Wos Açık Erişimli Yayınlar

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2015 - 20162

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Author: search.filters.author.Cok, Oya YalcinHas files: Yes

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    Effect of low dose dexmedetomidine premedication on propofol consumption in geriatric end stage renal disease patients
    (2015) Ergeneoglu, Pinar; Akin, Sule; Bali, Cagla; Eker, Hatice Evren; Cok, Oya Yalcin; Aribogan, Anis; 26323728
    Background and objective: Sedation in dialysis dependent end-stage renal disease patients requires caution as a result of performing high doses of sedatives and its complications. Multidrug sedation regimens might be superior and advantage on lesser drug consumption and by the way adverse events which occur easily in end-stage renal disease patients. We evaluated the effects of dexmedetomidine premedication on propofol consumption, sedation levels with Observer's Assessment of Alertness and Sedation scores and the bispectral index and the hemodynamic changes, potential side effects in geriatric patients with end-stage renal disease who underwent hip fracture surgery under spinal anesthesia. Method: In this randomized, controlled, double-blind study 60 elderly patients (age >= 65 years) with end-stage renal disease and hip fracture scheduled for anterograde femoral intramedullary nailing were assigned to groups that received either intravenous saline infusion (Group C) or dexmedetomidine 0.5 mu g/kg/10 min infusion for premedication (Group D). All the patients received propofol infusion after the induction of the spinal anesthesia. Results: Total propofol consumption, propofol dose required for targeted sedation levels according to Observer's Assessment of Alertness and Sedation scores and bispectral index levels, recovery times were significantly lower in Group D (p< 0.001). The time to reach to Observer's Assessment of Alertness and Sedation score 4 and to achieve bispectral index <= 80 was significantly lower in Group C compared with Group D (p< 0.001). Adverse events were similar in both groups. Conclusion: Dexmedetomidine premedication lowers intraoperative propofol consumption to maintain targeted level of sedation. Therefore low dose dexmedetomidine premedication in addition to propofol infusion might be an alternative in geriatric patients with end-stage renal disease for sedation. (c) 2015 Sociedade Brasileira de Anestesiologia. Published by Elsevier Editora Ltda. All rights reserved.
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    Comparison of the postoperative analgesic effects of naproxen sodium and naproxen sodium-codeine phosphate for arthroscopic meniscus surgery
    (2016) Balli, Cagla; Ergenoglu, Pinar; Ozmete, Ozlem; Akin, Sule; Ozyilkan, Nesrin Bozdogan; Cok, Oya Yalcin; Aribogan, Anis; 26832827
    Background and objectives: Nonsteroidal anti-inflammatory drugs (NSAIDs) are frequently used to control arthroscopic pain. Addition of oral effective opioid "codeine" to NSAIDs may be more effective and decrease parenteral opioid consumption in the postoperative period. The aim of this study was to compare the efficacy and side effects of naproxen sodium and a new preparation naproxen sodium-codeine phosphate when administered preemptively for arthroscopic meniscectomy. Methods: Sixty-one patients were randomized into two groups to receive either oral naproxen sodium (Group N) or naproxen sodium-codeine phosphate (Group NC) before surgery. The surgery was carried out under general anesthesia. Intravenous meperidine was initiated by patient-controlled analgesia (PCA) for all patients. The primary outcome measure was pain score at the first postoperative hour assessed by the Visual Analogue Scale (VAS). Sedation assessed by Ramsey Sedation Scale, first demand time of PCA, postoperative meperidine consumption, side effects and hemodynamic data were also recorded. Results: The groups were demographically comparable. Median VAS scores both at rest and on movement were significantly lower in Group NC compared with Group N. except 18th hour on movement (p < 0.05). The median time to the first demand of PCA was shorter in Group N compared with Group NC (p < 0.001). Meperidine consumption was higher in Group N compared with Group NC (p < 0.001). There was no difference between groups with respect to side effects (p > 0.05). Conclusions: The combination of naproxen sodium-codeine phosphate provided more effective analgesia than naproxen sodium and did not increase side effects. (C) 2014 Sociedade Brasileira de Anestesiologia. Published by Elsevier Editora Ltda. All rights reserved.