Otorhinolaryngology Department, Manisa Celal Bayar University, Manisa, Turkey.
Department of Obstetrics and Gynecology, Faculty of Medicine, Manisa Celal Bayar University, Manisa, Turkey.
Logoped Phoniatr Vocol. 2022 Oct;47(3):183-188. doi: 10.1080/14015439.2021.1903076. Epub 2021 Mar 31.
We aimed to assess if there is a significant change in voice of pregnant women by the end of third trimester.
Forty-nine pregnant women were enrolled in this study between April 2019 and March 2020. Subjective and objective voice evaluation was conducted in the third trimester and three months after delivery. The Turkish version of the VHI-10 questionnaire was filled out by every participant. GRBAS scale was used for perceptual voice evaluation. Acoustic analyses were conducted by Multi-Dimensional Voice Program (MDVP) (Computerized Speech Lab, Kay Elemetrics Corporation, Lincoln Park, NJ). Fundamental frequency (), Jitter percent (Jitt), Shimmer percent (Shim), noise to harmonic ratio (NHR), maximum phonation time (MPT), voice turbulence index (VTI), vocal intensity, and scale parameters were categorized as predelivery (a) and postdelivery (b).
Comparison of acoustic parameters of the third trimester with the third month postpartum revealed statistically significant increases for ( = .013), MPT ( = .008), and vocal intensity (≤.001) as well as a significant decrease for VTI ( .001). No statistically significant difference was found for NHR, Jitt, and Shim. Comparison of both VHI-10 and GRBAS scores revealed statistically significant decreases.
Disturbances in certain vocal parameters suggest that vocal abnormalities observed during pregnancy are mainly due to anatomical alterations of the lower respiratory system. It would be appropriate to warn pregnant women about bad vocal habits and vocal hygiene. In addition, it would be appropriate to recommend professional voice support to pregnant women who use their voices intensively due to their profession.
评估孕妇在妊娠晚期结束时的嗓音是否有明显变化。
本研究纳入了 2019 年 4 月至 2020 年 3 月期间的 49 名孕妇。在妊娠晚期和产后 3 个月进行了主观和客观的嗓音评估。每位参与者都填写了土耳其语版的 VHI-10 问卷。采用 GRBAS 量表进行感知性嗓音评估。通过多维度嗓音程序（MDVP）（Kay Elemetrics Corporation，Lincoln Park，NJ）进行声学分析。基频（）、抖动百分比（Jitt）、晃动百分比（Shim）、噪声与谐波比（NHR）、最长发音时间（MPT）、嗓音湍流指数（VTI）、嗓音强度和音域参数被归类为分娩前（a）和分娩后（b）。
与产后 3 个月相比，妊娠晚期的声学参数比较显示，（ = .013）、MPT（ = .008）和嗓音强度（≤.001）显著增加，而 VTI（ .001）显著降低。NHR、Jitt 和 Shim 无统计学差异。VHI-10 和 GRBAS 评分的比较均显示显著降低。
某些嗓音参数的改变表明，妊娠期间观察到的嗓音异常主要是由于下呼吸道解剖结构的改变所致。建议孕妇注意不良的发声习惯和嗓音卫生。此外，对于因职业需要而频繁使用嗓音的孕妇，建议提供专业的嗓音支持。
