Objective

2

A patient with persistent hoarseness was trained and the effectiveness of the training method was explored.

Methods

2

A 7-year-old

female child with hoarseness for 7 years was enrolled

and had been treated for many times with drugs and vocal rest in the hospital ineffectively. The diagnosis is vocal cord nodules and muscle tone vocal disorder (MTD)

and training contents are as follows: vocal hygiene

relaxation exercises

breathing exercises

resonance training

semi-closed vocal training

ect.

Results

2

After eight weeks of intervention

the glottic squeezing was improved

and the auditory perception assessment changed from severe to mild

and F0 increased from pre-treatment 191.06 Hz to 229.41 Hz after treatment

and the Jitter decreased from 2.24% to 0.24% after treatment; The Shimmer decreased from 12.12% before treatment to 8.2% after treatment

and the S/Z ratio decreased from 2.04 before treatment to 1.02 after treatment; Jitter and Shimmer decreased compared with pre-treatment

suggesting irregular vocal cord vibration movement decreases. A decrease in the S/Z ratio indicates an increase in vocal efficiency.

Conclusion

2

Voice training is currently the preferred way to treat vocal difficulties in children

and have good efficacy

especially for children with hoarseness and other symptoms caused by excessive voices use and misuse.