Publications by authors named "Esra Arslantas"

6 Publications

  • Page 1 of 1

Diagnosis, Management, and Challenges in Synchronous Bilateral Wilms Tumor in a Horseshoe Kidney: A Case Report.

J Pediatr Hematol Oncol 2021 Apr 21. Epub 2021 Apr 21.

Departments of Pediatric Hematology and Oncology Pediatric Surgery Pediatric Radiology, Basaksehir Cam and Sakura City Hospital, Istanbul, Turkey.

Horseshoe kidney (HK) refers to a congenital malformation that results from fusion of both the kidneys at one pole, and is the most common renal fusion defect with an incidence of 1 in 400 to 600 individuals. Synchronous bilateral development of Wilms tumor (WT) in an HK is extremely rare. Here, we present a case of synchronous bilateral WT in an HK in an 18-month-old girl. The patient received 12 weeks of preoperative chemotherapy followed by 2-step surgical resection including nephron-sparing surgery (NSS) in both kidneys and left nephrectomy because of positive surgical margin and adjuvant chemotherapy. The patient is still in remission and asymptomatic 6 months after the completion of treatment. In this report, we discuss the treatment modalities of synchronous bilaterally located WT in HK. We conclude that successful outcomes can be obtained with preoperative chemotherapy and NSS in such cases even in the presence of advanced disease and complex anatomic conditions. In addition, the deepest tumor point can be reached during NSS, but total nephrectomy should be considered regarding the possibility of microscopic residue.
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http://dx.doi.org/10.1097/MPH.0000000000002165DOI Listing
April 2021

Safety and efficacy of deferasirox in patients with transfusion-dependent thalassemia: A 4-year single-center experience.

Pediatr Hematol Oncol 2021 Mar 22:1-8. Epub 2021 Mar 22.

Pediatric Hematology Oncology, Kanuni Sultan Suleyman Training and Research Hospital, Istanbul, Turkey.

This study was organized to determine the efficacy and safety of deferasirox (DFX) in reducing the SF of patients with transfusion-dependent thalassemia (TDT). This is a retrospective, descriptive study of 101 transfusion- dependent patients with thalassemia major who were followed for 48 months. Twenty-nine patients who used an alternative chelator either alone or combined, who were not compliant to the treatment, changed the drug due to adverse reactions, and had multiple transfusions and did not complete 4 years of DFX use were excluded. A total 72 out of 101 patients completed the study. SF decreases were noted for the 6-12 and >18-year age groups, from a median of 1532 ng/mL to 1190 ng/mL, and from 1386 ng/mL to 1165 ng/mL, respectively (p > 0.05). The proportion of patients with SF concentrations >2000 ng/mL is decreased (29% at baseline decreased to 15% at the end of the study) during the 48 months. The median SF of those who used <30 mg/kg/day (n = 38) increased from 767 ng/mL to 1006 ng/mL, whereas the >30 mg/kg/day (n = 34) group's SF concentrations decreased from a median of 1575 ng/mL to 1209 ng/mL (p = 0.029). The decrease of median SF values for Syrian patients was statistically significant (p = 0.043). Most common adverse events were gastric irritation symptoms (19.4%). The total DFX discontinuation ratio was calculated as 9.7%. Although dosages between 25-30 mg/kg/day are adequate to stabilize SF concentrations higher dosages are needed to achieve a statistically significant decrease.
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http://dx.doi.org/10.1080/08880018.2021.1901809DOI Listing
March 2021

A Pediatric Case of Idiopathic Hypereosinophilia Preceeding Precursor B-cell Lymphoblastic Lymphoma of Nasopharynx.

J Pediatr Hematol Oncol 2020 04;42(3):248-249

Department of Pediatric Hematology and Oncology, Kanuni Sultan Suleyman Traning and Research Hospital.

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http://dx.doi.org/10.1097/MPH.0000000000001561DOI Listing
April 2020

Hemophagocytic Lymphohistiocytosis Associated With Visceral Leishmaniasis.

J Pediatr Hematol Oncol 2018 07;40(5):395

Pediatric Hematology and Oncology Department, Kanuni Sultan Süleyman Training and Research Hospital, Istanbul, Turkey.

This is the report of a 2-year-old boy who presented with fever, cytopenia, and splenomegaly. The patient was diagnosed with hemophagocytic lymphohistiocytosis (HLH) and treated with HLH-2004 protocol. Repeated bone marrow aspiration showed amastigotes on follow-up. In endemic countries, visceral leishmaniasis should be considered in the differential diagnosis to avoid chemotherapy toxicity.
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http://dx.doi.org/10.1097/MPH.0000000000001178DOI Listing
July 2018

A Rare Cause of Paraplegia: Myeloid Sarcoma

Turk J Haematol 2018 08 2;35(3):206-207. Epub 2018 Feb 2.

University of Health Sciences, Kanuni Sultan Süleyman Traning and Research Hospital, Clinic of Pediatric Hematology and Oncology, İstanbul, Turkey

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http://dx.doi.org/10.4274/tjh.2017.0423DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6110446PMC
August 2018

Changing face and clinical features of celiac disease in children.

Pediatr Int 2015 25;57(1):107-12. Epub 2014 Nov 25.

Department of Pediatric Gastroenterology, Hepatology and Nutrition, Bezmialem Vakif University, Istanbul, Turkey.

Background: The aim of this study was to analyze and compare the epidemiological and presenting features, clinical patterns, and complications of celiac disease (CD) in children.

Methods: The clinical charts of children with CD were retrospectively analyzed. Data for children who presented during the first time period (January 2005-October 2008; group 1) were compared to those of children who presented during the second time period (November 2008-April 2012; group 2).

Results: Group 1 and 2 consisted of 96 and 95 children, respectively. There were no differences in gender distribution, weight, or height z-scores between the two groups. Mean age at the time of diagnosis in group 2 (9.3 ± 4.5 years) was significantly higher than in group 1 (6.9 ± 3.9 years; P < 0.001). Non-classical presentation was more frequent in group 2 (P = 0.01). Associated disorders were observed in 49 children (25.7%) overall. There were significantly more children with type 1 diabetes mellitus in group 2 (P = 0.030). In all, 11 patients (5.8%) were overweight (either obese or at risk of obesity) at presentation. Isolated short stature was the presenting feature in 15 children (7.9%) overall, but was more frequently observed in group 2 (P = 0.003). In total, 15 patients (7.9%) presented with refractory iron deficiency anemia; the frequency was similar in both groups. Dual-energy X-ray absorptiometry was performed in 102 patients, and 82 (80.4%) had metabolic bone disease (MBD).

Conclusion: The mode of presentation and clinical features of CD in childhood continue to change. Of note, a substantial percentage of patients were overweight at presentation. MBD is a frequent complication, necessitating routine evaluation.
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http://dx.doi.org/10.1111/ped.12448DOI Listing
December 2016