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Randomized Controlled Trial
. 2014 Feb;29(1):12-9.
doi: 10.1016/j.jopan.2013.09.008.

Controlled breathing with or without peppermint aromatherapy for postoperative nausea and/or vomiting symptom relief: a randomized controlled trial

Debra S Sites, Nancy T Johnson, Jacqueline A Miller, Pauline H Torbush, Janis S Hardin, Susan S Knowles, Jennifer Nance, Tara H Fox, Rebecca Creech Tart
Randomized Controlled Trial

Controlled breathing with or without peppermint aromatherapy for postoperative nausea and/or vomiting symptom relief: a randomized controlled trial

Debra S Sites et al. J Perianesth Nurs. 2014 Feb.

Abstract

Purpose: With little scientific evidence to support use of aromatherapy for postoperative nausea and/or vomiting (PONV) symptoms, this study evaluated controlled breathing with peppermint aromatherapy (AR) and controlled breathing alone (CB) for PONV relief.

Design: A single blind randomized control trial design was used.

Methods: On initial PONV complaint, symptomatic subjects received either CB (n = 16) or AR (n = 26) intervention based on randomization at enrollment. A second treatment was repeated at 5 minutes if indicated. Final assessment occurred 10 minutes post initial treatment. Rescue medication was offered for persistent symptoms.

Findings: Among eligible subjects, PONV incidence was 21.4% (42/196). Gender was the only risk factor contributing to PONV symptoms (P = .0024). Though not statistically significant, CB was more efficacious than AR, 62.5% versus 57.7%, respectively.

Conclusions: CB can be initiated without delay as an alternative to prescribed antiemetics. Data also support use of peppermint AR in conjunction with CB for PONV relief.

Keywords: aromatherapy; controlled breathing; peppermint; postoperative nausea and/or vomiting.

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