Preterm Birth
Conditions
Keywords
Newborn, ontogeny of crying, preterm infants
Brief summary
Crying is a survival mechanism for babies and their almost exclusive means of expression until the age of 4 months. Babies 'cry is mostly related to pain, a feeling of hunger, discomfort or separation following the departure of a parent around. Crying is a complex but essential means of communication and information between a baby and his parents that raises the question of their meaning. Very few longitudinal studies have been produced on preterm's crying. As the term approaches, the characteristics of preterm babies' crying are similar to those of term infants. But these studies date back more than 30 years and are obsolete in terms of the quality and performance of sound recording equipment and signal processing. No study has looked at the genesis of the cry itself and the varieties of the cry of the preterm baby, depending on whether it was in a situation of hunger, pain, discomfort (bath).
Detailed description
This longitudinal study recordings of crying babies from 26 amenorrhea week to 33 amenorrhea week, 24 hours per week, each week until the return home. In the same time, parents will be asked to know the situation of the baby (hunger, pain, bath).
Interventions
OTHERcries longitudinally registered
Their cries will be longitudinally registered from the age of birth to the return home using an automatic record device: Song Meter SM4.
Sponsors
Centre Hospitalier Universitaire de Saint Etienne
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
1 Days to 10 Days
Healthy volunteers
No
Inclusion criteria
* Infant born between 26 and 33 amenorrhea week * Live infant at birth * Parent affiliated or entitled to a social security scheme * Parent who received informed written information about the study
Exclusion criteria
\- Intubated infant
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Analysis fundamental frequency (f0) | at the end of hospitalization (on average 2 months) | Measured by PRAAT software for 24h every week |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Analysis roughness of the cry (PC1) | at the end of hospitalization (on average 2 months) | Measured by PRAAT software for 24h every week |
| Analysis pitch of the cry (PC2) | at the end of hospitalization (on average 2 months) | Measured by PRAAT software for 24h every week |
| Analysis NIP∑ (neonatal index of parasympathetic activity) index | at the end of hospitalization (on average 2 months) | Measured by monitor MDoloris® for 24h every week |
| Correlation between crying acoustic structures and parent's responses | at the end of hospitalization (on average 2 months) | Measured by completed questionnaire by parents (Linear Mixed Model) every week |
Countries
France
Outcome results
None listed