome. It is proposed for use as both a proxy-report and a patient self-report, with the suggested age range of 8-18 years for use as a self-report.

Crescentic glomerulonephritis in children: a single centre experience.

Background: Crescentic glomerulonephritis (CsGN) is characterized by crescents in 50% or more of glomeruli and clinically by a sudden and progressive decline in renal function.

Methods: We evaluated the etiology, clinical features, prognostic factors and long-term outcome of CsGN. Between January 2000 and December 2010, 45 children (26 girls, 19 boys) with biopsy-proven CsGN (>50% crescents) were investigated retrospectively.

Long-term prognosis of idiopathic nephrotic syndrome in children.

Background: To investigate the demographic, clinical and laboratory data of the children with idiopathic nephrotic syndrome (INS), and to determine prognostic factors that affect the clinical outcome of the patients.

Methods: Medical charts of 372 patients diagnosed to have INS and followed up at least 5 years between January 1990 and December 2008 were evaluated, respectively. After initial demographic, clinical and laboratory findings of the patients were documented, therapeutic protocols, prognosis and prognostic factors were investigated.

The relation between treatment and prognosis of childhood membranoproliferative glomerulonephritis.

Background: The prognostic factors, the outcome and the most favorable treatment regimen are not entirely known for children with membranoproliferative glomerulonephritis (MPGN). MPGN is a rarely observed disease more prevalent in adolescents, so we aimed to review the clinical and histological properties, treatments and the outcome of our patients who were diagnosed as MPGN.

Methods: Fifty-one children - diagnosed with MPGN - were selected from biopsy records in Dr.

A patient with Behçet's disease presenting with acute urinary retention.

Behçet's disease (BD) is a multisystemic inflammatory disorder of unknown etiology. Neurologic involvement is known to be the most devastating feature of BD. The frequency and types of neurologic involvement in the pediatric age group are not clear, and the available information is limited to case reports.

Acute peritoneal dialysis in the newborn period: a 7-year single-center experience at tertiary neonatal intensive care unit in Turkey.

Objective: To evaluate the underlying causes and outcomes of neonates who underwent acute peritoneal dialysis (APD).

Study Design: This report describes a 7-year experience with APD in 77 neonates.

Results: Underlying causes requiring APD were acute tubular necrosis (ATN; n = 53), inborn error of metabolism (n = 18), bilateral renal vein thrombosis (n = 3), obstructive uropathy (n = 2; posterior urethral valve and neurogenic bladder), and bilateral renal artery thrombosis (n = 1).