[Vocal sound study in supracricoid partial laryngectomy].
OBJECTIVE
Vocal sound was studied in 21 patients underwent supracricoid partial laryngectomy using Dr. Speech.


METHODS
Vocal sound tests and frequency spectrum analysis were used in 4 different approaches (CHEP, CHP, TCHEP, TCHP) both before and after the operation.


RESULTS
Vibration pattern of new glottidis formed after the four different operation approaches was approximately the same demonstrating an augmentation of mucous membrane fluctuation. This vibration pattern were increasing and stabilizing gradually with time.


CONCLUSIONS
Retaining on both sides and one side in supracricoid partial laryngectomy facilitates restoration of vocal function.
Shen
Wei
W
Department of Otolaryngology-Head and Neck Surgery, The Putuo Hospital of Shanghai University of Chinese Medicine,Shanghai, 200062, China. vweishen@sh163.net
Ying
Shankai
S
Qian
Shijun
S
Chen
Bing
B
Zhu
Jing
J
Wei
Jun
J
D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000601:surgery*; D006801:Humans; D007822:Laryngeal Neoplasms / Q000601:surgery*; D007825:Laryngectomy / Q000379:methods*; D008297:Male; D008875:Middle Aged; D016896:Treatment Outcome; D014833:Voice Quality