Velopharyngeal insufficiency - DRHC Dubai ENT Clinic

Velopharyngeal insufficiency is an anatomical disorder that causes a failure of the soft palate to block the post nasal space or to be close to the posterior pharyngeal wall (back wall of the throat) during speech production. Causes of hypernasality and VPD are:

The oronasal fistula may result in hypernasality only if the fistula size is large, small fistulas sometimes are asymptomatic.

Structural anomalies associated with genetic syndromes can also result in hypernasality (CHARGE syndrome, Treacher Collins syndrome, deletion syndrome)

2- Neuromuscular problems traumatic brain injury, stroke, cerebral palsy, apraxia [congenital or acquired], velar paresis or paralysis [cranial nerve defects], neuromuscular disease [e.g., myasthenia gravis and muscular dystrophy], neurofibromatosis, and neurodevelopmental syndromes

 3-Functional etiologies also exist, including splinting of the palate after tonsillectomy, imitation of cultural or familial role models or mislearning

Learned compensatory misarticulations, that develop due to the inability to generate adequate intraoral airflow for consonant production. These productions almost always persist after successful physical management of the VP mechanism.

Lack of auditory feedback in individuals who are deaf or have significant hearing loss. Abnormal resonance is due to an inability to learn nasal and oral contrasts and later monitor resonance normally through auditory feedback.

What is a submucous cleft palate?

A submucous cleft palate is a congenital defect of the velum, which forms the mobile part of the roof of the mouth. Double uvula, which is the tissue that hangs from the back of the palate, appear as sign of the sub mucous cleft.

Two types of VPD have different treatments:

1. Velopharyngeal insufficiency treated with surgery or a special speech appliance that your child wears in their mouth.
2. Velopharyngeal incompetence is treated with speech therapy and sometimes with a speech appliance or surgery.

What are the four surgical treatments for Velopharyngeal insufficiency:

• Pharyngeal flaps
• Velopharyngeal sphincter operation(pharyngoplasty)
• Z- plasty for soft palate
• Using filler injection

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