Murry T, Bone R C
Division of Head and Neck Surgery, Veteran's Administration Medical Center, San Diego, CA 92161.
Laryngoscope. 1989 Dec;99(12):1217-9. doi: 10.1288/00005537-198912000-00001.
Selective uvulopalatopharyngoplasty has resulted in the improved management of sleep apnea; however, the effect of the surgery on speech has not been systematically evaluated. In this study, the speaking fundamental frequency, reading rate, and first and second formants of the vowels of four patients were measured acoustically presurgically and postsurgically. The results indicate that the length of time needed to read a passage was reduced in all four patients 2 weeks following surgery compared to the presurgical duration. In addition, the second formant of nine vowels studied was lower postsurgically. No changes in speaking fundamental frequency were found in three of the four patients; in the fourth, the speaking fundamental frequency was lower by approximately one semitone. Based on the reduced reading rates from the presurgical to the postsurgical conditions, changes in respiratory parameters in addition to vocal tract parameters warrant assessment when evaluating the speech of individuals prior to and following uvulopalatopharyngoplasty.
选择性悬雍垂腭咽成形术已改善了对睡眠呼吸暂停的治疗；然而，该手术对言语的影响尚未得到系统评估。在本研究中，对4例患者术前和术后元音的言语基频、朗读速率以及第一和第二共振峰进行了声学测量。结果表明，与术前相比，所有4例患者术后2周朗读一篇文章所需的时间均减少。此外，所研究的9个元音的第二共振峰在术后降低。4例患者中有3例的言语基频未发现变化；第4例患者的言语基频降低了约一个半音。基于术前到术后朗读速率的降低，在评估悬雍垂腭咽成形术前后个体的言语时，除了声道参数外，呼吸参数的变化也值得评估。
