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Effect of Amniotic Fluid Odor on Newborn Adaptation and Stress (AFO-NAS)

The Effect of Amniotic Fluid Odor on Postnatal Adaptation and Stress in Healthy Newborns Born by Cesarean Section

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07736235
Acronym
AFO-NAS
Enrollment
70
Registered
2026-07-30
Start date
2022-12-16
Completion date
2026-08-15
Last updated
2026-07-30

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

Conditions

Postnatal Adaptation and Stress in Healthy Newborns Born by Cesarean Section

Brief summary

This study aims to determine whether exposure to the odor of a newborn's own amniotic fluid affects postnatal adaptation and stress in healthy newborns born by cesarean section. Newborns will be randomly assigned to either an intervention group or a control group. Newborns in the intervention group will be exposed to a sterile material moistened with their own amniotic fluid, while newborns in the control group will be exposed to a sterile material moistened with distilled water. Postnatal adaptation, physiological responses, and stress levels will be evaluated at predetermined time points.

Interventions

OTHERAmniotic Fluid Odor Sterile Distilled Water Odor

In the intervention group, healthy newborns born by cesarean section will be exposed to the odor of their own amniotic fluid shortly after birth. Amniotic fluid collected during delivery will be applied to a sterile material and positioned near the newborn's nose without direct contact with the skin or airway. The intervention will be administered according to a standardized study protocol. The newborns' postnatal adaptation, physiological parameters, and stress responses will be assessed at predetermined time points.

Sponsors

Aydin Adnan Menderes University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
SINGLE (Investigator)

Eligibility

Sex/Gender
ALL
Age
38 Weeks to 42 Weeks
Healthy volunteers
Yes

Inclusion criteria

* Newborns delivered by cesarean section at 38-42 weeks of gestation * Absence of a maternal history of high-risk pregnancy, including eclampsia, preeclampsia, or gestational diabetes

Exclusion criteria

* Birth weight below 2,500 g * Birth weight of 4,000 g or above * Apgar score below 7 at either 1 or 5 minutes after birth * Presence of a congenital anomaly * Admission to the neonatal intensive care unit during the early postnatal period

Design outcomes

Primary

MeasureTime frameDescription
Heart Rate:beats per minuteAt 30 minutes after birthThe newborn's heart rate will be measured using a pulse oximeter and recorded as beats per minute. Heart rate values will be compared between the amniotic fluid odor group and the sterile distilled water odor group.
Respiratory Rate: breaths per minuteAt 30 minutes after birthThe newborn's respiratory rate will be assessed by counting respiratory movements for one minute and recorded as breaths per minute. Respiratory rate values will be compared between the study groups.
Peripheral Oxygen Saturation:percentageAt 30 minutes after birthThe newborn's peripheral oxygen saturation will be measured using a pulse oximeter and recorded as a percentage. Oxygen saturation values will be compared between the study groups.
Body Temperature: degrees CelsiusAt 30 minutes after birthThe newborn's body temperature will be measured using a digital thermometer and recorded in degrees Celsius. Body temperature values will be compared between the study groups.

Secondary

MeasureTime frameDescription
Neonatal Stress Level30 minutes after birthNeonatal stress will be assessed using the Neonatal Stress Scale developed by Ceylan and Bolışık. The scale consists of eight subgroups: facial expression, body color, respiration, activity level, consolability, muscle tone, extremities, and posture. Each subgroup is scored from 0 to 2, resulting in a total score ranging from 0 to 16. A score of 0 indicates no stress, and higher scores indicate a higher level of neonatal stress and therefore a worse outcome.

Countries

Turkey (Türkiye)

Contacts

CONTACTfunda güler, pHd
fundaguler@adu.edu.tr+905334888321
STUDY_CHAIRzekiye karaçam, prof

Aydin Adnan Menderes University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 31, 2026