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Study aim
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Comparison of Melatonin and Midazolam on preoperative anxiety and intraoperative hemodynamic disorders in patients candidates for cataract surgery.
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Design
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Clinical trial with a control group, with parallel groups, double-blind, randomized, phase 3 on 40 patients. The block method will be used for randomization.
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Settings and conduct
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This study is conducted in Razi Birjand Hospital, South Khorasan Province, Iran. 40 patients are randomly divided into two intervention groups (A-B). Questions related to preoperative spray anxiety will be asked and evaluated by the study administrator.
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Participants/Inclusion and exclusion criteria
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Our study population is patients who are candidates for cataract surgery, referring to the eye surgery department of Razi Hospital in Birjand city in 2022, who will be operated under general anesthesia.
Inclusion criteria will include informed consent, ASA class 1 and 2. Exclusion criteria: drug addiction; lack of cooperation with the study manager; heart failure; uncontrolled blood pressure; use of anticoagulants; use of anti-epileptic drugs; use of immunosuppressive drugs; history of liver or kidney diseases; confusion, dementia, lack of verbal communication, chronic use of narcotics, treatment with barbiturates or antipsychotic drugs; allergies; body mass index below 18.5 or above 30.
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Intervention groups
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The studied patients, candidates for cataract surgery, who were randomly assigned to one of two groups: the first group receiving melatonin (0.1 mg/kg of melatonin tablets manufactured by ASI Italy) one hour before the operation, the second group receiving midazolam (70-80 micrograms/kg intravenous manufactured by Elixir Pharmaceutical Company) will be given one hour before the operation.
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Main outcome variables
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Anxiety; hemodynamics of the patient