chapter 4: disorders of deglutition Flashcards
in dysphagia, the anatomic and/or neuromuscular dysfunctions are the actual _____ leading to the _____ for which treatment is designed.
disorder, symptoms
________ and _________ are symptoms, not the disorder
aspiration, penetration
a radiographic study (MBS) should be completed on any patient who is suspected of having _________ or who may be __________.
pharyngeal dysphagia, aspirating/penetration/coughing
An MBS should provide three types of information
a. anatomic/neuromuscular dysfunction or cause
b. whether oral eating is recommended (and bolus consistency)
c. plan treatment/ therapy
(d. trial treatments)
a patients description of his/her swallowing problem can be ______
erroneous
OTT stands for
oral transit time
OTT begins from the initiation of the ________ and ends when the bolus head reaches _________
posterior propulsion, faucal pillars/ base of tongue
The OTT time is approximately
1 second
when does the pharyngeal DELAY time (PDT) begins?
the bolus head reaches the base of the tongue and ends when the swallow is triggered
the pharyngeal TRANSIT time (PTT) is the time
from the time the trigger occurs until the bolus tail passes the UES
the PTT takes
less than 1 second
it is critical to know whether aspiration occurs …
before, during or after the pharyngeal swallow
normal mastication requires
- intact mandible
- intact maxilla
- intact buccal musculature
- intact lingua musculature
the purpose of the oral preparation for the swallow is to break down food, mix it with saliva, and form it …
into a cohesive bolus
what are the disorders in oral preparation of the swallow
a. cannot hold food in the mouth anteriorly-reduced lip closure
b. cannot hold a bolus reduced tongue shaping/coordination
c. cannot form a bolus reduced range of tongue motion or coordination
d. material falls into anterior sulcus reduced labial tension/tone
e. material falls into lateral sulcus reduced buccal tension/tone
f. abnormal hold position-reduced tongue control/tongue thrust
if food falls from the mouth, check if the patient is a ________ _________, check for reduced _____ closure.
mouth breather, lip
could be the result of a stroke or lack of sensory information from cranial nerve VII
inability to hold a bolus of liquid or paste can be the result of the inability to _____________ around the material.
shape the tongue
during the oral prep phase the ____ _______ contacts the back of the tongue to prevent premature spillage
Soft palate
premature spillage is normal during _______ but not while holding a liquid or pudding bolus.
mastication
premature spillage can result in
coughing/aspiration/penetration
inability to hold bolus shape is due to reduced ________, while premature spillage is due to ______ or ________.
tongue movement, weak velar position, poor buccal control
reduced tongue motion/coordination will prevent the formation of the _____ resulting in food spread throughout the oral cavity just prior to the swallow.
bolus
food falling into the anterior cavity is the result of reduced _____ and _______ tone
labial and facial
the dominate muscle of the cheeks is the ________ innervated by the ______ branch of the ____ cranial nerve.
buccinatior, buccal, VII