Keramettin Ugur Ozkan
Kahramanmaraş Sütçü İmam University
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Featured researches published by Keramettin Ugur Ozkan.
Urologia Internationalis | 2004
Keramettin Ugur Ozkan; Mesut Garipardic; Aydin Toktamis; H. Karabiber; T. Sahinkanat
Introduction: The aims of this study were to establish the prevalence of enuresis, to determine accompanying factors, and to identify common methods in the management of enuresis in Turkish children aged between 6 and 11 years living in eastern Anatolia. Methods: The parents of 3,527 schoolchildren aged between 6 and 11 years completed a self-administered questionnaire. The questionnaire asked about sociodemographic data, enuresis data, physical or psychological disorders, and family stressors. Descriptive statistics and χ2 test were used for data analysis. Results: The response rate was 88%. The overall prevalence of reported enuresis was 12.96%, and the prevalence of marked enuresis (at least weekly) was 9.8%. Enuresis was notably more common in boys (male:female ratio 1.6), and the prevalence rates decreased by age without gender bias. Of all enuretic children, 21% had also daytime bed-wetting. The rate of a positive family history was 42% for siblings only and 66% for the other family members. Significantly more of the dry children woke up spontaneously at night to void as compared with the enuretic children (p < 0.001). The parental concern level was not high, and only 15% of the children visited a physician for the management of enuresis. Low socioeconomic status, unfavorable perinatal or postnatal history, and unsatisfactory familial characteristics were significantly more frequent in the enuretic group (p < 0.05). The enuretic children had also higher rates of poor school performance and poor social adaptation as compared with nonenuretic children (p < 0.001). Conclusions: These results suggest that the prevalence of enuresis in eastern Anatolia is similar to that reported from western Anatolia and from most other countries. Turkish families did not report a high-level concern about enuresis, and the problem was managed primarily within the family.
Reproductive Biology and Endocrinology | 2007
Tayfun Sahinkanat; Keramettin Ugur Ozkan; Fatma Inanc Tolun; Harun Ciralik; Secil Simsek Imrek
BackgroundIt has been demonstrated that brief episodes of sublethal ischemia-reperfusion, so-called ischemic preconditioning, provide powerful tissue protection in different tissues such as heart, brain, skeletal muscle, lung, liver, intestine, kidney, retina, and endothelial cells. Although a recent study has claimed that there are no protective effects of ischemic preconditioning in rat testis, the protective effects of ischemic preconditioning on testicular tissue have not been investigated adequately. The present study was thus planned to investigate whether ischemic preconditioning has a protective effect on testicular tissue.MethodsRats were divided into seven groups that each contained seven rats. In group 1 (control group), only unilateral testicular ischemia was performed by creating a testicular torsion by a 720 degree clockwise rotation for 180 min. In group 2, group 3, group 4, group 5, group 6, and group 7, unilateral testicular ischemia was performed for 180 min following different periods of ischemic preconditioning. The ischemic preconditioning periods were as follows: 10 minutes of ischemia with 10 minutes of reperfusion in group 2; 20 minutes of ischemia with 10 minutes of reperfusion in group 3; 30 minutes of ischemia with 10 minutes of reperfusion in group 4; multiple preconditioning periods were used (3 × 10 min early phase transient ischemia with 10 min reperfusion in all episodes) in group 5; multiple preconditioning periods were used (5, 10, and 15 min early phase transient ischemia with 10 min reperfusion in all episodes) in group 6; and, multiple preconditioning periods were used (10, 20, and 30 min early phase transient ischemia with 10 min reperfusion in all episodes) in group 7. After the ischemic protocols were carried out, animals were sacrificed by cervical dislocation and testicular tissue samples were taken for biochemical measurements (protein, malondialdehyde, nitric oxide) and histological examination.ResultsAlthough decreased tissue malondialdehyde levels were detected in the groups of 2, 3, 4, and 5 compared to group 1, significant decreases were observed in only group 2 and group 5 (p < .05). Nitric oxide levels were numerically decreased in all groups compared to the control group but was statistically significant only in group 5 (p < .05). Histopathological examination demonstrated that all groups subjected to ischemic preconditioning had less tissue damage than group 1 (p < .05).ConclusionThese results suggest that ischemic preconditioning provides tissue protection in testicular tissue.
International Journal of Urology | 2005
Keramettin Ugur Ozkan; Murat Gonen; Tayfun Sahinkanat; Sefa Resim; Mustafa Çelik
Abstract Background: To assess the feasibility of using tissue glue in the approximation of circumcision wounds in children.
Urologia Internationalis | 2010
Keramettin Ugur Ozkan; Vedat Bakan; Ayhan Mil; Senol Ozturk
Introduction: We retrospectively assessed our experience with ureteroscopy (URS) for ureteric calculi in prepubertal children. Patients and Methods: The records of all children who underwent URS at our institution for ureteral calculi between September 2007 and July 2009 were retrospectively reviewed. Patient demographics, stone location and size, pre- and postoperative stenting, intraoperative active dilatation, stone-free rates and complications were noted. Results: A total of 26 patients (20 males and 6 females; mean age 59.9 months) underwent 30 URS procedures with rigid ureteroscopes for 31 ureteral calculi. The mean size of ureteral stones was 8.6 mm. A total of 18 URS procedures were performed without any active ureteral dilatation, and 8 patients underwent 12 passive dilatations of initially inaccessible ureters. Stents remained in place for 2–4 weeks. The stone-free rate was 84.6% for all patients and all procedures. Postoperatively, 12 patients (46%) had stent placement for 2–5 days because of stone burden, edema of the ureteral orifice and hematuria. Conclusions: URS treatment of ureteral stones without active dilatation can be performed safely and effectively in prepubertal children. Passive ureteral dilatation might be necessary in some cases to enable ureteral access.
