organic voice disorders 1
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organic voice disorders 1. - Definition -Two common types - Therapy for laryngetomy. topics. Definition. Definition Related to structural deviations of the vocal tract Or to diseases of specific structures of the vocal tract Examples Cleft palate (structural deviation) - PowerPoint PPT PresentationTRANSCRIPT
-Definition-Two common types-Therapy for laryngetomy
Definition Related to structural deviations of the
vocal tract Or to diseases of specific structures of the
vocal tract Examples
Cleft palate (structural deviation) Viral papilloma of larynx (vocal tract
disease)
Treatment Medical Dental Surgical Voice therapy by SLP
Improve the physiologic function of a damaged larynx
Develop the best voice possilbe
Cause/etiology Smoking Use of smokeless tobacco Chronic infections Herpes Repeated trauma to irritated site Leukoplakia ( 黏膜白斑病 )
Location Lip and intraoral - articulation Palatal and velar - articulation,vocal
resonance and swallow Laryngeal - voice
Types of laryngeal cancer Supraglottal Glottal Subglottal
Treatment for laryngeal cancers Combination of radiation therapy and
surgery – small to moderate lesions
Hemilaryngectomy, supraglottal laryngectomy or total laryngectomy - extensive cancers
Laryngeal cancer
Tongue cancer
Lip cancer
Cause/etiology Unknown , vocal abuse and
laryngopharyngeal reflux(acquired)
Location Medial edge of the VF All segement of the edge of the VF Bilaterally symmetrical Superficial layer of the mucosa or the
vocal ligament and muscle Types
Physiological - normal voice Congenital - abnormal mucosal wave Acquired - abnormal mucosal wave
Acoustic changes
Treatment Surgery
Incision Injection (collagen, fat,etc) Mucosal slicing
Followed by voice therapy Reducing hyperfunction Pitch shifts Loudness changes etc
Function of larynx Prevent aspiration
Three valve The true folds The ventricular folds The aryepiglottic folds
Total laryngectomy alters respiration, swallowing and speech.