8/3/2019 The Initial Cry of the New-born - Pt. a4 -Contacte

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THE INITIAL CRY OF THE NEW-BORN,

A POSSIBLE MARKER OF THE NEONATAL

NEUROLOGICAL STATUS

C.Ilie1, E. Bernad1, I. Enatescu1, V.R. Enatescu3, R. Ilie21University of Medicine and Pharmacology V. Babes, Neonatology Department, Timisoara, Romania,

2Children Hospital Louis Turcanu, Pathology Department, Timisoara, Romania,3University of Medicine and Pharmacology V. Babes, Psychiatry Department, Timisoara, Romania

Introduction. Objective.

The newborns cry represents a biological individual high utility practice sign. Its analyze could represent a precious non invasive diagnostic method and even help to

monitor the postnatal neurological sufferance. The aim of the study is to present some variables of the spontaneous and caused cry on healthy, on term, newborns.

Material and method.

It has been recorded the spontaneous cry of the healthy newborns on term, between 1-4 days after birth. The duration of a record was minimum 3 minutes. Tab. 1 and 2

illustrates the lot inclusion criteria and main characteristics. The registration was made case by case, in a place specially prepared for this, with 5-10 minutes before the

newborn has been breastfed. From the the studied consignment, on a number of 30 randomly selected newborns has been registered the cry of pain caused by pricking theheel in the neonatal screening; these recordings were made in fourth day of at least 2 hours after the last breastfeedng. For the recording, we used a SEENHEISER EW100

G2 microphone and a SONY HDR FX 1E video cammera and for data storrage we used a PC unit with digital capture board. For the spectrographic analysis and sonor

signal processing we used an aplication-MATLAB which uses a record frequency of 64 KH.

Without pathological parenteral and heredo-collateral

antecedents.

APGAR score 9 and 10 at 1 510 minutes.

Clinical and neurological exam on birth, normally.

Without neonatal pathology on staying time and after going

home.

Exclusively breast feeding.

Clinical and neurological at 1 month reevaluation, normal.

Tab. 1. Lot inclusion criteria

The crying amplitude is measured in decibels. The fecquencye variation and sonor

signal amplitude deppending on time factor represents the visual diagram of the

noise signal or spectrogram.

Conclusions:

1. The study method is efficient, cheap and totally non-invasive, if we refer to the standard registration.

2. Through the standard diagrams, the study results allowed to put the method between the large group of the screening test.

3. For validation is necessary the comparison of the results with the initial cry registration of the new-born suffering of perinatal neurological diseases.

Tab. 2. The main characteristic for infant subjects

MEAN DS

Spontaneous

Cry, N=122

Caused Cry,

N=30

Spontaneous

Cry, N=122

Caused Cry

N=30

The Duration of the Cry (first

word)1.32 2,24 0,20 0,25

The Duration between the Cries 0,08 0,44 0,03 0,25

Base frequency 813,37 904,43 311,41 233,45

Tab. 3

Fig. 1. Spontaneous Cry-SPECTROGRAM

Fig. 2. Caused Cry-SPECTROGRAM

Results

The newborn cry scrolls in rounds with brakes between

them and variable duration. It is a signal of non-verbal

communication. Through linguistic analogy, a cry

sequence is a sentence, a complex analysis unit consisting

of more words; the word means the duration of the

vocalization during of a single expiration. The sonor signal

may be represented graphically through waves where the

number of waves mouvement in a second is the

fundamental frecvency (F0) and is expressed in cycles/secor Hertz. F0 variations depending on time covers a wide

range of frecquencyes, from the highest (>3000 Hz) to the

lowest (