30 results on '"Çomak, Elif"'
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2. Treatment of BK Polyomavirus-Associated Nephropathy in Paediatric Kidney Transplant Recipients: Leflunomide Versus Cidofovir.
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Aksoy, Gülşah Kaya, Erkan, Mine, Koyun, Mustafa, Çomak, Elif, Toru, Havva Serap, Mutlu, Derya, Akkaya, Bahar, and Akman, Sema
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- 2024
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3. The Role of Biofeedback Treatment in Children with Lower Urinary Tract Dysfunction
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ISIYEL, Emel, ÇOMAK, Elif, and ER, İlkay
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General and Internal Medicine ,Biyofeedback tedavisi,Standart tedavi,Alt üriner sistem disfonksiyonu ,biofeedback treatment,Lower urinary tract dysfunction,standard urotherapy ,Genel ve Dahili Tıp - Abstract
Amaç: Alt üriner sistem disfonksiyonu geniş spektrumlu bir tanıdır ve Uluslarararası Çocuk İşeme Topluluğuna göre aşırı aktif mesane, işemeyi erteleme, az aktif mesane, seyrek işeme, vajinal reflü, mesane boynu disfonksiyonu ve kıkırdama inkontinansını içerir.Biyofeedback kolay uygulanabilen, girişimsel olmayan ve normal mesane ve barsak fonksiyonlarının sağlanmasında pelvik duvar kaslarını aktive etmek için kullanılan bir tedavi yöntemidir. Bu çalışmada alt üriner sistem disfonksiyonu olan çocuklarda biyofeedback tedavisinin etkinliğinin değerlendirilmesi amaçlanmıştır. Gereç ve Yöntemler: Çalışmaya alt üriner sistem disfonksiyonu tanısı alan ve standart tedaviye yanıt vermeyen 29 hasta dahil edildi. Bu hastalara 8 hafta süre ile biyofeedback tedavisi uygulandı. Bulgular: Animasyon biofeedback tedavisinden sonra 13 hastada (%44.8) gündüz, iki (%6.8) hastada gece kaçırma şikayetleri düzeldi. Kabızlığı olan 5 hastada tamamen düzelme olmasına rağmen enkoprezisi olan hastalarda düzelme olmadı. Altı hastanın (% 20.7) şikayetlerinde azalma oldu ancak tam düzelme olmadı. Biofeedback tedavisi öncesi 16.19±7.69 olan ortalama işeme bozuklukları semptom skoru, tedavi sonrası 9.52±6.4’e geriledi ve istatistiksel olarak anlamlı bir fark (p, Objective: Lower urinary tract dysfunction is a wide clinical spectrum and according to the International Children’s Continence Society, lower urinary tract dysfunction contains overactive bladder, voiding postponement, underactive bladder, infrequent voiding, extraordinary daytime only urinary frequency, vaginal reflux, bladder neck dysfunction, and giggle incontinence. Biofeedback is a non-invasive therapy that can be applied easily and aims to activate relevant pelvic wall muscles for normal bowel and bladder functions. This study aimed to evaluate the efficacy of biofeedback treatment in children with lower urinary tract dysfunction.Material and Methods: Twenty-nine patients who were diagnosed with lower urinary tract dysfunction and did not respond to standard therapy were included in the study. Biofeedback therapy was applied to these patients for 8 weeks. Results: After animation biofeedback treatment, daytime symptoms improved in 13 patients (44.8%), and nighttime enuresis improved in two (6.8%) patients. Although 5 patients with constipation completely improved, there was no improvement in patients with encopresis. There was a decrease but not a complete improvement in complaints of six patients (20.7%). Mean urinary incontinence symptom score which was 16.19±7.69 before biofeedback treatment decreased to 9.52±6.4 after the treatment, with a statistically significant difference (p
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- 2021
4. Outcome of diacylglycerol kinase epsilon–mediated hemolytic uremic syndrome in an infant
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Koyun, Mustafa, primary, Kaya Aksoy, Gülşah, additional, Çomak, Elif, additional, Özaltın, Fatih, additional, and Akman, Sema, additional
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- 2021
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5. Could plasma based therapies still be considered in selected cases with atypical hemolytic uremic syndrome?
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Taşdemir, Mehmet, Özlü, Sare Gülfem; Gülhan, Bora; Aydoğ, Özlem; Atayar, Emine; Delibaş, Ali; Parmaksız, Gönül; Özdoğan, Elif Bahat; Çomak, Elif; Acar, Banu; Özçakar, Zeynep Birsin; Topaloğlu, Rezan; Söylemezoğlu, Oğuz; Özaltın, Fatih, School of Medicine, Taşdemir, Mehmet, Özlü, Sare Gülfem; Gülhan, Bora; Aydoğ, Özlem; Atayar, Emine; Delibaş, Ali; Parmaksız, Gönül; Özdoğan, Elif Bahat; Çomak, Elif; Acar, Banu; Özçakar, Zeynep Birsin; Topaloğlu, Rezan; Söylemezoğlu, Oğuz; Özaltın, Fatih, and School of Medicine
- Abstract
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. Methods: the outcomes of seven genetically confirmed aHUS patients (2 girls, 5 males) were evaluated by means of clinical presentation, response to plasma therapy, course of the disease during the follow-up period and last status. Results: the median age of the patients at admission was 6.7 years (IQR 0.7-7.8). Three patients received plasma exchange therapy and the other four patients were treated with plasma infusions. One patient was lost to follow-up after one year; the median duration of follow-up for other patients was 3.7 years (IQR 2.7-6.5). During the follow up, two patients from our historical records when complement blocking therapies had not been in clinical use yet in Turkey, underwent kidney transplantation. One transplant patient experienced an acute rejection episode without graft loss. The remaining five patients had a glomerular filtration rate of more than 90 ml/min./1.73 m(2) at the last visit. Conclusion: although we had a relatively small patient population, our findings indicate that PT might still be considered in selected patients particularly in countries where complement blocking therapies are difficult to reach due to their unavailability or costs that are not covered by the health care systems., Hacettepe University Scientific Research and Development Office
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- 2021
6. Clinical features of children with chronic non-bacterial osteomyelitis: A multicenter retrospective case series from Turkey
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Açarı, Ceyhun, primary, Çomak, Elif, additional, Çekiç, Şükrü, additional, Türkuçar, Serkan, additional, Adıgüzel Dündar, Hatice, additional, Şebnem Kılıç, Sara, additional, Akman, Sema, additional, Makay, Balahan, additional, and Erbil Ünsal, Şevket, additional
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- 2021
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7. Could plasma based therapies still be considered in selected cases with atypical hemolytic uremic syndrome?
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Özlü, Sare Gülfem, primary, Gülhan, Bora, additional, Aydoğ, Özlem, additional, Atayar, Emine, additional, Delibaş, Ali, additional, Parmaksız, Gönül, additional, Özdoğan, Elif Bahat, additional, Çomak, Elif, additional, Taşdemir, Mehmet, additional, Acar, Banu, additional, Özçakar, Zeynep Birsin, additional, Topaloğlu, Rezan, additional, Söylemezoğlu, Oğuz, additional, and Özaltın, Fatih, additional
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- 2021
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8. CLINICAL FEATURES IN TURKISH CHILDREN WITH CHRONIC NON-BACTERIAL OSTEOMYELITIS
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AKMAN, SEMA, Kilic, Sara Sebnem, Dundar, Hatice Adiguzel, ÇOMAK, ELİF, Acari, Ceyhun, ÇEKİÇ, ŞÜKRÜ, Turkucar, Serkan, and Unsal, Erbil
