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Öğe Caudal ropivacaine and neostiginine in pediatric surgery(Lippincott Williams & Wilkins, 2003) Turan, A; Memis, D; Basaran, ÜN; Karamanlioglu, B; Süt, NBackground: Neostigmine has been added to local anesthetics for different nerve blocks. This study was conducted to evaluate effects of neostigmine when added to ropivacaine for caudal anesthesia. Methods: We studied children, aged 1-5 yr, undergoing inguinal hernia and hypospadias surgery. After standard induction of anesthesia, Group I received 0.2% ropivacaine 0.5 ml/kg and Group II received 0.2% ropivacaine 0.5 ml/kg with 2 ml/kg neostigmine via the caudal route. Heart rate, mean arterial pressure, and pulse oximetry were recorded before induction, after induction, and then every 10 min after caudal anesthesia. Hemodynamic, Toddler-Preschooler Postoperative Pain Scale pain score, and sedation score values were recorded 30 min after extubation and at hours 2, 4, 6, 12, and 24. A pain score greater than 3/10 resulted in administration of rectal paracetamol. Results: There were no differences between the groups in demographic and hemodynamic data, duration of surgery and anesthesia, time to extubation, or sedation scores. The pain scores were significantly lower in Group II at 6 and 12 h (P < 0.05). Time to first analgesic requirement was statistically prolonged in Group II (19.2 +/- 5.5h) when compared with Group 1 (7.1 +/- 5.7 h) (P < 0.05). Total analgesic consumption was statistically larger in Group I (174 +/- 96 mg) when compared with Group II (80 +/- 85.5 mg) (P < 0.05). The incidence of vomiting (3 patients in Group II and 1 patient in Group I) was not statistically significantly different. Conclusions: The authors found that a single caudal injection of neostigmine when added to ropivacaine offers an advantage over ropivacaine alone for postoperative pain relief in children undergoing genitourinary surgery.Öğe A newborn infant with left diaphragm agenesis, radial aplasia and preauricular appendices(Lippincott Williams & Wilkins, 2004) Öner, N; Basaran, ÜN; Yalçin, Ö; Vatansever, Ü; Acunas, BWe report the case of a baby girl born to consanguineous parents who died 36 hours after birth. She had multiple preauricular appendices, right radial aplasia, triphalangeal thumb and several other anomalies. Differential diagnosis included Fryns syndrome, Pallister-Killian syndrome, and hemifacial microsomia. However, since our patient had congenital diaphragmatic hernia, a rare finding in hemifacial microsomia we suggest that she had a variant form of hemifacial microsomia or an undescribed new syndrome.Öğe The protective role of melatonin in experimental hypoxic brain damage(Blackwell Publishing, 2005) Tütüncüler, F; Eskiocak, S; Basaran, ÜN; Ekuklu, G; Ayvaz, S; Vatansever, ÜBackground: It is known that oxygen-derived free radicals play an important role in the pathogenesis of brain injury. Melatonin is a powerful scavenger of the oxygen free radicals. In this study, the protective effect of melatonin against the damage inflicted by reactive oxygen species during brain hypoxia was investigated in newborn rats using biochemical parameters. Methods: For biochemical analyses, the levels of lipid peroxidation product (malondialdehyde ([MDA]), levels of reduced glutathione (GSH) and the activities of superoxide dismutase (SOD) and catalase (CAT) were estimated. Results: After the third day of brain hypoxia, the brain levels of MDA increased. Pretreatment of animals with melatonin abolished the rise in MDA induced by hypoxia. GSH concentration did not increase by pretreatment with melatonin. Additonally, the activities of two antioxidative enzymes (SOD and CAT) decreased after the experimental period with melatonin only preventing the change of CAT. The activity of SOD was not influenced by melatonin administration as expected. Conclusion: In this experimental study, exogenously administered melatonin effectively protected against brain injury by oxidative stress. This protective effect of melatonin may be due to its direct scavenger activity and activation of CAT. Thus, melatonin may potentially be useful in the treatment of neurodegenerative conditions that may involve free radical production, such as perinatal hypoxia.Öğe VACTERL-H with triphalangeal thumb and hypothyroidism in a female patient(Lippincott Williams & Wilkins, 2004) Vatansever, Ü; Basaran, ÜN; Güzel, A; Acunas, B; Balci, SThe association of vertebral, cardiac, renal, limb anomalies, anal atresia, tracheo-esophageal fistula (VACTERL) with hydrocephalus (VACTERL-H) has recently been described. Both X linked and autosomal recessive forms have been described which are mostly indistinguishable clinically. Here we report a female newborn infant with hydrocephalus detected antenatally, oesophageal atresia with tracheo-oesophageal fistula, anal atresia, renal and vertebral anomalies, and triphalangeal thumb as well as primary hypothyroidism.