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[Glottic measurement and vocal evaluation before and after adult arytenoidectomy].
Zhonghua Er Bi Yan Hou Ke Za Zhi. 2004 Sep; 39(9):554-7.ZE

Abstract

OBJECTIVE

To study minimal glottic area which can acquire sufficient airway for decannulation and maximal glottic area which can maintain preoperative vocal function on adult bilateral vocal cord paralysis with unilateral arytenoidectomy.

METHODS

Sixteen adult received microscopic right arytenoidectomy with Diomed-25 laser under general anaesthesia and sustained laryngoscope from September 1998 to February 2003. The pre-postoperative glottic measurement and vocal acoustic parameters were analyzed.

RESULTS

The postoperative maximal glottic area, maximal posterior glottic width and maximal opening angle between bilateral vocal cords of the 15 decannulated cases were (45.93 +/- 6.56) mm2, (4.97 +/- 0.73) mm and (24.34 +/- 4.74) degrees respectively. Compared with preoperative period, there were significant difference. Pre-postoperative acoustic parameters (Jitter, Shimmer, harmonics-noise ratio) were analyzed and no significant difference were found (P > 0.05, but there are significant difference in NNE (normalized noise energy) and MPT (maximum phonation time) (P < 0.05). Except for three cases whose postoperative glottic area were more than 50. 1 mm2, there were no significant difference in pre and postoperative NNE (P > 0.05). The minimal glottic area decannulated was 38.0 mm2. The more opening maximal glottic area, the greater of NNE because of bigger closing gap. Noticeable increase of NNE was observed when maximal opening glottic area was up to 50.1 mm2.

CONCLUSIONS

The minimal glottic area for decannulation should be 38.0 mm2, and the maximal glottic area for maintaining preoperation vocal function should be 50.1 mm2 on adult bilateral voca cord paralysis with laser aryntenoidectomy.

Authors+Show Affiliations

Department of Otorhinolaryngology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China. Huangyideng@sohu.comNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

English Abstract
Journal Article

Language

chi

PubMed ID

15606007

Citation

Huang, Yi-deng, et al. "[Glottic Measurement and Vocal Evaluation Before and After Adult Arytenoidectomy]." Zhonghua Er Bi Yan Hou Ke Za Zhi, vol. 39, no. 9, 2004, pp. 554-7.
Huang YD, Zhou SM, Zheng HL, et al. [Glottic measurement and vocal evaluation before and after adult arytenoidectomy]. Zhonghua Er Bi Yan Hou Ke Za Zhi. 2004;39(9):554-7.
Huang, Y. D., Zhou, S. M., Zheng, H. L., Li, Z. J., Wen, W., Zhang, S. Q., & Geng, L. P. (2004). [Glottic measurement and vocal evaluation before and after adult arytenoidectomy]. Zhonghua Er Bi Yan Hou Ke Za Zhi, 39(9), 554-7.
Huang YD, et al. [Glottic Measurement and Vocal Evaluation Before and After Adult Arytenoidectomy]. Zhonghua Er Bi Yan Hou Ke Za Zhi. 2004;39(9):554-7. PubMed PMID: 15606007.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Glottic measurement and vocal evaluation before and after adult arytenoidectomy]. AU - Huang,Yi-deng, AU - Zhou,Shui-miao, AU - Zheng,Hong-liang, AU - Li,Zhao-ji, AU - Wen,Wu, AU - Zhang,Su-qin, AU - Geng,Li-ping, PY - 2004/12/21/pubmed PY - 2005/9/3/medline PY - 2004/12/21/entrez SP - 554 EP - 7 JF - Zhonghua er bi yan hou ke za zhi JO - Zhonghua Er Bi Yan Hou Ke Za Zhi VL - 39 IS - 9 N2 - OBJECTIVE: To study minimal glottic area which can acquire sufficient airway for decannulation and maximal glottic area which can maintain preoperative vocal function on adult bilateral vocal cord paralysis with unilateral arytenoidectomy. METHODS: Sixteen adult received microscopic right arytenoidectomy with Diomed-25 laser under general anaesthesia and sustained laryngoscope from September 1998 to February 2003. The pre-postoperative glottic measurement and vocal acoustic parameters were analyzed. RESULTS: The postoperative maximal glottic area, maximal posterior glottic width and maximal opening angle between bilateral vocal cords of the 15 decannulated cases were (45.93 +/- 6.56) mm2, (4.97 +/- 0.73) mm and (24.34 +/- 4.74) degrees respectively. Compared with preoperative period, there were significant difference. Pre-postoperative acoustic parameters (Jitter, Shimmer, harmonics-noise ratio) were analyzed and no significant difference were found (P > 0.05, but there are significant difference in NNE (normalized noise energy) and MPT (maximum phonation time) (P < 0.05). Except for three cases whose postoperative glottic area were more than 50. 1 mm2, there were no significant difference in pre and postoperative NNE (P > 0.05). The minimal glottic area decannulated was 38.0 mm2. The more opening maximal glottic area, the greater of NNE because of bigger closing gap. Noticeable increase of NNE was observed when maximal opening glottic area was up to 50.1 mm2. CONCLUSIONS: The minimal glottic area for decannulation should be 38.0 mm2, and the maximal glottic area for maintaining preoperation vocal function should be 50.1 mm2 on adult bilateral voca cord paralysis with laser aryntenoidectomy. SN - 0412-3948 UR - https://www.unboundmedicine.com/medline/citation/15606007/[Glottic_measurement_and_vocal_evaluation_before_and_after_adult_arytenoidectomy]_ DB - PRIME DP - Unbound Medicine ER -