胎内音刺激による新生児聴性反応の記録 An Automated Recording System of Auditory Response to the Intra-Uterine Sound for Screening of the Neonates.

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抄録

泣いている新生児に胎内音をきかせると体動を停止して泣き止むことが知られている。 この反応を新生児の聴覚スクリーニングとして用いるため, 自動的に記録できる装置を開発し, 正常成熟新生児47例と, 周産期に異常の認められた新生児11例について反応を記録した。 反応の有無の判定は極めて容易であつた。 正常成熟新生児47例の胎内音をきかせた場合 (on記録) の反応出現率は46.3%, 胎内音をきかせない状態 (off記録) で偶然に体動を停止する率は24.2%で, 胎内音をきかせたほうが新生児が泣き止む確率が明らかに高かった。 個々の新生児についてみると, on記録の反応出現率がoff記録の見かけ上の反応出現率を下回ったのは, 47例中1例のみであった。 一方, 周産期に異常の認められた新生児では, 泣き続ける力が乏しいなため, off記録での体動停止の確率が高く, そのため, これらの新生児の聴覚のスクリーニングとしては十分に有効とはいえなかった。

Intra-Uterine Sound (IUS) has been known to have an effect to soothe crying neonates. This effect has already been adopted for auditory screening of the newborns. We developed a new equipment which automatically records the response of the neonates.<br>When the baby begins to cry, the equipment provides IUS and records his or her movement. If amplitude of the movement is markedly reduced, it is considered as responded.<br>Forty-seven healthy newborns and 11 neonates with some perinatal disorders were examined. Each baby was tested for 12 hours and then recording was continued for another 12 hours without IUS. Among 47 healthy babies overall response rate to the IUS was 46.3% and pseudo response (spontaneous cessation of crying) rate was 24.2%. Ratio of the response rate to the pseudo-response rate was calculated for each subject. Forty-six among 47 showed the ratio greater than 1.0. A ratio of 1.6 was presumed to be an appropriate indicator for auditory screening.<br>Among 11 babies with perinatal disorders 7 showed the ratio less than 1.6. These 7 babies were evaluated to have normal hearing by the follow-up study and they were considered to have been inadequately developed to continue crying.<br>Developmental stage and general condition of each subject must be taken in account for the evaluation of this screening test.

収録刊行物

  • AUDIOLOGY JAPAN

    AUDIOLOGY JAPAN 34(4), 244-249, 1991

    日本聴覚医学会

各種コード

  • NII論文ID(NAID)
    130003861866
  • 本文言語コード
    JPN
  • ISSN
    0303-8106
  • データ提供元
    J-STAGE 
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