Gönül Küçük
Ankara University
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Featured researches published by Gönül Küçük.
Diseases of The Esophagus | 2016
Murat Çakmak; Özlem Boybeyi; Gülnur Göllü; Gönül Küçük; Meltem Bingöl-Koloğlu; Aydin Yagmurlu; Tanju Aktug; Hüseyin Dindar
The study aims to evaluate the effectiveness and safety of endoscopic balloon dilatation (EBD) in childhood benign esophageal strictures. The medical records of 38 patients who underwent EBD from 1999 to 2013 were retrospectively reviewed. Demographic features, diagnoses, features of strictures, frequency and number of EBD, complications, outcome, and recurrence data were recorded. Median age was 1.5 years (0-14), and female/male ratio was 17/21 (n = 38). Primary diagnoses were corrosive esophageal stricture (n = 19) and esophageal atresia (n = 19). The length of strictures were less than 5 cm in 78.9% (n = 30). No complication was seen in 86.8% (n = 33). Perforation was seen in 10.5% (n = 4), and recurrent fistula was seen in 2.7% (n = 1). Total treatment lasted for 1 year (1-11). Dysphagia was relieved in 60.5% (n = 23). Recurrence was seen in 31.6% (n = 12). Treatment effectiveness was higher, and complication rates were lower in strictures shorter than 5 cm compared with longer ones (70% vs. 25%, P < 0.05, and 3.4% vs. 37.5%, P < 0.05). Although there was no statistical difference, treatment effectiveness rates were lower and complication and recurrence rates were higher in corrosive strictures compared with anastomotic ones (P > 0.05). EBD is a safe and efficient treatment choice in esophageal strictures, especially in strictures shorter than 5 cm and anastomotic strictures.The study aims to evaluate the effectiveness and safety of endoscopic balloon dilatation (EBD) in childhood benign esophageal strictures. The medical records of 38 patients who underwent EBD from 1999 to 2013 were retrospectively reviewed. Demographic features, diagnoses, features of strictures, frequency and number of EBD, complications, outcome, and recurrence data were recorded. Median age was 1.5 years (0-14), and female/male ratio was 17/21 (n = 38). Primary diagnoses were corrosive esophageal stricture (n = 19) and esophageal atresia (n = 19). The length of strictures were less than 5 cm in 78.9% (n = 30). No complication was seen in 86.8% (n = 33). Perforation was seen in 10.5% (n = 4), and recurrent fistula was seen in 2.7% (n = 1). Total treatment lasted for 1 year (1-11). Dysphagia was relieved in 60.5% (n = 23). Recurrence was seen in 31.6% (n = 12). Treatment effectiveness was higher, and complication rates were lower in strictures shorter than 5 cm compared with longer ones (70% vs. 25%, P < 0.05, and 3.4% vs. 37.5%, P < 0.05). Although there was no statistical difference, treatment effectiveness rates were lower and complication and recurrence rates were higher in corrosive strictures compared with anastomotic ones (P > 0.05). EBD is a safe and efficient treatment choice in esophageal strictures, especially in strictures shorter than 5 cm and anastomotic strictures.
The Journal of Urology | 2015
Ufuk Ates; Gülnur Göllü; Meltem Bingöl-Koloğlu; Deniz Billur; Gönül Küçük; Nihan Örüklü; Ümit Bağrıaçık; Nesrin Hasirci; Hüseyin Dindar
PURPOSE We evaluated the effects of local and systemic growth hormone on the germ cell population of the contralateral testes of pubertal rats subjected to unilateral testicular torsion and orchiectomy 24 hours later. MATERIALS AND METHODS A total of 40 male Wistar-Albino rats at age 3 weeks were divided into 5 groups. In the sham operated group the right testis was sutured and orchiectomy was performed 24 hours later. In groups 2 to 5 orchiectomy was performed 24 hours later following testicular torsion. In groups 3 and 4 unloaded and growth hormone loaded gelatin films, respectively, were sutured on the contralateral testes. In group 5 systemic growth hormone was administered for 7 days. Five weeks later each rat was cohabited with 2 female rats and the left testes were removed for evaluation. Mean seminiferous tubular diameter, mean testicular biopsy score and the mean haploid cell percentage were calculated. Mating studies were performed and fertility parameters were assayed. RESULTS Mean seminiferous tubular diameter, mean testicular biopsy score and the mean haploid cell percentage of the contralateral testes were significantly decreased in the control and gelatin groups compared with the other groups. There was no difference between the local and systemic growth hormone groups regarding the haploid cell percentage. There were no differences between the groups in mean fetus numbers, mating or fertility and fecundity indexes except in the gelatin group, in which the mean fetus number was significantly lower. CONCLUSIONS Fertility is not affected in rats after 24 hours of testicular torsion and orchiectomy, although there is germ cell injury and a decrease in the percent of haploid cells. Growth hormone administration resulted in the restoration of germ cell histology and an increase in the haploid cell percentage of the contralateral testes. Growth hormone may improve fertility after unilateral testicular torsion and orchiectomy.