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- 2019
9. A nationwide retrospective study in Turkish children with nephrocalcinosis.
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DÖVEN, Serra Sürmeli, TÜLPAR, Sebahat, BAŞTUĞ, Funda, YILDIRIM, Zeynep Nagehan Yürük, YILMAZ, Esra Karabağ, ÇİÇEK, Neslihan, KÜÇÜK, Nuran, ÇOMAK, Elif, YAZICIOĞLU, Burcu, NALÇACIOĞLU, Hülya, DELIBAŞ, Ali, UYSAL, Berfin, AĞBAŞ, Ayşe, GEMICI, Atilla, GÜNAY, Neslihan, ERTAN, Pelin, BIYIKLI, Neşe, HACIHAMDIOĞLU, Duygu Övünç, ELMACI, Ahmet Midhat, and ATIKEL, Yeşim Özdemir
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CHILD patients ,KIDNEY calcification ,KIDNEY tubules ,PEDIATRIC nephrology ,GENETIC disorders ,MEDICAL records - Abstract
Background/aim: Nephrocalcinosis (NC) is defined as calcium deposition in the kidney parenchyma and tubules. This study aims to determine the etiology, risk factors, and follow-up results of patients with NC in Turkey. Materials and methods: Patients diagnosed with NC in the pediatric nephrology Department Units of 19 centers from all geographical regions of Turkey over a 10-year period (2010–2019) were included in the study. The medical records from the centers were reviewed and demographic data, admission complaints, medical history, systemic and genetic disorders, risk factors for NC, treatment details, and presence of NC after one-year follow-up, were recorded retrospectively. Results: The study sample included 195 patients (88 females, 107 males). The mean age at diagnosis was 39.44 ± 47.25 (0.5–208) months; 82/190 patients (43.2%) were diagnosed incidentally; 46/195 patients (23.6%) had an underlying disease; idiopathic hypercalciuria was detected in 75/195 (38.4%) patients. The most common systemic diseases were distal renal tubular acidosis in 11/46 patients (23.9%), primary hyperoxaluria in 9/46 patients (19.6%) and Bartter syndrome in 7/46 patients (15.3%). After one year of follow-up, NC resolved in 56/159 patients (35.2%) and they all did not have an underlying systemic disease. Conclusion: The most common presentation of NC was incidental. Distal renal tubular acidosis and primary hyperoxaluria were the main systemic diseases leading to NC, while hypercalciuria was the most common metabolic risk factor. Nephrocalcinosis was found to remain in most of the patients at a one-year follow-up. It may resolve particularly in patients with no underlying systemic disease. [ABSTRACT FROM AUTHOR]
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- 2021
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10. P234 Clinical and histopathological prognostic factors affecting the renal outcomes in childhood anca associıated vasculitis
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DÜŞÜNSEL, RUHAN, ÖZÇELİK, GÜL, ADROVİÇ, AMRA, KASAPÇOPUR, ÖZGÜR, ÜNSAL, ŞEVKET ERBİL, ALPAY, HARİKA, ORHAN, DİCLEHAN, ÖZEN, SEZA, TOPALOĞLU, REZAN, SÖNMEZ, HAFİZE EMİNE, ŞAHİN, SEZGİN, ÖZAĞARI, AYŞİM, TORUN BAYRAM, MERAL, ÇİÇEK, RÜMEYSA, ÇAKICI, EVRİM, ÇOMAK, ELİF, BARUT, KENAN, ŞAHİN, NİHAL, GÖKÇE, İBRAHİM, DÜZOVA, ALİ, BİLGİNER, YELDA, AÇARI, CEYHUN, MELEK, ENGİN, DEMİRCİOĞLU KILIÇ, BELTİNGE, ÖZDEL, SEMANUR, and BAKKALOĞLU EZGÜ, SEVCAN AZİME
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- 2018
11. İdrar Yolu Enfeksiyonu Takipli Hasta ve Ebeveynlerinin Hastalıkları ile İlgili Verilen Sağlık Eğitimi Öncesi ve Sonrası Bilgi, Tutum ve Davranışlarının Karşılaştırılması
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BOZKURT, Meltem, AKMAN, Sema, GEMİCİ, Atilla, ÇOMAK, Elif, and KOYUN, Mustafa
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İdrar yolu enfeksiyonu,eğitim,hemşire - Abstract
Amaç: Bu çalışma Akdeniz Üniversitesi Tıp Fakültesi Çocuk Nefroloji BilimDalı polikliniğine Mart-Ağustos 2016 tarihleri arasında tekrarlayan idrar yoluenfeksiyonu nedeni ile başvuran çocuk hastalar ile birlikte ailelerine verilen sağlıkeğitiminin, öncesi ve sonrası çocuk ve ebeveynlerin bilgi, tutum ve davranışlarınaetkisinin karşılaştırılması amacıyla yapılmıştır.Metod: Çalışmaya, çocuk Nefroloji polikliniğinde tekrarlayan İYE saptanan,ürolojik anomalisi olmayan hastalar gönüllülük esasına göre dahil edildi. Tümçocuklara ve ailelerine eğitim öncesi ve sonrasında idrar yolu enfeksiyonubelirtilerini, nedenlerini, korunma yollarını ve doğru idrar kültür örneği alınmasıhakkındaki bilgilerini değerlendirmeye yönelik çoktan seçmeli ve birden fazlaseçeneği olan, tamamı kapalı uçlu soru içeren 10 sorudan oluşan anket uygulandı.Tüm çocuklara ve ailelerine araştırmacı tarafından uzman görüşü alınarakhazırlanan eğitim rehberi doğrultusunda, idrar yolu enfeksiyonunu tanıma vekorunma yolları hakkında eğitim verildi.Bulgular: Araştırmaya dahil edilen 23 hastanın tamamı kız, yaş ortalaması 8.21±2.93 yıldı. On katılımcı (%43.5) lise mezunuydu.Eğitim sonrasında idrar yoluenfeksiyonunu tanıma, belirtilerini anlama ve korunma konusunda bilgi sahibiolma oranlarının belirgin arttığı görüldü. Eğitim öncesi dönemde sadece 7 kişi(%30.4) klozet kullanan çocukların ayaklarının yere değmesi gerektiğini bilirken,eğitim sonrası 23 hastanın tamamı biliyordu. Doğru idrar kültür alınmasını eğitimöncesi 14 kişi bilirken eğitim sonrası hepsi biliyordu.İYE den korunmak içintuvalet sonrası temizliğin önden arkaya doğru yıkayarak ve kurulayarak yapılmasıgerektiğini eğitim öncesi 18 kişi (%78,3) doğru yanıtlarken, eğitim sonrası 23(%100) kişi doğru yanıtladı. Kabızlığın idrar yolu enfeksiyonu nedeni olduğunueğitim öncesi 5 kişi (%21.6) bilirken eğitim sonrası 23 kişi (%100) biliyordu.Çişini uzun süre yapmayıp tutmanın idrar yolu enfeksiyonu nedeni olduğunueğitim öncesi 14 kişi (%60.2) bilirken, eğitim sonrası 23 kişi (%100) biliyordu.Sonuç: Tekrarlayan İYE tanısı ile poliklinik izleminde olan hastalara poliklinikmuayene şartlarında bilgilendirme yapılmasına rağmen, ailelerin idrar yoluenfeksiyonu belirtilerini tanıma, enfeksiyondan korunma konularındaki bilgi,tutum ve davranışlarının yetersiz olduğu görüldü. Sağlık eğitimi ile bu konudakibilgi, tutum ve davranışlar olumlu yönde değiştirilebilir. Özellikle bu tür hastalarıntakip ve tedavisinin yapıldığı kliniklerde ve polikliniklerde hasta eğitimisürekli olmalı, eğitim hemşireliğinin oluşturulmasına ve yaygınlaştırılmasınaönem verilmelidir.
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- 2017
12. Graft Survival in Preemptive Renal Transplantation in Children.
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Aksoy, Gülşah Kaya, Koyun, Mustafa, Çomak, Elif, and Akman, Sema
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HEMODIALYSIS patients ,HEART transplant recipients ,GRAFT survival ,KIDNEY transplantation ,GRAFT rejection ,BK virus ,OVERALL survival - Abstract
Objective: Preemptive kidney transplantation (PKT) is an effective treatment modality that avoids the complications related to dialysis. However, the effect of PKT on graft survival remains controversial. This study aimed to compare graft survival in pediatric recipients of PKT with that of non-PKT recipients. Materials and Methods: The medical records of pediatric kidney transplant recipients between 2005 and 2017 were retrospectively reviewed. We compared glomerular filtration rate, graft, and patient survival rates receiving PKT versus non-PKT. Results: A total of 230 pediatric recipients were included in the study. The majority of recipients were boys (60.4%) who received a living donor kidney (70.8%). In the study group, 46.1% of the patients underwent PKT; 27.8% were on peritoneal dialysis and 26.1% on hemodialysis in the pre-transplant period. The rates of antibody-mediated rejection and BK virus nephropathy were similar between recipients with PKT and non-PKT (p=1.000 and 0.643, respectively). The 3-year graft and patient survival rates were similar between patients with PKT and non-PKT (95.2% vs 93.5%; p=0.776 and 98.1% vs 97.5%; p=1.000, respectively). The dialysis duration, rejection within 6 months after transplantation, and antibody-mediated rejection were independent risk factors for graft failure [Odds ratio (OR) 1.013; 95% confidence interval (CI) 0.992-1.034; p=0.031, OR 0.068; 95% CI 0.105-0.326; p=0.025, and OR 6.029; 95% CI 2.018-7.106; p<0.001]. Conclusion: Evaluation of graft and patient survival shows that PKT is a safe and effective renal replacement treatment option. [ABSTRACT FROM AUTHOR]
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- 2021
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13. Viral seroprevalence in pediatric kidney transplant recipients.
