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目的 :探讨高危妊娠新生儿听性行为反应变化的意义 ,为宫内缺氧儿的监测及早期治疗提供参考。方法 :6 2例高危妊娠组新生儿及 40例正常妊娠组新生儿分别通过瞬态诱发性耳声发射(transient evoked otoacustic emission,TEOAE)测试后 ,进行声场测听 ,刺激声分别为 3k Hz纯音、高频窄带噪声及白噪声 ,分析恒定给声强度下的眼睑反应、头颈反应、面部反应、肢体反应的引出率。结果 :两组新生儿均引出良好的 TEOAE波形 ,三种刺激声的眼睑反应引出率两组之间差异无显著性 ,高频窄带噪声的头部反应引出率正常组高于高危组 (P<0 .0 5 ) ,3k Hz纯音和白噪声的面部反应引出率正常组明显高于高危组 (P<0 .0 1) ,三种刺激声的肢体反应引出率正常组均明显高于高危组 (P<0 .0 1)。结论 :高危妊娠新生儿听性行为反应的改变可能与宫内缺氧有关 ,新生儿听性行为反应的检测可较敏感地帮助判断新生儿有无宫内缺氧 ,可作为高危妊娠新生儿的监测手段之一。
Objective: To investigate the significance of changes of auditory and behavioral responses in neonates with high-risk pregnancy and to provide reference for the monitoring and early treatment of intrauterine hypoxia. Methods: Twenty-two newborns of high-risk pregnancy group and 40 normal newborns were measured by transient evoked otoacustic emission (TEOAE), and then were subjected to sound field audiometry with 3k Hz pure tone , High-frequency narrow-band noise and white noise, eyelid response, head and neck reaction, facial response and extremity reaction rate under constant acoustic intensity were analyzed. Results: The TEOAE waveforms were induced in both groups of newborns. There was no significant difference in eyelid elicitation rates between the two groups. The frequency of head reaction induced by high frequency narrow band noise was higher in the normal group than in the high - risk group (P < 0. 0 5), 3k Hz pure tone and white noise in normal reaction group was significantly higher than the high risk group (P <0.01), three kinds of stimuli sound limb lead rate of normal group were significantly higher than the high risk group (P <0. 01). Conclusion: The change of auditory behavioral response in neonates with high-risk pregnancy may be related to intrauterine hypoxia. The detection of auditory behavioral response in neonates may be more sensitive to determine the presence or absence of intrauterine hypoxia in newborns and may be used as a newborn in high-risk pregnancy One of the means of monitoring.