caa a22 4500 388083689 CHVBK 20180307125224.0 cr unu---uuuuu 161130e199901 xx s 000 0 eng 10.1017/S0022215100143099 doi S0022215100143099 pii (NATIONALLICENCE)cambridge-10.1017/S0022215100143099 Acoustic evaluation of Isshiki type III thyroplasty for treatment of mutational voice disorders [Elektronische Daten] The goal of this study was to determine if there are acoustical differences between pre- and post-surgical voices and to evaluate the effectiveness of Isshiki type III thyroplasty in 11 male patients with mutational voice disorders. Acoustic measures were obtained both pre- and post-operatively. A comparison of pre-and post-operative fundamental frequency (Fo), voice frequencies, and vocal intensity obtained from a sustained vowel /i/ during different phonatory tasks was made. The results from the present study demonstrated that after operation the voice frequencies were significantly decreased (p<0.05). The vocal intensity tended to reduce slightly as the voice frequency lowered. However, there were no statistically significant differences in the pre- and post-operative measures of vocal intensity (p>0.5). The preoperative high pitched voices of all the male patients were lowered up to the normal value by the type III thyroplasty. Copyright © JLO (1984) Limited 1999 Voice disorders nationallicence Voice quality nationallicence Voice nationallicence surgery nationallicence Li Guo-Dong Liaoning Voice Center, Department of Otolaryngology, 2nd Affiliated Hospital, China Medical University, Shenyang, P.R., China Mu Liancai Grabscheid Voice Center, Department of Otolaryngology, The Mount Sinai Medical Center, New York, N.Y., USA. Yang Shilin Liaoning Voice Center, Department of Otolaryngology, 2nd Affiliated Hospital, China Medical University, Shenyang, P.R., China The Journal of Laryngology & Otology Cambridge University Press 113/1(1999-01), 31-34 0022-2151 113:1<31 1999 113 JLO https://doi.org/10.1017/S0022215100143099 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0022215100143099 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li Guo-Dong Liaoning Voice Center, Department of Otolaryngology, 2nd Affiliated Hospital, China Medical University, Shenyang, P.R., China NATIONALLICENCE 700 1- Mu Liancai Grabscheid Voice Center, Department of Otolaryngology, The Mount Sinai Medical Center, New York, N.Y., USA NATIONALLICENCE 700 1- Yang Shilin Liaoning Voice Center, Department of Otolaryngology, 2nd Affiliated Hospital, China Medical University, Shenyang, P.R., China NATIONALLICENCE 773 0- The Journal of Laryngology & Otology Cambridge University Press 113/1(1999-01), 31-34 0022-2151 113:1<31 1999 113 JLO CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge