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Aromatherapy in Management of Postoperative Nausea

October 23, 2019


This study is looking to determine the effectiveness of using peppermint oil aromatherapy vs. traditional antiemetic (anti-nausea) drugs in relieving post-operative nausea in patients who have undergone bariatric surgery. The study will also look at both the patient satisfaction and the cost-effectiveness of using peppermint oil aromatherapy. This is a randomized study, with a control group receiving only traditional antiemetic drugs, and an experimental group receiving both peppermint oil aromatherapy and traditional antiemetics as needed.


Study Information 

This is a randomized, interventional trial with an estimated 72 participants. The study began on June 8th 2017 and will be ending in December 2019. 


Inclusion Criteria

  • Bariatric surgery candidate on 7-Lime at Lancaster General Hospital
  • Scheduled for laparoscopic sleeve gastrectomy and laparoscopic Roux-En-Y (RNY) procedures
  • Between the ages of 18 and 70
  • Surgical patient of either Dr. James Ku or Dr. Joseph McPhee


Exclusion Criteria

  • History of excessive sensitivity to peppermint oil, allergic response to peppermint oil or a stated preference against aromatherapy
  • Not alert and oriented or unable to follow directions
  • Severe reactive airway disease such as asthma or chronic obstructive pulmonary disease (COPD)
  • Possible exclusion for severe hypertension or atrial fibrillation



This study is taking place at Lancaster General Hospital, Lancaster, Pennsylvania, United States, 17604. For further information please contact Aarin Deibler, RN, BSN on (717) 544-7762 or at

Sponsors and Collaborators

This study is sponsored by Lancaster General Hospital

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