Historically, pain management during childbirth has been a primary concern in the obstetric community. In recent decades, childbirth care providers have been witnessing, especially in developed countries, a real revolution in terms of approaches around this unique moment of birth. This is how perinatal professionals are no longer concerned only with medical follow-up and the smooth running of pregnancy or the well-being of the newborn, but also with overall support for women by promoting their active participation in the childbirth process. To this end, several methods of pain management are offered to women during labor. The more documented are: locoregional (epidural) anesthesia and acupuncture. These two methods are rarely available in Tunisian public maternity hospitals where 80% of deliveries are managed. In addition, Childbirth training workshops, psychoeducation and psychosocial couple-based programs are not available in tunisian public maternities. For example, only one public structure offers a painless delivery program at Farhat Hached Sousse hospital.

In consequence, women arriving at the labor room, are largely unaware of the basic principles of childbirth process. They do not know how to manage their pain.

the application of the GUILLARME® method during labor is based on the use of a flow regulating device (Winner Flow + URO-MG®). By regulating the flow of breath during a uterine contraction, it allows better pain management. Despite a positive feedback not only from parturients but also from midwives who practiced this method, actually investigators have only subjective evaluation with no real measurable and objective impact on pain levels during childbirth process. Consequently, investigators are conducting this scientific study whose main objective is:

-To evaluate changes in pain level with the use of regulated expiratory method during childbirth process.

Historically, pain management during childbirth has been a primary concern in the obstetric community. In recent decades,childbirth care providers have been witnessing, especially in developed countries, a real revolution in terms of approaches around this unique moment of birth. This is how perinatal professionals are no longer concerned only with medical follow-up and the smooth running of pregnancy or the well-being of the newborn, but also with overall support for women by promoting their active participation in the childbirth process. To this end, several methods of pain management are offered to women during labor. The more documented are: locoregional (epidural) anesthesia and acupuncture. These two methods are rarely available in Tunisian public maternity hospitals where 80% of deliveries are managed. In addition, Childbirth training workshops, psychoeducation and psychosocial couple-based programs are not available in tunisian public maternities. For example, only one public structure offers a painless delivery program at Farhat Hached Sousse hospital.

In consequence, women arriving at the labor room, are largely unaware of the basic principles of childbirth process. They do not know how to manage their pain.

In order to overcome this situation, we introduced the GUILLARME® method to the obstetric care unit at Mongi Slim la Marsa hospital in January 2018. This method was originally a postpartum abdomino-perineal rehabilitation technique. It allows a functional abdominal rehabilitation by combining a regulated breath in a specific mouthpiece and an abdominal stimulation triggered by this same breath. The use of this method was extended to labor and childbirth. In fact, the application of the GUILLARME® method during labor is based on the use of a flow regulating device (Winner Flow + URO-MG®). By regulating the flow of breath during a uterine contraction, it allows better pain management. Despite a positive feedback not only from parturients but also from midwives who practiced this method, actually investigators have only subjective evaluation with no real measurable and objective impact on pain levels during childbirth process. Consequently, investigators are conducting this scientific study whose main objective is:

-To evaluate changes in pain level with the use of regulated expiratory method during childbirth process.

Inclusion Criteria:

• women with a Gestational age of at least 30 weeks of amenorrhea
• women with a Normal fetal heart rate before inclusion.
• women having regular uterine contraction before inclusion .

Exclusion Criteria:

• Refusal of participation
• Women requiring epidural anesthesia
• Women in an advanced stage of labor with a cervical dilation upon admission over 3 cm
• A medical contraindication to vaginal delivery .
• Intra uterine fetal demise.
• Previous participation to childbirth training workshops
• Women without regular uterine contraction .
• Gestational term <30 weeks
• fetal heart rate abnormalities