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Featured researches published by Unal Zorludemir.


Journal of Pediatric Surgery | 1986

Complete duplication of the colon

Selçuk Yücesan; Unal Zorludemir; Isik Olcay

A case with complete tubular duplication of the colon is presented. The patient was a 1-year-old girl who had had defecation problems for 3 months. Successful surgical treatment was achieved by closing the vaginal fistula and creating an oval window on the common wall of the duplicated colon.


Journal of Pediatric Surgery | 1992

Tubular Duplication of the Hindgut With Genitourinary Anomalies

Hasan Okur; Erbug Keskin; Unal Zorludemir; Isik Olcay

Hindgut duplication including the colon and rectum as well as the genital and urinary organs are extremely rare. Only a few cases are noted in the medical literature. In this report, a newborn with exstrophy of the urinary bladder, double vagina and uterus, double anus, and complete duplication of rectum and colon with malrotation is presented.


Pediatric Emergency Care | 2012

Severe Abdominal Trauma Involving Bicycle Handlebars in Children

Murat Alkan; Serdar İskit; Sureyya Soyupak; Recep Tuncer; Hasan Okur; Erbug Keskin; Unal Zorludemir

Objectives To emphasize the severity of the underlying injury which may not be realized during the initial patient admission to the emergency department. Methods A retrospective case note review of children admitted to our institution with the severe abdominal injury. Results Eight children were identified with the severe abdominal injury secondary to the trauma from a bicycle handlebar that needed special care in the intensive care unit. All injuries were due to blunt trauma. The mean delay from the time of the accident to the time of presentation was 34.5 hours. All patients had an imprint of the handlebar edge on the hypochondrium. There were 3 pancreatic lacerations, 1 duodenal laceration, 1 jejunal laceration, 1 liver laceration, 1 abdominoinguinal laceration that all required open surgery, and 1 duodenal hematoma that resolved in 4 weeks follow-up period. The patients who required open surgery were evaluated with computed tomographic scans before surgery. Conclusions Children with an imprint made by the handlebar edge on the abdominal wall or give a clear history of injuries by a bicycle handlebar should be treated with great care. Early computed tomography evaluation may help to reduce the morbidity resulting from the delay in diagnosis of injuries to the internal organs.


Acta Cytologica | 1998

Fine needle aspiration cytology of Hepatoblastoma : A report of two cases

Canan Ersöz; Unal Zorludemir; Atila Tanyeli; Derya Gumurdulu; Medih Çeliktaş

BACKGROUND Hepatoblastoma is the most common primary hepatic tumor in children. The literature contains few examples of fine needle aspiration (FNA) cytology of these tumors. CASES A 5-month-old and 4-month-old underwent ultrasonography-guided FNA for the preoperative investigation of hepatic masses. The smears were stained with May-Grünwald-Giemsa and Papanicolaou stain. Alcohol-fixed smears were used for immunocytochemistry. All smears revealed cells with round/oval nuclei, prominent nucleoli and vacuolated cytoplasm, arranged in groups and acinar structures. The groups were embedded in a myxoid stroma. alpha-Fetoprotein was positive in all, and vimentin was positive in some tumor cells. The cytologic findings resembled the histologic counterpart in one case, and the other case agreed with the clinical/radiologic prediagnosis. Immunocytochemistry was supportive. CONCLUSION FNA cytology can be diagnostic in many other childhood tumors as well as hepatoblastomas. Detailed descriptions of cytomorphologic features of hepatoblastoma will help FNA to be used confidently on these tumors.


Journal of Pediatric Urology | 2009

Fetal urinary ascites in a neonate without detectable obstructive uropathy or neurogenic bladder etiology

Murat Alkan; Zerrin Özçelik; Erbug Keskin; Unal Zorludemir; Isik Olcay

Fetal urinary ascites is usually secondary to an obstructive uropathy or neurogenic bladder. We present such a case in the absence of these conditions, but the presence of ipsilateral vesicoureteral reflux with Hutch diverticula. The patient was a 5-day-old boy presenting with distension of the abdomen and impairment of renal function. Tests revealed urinary ascites and renal insufficiency which spontaneously resolved after transurethral urinary drainage was established. This rare complication should be considered in neonates with high intrapelviureteric and intrarenal pressure as a result of high-grade vesicoureteral reflux with paraureteral diverticula.