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Aksoy, Gülşah Kaya, Sağlık, İmran, Velipaşaoğlu, Sevtap, Öngüt, Gözde, Çomak, Elif, Koyun, Mustafa, and Akman, Sema
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CHICKENPOX ,CHRONIC kidney failure ,CONFIDENCE intervals ,CYTOMEGALOVIRUS diseases ,CYTOMEGALOVIRUSES ,EPSTEIN-Barr virus ,EPSTEIN-Barr virus diseases ,HEMODIALYSIS ,HEPATITIS A ,HEPATITIS B ,HEPATITIS viruses ,KIDNEY transplantation ,MEASLES ,MEDICAL screening ,MUMPS ,PERITONEAL dialysis ,RESEARCH ,RUBELLA ,SERODIAGNOSIS ,TRANSPLANTATION of organs, tissues, etc. ,VIRAL antibodies ,VIRAL vaccines ,VIRUS diseases ,RETROSPECTIVE studies ,SEROPREVALENCE ,DESCRIPTIVE statistics ,ODDS ratio - Abstract
Copyright of Türk Pediatri Arşivi is the property of Aves Yayincilik Ltd. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2020
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14. A Rare Complication of Renal Transplantation: Spontaneous Allograft Rupture.
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Gemici, Atilla, Aksoy, Gülşah Kaya, Çomak, Elif, Koyun, Mustafa, and Akman, Sema
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KIDNEY transplant complications ,HOMOGRAFTS ,GRAFT survival - Abstract
Spontaneous allograft rupture (SAR) is very rare in the posttransplant period. It is a life-threatening complication that affects the survival of the graft. It is associated with high rates of graft loss. SAR is most commonly associated with immunological processes. Acute rejection is the most common cause of SAR. Here we report the case of a child who had SAR with life-threatening complications and his treatment and follow-up. [ABSTRACT FROM AUTHOR]
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- 2020
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15. KRONİK BÖBREK YETERSİZLİKLİ ÇOCUK OLGUDA GASTRİK MUKOZA KALSİFİKASYONU
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DOĞAN, Çağla, ÇOMAK, Elif, USLU GÖKÇEOĞLU, Arife, İŞLEK, Ali, SAYAR, Ersin, ELPEK, Gülsüm, KOYUN, Mustafa, and AKMAN, Sema
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Secondary hyperparathyroidism,soft tissue calcification,childhood renal failure,dialysis ,Health Care Sciences and Services ,Sekonder hiperparatiroidizm,yumuşak doku kalsifikasyonu,çocukluk dönemi böbrek yetmezliği,diyaliz ,Sağlık Bilimleri ve Hizmetleri - Abstract
In chronic hemodialysis patients, vascular and soft tissue calcifications occur secondary to hyperparathyroidism and disturbances in calcium- phosphate metabolism. In these patients, vascular calcifications significantly contribute to cardiovascular events, which is the main cause of morbidity and mortality. In this report, we present a pediatric patient on hemodialysis who developed gastric mucosa calcifications and review diagnosis and treatment of soft tissue calcifications., Kronik böbrek yetmezliği (KBY) tanısı ile diyaliz programında izlenen hastalarda vasküler ve diğer yumuşak doku kalsifikasyonları, sekonder hiperparatiroidizm ve kalsiyum-fosfor metabolizması bozukluklarına ikincil gelişir. Bu hastalarda damar duvarında meydana gelen kalsifikasyonlar, mortalite ve morbiditenin başlıca nedeni olan kardiyovasküler hastalıkların gelişimine önemli derecede katkıda bulunur.Bu yazıda, uzun süreli hemodiyaliz programında izlediğimiz ve gastrik mukozasında kalsifikasyon odakları saptadığımız bir hasta sunulmakta, KBY'li çocuk hastalarda gelişen yumuşak doku kalsifikasyonlarının tanı ve tedavisi gözden geçirilmektedir.
- Published
- 2012
16. DIAGNOSTIC EVALUATION OF MICROMETHOD ERYTHROCYTE SEDIMENTATION RATE IN PEDIATRIC INFECTIONS
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CANATAN, DURAN, EREN, ERDAL, ÇOMAK, ELİF, and ÖZTURK, MUSTAFA
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mikrometod sedimantasyon hýzý, pediatri, infeksiyon ,mikrometod sedimantasyon hýzý,pediatri,infeksiyon - Abstract
ÖZETAmaç: Yenidoğanlarda mikrometod sedimantasyon hızının sedimantasyon hızı ile korele olduğu bildirilmiştir. Çalışmalar özellikle yenidoğan enfeksiyonlarında çalışmalar yapılmıştır. Bazı çalışmalarda yenidoğanlarda sepsis taramalarında ve enfeskiyon varlığında daha değerli olduğu gösterilmiştir. Kolay, hızlı ve ekonomik bir yöntem olması nedeni ile, infeksiyonlarda mikrometod sedimantasyon hızının tanısal değerini ve diğer akut faz reaksiyon parametreleri ilişkilerini araştırmak amacı ile yapıldı.Gereç ve Yöntemler: Süleyman Demirel Üniversitesi Tıp fakültesi Pediatri AD na başvuran 31 hasta ve 24 sağlıklı çocuk çalışmaya alındı. Hasta grbununun 14'ünde alt solunum enfeksiyonu, 8'inde üst solunum yolu enfeksiyonu 6'sında idrar yolu enfeksiyonu ve 3'ünde gastroentestinal enfeksiyon vardı. Kontrol grubunun akut veya kronik enfeksiyonu ve ilaç kullanım öyküsü yoktu. Her iki grupta mikrosedimantasyon yanında, beyaz küre sayımı, sedimantasyon,CRP ve fibrinojen değerlerine bakıldı.Bulgular: Her iki grup arasında yaş (p=0.59) ve cinsiyet (p=0.18). yönünden istatistiksel olarak fark yoktu. Sedimantasyon hızı kontrol grubunda 11.755.87 mm/h (4-24) iken hasta grubunda 59.4826.42 mm/h (10-109) bulundu (p
- Published
- 2010
17. Prelingual başlangıçlı sendromik olmayan işitme kayıplı çocuklarda connexin 26 geni 35deIG mutasyonu sıklığı
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Çomak, Elif, İlhan, İnci Ergürhan, and Çocuk Sağlığı ve Hastalıkları Anabilim Dalı
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Çocuk Sağlığı ve Hastalıkları ,Child Health and Diseases - Abstract
vn. ÖZET işitme bozuklukları yaklaşık olarak 1000 çocuktan birini etkilemekte olup, vakaların yarısı genetik nedenlidir. Genetik nedenli işitme kayıplarının büyük çoğunluğu prelingual, sendromik olmayan sensörinöral tipte olup, % 80'î otozomal resesif olarak geçer. Son yıllarda sendromik olmayan işitme kaybına neden olan genlerin tesbit edilmesinde büyük ilerlemeler kaydedilmiştir. İşitme kaybı olan bir ailede connexin 26 genindeki (GJB2) mutasyonun tesbit edilmesi ile, otozomal resesif sendromik olmayan işitme kayıplarının yansından fazlasının GJB2 mutasyonlanndan kaynaklandığı ortaya çıkmıştır. Spesifik bir mutasyon olan 35deIG (aynı zamanda 30delG olarak da bilinir), kalıtsal ve sporadik vakaların büyük bir kısmından sorumludur. Bu çalışmanın amacı prelingual başlangıçtı sendromik olmayan işitme kaybı bulunan Türk çocuklarında 35delG mutasyonu sıklığını araştırmaktır. Sendromik olmayan işitme kaybı bulunan 153 çocuk (dört tanesi aynı aileden, 149 tanesi farklı ailelerden), araştırmaya dahil edildi. Afyon, Denizli ve İsparta illerinde bulunan devlete ait okullara devam etmekte olan bu çocuklar, yanlarında aile üyelerinden birisi varken, standart bir sorgulama ve fizik muayene ile değerlendirildi. Araştırmaya dahil edilen tüm çocukların ailelerinden ve onsekiz yaşından büyük olanların kendilerinden yazılı onay belgesi alındıktan sonra, kan örnekleri toplandı. Standart fenol-kloroform yöntemi kullanılarak DNA elde edildi. Tüm örneklerde PCR işlemi sonunda, Bsl I restriksiyon enzimi kullanılarak 35delG mutasyonu varlığı araştırıldı. 96Araştırma sonucunda 35delG mutasyonu için, toplam 27 çocuk (% 17.6) homozigot ve dokuz çocuk (% 5.8) heterozigot olarak bulundu. Alel frekansı % 20.5 idi (306 alelden 63 'ü pozitif). Her iki ebeveynin de işitme kayıplı olduğu sekiz aile vardı (asortatif evlilik). Bu ailelerin bütün çocukları da işitme kayıplıydı (non- complementary). Anne baba arasında akrabalık, probandlarm 52' sinde var, 101 'in de yoktu. Homozigot 35delG mutasyonu, anne-baba arasında akrabalık bulunan 41 çocuğun sekizinde (% 19.5), akrabalık bulunmayan 76 çocuğun 19'unda (% 25) vardı. Bu sonuçlar göstermiştir ki, Türk toplumunda prelingual sendromik olmayan işitme kaybı vakalarının önemli bir bölümünden 35delG mutasyonu sorumludur. Bölgeler arasında büyük farklılıklar olması nedeniyle bu sonuçların tüm ülkeyi yansıtmayacağı da ımutulmamalıdır. Türk toplumunda işitme kayıplı tüm bireylerin bu mutasyon açısından taranması, işitme kayıplarının genetik temeUerinin büyük oranda anlaşılmasına katkı sağlayacaktır. İşitme kayıplıların aile üyelerindeki taşıyıcılığın tesbiti de riskli gebeliklerin prenatal tanısına imkan verecektir. 