一种新的早产儿脑电发育成熟度评价方法的初步研究

doi:10.7499/j.issn.1008-8830.2303144

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Abstract Objective To establish a new method for evaluating the brain maturation of preterm infants based on the features of electroencephalographic activity. Methods A prospective study was conducted on the video electroencephalography (vEEG) and amplitude-integrated electroencephalography (aEEG) recordings within 7 days after birth of preterm infants who had a postmenstrual age (PMA) of 25-36 weeks and met the inclusion criteria. The background activity of aEEG+conventional electroencephalography (cEEG) was scored according to the features of brain maturation as a new evaluation system and was compared with the aEEG evaluation system. The correlations of the evaluation results of the two methods with gestational age (GA), PMA, and head circumference were evaluated. The intervals of the total scores of aEEG+cEEG and aEEG were calculated for preterm infants with different PMAs and were compared between groups. The consistency of the new scoring system was evaluated among different raters. Results A total of 52 preterm infants were included. The total scores of aEEG+cEEG and aEEG were positively correlated with GA, PMA, and head circumference (P<0.05), and the correlation coefficient between the total scores of the two systems and PMA and GA was >0.9. The normal score intervals for aEEG+cEEG and aEEG scoring systems were determined in preterm infants with different PMAs as follows: infants with a PMA of less than 28 weeks had scores of 13.0 (11.0, 14.0) points for aEEG+cEEG and 6.0 (4.0, 7.0) points for aEEG; infants with a PMA between 28 and 29+6 weeks had scores of 16.0 (14.5, 17.0) points for aEEG+cEEG and 8.0 (6.0, 8.0) points for aEEG; infants with a PMA between 30 and 31+6 weeks had scores of 18.0 (17.0, 21.0) points for aEEG+cEEG and 9.0 (8.0, 10.0) points for aEEG; infants with between 32 and 33+6 weeks had scores of 22.0 (20.0, 24.5) points for aEEG+cEEG and 10.0 (10.0, 10.8) points for aEEG; infants with a PMA between 34 and 36 weeks had scores of 26.0 (24.5, 27.5) points for aEEG+cEEG and 11.0 (10.0, 12.0) points for aEEG. There were significant differences in the total scores of aEEG+cEEG and aEEG among the different PMA groups (P<0.05). There was a high consistency between different raters when using the scoring system to evaluate the brain maturation of preterm infants (κ=0.86). Conclusions The aEEG+cEEG scoring system established in this study can quantitatively reflect the brain maturation of preterm infants, with a good discriminatory ability between preterm infants with different PMAs and high consistency between different raters.

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	TIAN Yi-Li
	FANG Xiu-Ying
	WANG Ying-Jie
	MAO Jian

Key words： Brain maturation Conventional electroencephalography Amplitude-integrated electroencephalography Preterm infant

Received: 29 March 2023

Corresponding Authors: (Mao J, Email:maoj@sj-hospital.org) E-mail: maoj@sj-hospital.org

Cite this article:

TIAN Yi-Li,FANG Xiu-Ying,WANG Ying-Jie et al. A preliminary study on a new method for evaluating brain maturation in preterm infants[J]. CJCP, 2023, 25(8): 805-811.

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http://www.zgddek.com/EN/10.7499/j.issn.1008-8830.2303144 OR http://www.zgddek.com/EN/Y2023/V25/I8/805

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