Browsing by Author "Arslan, Alev"

Now showing 1 - 11 of 11

Bone Mineral Density and Bone Metabolic Markers' Status in Children with Neurofibromatosis Type 1
(2017) Poyrazoglu, Hatice Gamze; Bas, Veysel Nijat; Arslan, Alev; Bastug, Funda; Canpolat, Mehmet; Per, Huseyin; Gumus, Hakan; Kumandas, Sefer; https://orcid.org/0000-0003-4444-0027; 28125404; V-1112-2019
Background: Neurofibromatosis type 1 (NF1) is a multisystem disorder characterized by progressive manifestations, which is inherited in an autosomal dominant manner. The majority of patients with NF1 experience a diffuse, significant reduction in bone mass over time, with osteoporosis, osteopenia in the absence of severe scoliosis, or gross bone deformities. This study aimed to determine the bone mineral density (BMD) status, evaluate bone metabolism, and to determine the relevant factors in children with NF1. Methods: The study population included 33 pediatric NF1 patients (20 males and 13 females). Bone metabolic markers, such as total calcium, phosphorus, magnesium, alkaline phosphatase, parathyroid hormone, and 25-OH vitamin D, the urinary calcium/creatine ratio were measured. In addition, BMD was measured at both the lumbar spine (LS) and the femoral neck in all the patients. Results: All the patients had a low 25-OH vitamin D level, but it was significantly lower in the females than in the males (p < 0.009). Overall, 18.2% of the patients had skeletal abnormalities. The lumbar Z-score was <= 2 in 21.2% of the patients, whereas the femoral neck Z-score was <= 2 in 9.1%. The urinary calcium/creatine ratio was significantly higher in the female than in the male patients (p < 0.027). In all, six patients had skeletal abnormalities. Conclusions: It is widely known that bone mineral metabolism markers and BMD are significantly affected in NF1 patients; however, the present study did not identify any effective parameters that could be used to predict skeletal abnormalities, or diagnose early osteoporosis and osteopenia in pediatric NF1 patients.
Cardiac effects of hemodialysis in children with chronic kidney disease
(2018) Noyan, Aytul; Arslan, Alev; Kucukosmanoglu, Osman; Ozbarlas, Nazan
Purpose: The aim of the study was to evaluate cardiac functions before and after hemodialysis in children with chronical renal failure. Materials and Methods: The study comprised 24 children undergoing hemodialysis more then six months. Conventional and tissue Doppler echocardiography was performed, NT-proBNP levels were measured before and after hemodialysis. Echocardiographic results were compared regard to hydration status which measured with body composition monitor and hypotension event during dialysis. Results: Myocardial performance indices which gained with tissue Doppler echo were high in 22 patient. Mitral E/A ratio significantly decreased after hemodialysis. NT-proBNP levels were high but no difference was determined after dialysis. Nine patient experienced hypotension but nonsignificant difference was detected regarding echocardiographic findings and NT-proBNP levels. Conclusion: Diastolic dysfunction is frequent in chronical renal failure. Tissue Doppler echocardiography and myocardial performance index supply a more proper evaluation of global and regional cardiac function in chronical renal failure due to less hydration affectability. NT-proBNP should be monitored for cardiac dysfunction in chronical renal failure. Body composition monitor should be used in children for setting the ultrafiltration volume.
