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Study aim
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Effect of premedication with methylprednisolon and Dexamethason will be evaluated on post injectional pain of propofol.
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Design
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Sampling is done by continuous method and to come in order of patients. First, an 18 guage intravenous cannula will be embedded on vein of dorsal of hand. Patients are divided to three groups consist on M (methylprednisolon), D (dexamethason) and NS (normal saline). This study is a randomized, double blind clinical trial with control group. Sample size of this study is 120 cases.
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Settings and conduct
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This study is performed in Emam Reza hospital in Tabriz. After embedding of venous catheter and hold up upper limb to 15 seconds, the tornike to close forearm. In the NS group, 5 mililiter normal saline, M group, 125 miligram in 5 mililiter volume with normal saline and D group, 0.25 or 0.5 miligram per kilogram in 5 mililiter volume with normal saline, will be injected. After 30 seconds, the tornike will be opened and 5 mililiter propofol 1% will be injected in 15 seconds. Then, two anesthsiologist will be calculated rate of pain by 4 number verbal rating scale that presented by McCriffick and measurement Rochette criteria in 5, 10,15 and 20 seconds after propofol injection. Patients and two anesthsiologist will be blindfolding.
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Participants/Inclusion and exclusion criteria
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Enterance: Patients under elective surgery, I and II ASA Class, between 15 to 65 years old; Exit: Patients with cardiovascular, hepatic, renal and psychiatric disease, need for RSI of anesthesia and using sedative drugs in the last 24 hours.
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Intervention groups
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Three interventional groups are patients under injection of Methylprednisolon, Dexamethasone and Normal Saline.
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Main outcome variables
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Primary event: incidence of moderate to severe pain after propofol injection. Secondary event: decrease post injectional pain of propofol after premedication with methylprednisolon and dexamethasone.