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Concept
Childbirth positions
Résumé
The term childbirth positions (or maternal birthing positions) refers to the physical postures the pregnant mother may assume during the process of childbirth. They may also be referred to as delivery positions or labor positions.
In addition to the lithotomy position (on back with feet pulled up), still commonly used by many obstetricians, other positions are successfully used by midwives and traditional birth-attendants around the world. Engelmann's seminal 1882 work "Labor among primitive peoples" publicised the childbirth positions amongst primitive cultures to the Western world. They frequently use squatting, standing, kneeling and all fours positions, often in a sequence. They are referred to as upright birth positions.
Lithotomy position
In the lithotomy position, the mother is lying on her back with her legs up in stirrups and her buttocks close to the edge of the table. This position is convenient for the caregiver because it permits him or her more access to the perineum. However, this is not a comfortable position for most patients, considering the pressure on the vaginal walls because the baby's head is uneven and the labor process is working against gravity.
Various people have promoted the adoption of upright birthing positions, particularly squatting, for Western countries, such as Grantly Dick-Read, Janet Balaskas, Moysés Paciornik and Hugo Sabatino. The adoption of the non-lithotomy positions is also promoted by the natural childbirth movement.
Being upright during labour and birth can increase the available space within the pelvis by 28–30% giving more room to the baby for rotation and descent. There is also a 54% decreased incidence of foetal heart rate abnormalities when the mother is upright. These birthing positions can also reduce the duration of the second stage of labour as well as reduce the risk for emergency caesarian sections by 29%. They are also associated with the lower need for epidural.
Different positions may be associated with different rates of perineal injury.
Source officielle
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