NCT04219631

Brief Summary

The factors affecting the rate of primary caesarean section births are complex, and identifying interventions to reduce this rate is challenging. Effective interventions targeting at women are mainly represented by Childbirth training workshops, psychoeducation and psychosocial couple-based programs. Considering non medical interventions targeting mothers, the pattern of breathing during labor that can help for vaginal delivery is a controversial topic. There are no data to support a policy of directed maternal breathing or pushing during vaginal delivery. The abdomino-perineal concept was originally a postpartum rehabilitation technique. Currently, applications are increasing. During labor, expiration channeled by a flow regulator device offers support to women enduring the pain of uterine contractions. During the second stage, the expiratory regulated pushing allows a long, efficient and very intuitive push. The use of this regulated expiratory breathing method was introduced in the study unit in January 2018. Despite a positive experience both reported by women and midwives, investigators have so far only subjective feedback without objective measurable clinical impact. As a result, investigators are conducting this scientific study whose main objective is: \- To Evaluate the impact of a regulated expiratory breathing method on childbirth process .

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
120

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Feb 2020

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 19, 2019

Completed
19 days until next milestone

First Posted

Study publicly available on registry

January 7, 2020

Completed
25 days until next milestone

Study Start

First participant enrolled

February 1, 2020

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 15, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 15, 2021

Completed
Last Updated

March 16, 2021

Status Verified

March 1, 2021

Enrollment Period

1.1 years

First QC Date

December 19, 2019

Last Update Submit

March 15, 2021

Conditions

Keywords

deliverycesareanexpirationexerciselabor

Outcome Measures

Primary Outcomes (1)

  • cesarean delivery rate

    percentage of cesarean delivery in each group

    through study completion, an average of 1 year

Secondary Outcomes (8)

  • Duration of first stage of labor

    up to 10 hours . In deed , For each recruited patient this outcome will be measured in minutes between onset of labor and achievement of complete cervical dilation

  • Duration of the second stage of labor

    up to one hour . In deed, investigators will measure for each included patient the time ( minutes ) elapsed from complete cervical dilation and newborn delivery

  • duration of placental delivery

    up to 20 minutes .Investigators will measure for each included patient the time in minutes elapsed between newborn delivery and placental expulsion.

  • Rate of Spontaneous vaginal birth

    through study completion, an average of 1 year

  • Rate of Instrumental vaginal birth

    through study completion, an average of 1 year

  • +3 more secondary outcomes

Study Arms (2)

WINNER- FLOW-URO-MG GROUP

EXPERIMENTAL

After admission to the delivery room, all women assigned to WF + group will have an interview with one of the midwifes responsible for the study. The latter will explain the use of the WINNER FLOW®-URO MG® device which is the expiration mouthpiece used during breathing exercises to ensure a constant ventilatory flowrate. Then, WF+ patients will use the expiratory mouthpiece device during all their childbirth process.

Device: expiration mouthpiece used during breathing exercises to ensure a constant ventilatory flowrate.

NO WINNER-FLOW-URO-MG GROUP

NO INTERVENTION

Women enrolled in WF- group will be managed classically during their child birth process regardless to the study participation.

Interventions

women enrolled in WINNER-FLOW-URO-MG group will freely use the expiratory mouthpiece device during all their childbirth process.

WINNER- FLOW-URO-MG GROUP

Eligibility Criteria

Age18 Years - 46 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Primiparae
  • Singleton pregnancy
  • Gestational age ≥ 37 SA
  • Fetus in cephalic presentation
  • Fetus with a normal weight for a the gestational age
  • Spontaneous onset of labor
  • Early stage of labor (with cervical dilatation under 3 cm)
  • No previous Childbirth training workshops

You may not qualify if:

  • Parity of at least 2
  • Multiple pregnancy
  • Intra uterine fetal demise
  • Previous uterine scar
  • Fetus in Breach presentation
  • Non Vertex cephalic presentation
  • Narrowed pelvic bone diameters
  • A contraindication to vaginal delivery (placenta previa , fibroma previa, …)
  • Previous participation to childbirth training workshops
  • Women in an advanced stage of labor with a cervical dilation upon admission over 3 cm
  • Women requiring epidural anesthesia
  • Refusal of participation

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Mongi Slim University Hospital

Tunis, Sidi Daoued La Marsa, 2045, Tunisia

Location

Related Publications (1)

  • Dimassi K, Halouani A, Ben Zina F, Khemessi N, Triki A. Regulated Expiratory Methods During Childbirth Process: A Randomized Controlled Trial. J Obstet Gynaecol Can. 2024 Mar;46(3):102265. doi: 10.1016/j.jogc.2023.102265. Epub 2023 Nov 7.

MeSH Terms

Conditions

DeathMotor Activity

Condition Hierarchy (Ancestors)

Pathologic ProcessesPathological Conditions, Signs and SymptomsBehavior

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
associate professor

Study Record Dates

First Submitted

December 19, 2019

First Posted

January 7, 2020

Study Start

February 1, 2020

Primary Completion

March 15, 2021

Study Completion

March 15, 2021

Last Updated

March 16, 2021

Record last verified: 2021-03

Locations