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IRCT20260514069397N1 IRCT 2026-06-02 Khoram-Abad University of Medical Sciences The Effect of Citrus aurantium Aroma on Anxiety and Duration of Labor Stages in Nulliparous Women The Effect of Citrus aurantium Aroma on Anxiety and Duration of Labor Stages in Nulliparous Women 2026-07-20 anticipated 100 Recruiting https://irct.ir/trial/90175 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Used, Assignment: Parallel, Purpose: Supportive, Randomization description: Participants enrolled in the study will be allocated to study groups using the permuted block method. Block sizes of 4 and 6 will be considered. Randomization will be performed using the blockrand package in R software. 3 Anxiety and the duration of labor stages. Intervention 1: Intervention group: . In the intervention group, 4 drops of spring orange essential oil are added to 300 ml of water and in the control group, 4 drops of normal saline are added to 300 ml of water and are continuously diffused through an aroma diffuser throughout the entire labor process. Anxiety intensity will be measured 30 minutes after aromatherapy at 3-4 and 6-8 cm dilations. The duration of labor will be measured from 3-4 cm dilation to 10 cm, from 10 cm dilation to delivery of the baby, and from delivery of the baby to delivery of the placenta in both groups. Intervention 2: Control group: In the control group, 4 drops of normal saline are poured into 300 ml of water and continuously diffused through an aroma diffuser throughout the entire duration of labor, and the intensity of anxiety will be measured 30 minutes after aromatherapy at dilations of 3-4 and 6-8 cm. The duration of labor will be measured from dilation of 3-4 cm to 10 cm, from dilation of 10 cm to delivery of the baby, and from delivery of the baby to delivery of the placenta in both groups. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is no further information
public Soheila Pirdade Beyranvand
kamalvand
Khoramabad Iran (Islamic Republic of) 6813833946 +98 66 0333 3302 kimia_n72@gmail.com Khoram-Abad University of Medical Sciences scientific Soheila Pirdadeh Beyranvand
Kamalvand
Khoramabad Iran (Islamic Republic of) 6813833946 +98 66 3330 2033 kimia_n72@gmail.com Khoram-Abad University of Medical Sciences Iran (Islamic Republic of) Iranian ethnicity Primiparous Singleton pregnancy with a gestational age of 37 to 42 weeks Maternal age between 18 and 35 years Cervical dilation of 3–4 cm At least 2 to 3 spontaneous uterine contractions lasting 40–45 seconds within 10 minutes Regular fetal heart rate between 110 and 160 beats per minute Normal maternal vital signs Normal fetal movements according to the mother’s report Body mass index of 18.5–29.9 kg/m² Height greater than 145 cm Estimated fetal weight between 2500 and 4000 g Compatibility of the fetal head with the maternal pelvis Consistency of fundal height with gestational age Cephalic fetal presentation Intact amniotic sac 18 years 35 years Female Presence of medical and obstetric complications in the current pregnancy Use of anti-anxiety medications and supplements Fetal distress or disorder in labor progression Development of sensitivity to orange blossom essential oil Presence of olfactory disorders, allergies, or previous unpleasant experiences with specific scents Use of analgesic or anti-anxiety medication at least 3 hours before the start of the intervention Addiction to tobacco, narcotics, or alcoholic beverages Presence of any contraindication to vaginal delivery Need for labor augmentation with oxytocin or other methods Need for emergency cesarean section Need to use other pharmacological or non-pharmacological pain relief methods Experiencing a major adverse event during the past 3 months Treatment - Drugs Placebo Intervention group: . In the intervention group, 4 drops of spring orange essential oil are added to 300 ml of water and in the control group, 4 drops of normal saline are added to 300 ml of water and are continuously diffused through an aroma diffuser throughout the entire labor process. Anxiety intensity will be measured 30 minutes after aromatherapy at 3-4 and 6-8 cm dilations. The duration of labor will be measured from 3-4 cm dilation to 10 cm, from 10 cm dilation to delivery of the baby, and from delivery of the baby to delivery of the placenta in both groups. Control group: In the control group, 4 drops of normal saline are poured into 300 ml of water and continuously diffused through an aroma diffuser throughout the entire duration of labor, and the intensity of anxiety will be measured 30 minutes after aromatherapy at dilations of 3-4 and 6-8 cm. The duration of labor will be measured from dilation of 3-4 cm to 10 cm, from dilation of 10 cm to delivery of the baby, and from delivery of the baby to delivery of the placenta in both groups. Intensity of anxiety during the first stage of labor. Timepoint: Before aromatherapy and twice after the intervention at dilations of 3 to 4 and 6 to 8 cm. Method of measurement: Spielberger Anxiety Assessment Questionnaire. Labor time. Timepoint: Every one to two hours. Method of measurement: Examination and registration in the examination form. Khoram-Abad University of Medical Sciences Approved 2026-05-12 “Ethics Committee of Lorestan University of Medical Sciences Moallem St., Anoushirvan Rezaei Square, Lorestan University of Medical Sciences Headquarters khoramabad Lorestan Iran (Islamic Republic of)