Journal of Pediatric Surgery | 2016
Gülnur Göllü; Numan Demir; Ufuk Ates; Selen Serel Aslan; Ergun Ergün; Gönül Küçük; Aydin Yagmurlu
AIM Cricopharyngeal achalasia (CPA) is a rare clinical condition that is characterized by aspiration, choking, and nasopharyngeal regurgitation. The aim of this study is to introduce the outcomes of dilatation alone in children with CPA. PATIENTS AND METHOD After the evaluation of upper esophageal sphincter with endoscopy, dilatation was performed. All patients underwent videofluoroscopic evaluation and swallowing therapy after the surgical procedure. A retrospective chart review was performed in children with CPA. RESULTS Thirty children who were videofluoroscopically proven to have CPA were included in the study. Their age range was 15days-7years (median 11months). Twenty-one of them were neurologically impaired. Two children were lost to follow-up. Nineteen patients (68%) had a total resolution of CPA and were symptom-free with 1-6 dilatations (median 2). Three of the children (11%) who were severely neurologically impaired had resistant CPA. Three children (11%) treated recently with short follow-up were added to the group. Their VFS evaluations demonstrated improvement, thus we accepted their result as successful. There were two perforations in the series. Three patients died; one 2-month-old (2500g) baby who was accepted from the intensive care unit passed away on postoperative on the 7th day. Two other babies who were unresponsive to dilatation therapy died on follow-up. CONCLUSION Dilatation can be a safe and effective method on children who are correctly diagnosed to have CPA.
Archivos Argentinos De Pediatria | 2016
Ufuk Ates; Gülnur Göllü; Gönül Küçük; Deniz Billur; Meltem Bingöl-Koloğlu; Yavuz Yilmaz; Hulya Ozkan-Ulu; Pinar Bayram; Bagriacik E; Hüseyin Dindar
BACKGROUND/AIM The aim of the present study was to find out if there is an increase in the expression of pro-apoptotic Bax and reduction in expression of anti-apoptotic Blc-2A1 in newborn intestines with necrotizing enterocolitis (NEC). MATERIALS AND METHODS We compared 8 consecutive newborn patients undergoing bowel resection for NEC with 8 neonates undergoing intestinal resection for ileal atresia. Histopathological evaluation of tissue injury and apoptosis was performed by using light microscopic examination and TUNEL method. The mRNA level of apoptotic (CASP3, CASP6, CASP7, Bax, BIRC2) and anti-apoptotic genes were evaluated by PCR array method. Protein expression was assessed by immunohistochemistry. RESULTS We compared 8 consecutive newborn patients undergoing bowel resection for NEC with 8 neonates undergoing intestinal resection for ileal atresia. Histopathological evaluation of tissue injury and apoptosis was performed by using light microscopic examination and TUNEL method. The mRNA level of apoptotic (CASP3, CASP6, CASP7, Bax, BIRC2) and anti-apoptotic genes were evaluated by PCR array method. Protein expression was assessed by immunohistochemistry. CONCLUSIONS Our data in humannewborns suggest that alteration of the balance between pro-apoptotic Bax expression and anti-apoptotic Bcl-2A1 expression in the site of injury is a possible mechanism in the pathogenesis of NEC.
