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    Effect of sugammadex on recovery from ketamine anesthesia: An experimental study
    (2020) Kayir, Selcuk; Dogan, Guvenc; Yagan, Ozgur; Hanci, Volkan
    Aim: Previous studies have shown cyclodextrins bind to a variety of medications. The hypothesis in our study is to determine whether or not sugammadex interacts with the lipophilic medication of ketamine to shorten the effect duration and ensure earlier recovery. Material and Methods: The study used 24 adult male Sprague-Dawley rats. Rats were randomly divided into 4 equal groups. Each rat was administered 75 mg/kg ketamine intraperitoneal (ip) bolus and then in the fifth minute rats was administered sugammadex at appropriate doses for their group through the lateral vein in the tail. Group C (control group) were administered 15 mL/kg physiologic serum (PS) (n=6), Group Sgdx 16 were administered 16 mg/kg sugammadex (n=6), Group Sgdx 100 were administered 100 mg/kg sugammadex (n=6) and Group Sgdx 1000 were administered 1000 mg/kg sugammadex (n=6). The heart rate, respiratory rate and recovery durations of the rats were recorded. Results: The recovery duration in the Sgdx 100 group was statistically significantly shorter compared to the control group (p=0.026), while the recovery duration in the Sgdx 1000 group was statistically significantly shorter than the control group (p0.001) and the Sgdx 16 group (p=0.015). Heart rate was statistically significantly low in the Sgdx 1000 group compared to the control group (p0.05). Respiratory rates were similar. Conclusion: Our study showed that 100 mg/kg and 1000 mg/kg sugammadex doses significantly shortened recovery. We conclude that there is a need for more research about the interaction between ketamine and sugammadex.
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    Effects of Pelargonium sidoides (UMCA ®) on pulmonary contusion from blunt thoracic trauma in rats
    (2020) Dogan, Gul; Dogan, Guvenc; Karaca, Onur; Ayaz, Ercan
    Aim: The aim of the present study was to evaluate the effect of Pelargonium sidoides (UMCA ®) which was antibacterial, antiviral, anti-inflammatory and antioxidant, on pulmonary contusion (PC) caused by isolated blunt thoracic trauma (BTT) in an experimental rat model.Material and Methods: A total of 24 rats were divided into three groups: control group (CG), sham group (SG), and Pelargonium sidoidesgroup (PSG). PC was induced by isolated BTT for all the groups except the control group. Pelargonium sidoidestreatment was performed by gavage for 72 hours to the PSG after truma. Blood and tissue samples were collected from the groups. Malondialdehyde (MDA), superoxide dismutase (SOD),glutathione (GSH) and arterial blood gas parameters were measured. Lung tissue samples were collected for histopathology.Results: Histopathologically, alveolar congestion, hemorrhage,edema,disruption and neutrophil infiltrationwere significantly higher in SG when compared with CG(p0.001, p=0.007, p=0.040, p=0.003, p=0.001). Leukocyte infiltration was significantly decreased in PSG when compared with SG (p=0.025). Biochemically, MDA level was significantly higher in SG than in CG (p0.001) and GSH level was significantly lower in SG than in CG (p0.001). MDA level was significantly lower in PSG than in SG (p=0.002). In blood gas parameters PH and PO2 level was significantly higher in PSG than in SG (p=0.013, p0.001) and PCO2 level was significantly lower in PSG than in SG (p0.001).Conclusion: PS prevents further injury by decreasing leukocyte infiltration,MDAand regulating ventilation -perfusion in lung contusions. PS may have a role in the progression of inflammation but not in preventing the pathologic disruption of pulmonary parenchyma exactly.