Yazar "Erel, Ozcan" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim Yok
    Öğe
    Assessment of fetal antioxidant and oxidant status during different anesthesia techniques for elective cesarean sections
    (Medknow Publications & Media Pvt Ltd, 2015) Karabayirli, Safinaz; Keskin, Esra Aktepe; Kaya, Ahmet; Koca, Cemile; Erel, Ozcan; Demircioglu, Ruveyda Irem; Muslu, Bunyamin
    Background: We aimed to investigate the effects of general, spinal and epidural anesthesia on fetal total antioxidant status (TAS) and total oxidant status (TOS), and oxidative stress index (OSI) during elective cesarean section in this study. Materials and Methods: Forty-seven parturients scheduled for elective cesarean section were randomly allocated into three groups: Group spinal (n = 15), group epidural (n = 17), and group general (n = 15), This prospective randomized study was performed in Faculty of Medicine, Turgut Ozal University, Turkey. After the baby was delivered; TAS, TOS levels, and arterial blood gases parameters were analyzed in an umbilical arterial blood sample. OSI values are calculated by a ratio of TOS to the TAS. Results: The levels of TAS and TOS in umbilical arterial blood sample were not statistically different among three. However, OSI values were significantly different among the three groups (P = 0.042). Median OSI values is 24 (interquartile range [IQR], 2-37) in group spinal, 19 (IQR, 4-44) in group epidural, and 8 (IQR, 4-36) in group general. There was no significant difference in OSI values in the comparison of group spinal with group general and group epidural, but it was significantly lower in group general when compared with group epidural with Bonferroni correction (P = 0.017). Umbilical cord arterial blood gas values (pH, PaCO2 , PaO2 , SaO(2) , HCO3 , and CtO(2) ), glucose, lactate, and hemoglobin levels were similar in three groups. Conclusion: General anesthesia may be more favorable than epidural in those undergoing cesarean section when fetal oxidative status gains importance.
  • Küçük Resim Yok
    Öğe
    Relationship between oxidant and antioxidant activity in hyperemesis gravidarum
    (Taylor & Francis Ltd, 2014) Onaran, Yuksel; Kafali, Hasan; Duvan, Candan Iltemir; Keskin, Esra; Celik, Hakim; Erel, Ozcan
    Objective: To evaluate oxidant and antioxidant activity in patients with hyperemesis gravidarum (HG) by using serum total antioxidant activity (TAO), total free sulfhydryl (-SH), ceruloplasmin and lipid hydroperoxide (LOOH) levels. Materials and methods: In a cross-sectional trial, blood samples were collected from patients with HG (n = 25) and healthy pregnant women (n = 25) as control group. Serum TAO activities, -SH levels and LOOH levels and ceruloplasmin levels were measured. Results: Serum TAO activity was found to be significantly lower (p = 0.003) in patients with HG compared with controls. However, serum -SH levels, LOOH levels and ceruloplasmin levels did not change significantly in patients with HG compared to controls. Conclusion: Presence of oxidative stress in HG patients depends more on reduced antioxidant activities than increased oxidative stress.