Cardiac Function in Children After Kidney Transplantation
(2018) Arslan, Alev; Parmaksiz, Gonul; Noyan, Aytul; Caliskan, Kenan; Yildirim, Sedat; Haberal, Mehmet; 0000-0003-4444-0027; 0000-0003-2373-1837; 0000-0002-8767-5021; 0000-0002-5735-4315; 0000-0002-3462-7632; V-1112-2019; AAM-2935-2021; AAD-5713-2021; AAJ-7201-2021; AAF-4610-2019; AAJ-8097-2021
A Case of Idiopathic Pulmonary Hemosiderosis Presenting with Signs and Symptoms Mimicking Hemolytic Anemia
(2017) Dogruel, Dilek; Erbay, Ayse; Yazici, Nalan; Arslan, Alev; Bicen, Bermal Hasbay; https://orcid.org/0000-0003-4444-0027; 27918350; F-6136-2016; AAM-5138-2021; V-1112-2019
Idiopathic pulmonary hemosiderosis is primarily a disorder of childhood, which is characterized by hemoptysis, iron deficiency anemia, and diffuse parenchymal infiltrates on chest x-ray secondary to recurrent attacks of alveolar hemorrhage. It can be diagnosed by showing hemosiderin laden macrophages in bronchoalveolar lavage fluid after other specific causes of diffuse alveolar hemorrhage are definitely excluded. A 5-year-old male patient was admitted to our clinic with sudden-onset pallor during iron therapy given for anemia. While he was being investigated for clinical and laboratory signs mimicking hemolytic anemia, he developed cough and dyspnea. He had infiltrates on chest x-ray and scattered patchy infiltrates in both lungs on high-resolution computed tomography. Hemosiderin laden macrophages were identified in fasting gastric juice and bronchoalveolar lavage fluid. The patient was diagnosed with idiopathic pulmonary hemosiderosis and started corticosteroid therapy.
Combination of Two Different Homozygote Mutations in Pompe Disease
(2016) Arslan, Alev; Poyrazoglu, Hatice Gamze; Kiraz, Aslihan; Ozcan, Alper; Isik, Halid; Ergul, Ayse Betuel; Mungan, Neslihan Onenli; Streubel, Berthold; Ceylaner, Serdar; Torun, Yasemin Altuner; https://orcid.org/0000-0003-4444-0027; 26946079; V-1112-2019
Pompe disease (OMIM no 232300) is an autosomal recessive inherited metabolic disorder, caused by glycogen accumulation in the lysosome due to deficiency of the lysosomal acid 03B1-glucosidase enzyme. Here we report the case of an 8-month-old girl of consanguineous Turkish parents, who was diagnosed with the infantile form of Pompe disease. Two different uncommon homozygote mutations (c.32-13T>G homozygote and c.1856G>A homozygote) were detected. The patient had a more progressive clinical course than expected. We emphasize the rare combination of genetic mutations in this Turkish family with Pompe disease.
Diagnostic and management difficulties in congenitally long QT syndrome: a single centre experience
(2016) Arslan, Alev; Erdem, Sevcan; Kucukosmanoglu, Osman; Ozbarlas, Nazan
Purpose: Long QT Syndrome (LQTS) is characterized by prolonged ventricular repolarization and tendency to malignant tachyarrhythmia. We reported 16 patient diagnosed congenitally LQTS as a tertiary centre's 12 years experience. Material and Methods: Patients whom diagnosed as congenitally LQTS in Cukurova University Divison of Pediatric Cardiology between years 2001 to 2013 were included the study. Results: Sixteen patients (6 female, 12 male) were diagnosed as congenitally LQTS. Mean age of patients was 10 years (2.6-20 years), mean follow up period was 35 months (11-120 months). Mean corrected QT interval was measured 520 ms (470-590 ms). At the diagnosis nine of sixteen patients (56%) had syncope, convulsion or cardiac arrest history, and three of them were misdiagnosed as epilepsy and were treated with antiepileptic drugs as well. Conclusion: We want to underline the importance of electrocardiography monitoring at all family members and some patients who misdiagnosed as recurrent seizures.
Does abnormal ductus venosus pulsatility index at the first-trimester effect on adverse pregnancy outcomes?
