Dysphonia plicae ventricularis is hoarseness due to (a) phonation with the ventricular bands or (b) difficulty in phonation due to the vicarious assumption of the duty of the true vocal cords by the false cords, anatomically known as the ventricular bands.
The frequency of hoarseness due to phonation by the ventricular bands is difficult to determine by general statistics because the condition is evidently not generally recognized by laryngologists. Our own records of cases have not been regularly cross-indexed for this condition, but a fair estimate is that in about 4 per cent of the cases of hoarseness encountered the dysphonia is due to this vicarious assumption of phonatory duty by the ventricular bands.
As keen an observer as the father of laryngology, Sir Morrell McKenzie, does not seem to have recognized the possibility of phonation by the ventricular bands. In insisting on the use of the
JACKSON C, JACKSON CL. DYSPHONIA PLICAE VENTRICULARIS: PHONATION WITH THE VENTRICULAR BANDS. Arch Otolaryngol. 1935;21(2):157–167. doi:10.1001/archotol.1935.00640020166005
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