97 vm. ingilizce özet `Frequency of the 35deIG mutation in the connexin 26 gene in children with prelingual non syndromic hearing loss` Congenital hearing loss occurs in approximately 1 in 1000 live births and 50 % of these cases are hereditary. Most cases of hereditary hearing loss are non syndromic sensorineural hering loss, with autosomal recessive forms accounting for 80 % of cases. Recently, significant progress has been made in identifying the genes for non- syndromic hearing loss. Since the mutation of connexin 26 (Cx 26) gene (GJB2) in a deaf family was identified, half of autosomal recessive non syndromic deafness was found to be caused by GJB2 mutations. One specific mutation, 35deIG (also known as 30delG), accounts for the majority of the Cx 26 mutant allele- it is the most common cause of inherited, sporadic congenital deafness. The aim of this prospective study is to investigate the 35delG mutation present in deaf students from Turkey. A total of 153 deaf children (149 unreleated and 4 releated) with prelingual, nonsyndromic, sensorineural deafness were included in this study. The children are from the residential schools for the deaf in the cities of Afyon, Denizli and Isparta. Children were interviewed and examined when at least one parent was present by using a standart questionnaire and examination form. Blood samples were obtained following informed consent from the parents and/or patients. Genomic DNA was extracted using conventional phenol-chloroform method. All samples were screened 98for the 35delG mutation, by PCR followed by digestion with Bsl I restriction enzyme. A total of 27 children (17.6%) were homozygotes for the 35delG mutation and 9 children (5.8%) were heterozygotes (35delG allele frequency 20.5% in total material of 306 allels). Both parents were deaf in 8 families (assortative marriages). These families, all children were also deaf (non-complementary). Parental consanguinity was noted in 52 and negative 101. Among the 41 probands whose parents were consanguineous, 8 were found to be homozygous for the 35delG (19.5%). However, 19 of the 76 probands whose parents were not consanguineous were homozygous for 35delG (25%). The results demonstrate a very high contribution of mutation 35delG to prelingual non-syndromic hearing loss in Turkey. It should be noted that these frequencies may not correctly reflect the whole population in Turkey, because over representation of a region where 35delG mutation is more or less common makes considerable changes. Our results indicate that screening for this mutation in all hearing-impaired in our population, would facilitate determination of the genetic basis of hearing loss in a significant proportion. This will in turn aid carrier determination in family members and prenatal diagnosis in pregnancies at risk. 99 120
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- 2004
18. Vitamin D Levels and Disease Activity in Children with Systemic Lupus Erythematosus
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Çomak, Elif, primary
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- 2014
- Full Text
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19. Association between vitamin D deficiency and disease activity in juvenile idiopathic arthritis.
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Çomak, Elif, Doğan, Çağla Serpil, Uslu-Gökçeoğlu, Arife, Akbaş, Halide, Özdem, Sabahat, Koyun, Mustafa, and Akman, Sema
- Abstract
Vitamin D has been shown to have immunomodulatory and anti-inflammatory properties in addition to its well-established role in the maintenance of mineral homeostasis and bone health. The aims of this study were to evaluate vitamin D status in patients with juvenile idiopathic arthritis (JIA), and also to examine whether there is an association between serum levels of 25-hydroxyvitamin D [25(OH)D] and disease activity in JIA. Children with JIA who had an outpatient visit between March and April 2011 were evaluated retrospectively. Clinical and laboratory findings and vitamin D levels were evaluated. Disease activity was calculated using JADAS-27. Serum vitamin D levels were measured using high-performance liquid chromatography (HPLC). A total of 47 patients, 29 (61.7%) of them girls, with a mean age of 9.3±3.9 years and a median follow-up period of 28 months, were included in the study. The mean serum vitamin D level of all patients was 17.7±11.6 ng/ ml. Vitamin D insufficiency (serum vitamin D: 15-20 ng/ml) and deficiency (serum vitamin D level <15 ng/ml) were found in 9 (19.1%) and 25 patients (53.2%), respectively. The vitamin D level was <20 ng/ml in 72.3% of the children. Only 13 patients (27.7%) were found to have adequate vitamin D levels (>20 ng/ml). There was a significant negative correlation between vitamin D levels and disease activity (p=0.01, r=-0,37). The mean JADAS-27 score was significantly higher in patients with 25(OH)D levels <15 ng/ml than in patients with 25(OH)D levels >15 ng/ml (p = 0.003). We suggest that vitamin D deficiency may be a possible modifiable risk factor affecting disease activity in JIA. [ABSTRACT FROM AUTHOR]
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- 2015
20. Association between vitamin D deficiency and disease activity in juvenile idiopathic arthritis.
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Çomak, Elif, Doğan, Çağla Serpil, Uslu-Gökçeoğlu, Arife, Akbaş, Halide, Özdem, Sabahat, Koyun, Mustafa, and Akman, Sema
- Abstract
Vitamin D has been shown to have immunomodulatory and anti-inflammatory properties in addition to its well-established role in the maintenance of mineral homeostasis and bone health. The aims of this study were to evaluate vitamin D status in patients with juvenile idiopathic arthritis (JIA), and also to examine whether there is an association between serum levels of 25-hydroxyvitamin D [25(OH)D] and disease activity in JIA. Children with JIA who had an outpatient visit between March and April 2011 were evaluated retrospectively. Clinical and laboratory findings and vitamin D levels were evaluated. Disease activity was calculated using JADAS-27. Serum vitamin D levels were measured using high-performance liquid chromatography (HPLC). A total of 47 patients, 29 (61.7%) of them girls, with a mean age of 9.3±3.9 years and a median follow-up period of 28 months, were included in the study. The mean serum vitamin D level of all patients was 17.7±11.6 ng/ ml. Vitamin D insufficiency (serum vitamin D: 15-20 ng/ml) and deficiency (serum vitamin D level <15 ng/ml) were found in 9 (19.1%) and 25 patients (53.2%), respectively. The vitamin D level was <20 ng/ml in 72.3% of the children. Only 13 patients (27.7%) were found to have adequate vitamin D levels (>20 ng/ml). There was a significant negative correlation between vitamin D levels and disease activity (p=0.01, r=-0,37). The mean JADAS-27 score was significantly higher in patients with 25(OH)D levels <15 ng/ml than in patients with 25(OH)D levels >15 ng/ml (p = 0.003). We suggest that vitamin D deficiency may be a possible modifiable risk factor affecting disease activity in JIA. [ABSTRACT FROM AUTHOR]
