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Study aim
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Determining and comparing the effect of normal saline gargling and tinctured solution of sage and marshmallow plants on the occurrence of sore throat, cough, hoarseness and severity of sore throat after endotracheal intubation in patients under general anesthesia
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Design
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The clinical trial has a control group, with two parallel groups, three blind strains, randomized, phase 3 on 114 patients. A table of random numbers was used for randomization.
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Settings and conduct
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This research will be a three-blind clinical trial with three groups, which will be conducted on 114 (5) patients under general anesthesia.
A table of random numbers will be used for randomization.
The solutions will be prepared in opaque containers with the names A, B and C. Trained research assistants were blinded to the contents of the containers. Therefore, research assistants as well as patients and statistical analysts will be blinded to the groups (triple-blind).
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Participants/Inclusion and exclusion criteria
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• Patients under general anesthesia with intratracheal intubation • Not having a history of allergy to herbal medicine (especially the components of sage and Alcea plants or other plants from the same family)
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Intervention groups
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In the first intervention group, gargling 15-20 drops of normal saline, in the second intervention group, gargling 15-20 drops of a tincture of sage and marshmallow diluted in half a glass of water, and in the control group, gargling 15-20 drops of distilled water as a placebo for the patients 2 hours before the start of surgery and immediately before anesthesia (before prescribing any premed or pre-anesthetic medicine to the patient).
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Main outcome variables
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Tinctured solution of Sage and Alcea
Normal saline 0.9%
Placebo