CAJ | 학술논문

目的：研究听力正常新生儿不同时间间隔前掩蔽听性脑干反应的特征，探讨最适宜前掩蔽记录的时间间隔。方法对30例（60耳）听力正常的新生儿分别进行前掩蔽条件下4、8、16、32 ms间隔刺激声的 ABR检测，以无掩蔽下的常规ABR为参照，对检测结果进行统计分析。结果除掩蔽间隔4 ms的波Ⅲ潜伏期及Ⅰ-Ⅲ波间期外，前掩蔽条件下不同时间间隔（4、8、16、32 ms）的潜伏期及波间期均较常规ABR延长（P＜0．01），其中掩蔽间隔8 ms时潜伏期及波间期延长最明显、最稳定。结论新生儿前掩蔽ABR的波潜伏期及波间期延长与掩蔽刺激间隔时间相关。掩蔽刺激间隔时间8 ms（强度80 dB nHL ）更适宜新生儿前掩蔽听性脑干反应的记录。
목적：연구은력정상신생인불동시간간격전엄폐은성뇌간반응적특정，탐토최괄의전엄폐기록적시간간격。방법대30례（60이）은력정상적신생인분별진행전엄폐조건하4、8、16、32 ms간격자격성적 ABR검측，이무엄폐하적상규ABR위삼조，대검측결과진행통계분석。결과제엄폐간격4 ms적파Ⅲ잠복기급Ⅰ-Ⅲ파간기외，전엄폐조건하불동시간간격（4、8、16、32 ms）적잠복기급파간기균교상규ABR연장（P＜0．01），기중엄폐간격8 ms시잠복기급파간기연장최명현、최은정。결론신생인전엄폐ABR적파잠복기급파간기연장여엄폐자격간격시간상관。엄폐자격간격시간8 ms（강도80 dB nHL ）경괄의신생인전엄폐은성뇌간반응적기록。
Objective To study the characteristics of auditory brainstem responses with different forward - masking intervals in newborns with normal hearing ,and to find out the most efficient interval .Methods Auditory evoked brainstem responses were recorded from 30 newborns(60 ears) ,with forward - masking intervals of 4 ms ,8 ms ,16 ms ,32 ms ,and unmasked as control .The ABR data were statistically analyzed with SPSS 13 .0 .Results With forward - masking intervals ,all waves Ⅰ ,Ⅲ ,Ⅴ latencies and Ⅰ - Ⅴ ,Ⅰ - Ⅲ ,Ⅲ - Ⅴ interpeak latencies were significantly (P< 0 .01) prolonged compared with those of in the unmasked ,except wave Ⅲ and Ⅰ - Ⅲ interpeak latencies with 4 ms forward - masking intervals .The waves from 8 ms interval were the most prolonged .Conclusion Forward masking increases human newborn ABR latencies and interpeak latencies .The interval time influenced the effect ,and 8 ms interval is the most efficient .