Acoustic Analysis of the First Babies Crying in Delivery Room and Adaptation to Extra Uterine Life

Completed

• Conditions: Premature Birth
• Interventions: Behavioral: newborn cries

• Registration Number: NCT04849234
• Lead Sponsor: Centre Hospitalier Universitaire de Saint Etienne

Brief Summary

Interpreting the cry of new-borns is a real challenge not only for perinatal professionals but also for parents, who are confronted daily with those sounds.

The description and the acoustic analysis of baby's cry can allow healthcare professionals to better adapt their care during the first months of life.

Thanks to an objective analysis method as acoustic analysis, the particularities of the first cry should provide us information on the quality of adaptation to ambient air life.

Detailed Description

Interpreting the cry of new-borns is a real challenge not only for perinatal professionals but also for parents, who are confronted daily with those sounds.

The description and the acoustic analysis of baby's cry can allow healthcare professionals to better adapt their care during the first months of life. Aiming for this objective, many studies have already been carried out on infants crying in the first months of life, in order to better understand their significance (pain, discomfort, hunger) and the mechanisms of recognition and discrimination by parents or listeners. Various techniques are promising to characterize the acoustic space of cry (maximum frequency, intensity, harmonics, duration...).

However, few studies have investigated the acoustic characteristics of the first cry of life in the delivery room. Its intensity and characteristics are closely related to the laryngeal anatomy and respiratory capacity. Thus, a vigorous cry with its own acoustic characteristics could be the witness of a good adaptation to extra uterine life, while a weak or plaintive cry should warn the caregiver on difficulties in this adaptation.

Thanks to an objective analysis method as acoustic analysis, the particularities of the first cry should provide us information on the quality of adaptation to ambient air life.

The investigators hypothesize that the acoustic characteristics of the first cries of newborns recorded at birth are correlated with the criteria of extra uterine life adaptation (Apgar score, pH and lactates collected from the umbilical cord), with the respiratory score (Silverman) and with the early neonatal outcome (transfer to the intensive care unit).

Study Timeline

• Study Start: 2021-04-01
• Study First Submitted: 2021-04-13
• Study First Submitted QC: 2021-04-13
• Study First Posted: 2021-04-19
• Primary Completion: 2021-05-02
• Study Completion: 2021-05-02
• Status Verified: 2022-12
• Last Update Submitted: 2022-12-23
• Last Update Posted: 2022-12-27

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 41

Inclusion Criteria

• Infant born between 37 and 42 SA
• Live infant at birth
• Parent who received informed written information about the study

Exclusion Criteria

• Emergency after childbirth (haemorrhage)

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
New born	newborn cries	New born population aged 37 Weeks of Amenorrhea (SA) to 42 Weeks of Amenorrhea (SA) will be included. Their cries will be longitudinally registered.

Primary Outcome Measures

Name	Time	Method
Fo : maximum fundamental frequency (Hz) of the cry	During the first 15 minutes of life	Measured by device: Recorder ZOOM H4N and analyzed with PRAAT® software; The F0 and Apgar score will be correlated
Apgar score (0-10)	During the first 15 minutes of life	The Apgar score is determined by evaluating the newborn baby on five simple criteria on a scale from zero to two, then summing up the five values thus obtained. The resulting score ranges from zero to 10.; The five criteria are : appearance, pulse, grimace, activity, respiration.; The F0 and Apgar score will be correlated

Secondary Outcome Measures

Name	Time	Method
Pitch of the cry (Hz) Crying acoustic structures	During the first 15 minutes of life	Measured by device: Recorder ZOOM H4N and analyzed with PRAAT® software
roughness of the cry (Hz)	During the first 15 minutes of life	Measured by device: Recorder ZOOM H4N and analyzed with PRAAT® software
Number of cry	During the first 15 minutes of life	Measured by device: Recorder ZOOM H4N and analyzed with PRAAT® software
Duration of cry (s)	During the first 15 minutes of life	Measured by device: Recorder ZOOM H4N and analyzed with PRAAT® software

Trial Locations

Locations (1)

Chu Saint-Etienne; 🇫🇷 Saint-Étienne, France