- Published
- 2014
21. Atypical hemolytic uremic syndrome due to factor H autoantibody.
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Uslu-Gökceoğlu, Arife, Doğan, Çagla Serpil, Çomak, Elif, Koyun, Mustafa, and Akman, Sema
- Abstract
Atypical hemolytic uremic syndrome (aHUS) is a disease caused by pathologies in the alternative complement system. The prevalence of aHUS is 10% of all aHUS cases. The subgroup of aHUS designated as DEAP (DEficiency of CFHR Proteins and CFH Autoantibody Positive)-HUS because of autoantibody to complement factor H (CFH) and CFH-related protein deficiency is seen very rarely, and the prevalence is 6% of all aHUS cases in the literature. We present here a female patient with DEAP-HUS. A 7.5-year-old girl with recurrent attacks of HUS had low C3 level. We initiated plasmapheresis treatment. After further analysis of the complement system, the result was compatible with DEAP-HUS, so we initiated immunosuppressive treatment. There were also family members with deficiency of CFHR-1 and CFHR-3, but they had no CFH autoantibody and no symptoms of HUS. In atypical cases of HUS, we should investigate complement status, especially for factor H autoantibody, for which treatment options differ from those of the other types of aHUS. [ABSTRACT FROM AUTHOR]
- Published
- 2013
22. Renal function and linear growth of children with nephrocalcinosis: a retrospective single-center study.
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Doğan, Çağla Serpil, Uslu-Gökçeoğlu, Arife, Çomak, Elif, Alimoğlu, Emel, Koyun, Mustafa, and Akman, Sema
- Abstract
The aim of this study was to analyze the etiology of nephrocalcinosis (NC) and whether it has any effect on growth and renal function in children. Forty-three children who were diagnosed with bilateral NC were studied retrospectively. Two neonates treated with furosemide and five premature infants were excluded from the study. The most common condition leading to NC was hereditary tubulopathies (50%). Data of 27 children who had a follow-up period of at least two years were examined in more detail. Of the 27 patients, the median age at first examination was 12 (range: 2-132) months and median follow-up time was 57 (range: 24-209) months. Thirteen of 27 (48.1%) patients had height standard deviation scores (hSDS) <-2 at presentation, and 6 (22.2%) patients who had normal glomerular function were still below -2 SDS at the last examination. Hypercalciuria was present in 25 (92.6%) patients at the first evaluation and in 6 (22.2%) patients at the last examination. The degree of NC worsened in 6 (22.2%), remained stable in 15 (55.5%) and decreased in 6 (22.2%) patients during the follow- up period. Chronic renal insufficiency (CRI) developed in 5 patients without there being any increase in the degree of NC. In conclusion, growth and renal function in these patients generally depend on the nature of the underlying disease but not the degree of NC. [ABSTRACT FROM AUTHOR]
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- 2013
23. Diagnostic evaluation of micromethod erythrocyte sedimentation rate in pediatric infections.
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Eren, Erdal, Çomak, Elif, Öztürk, Mustafa, and Canatan, Duran
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COMMUNICABLE diseases in children , *BLOOD sedimentation , *MEDICAL literature , *MEDICAL screening , *CONTROL groups , *DECISION making in clinical medicine , *DIAGNOSIS - Abstract
Introduction: Micromethod erythrocyte sedimentation rate (MESR) correlates classic Westergren method in newborn. In literature, MESR or microsedimentation rate has been studied especially newborn infections. Some of them showed that this test is more valuable in the sepsis screening and predicting the presence of infection in neonates .To investigate diagnostic evaluation of MESR in infections as its fast, easy, economic method and the relation between other acute phase reactant parameters. Material and Methods: A total 31 patient and 24 healthy children were admitted in this study in Suleyman Demirel University Medical Faculty Department of Pediatric. The patient group had various infections included 14 lower respiratory tract infection, 8 upper respiratory tract infection, 6 urinary tract infection, 3 gastrointestinal infection. The control group had no acute or chronic infections, no history taken any drugs. We performed same tests (Westergren sedimentation and MESR, CRP, WBC, fibrinogen) into two groups. There is no statistical significant between two groups as age and sex. Results: There was no statistically significant difference of age (p=0.59) and sex (p=0.18). between two groups. Sedimentation was 11.75±5.87 mm/h (4-24) in control group, 59.48±26.42 mm/h (10-109) in patient group (p<0.01). MSER was 14.08±5.35 mm/h (4-24) in control group, 32±11.31 (12-60) mm/h in patient group (p<0.01). Mean of sedimentation rate, MESR, CRP, WBC, and fibrinogen were significantly higher in patient group(p<0.01). Conclusion: In several studies, the MESR values higher than the macromethod at values but this difference is not of sufficient magnitude at the clinical decision level . In our study, MESR was as sensitive and specific as erythrocyte sedimentation rate in the patient group than control group. Also, MESR is more practical as it is a simple and quick test which does not need venous sample. [ABSTRACT FROM AUTHOR]
- Published
- 2011
24. Severe rhabdomyolysis and acute renal failure in an adolescent with hypothyroidism.
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Çomak, Elif, Koyun, Mustafa, Kılıçarslan-Akkaya, Bahar, Bircan, İffet, and Akman, Sema
- Abstract
Hypothyroidism has been reported rarely as the cause of rhabdomyolysis in adults and children. We present here a non-compliant adolescent with a diagnosis of hypothyroidism who developed rhabdomyolysis and acute renal failure with no additional predisposing factor. A 13-year-old girl with a previous history of hypothyroidism due to thyroid hypoplasia presented with generalized myalgia, malaise, vomiting, and oliguria lasting for three days. Neurological examination revealed bilateral marked weakness and tenderness of muscles of both lower and upper extremities. Urine had bloody appearance and urine analysis showed blood reaction with dipstick test, but there were no erythrocytes on microscopic examination. Serum creatine phosphokinase and myoglobin levels were elevated. Thyroid stimulating hormone (TSH) levels were high, and free thyroxine (T4) and triiodothyronine (T3) levels were low, compatible with uncontrolled hypothyroidism. Renal function tests showed acute renal failure. Other causes of rhabdomyolysis such as muscular trauma, drugs, toxins, infections, vigorous exercise, and electrolyte abnormalities were excluded. Hemodialysis was administered for 24 sessions. After L-thyroxine therapy, thyroid function tests normalized, muscle strength improved, serum muscle enzyme levels returned to normal levels, and renal function tests recovered. One must be aware that rhabdomyolysis may develop in a non-compliant patient with hypothyroidism. [ABSTRACT FROM AUTHOR]
- Published
- 2011
25. Prelingual başlangıçlı sendromik olmayan işitme kayıplı çocuklarda, connexin 26 (GJB2) geni 35delG mutasyonu sıklığı
- Author
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Çomak, Elif. 18462 aut, Ergürhan İlhan, İnci. ths 18463, and Süleyman Demirel Üniversitesi. Tıp Fakültesi. Çocuk Sağlığı ve Hastalıkları Anabilim Dalı. 10668
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Süleyman Demirel Üniversitesi - Abstract
