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KMID : 0378019910340110036
New Medical Journal
1991 Volume.34 No. 11 p.36 ~ p.40
A Phoniatrical Study on Vocal Nodule


Abstract
It is important to evaluate the hoarseness which is the most common complaint in vocal nodule.
Authors experienced 72cases of laryngeal nodule (28 cases pt male, 44 cases of female; 38.4¡¾ 7.3 years old of average age) from 1985 to 1990 ¢¥and evaluated the phoniatrical analysis. Results were as follows
1. Maximal phonation time was 18.1 sec in male and 14.3 sec in female. Phonation quotient was 153.2 ml/sec in male and 148.1 ml/sec in female. Mean air flow rate was 149.5 ml./sec in male and 132 ml/sec in female.
2. On aerodynamic study. 70% of cases were within normal ragne, but abnormal range was less than 30%. The cases with abnormal range were more common in bilateral nodules than unilateral nodule.
3. On psychoacoustic analysis, the laryngeal nodules with rough voice were 46 cases (63.9%) and laryngeal nodules with strained voice were 26 cases (36.1%). A half of cases showed mild hoarseness and the laryngeal nodules with strained voice were severe in degree of hoarseness.
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