[Clinical study and acoustical analysis for submucosa hemorrhage of vocal cords treated mainly with acupuncture at "Kaiyin point no. 1"].

Objective: To evaluate therapeutic effect of acupuncture at "Kaiyin point No. 1" on submucosal hemorrage of vocal cords.

Methods: One hundred and sixty cases were randomly divided into a test group and a control group. The test group were treated by acupuncture at "Kaiyin point No. 1" with reducing method in reinforcing or reducing method by manipulating the needle in cooperation with the patient's respiration, combined with deep respiratory movement of the glottis laryngeal cavity, once daily; and the control group by spray inhalation of western medicine, once daily, 7 days constituting one therapeutic course.

Results: The cured and markedly effective rate and the total effective rate were 85.0% and 97.5% in the test group and 60.0% and 85.0% in the control group respectively, with a significant difference between the two groups. After treatment of the test group,the acoustical parameters maximum phonation time (MPT), frequency perturbation quotient (FPQ), amplitude perturbation quotient (APQ), ratio of harmonic to noise (H/N) objectively reflected improvement of voice quality.

Conclusion: Acupuncture at "Kaiyin point No. 1" as main method is an ideal therapy for submucosa hemorrhage of vocal cords.