Gastroenterology Research and Practice | 2016

Laparoscopy-Assisted Percutaneous Cholangiography in Biliary Atresia Diagnosis: Comparison with Open Technique

Murat Alkan; Kamuran Tutus; Ender Fakıoğlu; Önder Özden; Zehra Hatipoglu; Serdar İskit; Recep Tuncer; Unal Zorludemir

Introduction. Biliary atresia is a surgical cause of prolonged jaundice, which needs to be diagnosed with cholangiography that has traditionally been performed via laparotomy. Laparoscopic assistance has lately been introduced to avoid unnecessary laparotomy. We aim to evaluate the benefits of the laparoscopy-assisted cholangiography and compare it to the traditional procedure via laparotomy. Patients and Method. The medical records of the cases who had undergone cholangiography for prolonged jaundice between 2007 and 2014 were analyzed. The patients were grouped according to cholangiography technique (laparotomy/laparoscopy). The laparoscopy and laparotomy groups with patent bile ducts were focused and compared in terms of operation duration, postoperative initiation time of enteral feeding, and full enteral feeding achievement time. Results. Sixty-one infants with prolonged jaundice were evaluated between 2007 and 2014. Among the patients with patent bile ducts, operation duration, postoperative enteral feeding initiation time, and the time to achieve full enteral feeding were shorter in laparoscopy group. Conclusion. Laparoscopic cholangiography is safe and less time-consuming compared to laparotomy, with less postoperative burden. As early age of operation is a very important prognostic factor, laparoscopic evaluation should be an early option in work-up of the infants with prolonged jaundice with direct hyperbilirubinemia, for diagnosis/exclusion of biliary atresia.


International Urology and Nephrology | 2005

Giant renal hydatid cyst resembling a simple cyst: an intraoperative diagnosis.

Bozkurt Gulek; Pelin Oğuzkurt; Unal Zorludemir

An interesting case of a giant renal hydatid cyst is presented. The big cystic mass detected at ultrasonography (US) and computerized tomography (CT) in a ten-year-old girl looked like a simple cyst. No germinative membrane or any other radiological sign of a hydatid cyst was present. The operation was planned for a simple cyst; but was altered, after an intraoperative diagnostic needle sampling brought out the characteristic fluid of hydatid cyst. We came to the conclusion that hydatid cystic masses may not always present with their characteristic radiological findings; and that extreme caution should be practiced by the radiologist and the surgeon in order to prevent iatrogenic echinococcal dissemination.


Balkan Medical Journal | 2014

Factors Affecting the Prevalence of Gastro-oesophageal Reflux in Childhood Corrosive Oesophageal Strictures

Serdar İskit; Zerrin Özçelik; Murat Alkan; Selcan Türker; Unal Zorludemir

BACKGROUND Gastro-oesophageal reflux may accompany the corrosive oesophageal damage caused by the ingestion of corrosive substances and affect its treatment. The factors that affect the development of reflux in these cases and their effects on treatment still remain unclear. AIMS Our aim is to investigate the prevalence of gastro-oesophageal reflux in children with corrosive oesophageal strictures, the risk factors affecting this prevalence and the effects of gastro-oesophageal reflux on treatment. STUDY DESIGN Case-control study. METHODS We enrolled 52 patients with oesophageal stricture due to corrosive substance ingestion who were referred to our clinic between 2003 and 2010. Groups, which were determined according to the presence of gastro-oesophageal reflux (GER), were compared with each other in terms of clinical findings, results of examination methods, characteristics of the stricture and success of the treatment. RESULTS The total number of patients in our study was 52; 30 of them were male and 22 of them were female. The mean age of our study population was 4.2±2.88 years. Thirty-three patients had gastrooesophageal reflux (63.5%). Patients who had strictures caused by the ingestion of alkali substances were 1.6-times more likely to have reflux. There were no differences between patients with or without reflux in terms of number and localisation of strictures. Mean distance of stricture was longer in patients with reflux (3.7±1.8 cm) than in patients without (2.2±1.0 cm) (p<0.005). Only one patient among 17 who had a long stricture (≥4 cm) did not suffer from reflux. Patients with long stricture were 1.9-times more likely to have reflux. Dilatation treatment was successful in 69.6% of patients with reflux and in 78.9% of patients without. The mean treatment period was 8.41±6.1 months in patients with reflux and 8.21±8.4 months in the other group. There was no significant difference between groups in terms of frequency of dilatation and dilator diameters (p>0.05). CONCLUSION Corrosive oesophageal stricture was usually accompanied by gastro-oesophageal reflux and the length of stricture is an important risk factor. Negative effects of reflux over dilatation treatment have not yet been demonstrated in the short-term. Nevertheless, this frequent rate of reflux may eventually increase the risk of oesophagitis and Barretts oesophagus; therefore, we suggest that these effects should be prospectively evaluated in a large number of patients and these patients should be followed-up routinely in terms of the long-term effects of reflux.


The Turkish journal of gastroenterology | 2009

Perforation of an inflamed Meckel's diverticulum in a newborn: report of a case.

Murat Alkan; Gokhan Guler; Ferhat Yildirim; Figen Doran; Unal Zorludemir; Isik Olcay


Balkan Medical Journal | 2013

Renal sparing surgery using focus ultracision harmonic scalpel in patients with bilateral wilms' tumor: case report.

Murat Alkan; Cemal Parlakgümüş; Serdar İskit; Recep Tuncer; Hasan Okur; Unal Zorludemir

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