(2020) Baran, Safak Yilmaz; Kalayci, Hakan; Durdag, Gulsen Dogan; Yetkinel, Selcuk; Arslan, Alev; Kilicdag, Esra Bulgan; 0000-0002-2165-9168; 0000-0002-5064-5267; 0000-0002-0942-9108; 0000-0003-4444-0027; 0000-0001-5874-7324; 32623067; AAL-1530-2021; AAI-9594-2021; AAK-8872-2021; V-1112-2019
Aim: The ductus venosus pulsatility index for veins (DV PIV) has become a popular marker of the first-trimester scan. The aim of this study is to search for any difference between groups with normal and abnormal DV PIV values in terms of adverse pregnancy outcomes. Methods: We retrospectively evaluated 556 women whose first-trimester scan was performed. The ductus venosus pulsatility indices were examined at singleton pregnancies between 11 and 14 weeks of gestation. Patients were categorized as Group-I with normal DV PIV (DV PIV >= 0.73, <= 1.22) and as Group-II with abnormal DV PIV. Group-II was subgrouped as Group-IIA which composed of patients with DV PIV < 0.73 and as Group-IIB with DV PIV > 1.22. Results: There were 451 subjects in Group-I and 105 subjects in Group-II (Group-IIA = 32 and Group-IIB 73). The comparisons between major groups revealed a statistically significant increase about miscarriage (p = 0.002), stillbirth (p < 0.001), small for gestational age (p = 0.033), low birth weight (p < 0.001), fetal growth restriction (p = 0.048), and major congenital heart defect (p=<0.001) in Group-II. This difference is mainly due to Group-IIB. There is no difference in preterm delivery, preeclampsia and gestational diabetes between Group I and II. Conclusion: Routinely monitoring DIV PIV as a first-trimester screening should provide valuable information regarding adverse pregnancy outcomes such as miscarriage, stillbirth, small for gestational age, low birth weight, fetal growth restriction and major congenital heart defect. (C) 2020 Elsevier Masson SAS. All rights reserved.
Effects of L-Thyroxine Treatment on Heart Functions in Infants with Congenital Hypothyroidism
(2017) Arslan, Alev; Bas, Veysel Nijat; Uytun, Salih; Poyrazoglu, Hatice Gamze; https://orcid.org/0000-0003-4444-0027; 28358714; V-1112-2019
Background: Impaired heart functions in newborns with hypothyroidism should be reversed by levothyroxine substitution therapy. The aim of the study was to investigate heart functions with congenital hypothroidism (CH) in newborns and changes after levothyroxine substitution therapy, measured with tissue Doppler echocardiography and conventional echocardiography. Methods: The study included 30 neonates with CH and 34 healthy controls. Echocardiography were performed at baseline, 2nd week and 6th month of therapy. Results: Heart systolic function was normal. Mitral E velocities and mitral E/A ratios were significantly lower in patients at baseline. Tei indices were significantly higher in patients and a significant negative correlation was detected between free thyroxine levels and Tei indices. When early and late post-treatment echocardiography findings are compared, a non-significant difference was detected. Conclusions: Neonates with CH may exhibit systolic and diastolic heart dysfunction, which can be reversed by early L-T4 substitution treatment. The Tei index index should be measured in addition to conventional echocardiography.
Evaluation of Carotid Intima-Media Thickness in Children with Migraine: A Marker of Subclinical Atherosclerosis
(2016) Poyrazoglu, Hatice Gamze; Vurdem, Umit Erkan; Arslan, Alev; Uytun, Salih; https://orcid.org/0000-0003-4444-0027; 27371188; V-1112-2019
Migraine is a commonly seen neurovascular disorder during childhood. Inflammation induced by the activation of cytokines and neuropeptides is implied in its pathophysiology. There is an association between inflammation and atherosclerosis in patients with migraine. In addition, there is a strong correlation between early atherosclerotic wall lesions and carotid intima-media thickness (CIMT). The study population consisted of 57 migraine patients aged 5-17 years, as well as 47 healthy children who served as the control group. Those migraine patients who were not receiving any medications at the interictal period were compared to healthy controls in terms of their measured lipid levels, thyroid function, vitamin B12 levels, serum iron levels, iron binding capacity, complete blood count, C-reactive protein (CRP) levels, and carotid intima-media thickness (CIMT) scores, which may comprise risk factors for atherosclerosis. When children in the migraine and control groups were compared in terms of those risk factors that are known to be related to vascular changes, no significant differences were found. However, a significant difference was detected in CIMT values (P < 0.05). Atherosclerosis commences in childhood, and there is a long period of time before the onset of ischemic symptoms occurs. In children with migraine, an evaluation of CIMT can be used as a non-invasive imaging modality to detect atherosclerosis, which develops in the context of chronic inflammation. In this way, measures to reduce morbidity and mortality, which may result from cardiovascular diseases, can be implemented.
