Publications by authors named "Koksal Oner"

Small bowel neoplasms are usually diagnosed when patients are referred with complications such as hemorrhage or obstruction. Intestinal lipomas are the third most frequent benign tumors among all intestinal neoplasms and their definite diagnosis is usually obtained after histopathological examination of the resected specimen. A 76 year-old male patient with partial intestinal obstruction and rectal bleeding at admittance was found to have an abdominal mass on ultrasound.

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Background: Endothelial dysfunction (ED) has a major role in the cardiovascular outcome of patients with chronic kidney disease (CKD). The aim of this study was to investigate the relation between fetuin A levels and ED in kidney transplant recipients.

Methods: Forty-two living donor kidney transplant recipients, 21 (11 male) on cyclosporine A and 21 (10 male) on tacrolimus-based regimes, were studied.

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Background: Effects of various types and diameters of guns and related treatment principles are different. Our study was performed to experimentally demonstrate the effects of different gunshots in body tissues.

Methods: 9x19 mm hand-gun and 7.

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Most of the foreign bodies detected in adult gastrointestinal systems are accidentally swallowed pins. In this study, we presented a case with intracolonic multiple pebbles. A 20-year-old man was admitted to emergency surgery policlinic for abdominal pain for 2 d without any alleviation or aggravation.

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Background: The effect of pneumoperitoneum on veins of the lower limbs related to the intra-abdominal working pressures during laparoscopic cholecystectomy has not been thoroughly investigated. We tested the hypothesis that working pressures do not affect the venous haemodynamics in the lower limbs.

Methods: The cross-sectional area and peak flow rates of femoral and saphenous veins in the right groin were measured in 60 patients divided into two groups according to the intra-abdominal working pressures (11 vs 14 mmHg).

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Background/aims: Heterotopy is defined as abnormal localization of well-differentiated tissue. Heterotopic tissues usually tend to be asymptomatic and noncomplicated but sometimes may cause serious clinical problems. Malignancy potential is the most important issue in this clinical entity.

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Abdominoscrotal hydrocele and transverse testis ectopia are rare clinical conditions. This case report describes the combination of these two rare entities. An azoospermic and infertile adult man presented with left abdominoscrotal hydrocele and a right impalpable testis.

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Background: Oxidative stress is one of the leading causes of cardiovascular morbidity and mortality in chronic kidney disease. Although it is clear that many metabolic abnormalities improve, the effects of kidney transplantation on oxidative state are obscure.

Methods: Twenty-three kidney transplant patients were included in the study.

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The fragmentation impact of high-velocity bullets penetrating the body after piercing through the magazines carried by soldiers was investigated experimentally. In this study, 16 pigs and 7.62x51-mm full metal jacket bullets were used.

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Background: The purpose of this study was to investigate the fragmentation effect of the bullet that passes through the radio or ammunition magazine, which are essential pieces of equipment for a soldier, in thoracic gunshot injuries.

Methods: Twelve adult pigs were used. The pigs were separated into three groups (each group contained four pigs).

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Background: To investigate the appropriate surgical method that should be selected in the localized fecal peritonitis due to colonic injuries with 24 hours delay.

Methods: Colonic injuries were performed in 35 rats and the repairs were carried out after 24 hours. Seven rats (%20) died of generalized peritonitis in this period.

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Objectives: The aim of this study was to investigate the factors that influence the severity of soft tissue and bone injuries occurring in gunshot traumas and to compare the effects of handgun and rifle bullets on these injuries.

Methods: Sixteen tissue simulants which were made of transparent gel candle blocks and calibrated to muscle tissue were targetted by pistol (9 mm parabellum) or military rifle (G-3) bullets. Half of the blocks contained fresh calf humerus bone.

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Background: Inanimate tissue stimulants have been used to show the bullet effects in ballistic studies. Gelatin has been being used as a ballistic stimulant for the last 20 years. It was considered that transparent gel candle (kraton in white paraffin oil) might be used as a soft tissue stimulant that can be an alternative for gelatin.

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