Yazar "Colak, Y. Z." seçeneğine göre listele

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    Comparison of hemoglobin levels via measured with pulse co-oximeter and with lab test during living donor hepatectomy
    (Lippincott Williams & Wilkins, 2018) Colak, Y. Z.; Bicakcioglu, M.; Erdogan, M. A.; Toprak, H. I.; Yilmaz, S.
    [Abstract Not Available]
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    Four wavelengths cerebral oximetry was not affected by hyperbilirubinemia
    (Lippincott Williams & Wilkins, 2019) Toprak, H., I; Colak, Y. Z.; Erdogan, M. A.; Yilmaz, S.
    [Abstract Not Available]
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    Ketofol (mixture of ketamine and propofol) administration in electroconvulsive therapy
    (Australian Soc Anaesthetists, 2012) Kayhan, G. Erdogan; Yucel, A.; Colak, Y. Z.; Ozgul, U.; Yologlu, S.; Karlidag, R.; Ersoy, M. O.
    The aim of this study was to evaluate the effect of a ketamine:propofol combination ('ketofol') for electroconvulsive therapy on seizure activity, haemodynamic response and recovery parameters, and to compare with these with the effects of propofol alone. Twenty-four patients underwent a total of 144 electroconvulsive therapy sessions, allocated in this prospective, double-blind, crossover study. Patients were randomly assigned to receive 1 mg/kg ketofol (0.5 mg/kg propofol plus 0.5 mg/kg ketamine) or 1 mg/kg propofol 1% for anaesthesia induction. Seizure duration and quality, haemodynamic data, recovery parameters and side-effects were recorded and analysed between groups. Both motor and electroencephalography seizure durations in the ketofol group (29 +/- 17 and 41 +/- 17 seconds, respectively) were similar to that in the propofol group (28 +/- 13 and 38 +/- 16 seconds, respectively). Postictal suppression index was higher in the ketofol group (89.63 +/- 7.88) than in the propofol group (79.74 +/- 14.6) (P <0.05). In the ketofol group, heart rate after the seizure ended and mean arterial pressures, recorded at 0 and 5 minutes after the seizure ended, were higher than in the propofol group. Time to obeying commands was longer in the ketofol group (P <0.05). There were no untoward psychological reactions following ketofol. Although no superiority to propofol in terms of seizure duration, haemodynamic or recovery parameters was found, the ketofol mixture selected in our study provided better seizure quality than propofol. We conclude that ketofol can be an alternative strategy to enhance the seizure quality and clinical efficiency of electroconvulsive therapy.
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    Recruitment maneuver in a patient with hepatopulmonary syndrome during liver transplantation surgery
    (Lippincott Williams & Wilkins, 2019) Colak, Y. Z.; Ucar, M.
    [Abstract Not Available]
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    The Effect of Sevoflurane and Desflurane on Clara Cell Protein in the Lung in Liver Transplant Donors
    (Wolters Kluwer Medknow Publications, 2026) Teker, N.; Ucar, M.; Bulut, N.; Teker, A. B.; Colak, Y. Z.; Demiroz, D.; Erdogan, M. A.
    Background:Inhalation anesthetics are known to have different effects on the respiratory system than anesthesia. Clara cells in the respiratory epithelium, which protect the lungs, play a role in the detoxification of xenobiotics and oxidant gases, control of inflammation, mucociliary clearance of environmental agents, and proliferation and differentiation of ciliated cells. Serum concentrations of Clara Cell Protein (CC16) have been used as indicators of lung injury in various acute and chronic lung diseases.Aim:In this study, we aimed to investigate the effects of sevoflurane and desflurane inhalation anesthetics on CC16 in liver transplant donors scheduled for hepatectomy.Methods:A total of 75 patients aged 18-65 years, ASA I-II, and liver transplant donors undergoing right lobe hepatectomy were enrolled in this prospective, randomized clinical trial. Patients were evaluated in three groups: Group sevoflurane (Group S), group desflurane(Group D), and group control(Group K). Anesthesia was induced with 2 mg/kg propofol and 1 mu g/kg remifentanil in all groups and muscle relaxation was achieved with 0.6 mg/kg rocuronium. In addition to the FiO2:0.4 air/O2 mixture, Group S was ventilated with 1-2% sevoflurane and Group D was ventilated with 6-8% desflurane. Group K: Anesthesia maintenance was adjusted to 10 mg/kg/h for the first 10 min, 8 mg/kg/h for the next 10 min, 6 mg/kg/h propofol infusion, and 3 mu g/kg/h remifantanil. Patients in this group were ventilated with an air/O2 mixture with an FiO2 of 0.4, and inhalation anesthetics were not used. Blood samples for CC16 were obtained from all patients preoperatively, intraoperatively at 1 hour and immediately after the surgical procedure was completed.Results:There was a significant difference between the groups in terms of preoperative, 1st hour and pre-extubation CC16 values. CC16, 1st hour and pre-extubation CC16 values were significantly lower in Group S than in Group K.Conclusion:When used at clinical doses, sevoflurane and desflurane had no adverse effects on CC16, an important marker of acute airway injury, in healthy lungs. We found that sevoflurane decreased the CC16' level more than desflurane.