Reversible cardiomyopathy-tachycardiomyopathy in children
(2019) Arslan, Alev; Erdogan, Ilkay; Varan, Birgul; Yılmaz, Mustafa; Ozin, Mehmet Bülent; Tokel, Niyazi Kursad; 31990473
Tachycardia-induced cardiomyopathy (tachycardiomyopathy) is defined by the presence of a sustained tachycardia that results in left ventricular systolic dysfunction. Restoration of cardiac function is dependent on the control of tachyarrhythmias. We report a series including ten children with tachycardia-induced cardiomyopathy with different etiologies. The medical records of patients with tachycardiomyopathy who were managed in a Pediatric Cardiology Clinic between the years of 2014-2017 were reviewed retrospectively. Ten children (3 female, 7 male) were diagnosed with tachycardiomyopathy. The median age of the patients was 12 years (range: 4-15.8). Five had atrial tachycardia, two had ventricular tachycardia, the others had Mahaim fiber tachycardia, permanent junctional reciprocating tachycardia and atrioventricular reentrant tachycardia. Seven patients had catheter ablation and three patients who had previous heart surgery were treated with antiarrhythmic drugs. Median ejection fraction was 33% (range: 10-48), median left ventricle end-diastolic diameter was 55 mm (range: 30-78). All showed complete recovery with median ejection fraction 60% (range: 55-78). Two patient with severe heart failure required extracorporeal membrane oxygenation support, one of them had ventricular assist device support but the device was removed after successful ablation. After two years this patient required permanent pacemaker implantation due to complete atrioventricular block. Tachycardia-induced cardiomyopathy is a rare and treatable cause of heart failure. Early recognition is critical, aggressive treatment aimed at controlling the arrhythmia results in symptom resolution and recovery of ventricular function.
Serum Fas and Fas Ligand levels in childhood acute lymphoblastic leukemias
(2019) Arslan, Alev; Antmen, Bulent
Purpose: The aim of this study was to investigate the Fas and Fas Ligand levels of cell membrane receptors that play a role in understanding the mechanism of apoptosis in childhood acute lymphoblastic leukemia (ALL). Materials and Methods: We investigated serum Fas and Fas Ligand levels by using ELISA method in childhood acute leukemias. Twenty-nine cases with acute lymphoblastic leukemia and twenty-seven healthy children included the study. We investigated serum Fas and Fas Ligand levels at the time of diagnosis from peripheral blood samples. Results: Serum Fas levels of patients were median 63 pg/mL (min 15- max 690 pg/mL) and in the control group were median 37 pg/mL (min 8- max 67 pg/mL). Fas Ligand levels of patients were median 0.18 ng/mL (min 0- max 2.1 ng/mL) and in the control group median 0.1 ng/mL (min 0- max 4 ng/mL). The comparison of the mean values of Fas levels in acute leukemia patients groups and control group have shown important difference as statistically, but Fas Ligand levels were similar. Fas levels in T-ALL patients according to immunophenotypes were statistically higher than B-ALL . The Fas levels of patients who had relapsed were statistically higher than patients in remission. Conclusion: Serum Fas levels could be a useful prognostic marker in ALL patients follow up.