Determine the effectiveness of peppermint oil aromatherapy in relieving post-operative nausea in the bariatric surgery patient population.

Healthy weight management and use of essential oils and aromatherapy as natural interventions to manage health-related issues are significantly growing interests. One frequent intervention for healthy weight management is bariatric surgery. In the post-operative period following bariatric surgery, nausea is a common consequence. Peppermint oil aromatherapy is an effective intervention for relieving nausea and other gastrointestinal symptoms in the bariatric and surgical population. This study has multiple aims. One is to determine effectiveness of peppermint oil aromatherapy in relieving post-operative nausea in the bariatric surgery patient population. A second aim is to establish relative cost-effectiveness of peppermint oil aromatherapy versus traditional anti-emetic drug therapies. A third is to determine whether peppermint oil aromatherapy increases patient satisfaction versus anti-emetic drug therapies. This is a randomized study with control and experimental groups. The control group will receive no peppermint oil aromatherapy and only traditional anti-emetics as needed. The experimental group will receive peppermint oil aromatherapy and traditional anti-emetics as needed.

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 ages of 18 and 70
• Surgical patient of either Dr. James Ku and Dr. Joseph McPhee

Exclusion Criteria:

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