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vary significantly from mild to severe dysphonia, depending on the type and location of the polyp and its interference with glottic closure and vocal fold vibra- tion.
Because this excessive swell- ing affects the entire length of the vocal folds, glottic closure usually is complete.
In severe cases, a nonvibrating scar may limit the glottic closure pattern.24'25 Voice quality changes associated with scarring include roughness, strain and loss of vocal flex- ibility in pitch, loudness, and endurance.
Vocal fold adduction and abduction will be asym- metric, and incomplete glottic closure is likely, resulting in dysphonia, breathi- ness, weakness, and strain.
The significant mediolateral compression of the ventricular folds reflect the patient's unsuccessful attempts to improve glottic closure.
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