İşitme bozuklukları yaklaşık olarak 1000 çocuktan birini etkilemekte olup, vakaların yarısı genetik nedenlidir. Genetik nedenli işitme kayıplarının büyük çoğunluğu prelingual, sendromik olmayan sensörinöral tipte olup, % 80'i otozomal resesif olarak geçer. Son yıllarda sendromik olmayan işitme kaybına neden olan genlerin tespit edilmesinde büyük ilerlemeler kaydedilmiştir. İşitme kaybı olan bir ailede connexin 26 genindeki (GJB2) mutasyonun tespit edilmesi ile otozomal resesif sendromik olmayan işitme kayıplarının yarısından fazlasının GJB2 mutasyonlarından kaynaklandığı ortaya çıkmıştır. Spesifik bir mutasyon olan 35delG (aynı zamanda 30delG olarak da bilinir), kalıtsal ve sporadik vakaların büyük bir kısmından sorumludur. Bu çalışmanın amacı prelingual başlangıçlı sendromik olmayan işitme kaybı bulunan Türk çocuklarında 35delG mutasyonu sıklığını araştırmaktır. Sendromik olmayan işitme kaybı bulunan 153 çocuk (dört tanesi ayni aileden, 149 tanesi farklı ailelerden), araştırmaya dahil edildi. Afyon, Denizli ve Isparta illerinde bulunan devlete ait okullara devam etmekte olan bu çocuklar, yanlarında aile üyelerinden birisi varken, standart bir sorgulama ve fizik muayene ile değerlendirildi. Araştırmaya dahil edilen tüm çocukların ailelerinden ve ons ekiz yaşından büyük olanların kendilerinden yazılı onay belgesi alındıktan sonra, kan örnekleri toplandı. Standart fenol-kloroform yöntemi kullanılarak DNA elde edildi. Tüm örneklerde PCR işlemi sonunda, BsI I restriksiyon enzimi kullanılarak 35delG mutasyonu varlığı araştırıldı. Araştırma sonucunda 35delG mutasyonu için toplam 27 çocuk (% 17.6) homozigot ve dokuz çocuk (% 5.8) heterozigot olarak bulundu. Alel frekansı % 20.5 idi (306 alelden 63'ü pozitif). Her iki ebeveynin de işitme kayıplı olduğu sekiz aile vardı (asortatif evlilik). Bu ailelerin bütün çocukları da işitme kayıplıydı (non-complementary). Anne baba arasında akrabalık, probandların 52'sinde var, 101'in de yoktu. Homozigot 35delG mutasyonu, anne-baba arasında akrabalık bulunan 41 çocuğun sekizinde (% 19.5), akrabalık bulunmayan 76 çocuğun 19'unda (% 25) vardı. Bu sonuçlar göstermiştir ki, Türk toplumunda prelingual sendromik olmayan işitme kaybı vakalarının önemli bir bölümünden 35delG mutasyonu sorumludur. Bölgeler arasında büyük farklılıklar olması nedeniyle bu sonuçları tüm ülkeyi yansıtmayacağı da unutulmamalıdır. Türk toplumunda işitme kayipli tüm bireylerin bu mutasyon açısından taranması, işitme kayıplarının genetik temellerinin büyük oranda anlaşılmasına katkı sağlayacaktır. İşitme kayıplıların aile üyelerindeki taşıyıcılığın tespiti de riskli gebeliklerin prenatal tanışma imkan verecektir., Congenital hearing loss occurs in approximately 1 in 1000 live births and 50 % of these cases are hereditary. Most cases of hereditary hearing loss are non syndromic sensorineural hearing loss, with autosomal recessiye forms accounting for 80% of cases. Recently, significant progress has been made in identifying the genes for non-syndromic hearing loss. Since the mutation of connexin 26 (Cx 26) gene (GJB2) in a deaf family was identified, half of autosomal recessiye non syndromic deafness was found to be caused by GJB2 mutations. One specific mutation, 35delG (also known as 30delG), accounts for the majority of the Cx 26 mutant allele-it is the most common cause of inherited, sporadic congemtal deafness. The aim of this prospective study is to investigate the 35delG mutation present in deaf students from Turkey. A total of 153 deaf children (149 unrelated and 4 related) with prelingual, nonsyndromic, sensorineural deafness were included in this study. The children are from the residential schools for the deaf in the cities of Afyon, Denizli and Isparta. Children were interviewed and examined when at least one parent was present by using a standart questionnaire and examination form. Blood samples were obtained following informed consent from the parents and/or patients. Genomic DNA was extracted using conventional phenol-chloroform method. All samples were screened for the 35deIG mutation by PCR followed by digestion with BsI I restriction enzyme. A total of 27 children (17.6%) were homozygotes for the 35deIG mutation and 9 children (5.8%) were heterozygotes (35de1G allele frequency 20.5% in total material of 306 allels). Both parents were deaf in 8 families (assortative marriages). These families, all children were also deaf (non-complementary). Parental consanguinity was noted in 52 and negative 101. Among the 41 probands whose parents were consanguineous, 8 were found to be homozygous for the 35delG (19.5%). However, 19 of the 76 probands whose parents were not consanguineous were homozygous for 35delG (25%). The results demonstrate a very high contribution of mutation 35delG to prelingual non-syndromic hearing loss in Turkey. It should be noted that these frequencies may not correctly reflect the whole population in Turkey, because over representation of a region where 35deIG mutation is more or less common makes considerable changes. Our results indicate that screening for this mutation in all hearing-impaired in our population, would facilitate determination of the genetic basis of hearing loss in a significant proportion. This will in turn aid carrier determination in family members and prenatal diagnosis in pregnancies at risk., Tez (Tıpta Uzmanlık) - Süleyman Demirel Üniversitesi, Tıp Fakültesi, Çocuk Sağlığı ve Hastalıkları Anabilim Dalı, 2004., Kaynakça var.
26. Could plasma based therapies still be considered in selected cases with atypical hemolytic uremic syndrome?
- Author
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Sare Gülfem Özlü, Bora Gülhan, Özlem Aydoğ, Emine Atayar, Ali Delibaş, Gönül Parmaksız, Elif Bahat Özdoğan, Elif Çomak, Mehmet Taşdemir, Banu Acar, Zeynep Birsin Özçakar, Rezan Topaloğlu, Oğuz Söylemezoğlu, Fatih Özaltın, Taşdemir, Mehmet, Özlü, Sare Gülfem, Gülhan, Bora, Aydoğ, Özlem, Atayar, Emine, Delibaş, Ali, Parmaksız, Gönül, Özdoğan, Elif Bahat, Çomak, Elif, Acar, Banu, Özçakar, Zeynep Birsin, Topaloğlu, Rezan, Söylemezoğlu, Oğuz, Özaltın, Fatih, and School of Medicine
- Subjects
Male ,Plasma Exchange ,Atypical hemolytic uremic syndrome ,Treatment ,Plasma infusion ,Plasma exchange ,Outcome ,Endothelial Cells ,Infant ,Antibodies, Monoclonal, Humanized ,Pediatrics ,Kidney Transplantation ,Child, Preschool ,Pediatrics, Perinatology and Child Health ,Humans ,Female ,Child ,Atypical Hemolytic Uremic Syndrome - Abstract
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. Methods: the outcomes of seven genetically confirmed aHUS patients (2 girls, 5 males) were evaluated by means of clinical presentation, response to plasma therapy, course of the disease during the follow-up period and last status. Results: the median age of the patients at admission was 6.7 years (IQR 0.7-7.8). Three patients received plasma exchange therapy and the other four patients were treated with plasma infusions. One patient was lost to follow-up after one year; the median duration of follow-up for other patients was 3.7 years (IQR 2.7-6.5). During the follow up, two patients from our historical records when complement blocking therapies had not been in clinical use yet in Turkey, underwent kidney transplantation. One transplant patient experienced an acute rejection episode without graft loss. The remaining five patients had a glomerular filtration rate of more than 90 ml/min./1.73 m(2) at the last visit. Conclusion: although we had a relatively small patient population, our findings indicate that PT might still be considered in selected patients particularly in countries where complement blocking therapies are difficult to reach due to their unavailability or costs that are not covered by the health care systems., Hacettepe University Scientific Research and Development Office
- Published
- 2022
27. Tek böbrekli çocuk hastalarda böbrek fonksiyonları ve ilişkili faktörlerin değerlendirilmesi
- Author
