communication and swallowing issues for adults …...communication and swallowing issues for adults...
TRANSCRIPT
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Communication and
Swallowing Issues for Adults
with
Cerebral Palsy
May 12, 2008
Marilyn Seif Workinger, PhD
Speech Language Pathologist
Marshfield Clinic
Marshfield, WI
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THREE TOPICS
EFFECTS OF AGING ON SPEECH
PRODUCTION
EFFECTS OF AGING ON USE OF AAC
EFFECTS OF AGING ON SWALLOWING
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SPEECH PRODUCTION
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Speech Disorders: Dysarthria
“A collective name for a group of
speech disorders that are due to
disturbances in muscular control of
the speech mechanism resulting
from impairment of any of the basic
motor processes involved in the
execution of speech” Darley,
Aronson, and Brown (1975)
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Dysarthria Associated with
Spasticity
Breathy voice quality
Monopitch
Monoloudness
Hypernasality
Voice quality change through an
utterance
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Dysarthria Associated with
Dystonia
Slow rate
Dysrythmia
Inappropriate voice stoppage or
release
Reduce Stress
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Severity and Extent of
Dysarthria
Severity of motor involvement
Topographical distribution of motor
involvement (Hardy, 1983)
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Change Over Time
Dysarthria of Spasticity
Mild to moderate motor involvement
Speech milestones WNL or mildly
delayed
Dysphonia secondary to disorders of
speech breathing
Can be regression in speech production
Question related to periods of rapid
growth or spending greater time in fixed
positions
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Changes: Spasticity
Reduced loudness
Changes in voice quality
Changes in resonance (increasing
hypernasality)
Keesee, 1976
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Change Over Time
Dysarthria of Dystonia
Speech milestones severely delayed
With gain in body weight, stability and increased motor control, improved speech motor control is seen
May become intelligible in teen years and early adulthood
AAC early on and many continue to use through adulthood
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Dysarthria and Aging
Decline for both groups (speculation)
With increasing scoliosis and kyphosis, less
standing, decreased mobility would expect
reduced control of speech breathing with
reduced loudness and changes in voice
quality
May also see increased velopharyngeal
incoordination with increased hypernasality,
reduced loudness and voice quality changes
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Treatment
Palatal lift speech prosthesis
Lee Silverman Voice Treatment
(LSVT)
Reports of improved speech
production with use of intrathecal
baclofen pump
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AUGMENTATIVE/
ALTERNATIVE
COMMUNICATION
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Augmentative/Alternative
Communicaton
Long-term study shows that individuals using AAC change in their pattern of communication over time. (Lund and Light, 2007.
AAC users have a restricted range of communicative functions.
High number of confirmations and denials
Infrequently ask questions
Range of functions in adults similar to their use at preschool level
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Change in AAC Use
Use of AAC is a multi-modal process
Develop unaided modes, eye gaze,
gesture or vocalization
Develop most efficient and effective
means
Modes dependent upon familiarity
with communication partner
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Augmentative/Alternative
Communication
Access to AAC may become
increasingly more difficult with
decreased motor ability
Michael Williams, AAC user: “People
with CP often have narrow functional
windows. … The limitations of age
can push familiar independent
functioning right out the window.”
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AAC
MW: “…individuals with significant
CP tend to find the one „best‟ way to
do things. …they use one set of
muscles and joints until they wear
out. Clearly back-up and secondary
AT interfaces need to be supported
throughout the lifespan”
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AAC
David Beukelman: Tends to see
most change in individuals who use
head movement to access devices.
As they experience reduced motor
control and range of movement, they
are no longer to use that mode of
access or are much less efficient
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AAC Treatment/
Research Needs
Whenever possible, develop more than one means of access
Establish a fitness program that includes work on maintenance of ROM, strength and coordination for maintaining access mode
Develop interventions to teach active participation in interactions and social strategies to extend interactions
Interventions to change communication partner‟s behaviors to facilitate more effective dialogue
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SWALLOWING
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Swallowing
Michael Williams: “Most important
would be the fact than many, many
individuals with CP who use AAC
are NOT growing old. Something
happens around age 40 that causes
aspiration, pneumonia and death.
This is unacceptable and a critical
area for research.”
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Swallowing: Children with CP
Feeding problems present in 25% to 90% of children with CP, dependent upon extent and severity of motor involvement.
Of those who aspirate, 94% of patients showed silent aspiration
Aspiration secondary to GERD is also a significant factor
Arvedson and Brodsky, 2002
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Swallowing: Speculation
Many individuals with CP have
compromised swallowing. As
they age and have increased
incoordination this “pushes
them over the edge”
Structural changes could also
be implicated
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Contributing Factors:
Most individuals show
involvement of the oral phase. If
pharyngeal weakness begins,
they are not able to protect the
airway.
Reduced respiratory effort for
cough
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Contributing Structural
Factors:
Dental changes
Scoliosis influencing head
control/posture or respiratory
support
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Research Needs:
Who is most at risk?
What is the natural history?
What treatments (if any) are beneficial? LSVT, Shaker exercises
At what point should an alternate means of nutrition be considered?
Would periodic monitoring of swallow be beneficial for some individuals?
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Thank You