Lecture 4: Velopharyngeal Dysfunction (VPD) Flashcards Preview

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Flashcards in Lecture 4: Velopharyngeal Dysfunction (VPD) Deck (18)
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1
Q

Types of resonance disorders

A

Hypernasality
Hyponasality
Cul-de-sac
Mixed

2
Q

What is Hypernasality?

A

coupling of oral & nasal cavities during nonnasal (oral) sounds; “muffled” due to damping effect (sound absorption) thru turbinates

3
Q

What is Hyponasality?

A

reduced nasal resonance of nasal sounds due to blockage; “stuffed up”

4
Q

What is cul-de-sac resonance?

A

structural obstruction; muffled; “potato-in-the-mouth”

5
Q

What is mixed resonance?

A

combo on different sounds; common in apraxia

6
Q

What are other effects of VPD?

A
Nasal air emission
Nasal grimace
Weak or omitted consonants
Short utterance length
Altered rate and duration
Compensatory Artic
7
Q

What is nasal air emission?

A

“rustle” due to vp leak or fistula on plosives, fricatives, affricates

8
Q

What is nasal grimace?

A

m. contraction above nasal bridge in effort to achieve vp closure

9
Q

Weak or omitted consonants

A

due to reduced air pressure in oral cavity

10
Q

Short utterance length

A

frequent replacing of air pressure

11
Q

Altered rate and duration

A

longer time for utterances, longer VOT

12
Q

How do they compensate articulation?

A
Middorsum palatal stop a.k.a. palatal-dorsal
Backing
Velar fricative
Oral consonant nasalization
Vowel nasalization
Nasal snort
Nasal sniff
Pharyngeal
Posterior nasal fricative
Glottal stop
/h/ for voiceless plosives
Breathiness
13
Q

Describe dysphonia

A
Breathy
Hypernasal 
Hoarse
Low intensity
Glottal fry
Hyperfunctional 
Vocal fold nodules
14
Q

What are some factors that impact VPI and speech?

A

Size of VP opening
Inconsistency of VP closure
Abnormal artic
Abnormal phonation

15
Q

What are causes of VPD?

A

VPInsufficiency (anatomy - structure)
VPIncompetence (physiology - mvmt)
VP mislearning

16
Q

What causes VPInsufficiency?

A

Cleft palate
Short velum
Deep pharynx (cranial base anomalies)
Adenoid atrophy or irregularity or adenoidectomy
Hypertrophic tonsils or tonsillectomy (rare)
Teeth malocclusion (Class III) - underbite
Oral cavity tumor

17
Q

What causes VPIncompetence?

A
Abnormal m. insertion
Hypotonia/poor pharyngeal wall mvmt
Dysarthria, apraxia, neurom. disorders
CN defects ( Unilateral velar paralysis/paresis)
Velar fatigue
18
Q

What causes VP misleading?

A

Faulty artic
Bad speech habits
Hearing loss