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Gündoğan, Rabia, Çomak, Elif, and Çocuk Sağlığı ve Hastalıkları Anabilim Dalı
- Subjects
Çocuk Sağlığı ve Hastalıkları ,Child Health and Diseases - Abstract
Fonksiyon gören tek böbrekli çocuk hastalar artmış hipertansiyon ve albüminüri nedeni ile ileri yaşamlarında kronik böbrek hasarı açısından risk altındadırlar. Bu araştırmanın amacı fonksiyon gören tek böbrek nedeni ile takipli çocuk hastaların böbrek fonksiyonları ve ilişkili risk faktörlerinin değerlendirilmesi, bu çocuklarda klinik özelliklerin, proteinüri ve hipertansiyon sıklığının incelenmesi, etyolojik nedenlerine göre sınıflanan hasta gruplarının ilişkili komplikasyonların görülme sıklığı açısından değerlendirilmesidir.Çocuk Nefroloji Polikliniğimizde fonksiyon gören tek böbrek nedeni ile izlemi olan hastalar araştırmaya dahil edildi. Hastaların tıbbi kayıtlarından BUN, serum kreatinin, sistatin C, GFH, sistatin C ve kreatinin temelli GFH ve 6 aylık, 1 yaş, 3 yaş, 5 yaşındaki serum kreatinin, sistatin C, GFH düzeyleri değerlendirildi. Hastalar etyolojik nedenlerine göre doğumsal (primer) ve edinilmiş (sekonder) nedenli fonksiyon gören tek böbrek grupları olmak üzere 2 alt grupta incelendi. Araştırmaya dahil edilen hastalar toplamda dört gruba ayrıldı. Primer fonksiyon gören tek böbrek grubu tek taraflı renal agenezi (URA) ve multikistik displastik böbrek (MKDB) hastalarından oluşmakta idi. Sekonder fonksiyon gören tek böbrek grubuna ise ek anomali nedeni ile nonfonksiyonel tek böbrek (12), ek ürolojik anomali - travma nedeni ile nefrektomili tek böbrek (20) hastaları dahil edildi.Çalışmaya dahil edilen 206 hastanın 125'i (%60,7) erkek, 81'i (%39,3) kız; hastaların ortalama yaşı 9,36±5,27 yıl, izlem süresi 56,14±46,52 ay idi.20 hastada GFH 0,05). Renal agenezisi olan hastalarda Multikistik displastik böbreği olan hastalara göre hipertansiyon görülme yüzdesi daha yüksekti (p=0,011).Renal agenezi hastalarının %33,3'ünde ve multikistik displastik böbrek hastalarının %35,7'sinde vezikoüreteral reflü gözlenmiştir. Üreteropelvik darlık renal agenezi hastalarının %16,7'sinde ve MKDB hastalarının ise %28,6'sında tespit edilmiştir. Renal agenezi ve MKDB hastalarının 6 aylıkken, 1 yaş, 3 yaş, 5 yaşındaki tüm zamanlarda kreatinin, GFH ve sistatin C ölçümleri karşılaştırıldığında istatistiksel olarak anlamlı bir fark olmadığı belirlenmiştir (p>0,05).Renal hasar olan hastalarda ek ürolojik anomali varlığı, prematürite, İYE öyküsü, hiperürisemi görülme yüzdesinin ve doğum ağırlığı 0.05).Fonksiyon gören tek böbreği olan çocuklarda renal hasar görülme sıklığı yüksektir. Bu hastaların böbrek fonksiyonları erken dönemden başlayarak yıllar içinde bozulmaktadır. Bu çocukların izleminde böbrek koruyucu önlemler alınmalı, yüksek riskli hastalar erişkin dönemde belirlenmelidir.Anahtar Kelimeler: Fonksiyon Gören Tek Böbrek, GFH, Renal Hasar, Sistatin C Children with a Solitary Functioning Kidney (SFK) have an increased risk of developing hypertension, albuminuria and chronic kidney disease in later life. The aim of this study is to evaluate kidney function and related risk factors of pediatric patients due to single kidney function, examination of clinical features, frequency of proteinuria and hypertension in these children, It is the evaluation of patient groups classified according to their etiological causes in terms of incidence of related complications.Patients who were followed up due to the SFK in our Child Nephrology outpatient clinic were included in the study. From the medical records of patients BUN, serum creatinine, cystatin C, GFR, extended GFR and serum creatinine, cystatin C, GFR levels were evaluated at 6 months, 1 year, 3 years, 5 years. Patients were analyzed in 2 subgroups as single kidney groups that function as congenital (primary) and acquired (secondary) for etiological reasons. The patients included in our study were divided into four groups in total. The primary renal function group consisted of unilateral renal agenesis (URA) and multicystic dysplastic kidney (MKDB) patients. The only kidney group with secondary function was included non-functional single kidney (12) due to additional anomaly, and single kidney (20) patients with nephrectomy due to additional urological anomaly - trauma.206 patients included in the study, 125 (60.7%) were boys and 81 (39.3%) were girls. The mean age of the patients was 9.36±5.27 years, and the follow-up period was 56.14±46.52 months.20 patients GFH 0.05). Hypertension was higher in patients with renal agenesis compared to patients with multicystic dysplastic kidney (p= 0.011).Vesicoureteral reflux was observed in 33.3% of unilateral renal agenesis patients and 35.7% of multicystic dysplastic kidney patients. Ureteropelvic stenosis was detected in 16.7% of unilateral renal agenesis patients and 28.6% of multicystic dysplastic kidney patients. When unilateral renal agenesis and multicystic dysplastic kidney patients were 6 months old, 1 years, 3 years old, 5 years old, there was no statistically significant difference when creatinine, GFR and cystatin C measurements were compared (p> 0.05).In patients with renal damage, the incidence of additional urological anomaly, prematurity, UTI history, hyperuricemia, and birth weight 0.05).The frequency of renal injury is high in children with a solitary functioning kidney. Kidney functions of these patients start to deteriorate over the years starting from the early period. Kidney protective measures should be taken in the follow-up of these children, and high-risk patients should be identified in adulthood.Key Words: Solitary Functioning Kidney, GFR, Renal Injury, Cystatin C 91
- Published
- 2020
28. Ailesel akdeniz ateşi tanısı ile izlenmekte olan çocuklarda CYP3A4, CYP2D6 ve MDR1 gen varyantlarının hastalık şiddeti ile ilişkisinin değerlendirilmesi
- Author
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Bilim Türkcan, Büşra, Çomak, Elif, and Çocuk Sağlığı ve Hastalıkları Anabilim Dalı
- Subjects
Severity of illness index ,Rheumatology ,Familial mediterranean fever ,Genetic variation ,Romatoloji ,Colchicine ,Children ,Çocuk Sağlığı ve Hastalıkları ,Child Health and Diseases - Abstract
En sık görülen Mendelian otoinflamatuar sendrom olan Ailesel AkdenizAteşi (AAA), otozomal resesif kalıtılır ve MEditerranean FeVer (MEFV) genmutasyonlarından kaynaklanır. AAA tedavisinde kullanılan temel ilaç kolşisindir.CYP3A4 ve CYP2D6 (CYP450 enzim ailesinden) ve bir transport proteini olanMDR1 kolşisin metabolizmasından sorumlu moleküllerdir. Bu araştırmada AAAtanılı çocuklarda CYP2D6, MDR1 ve CYP3A4 geninde yer alan değişiklikler ileklinik özellikler, kolşisin dozu ve tedavi direnci arasındaki ilişkinindeğerlendirilmesi amaçlanmıştır.Kliniğimizde AAA tanısı ile takip edilen ve kolşisin kullanan 124 çocuk ve60 sağlıklı çocuk araştırmaya dahil edilerek MDR1 c.3435C>T (rs1045642),CYP3A41b c.-392G>A (rs2740574), CYP2D6*4 c.1934G>A (rs3892097) veCYP2D6*3 c.2637Adel (rs35742686) varyantları PCR yöntemi ile incelendi.Varyant dağılımına göre wild type, heterozigot ve mutant olarak gruplandı.Hastaların demografik, klinik özellikleri, almakta olduğu tedaviler ve dozları ileMEFV genotipleri değerlendirildi.Araştırmaya dahil edilen 124 çocuk hastanın 55'i kız (%44,4), 69'u erkek;yaş ortalaması 11,41±4,2 yıl; izlem süresi 56,5±52,9 ay idi. Kontrol grubunun yaşortalaması [9,15±4,8 yıl (3-18 yıl)] ve cinsiyet dağılımı hasta grubu ile benzerdi.Hastaların %41,8'i Akdeniz bölgesinden köken almaktaydı. Hastaların çoğu(%69,4) ISSF'ye göre orta şiddette semptomlarla başvurmuştu. Hastaların50'sinde (%40,3) homozigot, 47'sinde (%37,9) bileşik heterozigot, 27'sinde(%21,8) heterozigot MEFV gen mutasyonu vardı. En sık görülen MEFVmutasyonu M694V homozigot, 2. sıklıkta görülen ise M694V/R2020Q olarakbulundu. Kolşisin dirençli grupta en sık görülen MEFV mutasyonu ise M694Vhomozigot (%62,5) olarak saptandı. Tüm hastalar kolşisin tedavisi alıyordu.Hastaların 34'ü (%27,4) >1,2 mg/m2/gün kolşisin alırken hastalığı kontrol50altındaydı. Kolşisin direnci 16 hastada vardı (%12,9). Bu hastaların 5'i kolşisininmagnezyum içeren formunu kullanmaktaydı. Diğerlerinin ise 5'i kanakinumabtedavisi alıyordu. MDR1 varyant dağılımı hasta ve kontrol grubunda benzerdi,(p=0,838). Allel dağılımına bakıldığında ise hastaların %63,9'u, kontrol grubununise %70'i T alleline sahipti. MDR1 varyant ve allel dağılımı ile kolşisin direnciilişkisi değerlendirildiğinde anlamlı bir ilişki bulunamadı. Kolşisin kullanım dozuile ilişkiye bakıldığında ise TT varyantta %90 hastada kolşisin kullanım dozunundüşük (T(rs1045642), CYP3A41b c.