Turkish Journal of Medical Sciences | 2017
Ahmet Çakmak; Özlem Boybeyi Türer; Gulnur Gollu Bahadir; Bilge Türedi; Ufuk Ateş; Adalet Elcin Yildiz; Gönül Küçük; Ömer Suat Fitöz; Betül Ulukol; Mustafa Kemal Aslan; Tutku Soyer; Hüseyin Dindar
BACKGROUND/AIM The aim is to evaluate the long-term outcome of asymptomatic patients who underwent surgical correction for midgut volvulus. MATERIALS AND METHODS Seven patients managed surgically for midgut volvulus in the last 3 years were included. Demographic features, symptoms at presentation, diagnoses, surgical procedures, and complications were recorded. Patients were then contacted for follow-up and evaluation of long-term outcomes. General physical conditions, anthropometric parameters, feeding habits, and defecation histories were evaluated. Laboratory examinations were performed. Color Doppler ultrasonography (CDUS) was performed to evaluate blood flow in the superior mesenteric artery (SMA). RESULTS In total, seven patients were identified. The median age at admission was 3 days (0-90 days). Mean age at follow-up was 17 ± 2 months. Growth parameters were normal in all cases. Four patients had low levels of ferritin and transferrin saturation. One patient had microcytic anemia. Another patient had low serum zinc level. One patient who had ileal resection had a high level of steatorrhea in stool examination. In CDUS, SMA blood flow volume was low in all cases. Peak-systolic velocity and resistance index were low in all but one case. CONCLUSION Despite uneventful postoperative courses, all patients operated on for midgut volvulus showed mild laboratory changes and decreased blood flow in the SMA in long-term follow-up.
The Turkish journal of gastroenterology | 2017
Ufuk Ates; Ergun Ergün; Gülnur Göllü; Gönül Küçük; Aydin Yagmurlu
BACKGROUND/AIMS We aimed to evaluate postoperative fecal incontinence scales of children who underwent laparoscopic proctocolectomy and ileal J-pouch anastomosis for familial adenomateous polyposis (FAP) and inflammatory bowel disease (IBD). MATERIALS AND METHODS Fecal incontinence scores were collected at 3 months post-surgery. A retrospective chart review was also performed to obtain the demographic data and operative technical details. RESULTS The postoperative Wexner Fecal Incontinence Score was 0 in 9 of 11 patients and satisfactory in the remaining two. None of the children had a major complication. CONCLUSION Even though the presented study does not have any comparable data, it seems that laparoscopic total proctocolectomy with ileal J-pouch anal anastomosis (TP IPAA) might be the best choice of surgery because it provides good continence with low complication rates.
Archivos Argentinos De Pediatria | 2016
Gönül Küçük; Ufuk Ates; Gülnur Göllü; Aydin Yagmurlu
La rotura traqueal tras una contusión es rara, aunque potencialmente mortal. En general, se recomienda el tratamiento quirúrgico para la rotura traqueal, aunque también se ha informado recientemente el abordaje conservador en los pacientes con signos vitales y parámetros respiratorios estables. El objetivo de este estudio es informar sobre un caso de rotura traqueal tras una contusión en el cuello producto de un accidente de bicicleta que se trató de manera conservadora.
The Eurasian Journal of Medicine | 2015
Gülnur Göllü; Gönül Küçük; Ayse Anıl Karabulut; Aydin Yagmurlu; Murat Çakmak
The complication rates are still 1-90% both in proximal and distal hypospadias regardless of the surgeons experience and the usage of most developed techniques. The literature survey revealed few complications of glans penis including meatal stenosis, prolapsus and retraction. Despite our literature survey, we could not find any article concerning the permanent scar tissue at the dorsal part of glans following hypospadias surgeries. A new complication can be added to these, concerning glans which is the formation of postoperative scar tissue as a reaction to suture material used in traction, stent anchoring or both. The aim of this paper is to demonstrate four cases which had glanular scar due to traction suture following the surgical procedures for hypospadias repair.
International Braz J Urol | 2015
Murat Çakmak; Gülnur Göllü; Gönül Küçük; Berktuğ Bahadır
ABSTRACT Failed hypospadiass cases may result in hypovascular, scarred penis with residual penile chordee and leave the patient with minimal residual skin for penile resurfacing and urethroplasty. Local tissue expansion has become a good alternative to provide skin for penis by using expanders however they require long periods of time for expansion. Besides, rapid tissue expansion was also described in different tissues. We used rapid intraoperative expansion technique by using a Foley catheter in a failed hypospadias case who had minimal residual skin secondary to infection and we concluded that rapid intraoperative tissue expansion with Foley catheter is an effective, feasible reconstructive method for easy dissection and penile resurfacing in failed hypospadiass cases.
Journal of Pediatric Surgery | 2015
Murat Çakmak; Gülnur Göllü; Özlem Boybeyi; Gönül Küçük; Mehmet Sertçelik; Yasemin Dere Günal; Mustafa Kemal Aslan; Tutku Soyer; Orhan Murat Koçak; Aytül Çakmak; Şirin Çetin; Meltem Bingöl-Koloğlu; Aydin Yagmurlu; Hüseyin Dindar; Birim Günay Kılıç