Urologia Internationalis | 2008
Aydin Toktamis; Yeltekin Demirel; Keramettin Ugur Ozkan; Mesut Garipardic; Ali Gözüküçük; Naim Nur
Background: This study was conducted to determine the prevalence of diurnal enuresis (DE) and its association with background variables among children aged 5–15 years living in Sivas and Kahramanmaraş, Turkey. Methods: The parents of 1,760 children voluntarily completed a questionnaire consisting of 42 items under supervision of a researcher. Results: Overall, the reported prevalence of DE was 4.2%, with a tendency to decrease with increasing age and with no difference between genders. Smoking during pregnancy, delayed initiation and dealing with the child by punishment in toilet training, urination frequency, urgency, soiling, arousal difficulty, urinary infection history, lower school performance, poor social adaptation, wetting history in the family, were all significantly prevalent among diurnal enuretics (p < 0.05). Socioeconomic or sociodemographic factors based on families and stressful life events were not associated with DE (p > 0.05). 63.9% of all parents reported some level of concern about the wetting problem and 51.7% of the diurnal enuretics had previously visited a physician. Conclusions: The prevalence of DE in our sample is not too different from the prevalence rates reported previously from Turkey and other countries. This type of enuresis seems to be more associated with an organic neurological or urological disorder than is nocturnal enuresis.
The Cleft Palate-Craniofacial Journal | 2006
Keramettin Ugur Ozkan; Yusuf Kenan Coban; Murat Uzel; Mehmet Ali Ergun; Hafize Oksuz
A wide spectrum of anomalies can be associated with Pierre Robin sequence. This report presents a 3-day-old infant with micrognathia, U-shaped cleft palate, low-set right ear with microtia, glossoptosis, esophageal atresia, and right congenital radioulnar synostosis. The association of congenital radioulnar synostosis and esophageal atresia with Pierre Robin sequence has not been previously described.
Urologia Internationalis | 2003
Keramettin Ugur Ozkan; Mustafa Küçükaydin; Sabahattin Muhtaroglu; Olgun Kontas; Fahri Karaca
Introduction: The aim of this study was to evaluate contralateral testicular damage (CTD) following unilateral blunt testicular trauma (BTT) and testicular capsule laceration (TCL) by the serum inhibin B level which is an accepted marker of spermatogenesis. Methods: Fifty peripubertal male Wistar albino rats were divided into 5 groups each containing 10 rats. Group 1 was the control group. Group 2 was the BTT group in which the right testicle was placed on a firm surface and a metal rod weighing 215 g was dropped onto the testicle from a height of 5.5 cm. Group 3 was the TCL group in which right testicular tunica albuginea was lacerated using the needle of 4/0 silk suture. Group 4 had right orchiectomy initially. Group 5 was the sham group. In all groups, 3-ml blood samples were taken and bilateral orchiectomies were performed 6 weeks after initial manipulations. Results: Groups 2 and 3 had decreased inhibin B levels (p < 0.001), although the orchiectomy group had normal levels. Histological analyses showed lower Johnsen scores for both trauma groups in the ipsilateral and contralateral testes (p < 0.05). Conclusions: Serum inhibin B levels decrease following unilateral testicular trauma reflecting CTD.
Pediatrics | 2013
Erkan Efe; Sefa Resim; Burak Beşir Bulut; Mustafa Eren; Mesut Garipardic; Fuat Ozkan; Keramettin Ugur Ozkan
The severe ischemia or necrosis of the glans penis is a rarely seen complication after circumcision. We report the case of a 7-year-old boy with severe glans penis ischemia occurring 24 hours after circumcision with local anesthesia (0.1% xylocaine containing ephedrine). His hemogram and levels of proteins C and S and fibrinogen were normal, but the D-dimer level was higher than normal (2.57 mg/L; normal level 0–0.5 mg/L). Normal blood flow was indicated on color Doppler ultrasonography. The severe ischemia in the glans penis was successfully treated with subcutaneous injection of enoxaparin (low-molecular-weight heparin) for 5 days, and the appearance of the glans was close to normal on the fifth day. The patient did not require any surgical intervention and was discharged without sequelae. As a result, we consider that ischemia of the glans penis may initially be managed with enoxaparin, especially in cases in which the D-dimer level is higher than normal.
Archives of Clinical and Experimental Surgery | 2015
Fuat Ozkan; Mehmet Fatih Inci; Yakup Yesilkaya; Murvet Yuksel; Keramettin Ugur Ozkan
Turkısh Journal of Anesthesıa and Reanımatıon | 2012
Emin Silay; İsmail Coşkuner; Huseyin Yildiz; Cevdet Yardımcı; Keramettin Ugur Ozkan; Mehmet Davutoğlu