Recruiting

Aromatherapy

Sponsor:

Kaiser Permanente

Code:

NCT07771205

Conditions

Postoperative Pain

Preoperative Anxiety

Patient Experience

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Accepted

Interventions

Aromatherapy

Unscented Pod

Study Details

Brief summary:

Aromatherapy's Impact on Preoperative Anxiety, Postoperative Pain, and Patient Experience

Introduction:

Surgery often results in increased levels of anxiety and postoperative pain. Postoperative pain relief is typically treated with opioids. However, evidence shows that treatment with opioids alone is often insufficient to provide adequate levels of pain relief and can contribute to the growing opioid crisis. Alternative pain management strategies that combine narcotic medication with complementary therapies can improve comfort as well as decrease preoperative anxiety. Aromatherapy is an evidence-based complementary therapy used to decrease preoperative anxiety and postoperative pain that has been underutilized in ambulatory surgical centers. This study aimed to evaluate the impact Aromatherapy has as an anxiety and pain management strategy. Subsequently, evidence also supports that improving the patient experience can lead to better surgical outcomes.

Study Aim:

This study will examine the effect that aromatherapy has on preoperative anxiety, postoperative pain and patient experience

Study Question(s):

In perioperative patients at Kaiser Stockton Ambulatory Surgery Unit, how does aromatherapy, compared with standard practice, affect preoperative anxiety?

In perioperative patients at Kaiser Stockton Ambulatory Surgery Unit, how does aromatherapy, compared with standard practice, affect postoperative pain?

In perioperative patients at Kaiser Stockton Ambulatory Surgery Unit, how does aromatherapy, compared with standard practice, affect patient experience?

Study Method: Prospective Experimental Randomized Control Clinical Trial

Study Duration: 18 months

Study Process: The participants will be recruited through their Pre-surgery interview, at which time a brief explanation will be given on aromatherapy, its potential to reduce preoperative anxiety and postoperative pain, and increase the patient experience. The study design and protocol will also be described. Should the participants elect to participate in this study, they will be randomly assigned using a computer program. Upon arrival for surgery, informed consent will be obtained. Anxiety and pain will be assessed for pre- and post- intervention and just before transferring to the operating room (OR). Upon arrival to the Post-Anesthesia Care Unit (PACU), pain will be assessed in 15-minute intervals until discharge. Anxiety will be reassessed at discharge. Experience will be assessed 2 weeks after discharge.

Data Analysis:

A one-way Multivariate Analysis of Variance (MANOVA) will be used to assess the impact of aromatherapy on pain, anxiety, and satisfaction.

Conclusions:

This study aims to add to the body of knowledge of how the incorporation of aromatherapy can impact patient outcomes.

Conditions

Postoperative Pain

Preoperative Anxiety

Patient Experience

Study ID

NCT07771205

Start date

Jul 7, 2026

Status verified date

Jul, 2026

Completion date

Jan, 2028

Anticipated

Primary completion date

Jan, 2028

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Accepted

Inclusion Criteria:

  • Able to speak, read, understand, and write in English or Spanish
  • Undergoing a surgical procedure under general anesthesia
  • Able to provide informed consent independently

Exclusion Criteria:

  • Cataract and other ocular surgeries
  • Allergies to aromatherapy ingredients
  • Chronic pain management
  • Olfactory deficits

Study Design

Enrollment

286 participants

Anticipated

Allocation

Randomized

Intervention Model

Parallel Assignment

Primary purpose

Supportive Care

Interventions and Outcome Measures

Arms

active comparator: Scented Aromatherapy Pod

Aromatherapy Pod

placebo comparator: Unscented Aromatherapy Pod

Unscented Pod

Interventions

Aromatherapy

An aromatherapy pod with the blend of Lavendar and Sweet Orange, which has been identified as aiding with stress, pain, and anxiety.

Unscented Pod

An unscented "aromatherapy" pod that looks identical to the active intervention.

Primary outcome measure

  • Preoperative Anxiety [ Time Frame: Prior to the intervention, the participant will assess their baseline anxiety using the Preoperative Anxiety Scale-7, re-evaluated prior to transfer to the OR after intervention is applied, and again at discharge. All on Day 1, date of surgery. ]
  • Verbalized Postoperative Pain [ Time Frame: Assessed upon arrival to preop and prior to intervention, for a baseline. Reassessment after intervention and prior to transfer to OR, upon arrival to PACU, 15-minute intervals until ready to discharge, and at discharge. All on Day 1, date of surgery. ]
  • Patient Experience [ Time Frame: 1 week after date of surgery. The questionnaire should take 5- 10 minutes to complete. The patient is called at home by a study nurse. ]
  • Non-verbal Postoperative Pain [ Time Frame: Assessed upon arrival to preop and prior to intervention, for a baseline. Reassessment after intervention and prior to transfer to OR, upon arrival to PACU, 15-minute intervals until ready to discharge, and at discharge. All on Day 1, date of surgery. ]

Central Contacts and Locations

Locations

Kaiser Permanente Stockton Ambulatory Surgery Unit

Recruiting

Stockton, California, United States, 95210

Contacts

Principal Investigator:

Kristie L Silva, MSN

More Information

Sponsor

Kaiser Permanente

Last update posted

Aug 18, 2026

Last verified

Jul, 2026

Keywords

  • Preoperative anxiety
  • surgery
  • anxiety
  • pain
  • postoperative pain
  • ambulatory
  • experience
  • patient experience
  • aromatherapy
  • complementary alternative medicine
  • nurse-led

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by Kaiser Permanente on 2026-08-18.