-392G>A (rs2740574), CYP2D6*4 c.1934G>A(rs3892097) and CYP2D6*3 c.2637Adel (rs35742686) variants were analyzed byPCR method. Demographic characteristics, treatments, clinical data and MEFVgenotypes of the patients were evaluated.Of the patients included in the study, 55 were female (44.4%) and 69 weremale; the mean age was 11.41±4.2 years; The follow-up period was 56.5±52.9months. The mean age of the control group was 9.15±4.8 years (3-18 years) andthe gender distribution was similar to the patient group. Of the patients, 41.8%were of Mediterranean origin. Most of the patients (69.4%) were presented withmoderate symptoms according to ISSF. Fifty (40.3%) patients had homozygous,47 (37.9%) compound heterozygous and 27 (21.8%) heterozygous MEFV genemutations. The most common MEFV mutation was M694V and the second mostcommon mutation was M694V / R2020Q. The most common MEFV mutation inthe colchicine resistant group was M694V homozygous (62.5%). All patientswere on colchicine. Thirty-four patients (27.4%) were receiving colchicine at adose of >1.2 mg/m2/day while the disease was under control. Colchicine53resistance was observed in 16 patients (12.9%). Five of these patients were onmagnesium containing colchicine. Five of them were taking canakinumab. MDR1variant distribution was similar in both groups (p = 0.838). When the alleledistribution was examined, 63.9% of the patient group and 70% of the controlgroup had T alleles. As MDR1 variant and allele distribution and colchicineresistance were evaluated, no significant relationship was found. When therelationship with colchicine dose was examined, colchicine dose was found to belower in TT variant and T allele (p=0,046). This result was associated with thelack of TT variant P-glycoprotein pump synthesis and higher blood colchicinelevels. When the variant distributions were evaluated according to ISSF values,the scores in the mutant group were significantly higher than those of the wildtype patients (p = 0.016), and this result was associated with colchicine nonresponsivenessin the literature. When the CYP3A41b variant distribution wasexamined, similar to the previous studies, heterozygous changes were observed in2.4% and 3.3% of the patient and control groups, respectively. Additionally, nomutant changes were detected in groups. The comparison of colchicine resistanceand allele distribution were compared with variant distribution, there was 33%colchicine resistance in G allele and 13% in A allele. Regarding colchicine use,most of the patients with G allele (66%) were using colchicine at a dose of
- Published
- 2019
29. Treatment of BK Polyomavirus-Associated Nephropathy in Paediatric Kidney Transplant Recipients: Leflunomide Versus Cidofovir.
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Kaya Aksoy G, Erkan M, Koyun M, Çomak E, Toru HS, Mutlu D, Akkaya B, and Akman S
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- Humans, Male, Child, Female, Leflunomide adverse effects, Cidofovir adverse effects, Viremia diagnosis, Retrospective Studies, Creatinine, Transplant Recipients, Kidney Transplantation adverse effects, BK Virus, Tumor Virus Infections diagnosis, Tumor Virus Infections drug therapy, Kidney Diseases diagnosis, Kidney Diseases drug therapy, Kidney Diseases surgery, Nephritis, Interstitial complications, Polyomavirus Infections diagnosis, Polyomavirus Infections drug therapy
- Abstract
Objectives: BK polyomavirus-associated nephropathy is a clinicopathological entity that negatively affects graft function in kidney transplant recipients. We compared the efficacy of leflunomide and cidofovir to treat BK polyomavirus-associated nephropathy in pediatric kidney transplant recipients., Materials and Methods: Medical records of pediatric recipients with BK viremia for the period 2004 through 2019 were reviewed retrospectively, and patients diagnosed with BK polyomavirusassociated nephro-pathy were included in the study. A serum BK virus level above 104 copies/mL was accepted as BK viremia. We defined BK polyomavirusassociated nephropathy as detection of BK virus SV40 antigen on immunochemistry staining of renal graft tissue accompanied by signs of tubulointerstitial nephritis or elevated serum creatinine in addition to BK viremia., Results: Of 304 kidney transplant recipients, 53 had persistent BK viremia; 36 of these patients (61.1% male) were included in the study with the diagnosis of BK polyomavirus-associated nephropathy. Twelve patients (33.3%) received cidofovir, and 14 (38.8%) received leflunomide. Results were similar between the cidofovir and leflunomide groups for serum creatinine level at last follow-up (0.91 ± 0.29 vs 0.94 ± 0.37 mg/dL, respectively; P = .843) and graft failure rate (8.3% vs 14.2%, respectively; P = .632). Graft failure was observed in 8.3% of patients with BK polyomavirus-associated nephropathy., Conclusions: Leflunomide and cidofovir showed similar efficacy for treatment of BK polyomavirus-associated nephropathy.
- Published
- 2024
- Full Text
- View/download PDF
30. Delayed diagnosis of primary vesicoureteral reflux in children with recurrent urinary tract infections: Diagnostic approach and renal outcomes.
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Doğan ÇS, Koyun NS, Aksoy GK, Çekiç B, Savaş M, and Çomak E
- Abstract
Objective: In this study, we aimed to assess renal outcomes of delayed diagnosis of dilating primary vesicoureteral reflux (VUR) following recurrent febrile urinary tract infections (fUTIs) and its diagnostic imaging procedures., Material and Methods: The medical records of patients who underwent ultrasonography (US), non- acute dimercaptosuccinic acid (Tc-99mDMSA) scintigraphy and voiding cystourethrography (VCUG), and who were older than 2 years at the time of VUR diagnosis were retrospectively reviewed., Results: A total of 32 children (female, n=27: 84.4%) with a mean age of 7.67±3.34 years at the time of diagnosis of VUR were included in the study. Grade III, IV, V VUR were found in 22%, 69%, and 9% of the patients, respectively. At the time of VUR diagnosis, abnormal US findings were detected in 75% of the cases. Tc-99mDMSA detected abnormalities in 83.9% (7 with a single scar, 7 with multiple lesions, 12 with reduced kidney function) of the patients. Estimated glomerular filtration rate of 3 patients with bilateral grade IV VUR was <75 mL/min/1.73 m
2 . In 5 patients (16%), VUR could not be predicted by US+DMSA scintigraphy (Grade IV VUR in 3 and Grade III in 2 cases ). The sensitivity in predicting VUR was 75.00% (95% CI: 56.60-88.54) and 83.87% (95% CI: 66.27-94.55), respectively, for US alone and combined US+DMSA., Conclusion: VCUG should be performed routinely in addition to US and non-acute DMSA in all children referred with recurrent fUTIs. Awareness of childhood UTI in public and healthcare personnels should be increased in order to refer these patients at a early stage to pediatric urology and nephrology units.- Published
- 2018
- Full Text
- View/download PDF
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