IRCT20100124003146N5 IRCT 2019-02-10 Kashan University of Medical Sciences The effect of peppermint essence inhalation on reduce the severity of nausea and vomiting in patients after open heart surgery The effect of peppermint essence inhalation on reduce the severity of nausea and vomiting in patients after open heart surgery 2018-12-21 anticipated 60 Complete https://irct.ir/trial/3196 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Other design features: No, Randomization description: At the beginning of each day, in order to prevent the revelation of the intervention and essence odor, it will be determined by the throwing of the coin and then randomly assigned to which of the intervention or control groups on the same day. Then patients who undergo surgery according to the routine are randomly assigned in the intervention or control groups, Blinding description: In this study because the essential ingredient in the ward may be emitted, the cases of groups will be taken from each other in different days. Consequently, the samples in different groups will not be aware of the type of intervention. Also analyzer will not be aware on the type of intervention in groups. N/A nausea and vomiting. Intervention 1: Patients in the intervention group receive peppermint essence inhalation in 3 times. Intervention 2: Patients in the control group in 3 times receive the normal salin as placebo. No - There is not a plan to make this available Justification or reason for not sharing IPD is The release plan is not yet known