Does aromatherapy during neuraxial labor analgesia enhance relaxation? An evaluation using the Analgesia/Nociception Index (ANI)

Effects of Aromatherapy on Parasympathetic Activity in Parturients Under Neuraxial Labor Analgesia A Prospective Interventional Study - AROMA-ANI

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000059312

Enrollment

Registered

2025-10-08

Start date

2025-10-08

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pregnancy

Interventions

Aromatherapy

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: Parturients at Kitasato University Hospital who are scheduled for induction of labor with neuraxial analgesia, are at > = 37 weeks gestation, have ASA Physical Status II, and provide written informed consent.

Exclusion criteria

Exclusion criteria: Exclusion Criteria 1.Parturients in whom neuraxial analgesia is not feasible 2.Parturients unable to communicate effectively 3.Parturients on chronic medication (excluding vitamins or other supplements) 4.Parturients with a psychiatric disorder requiring treatment 5.Parturients with pre-existing ECG abnormalities 6.Parturients with hypertensive disorders of pregnancy

Design outcomes

Primary

Measure	Time frame
Comparison of ANI before and after aromatherapy in parturients undergoing induction of labor under neuraxial analgesia (PRE vs POST).	—

Secondary

Measure	Time frame
Blood pressure, heart rate, labor progress (e.g., cervical dilation), and sensory block level.	—

Countries

Japan

Contacts

Public ContactSHUNSUKE HYUGA

Kitasato university Department of Anesthesiology, School of Medicine

shyuga@kitasato-u.ac.jp042-778-8606

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026