SLIDE #15 - dysphagia Flashcards
what is another word for swallowing ?
deglutition
what is “normal swallowing” ?
Neuromuscular act of moving substances from the mouth into the throat and stomach
what are the 3 reasons we swallow ?
1) Maintenance
2) Ingestion
3) Protection
what does “maintenance” mean in regards to swallowing ?
Remove natural buildup of saliva in oral cavity
what does “maintenance” mean in regards to swallowing ?
- Consume liquids and food
- produce bolus for swallowing
what does “Ingestion” mean in regards to swallowing ?
Protect respiratory system from entry of foreign material (In adults, upper respiratory and digestive paths are crossed)
what are the main structures involved in swallowing ?
- oral cavity
- pharynx
- trachea
- esophagus
- nasal cavity
define the “oral cavity” in regards to being a structure involved in swallowing ?
- lips (prepare to go backwards)
- tongue ( helps create bolus)
- teeth (chew)
- saliva (enzymes that help break down)
define the “nasal cavity” in regards to being a structure involved in swallowing ?
- velum
- lifts up so thigs don’t go up nasal cavity
define the “pharynx” in regards to being a structure involved in swallowing ?
- muscles (contract to move bolus to esophagus)
- epiglottis (fold)
- valleculae (pooling area that collects before swallowing)
- upper esophageal sphincter (helps move bolus to esophagus)
define the “trachea” in regards to being a structure involved in swallowing ?
- cartilage
- doesn’t really affect
define the “esophagus” in regards to being a structure involved in swallowing ?
- Muscle (peristalsis)
- long tube that moves food down
- rhythmic muscle contraction
how many stages of swallowing are there ?
3
what are the 3 stages of swallowing ?
- Oral (transfer)
- Pharyngeal (transport)
- Esophageal (entrance)
describe the purpose of stage #1 (Oral (transfer)) :
To prepare substance to be swallowed and move
bolus to rear of oral cavity until swallow reflex is triggered (in
pharyngeal phase)
how does stage #1 (Oral (transfer)) occur ?
– Begins when food/liquid enters mouth (lips sealed)
– Tongue and cheek muscles move material for mastication
– Saliva softens food to help create a bolus
– Posterior tongue action that moves the bolus back
– Ends when bolus passes through anterior faucial arches and swallowing reflex is initiated
describe the purpose of stage #2 (Pharyngeal phase (transport)) :
To propel bolus through pharynx to entrance to esophagus
how does stage #2 (Pharyngeal phase (transport)) occur ?
Starts when swallow reflex (involuntary) is triggered
- Velum raises (velopharyngeal closure)
- Pharynx contracts and squeezes
- Larynx moves up and closes (vocal folds close, epiglottis lowers)
- Reflexive contractions of pharyngeal muscles moves bolus towards the esophagus
- Upper esophageal sphincter opens
how does stage #3 (Esophageal phase) occur ?
- Muscles of esophagus move bolus down to stomach in peristaltic contractions
- Food propelled through esophagus by peristatic action (and gravity) towards the stomach
- Not under voluntary control
- After bolus enters esophagus, breathing returns to normal
FILL IN THE BLANK
once the swallowing reflex is triggered, everything else is pretty __________
automatic
what is dysphagia ?
A condition in which an individual exhibits unsafe or inefficient swallowing pattern
what can dysphagia include ?
difficulty with any step of feeding process
what is dysphagia due to ?
Due to developmental, neurological, or structural problems that alter normal swallowing process
within what age group is dysphagia most common within ?
very common in people who have had a stroke (50-75%)
how common is dysphagia within common adults ?
15-30%
FILL IN THE BLACK
dysphagia is very common with those who have had a _____
stroke
what are some negative outcomes of dysphagia ?
- Malnutrition, weight loss, growth delay (in children), dehydration, fatigue, ill health
- Frustration, depression, reduced independence, social isolation
- Dependence on feeding tubes
what does Penetration mean ?
Food or liquid enters trachea, which can cause choking
what is the aspiration negative outcomes of dysphagia ?
– Food/liquid passes through larynx and into lungs, which can cause aspiration pneumonia
– Silent aspiration occurs without any signseath
can dysphagia lead to death ?
yes
how many types of dysphagia are there ?
3
what are the 3 types of dysphagia are there ?
1) Oropharyngeal dysphagia
2) Esophageal dysphagia
3) Functional dysphagia
which type of dysphagia is the most common ?
Oropharyngeal dysphagia
what does “Oropharyngeal dysphagia” affect :
- Affects transfer of bolus from pharynx to esophagus
- some kind of issues with getting pharynx to esophagus
what does “Esophageal dysphagia” affect:
Affects transfer of bolus from esophagus to the
stomach
what is the cause of “functional dysphagia” :
No clear cause or difficulty
types of dysphagia can be split into what two main phases ?
oral and pharygeal part
what are the problems of the oral phase (Oropharyngeal Dysphagia) :
- Poor lip seal
- Difficulty chewing
- Reduced tongue range and function (or tongue thrust)
- Premature swallow and aspiration before swallow
what are the consequences of the oral phase (Oropharyngeal Dysphagia) :
- Loss of food/drink from mouth
- Poor bolus formation and flow
- Food residue in various places
what are the problems of the oral phase (Pharyngeal Dysphagia) :
- Incomplete elevation of velum
- Reduced tongue force (movement of blous towards esophagus) of moving bolus through pharynx
- Delayed or absent swallow reflex
- Nasal and airway penetration
what are the consequences of the oral phase (Pharyngeal Dysphagia) :
- Food/liquid residue in nasal cavity and on pharyngeal wall
- Residue in pharynx after swallow
- Aspiration before or after the swallow
what are the problems of the oral phase (Esophageal Dysphagia) :
- Delayed or absent opening of upper esophageal sphincter
- Reduced esophageal contractions
- Incomplete bolus movement through the cricopharyngeal muscle
what are the consequences of the oral phase (Esophageal Dysphagia) :
- Residue in laryngeal area
- Backflow of food from esophagus to pharynx
- Sensation of food being stuck
what are the problems of the oral phase (Functional Dysphagia) :
Globus
what are the consequences of the oral phase (Functional Dysphagia) :
Feeling of food getting stuck or moving slowly through the
esophagus (e.g., when swallowing pills) (when swallowing pills without enough liquid)
which type of dysphagia is the least common ?
Functional Dysphagia
what are the different levels of severity ?
- mild
- moderate
- severe
- profound
describe “mild” severity :
some difficulties with oral preparation and pharyngeal functioning
describe “moderate” severity :
some danger of aspiration and penetration
describe “severe” severity :
serious risk of aspiration and penetration