Speech and Language Section, Otolaryngology Service, Hospital Italiano de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina.
J Voice. 2012 Sep;26(5):584-6. doi: 10.1016/j.jvoice.2011.10.004. Epub 2012 May 11.
From conception to postpartum, pregnancy is a state in which physiologic, metabolic, and anatomic parameters are altered. Pregnancy could affect voice attributes by changing quality and perturbation rates, mainly during the third trimester. The aim of this study was to compare voice attributes between third trimester pregnant and nonpregnant matched women.
A case-control study was undertaken with third trimester pregnant women attending the antenatal care clinic of the Hospital Italiano in Buenos Aires. We analyzed and compared values of fundamental frequency, maximum phonation time, vocal intensity, perturbation rates, and physical acoustic qualities.
Most pregnant women showed abnormal parameters of auditory perceptual evaluation, a higher incidence of gastroesophageal reflux, predominance of clavicular breathing, and a reduction of phonation time.
Significant differences found in both groups suggest that physiologic and body changes produced during pregnancy affect voice quality.
从受孕到产后，妊娠是一个生理、代谢和解剖参数发生改变的状态。妊娠可能会通过改变质量和扰动量率来影响声音特征，主要发生在妊娠晚期。本研究旨在比较妊娠晚期孕妇和非孕妇匹配女性的声音特征。
采用病例对照研究，纳入在布宜诺斯艾利斯意大利医院产前保健诊所就诊的妊娠晚期孕妇。我们分析和比较了基频、最长发声时间、发声强度、扰动量率和物理声学质量的数值。
大多数孕妇表现出听觉感知评估的异常参数，胃食管反流的发生率较高，锁骨呼吸占主导地位，发声时间缩短。
两组之间发现的显著差异表明，妊娠期间发生的生理和身体变化会影响声音质量。
