Sweep frequency impedance measures in young infants: developmental characteristics from birth to 6 months
Sweep frequency impedance measures in young infants: developmental characteristics from birth to 6 months
复制标题
小婴儿的扫频阻抗测量:从出生到 6 个月的发育特征
DOI:
10.1080/14992027.2016.1244867
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发表时间:
2017
影响因子:
2.7
通讯作者:
Michio Murakoshi and Hiroshi Wada
中科院分区:
文献类型:
--
作者:
Venkatesh Aithal;Joseph Kei;Carlie Driscoll;Michio Murakoshi and Hiroshi Wada
Objective: International Journal of Audiology To study the developmental characteristics of sweep frequency impedance (SFI) measures in healthy infants from birth to 6 months.Design: All infants were assessed using high-frequency tympanometry (HFT), distortion product otoacoustic emission (DPOAE) and SFI tests. SFI measures consisted of measurement of resonance frequency (RF) and mobility (ΔSPL) of the outer and middle ear. A mixed model analysis of variance was applied to the SFI data to examine the effect of age on RF and ΔSPL.Study sample: Study included 117 ears from 83 infants of different age groups from birth to 6 months.Results: The mean RF of the outer ear increased from 279 Hz at birth to 545 Hz at 4 months, whereas mean ΔSPL of the outer ear decreased from 7.9 dB at birth to 3.7 dB at 4 months of age. In contrast, the mean RF and ΔSPL of the middle ear did not change significantly with age up to 6 months.Conclusions: Developmental characteristics should be considered when evaluating the function of the outer and middle ear of young infants (≤6 months) using the SFI. The preliminary normative SFI data established in this study may be used to assist with the evaluation.