6- Dysphagia Flashcards
What is the innervation of salivation? ππ
Which cranial nerves are important for eating and swallowing?π
Parasympathetic Innervation:
CN 9: Parotid gland
CN 7: Submandibular, sublingual
Ref: Wikipedia.
CN for swallowing
CN V, VII, IX, X, XI, XII (All except eyes)
Ref: Review Notes 2012
Definition of Dysphagia vs Odynophagia
Dysphagia
Difficulties with swallowing
Odynophagia
Painful swallowing
Define aspirations vs silent aspiration. ππ
Aspiration
Entry of material into the airway below the level of the true vocal cords.
Silent Aspiration
Entry of material into the airway below the level of the true vocal cords, without cough or any outward sign of difficulty. Such cases may be missed in the absence of a videofluoroscopic swallow study (VFSS) or fiberoptic endoscopic evaluation of swallowing (FEES) assessment
ERABI Module 3 pg8
What are the signs of silent aspirations. ππ
- Recurrent lower respiratory infections
- Low-grade fever
- Leukocytosis
- Chronic congestion
ERABI Module 3 pg8
Define Dysphaigia - Penetration - Aspiration ππ
Dysphagia = difficulty with swallowing.
Penetration = entry of material into the larynx but not below the true vocal cords.
Aspiration = entry of material into airway below level of true vocal cords.
Stroke Rehabilitation Clinician Handbook 2020 Model 6 pg2
Phases of swallowing & problem seen with each phase ππ
Mention which phase is the most critical and list its complications ππ EXAM 2021
1- Oral Preparatory Phase
Drooling and pocketing
2- Oral Propulsive Phase
Drooling and pocketing, Slow, effortful eating, difficulty swallowing pills
3- Pharyngeal Phase
Aspiration, food sticking, choking and coughing, wet/gurgling voice, nasal regurgitation
4- Esophageal Phase
GERD and food sticking
Cuccurollo 4th Edition Chapter 1 Stroke pg38
Stroke Rehabilitation Clinician Handbook 2020 Model 6 pg3
List 8 Medical Conditions That Can Cause or Associated with Dysphagia
π‘ Cognition - Brain - Corticobulbar Tract - Brainstem - NMJ - Connective Tissue
- Alzheimer Disease and Other Dementias
- Cerebrovascular Accident (Stroke)
- Traumatic Brain Injury
- Amyotrophic Lateral Sclerosis
- Multiple Sclerosis
- Parkinson Disease and Parkinson-like Syndromes
- Cerebral Palsy
- Lateral Medullary Syndrome
- Myasthenia Gravis
- Muscular Dystrophy and Myotonic Dystrophy (Myopathies)
- Dermatomyositis and Polymyositis
- Rheumatoid Arthritis
- Systemic Lupus Erythematosus
Dysphagia. 3 structural & 3 peripheral nervous system causes?ππ
CNS: Stroke, TBI, Dementia, Parkinson
PNS: MS, GBS, ALS, Polio
Myopathic: Dermatomyositis, Polymyositis, Myasthesia Gravis
Structural: Tumor, Diverticulum, Cervical Web
UpToDate
Risk factors for development of pneumonia secondary to aspiration includeπ
- Decreased level of consciousness
- Tracheostomy
- Nasogastric tube (NGT) feeding
- Reflux
- Dysphagia
- Emesis
- Prolonged pharyngeal transit time
Cuccurollo 4th Edition Chapter 1 Stroke pg39
What are independent predictors of pneumonia following stroke?
π‘ Presence of β₯2 these risk factors = 90.9% sensitivity and 75.6% specificity for development of pneumonia.
ORIGINAL ANSWER
- Age > 65 years
- Dysarthria or aphasia
- Modified Rankin Scale score β₯ 4
- Abbreviated Mental Test score <8
- Failure on water swallow test
MODIFIER ANSWER βEASYβ
- Older age
- Dysarthria/no speech due to aphasia
- Severity of post-stroke disability
- Cognitive impairment
- Abnormal water swallow test result
Ref: EBRSR module 15 pg 10.
https://www.ahajournals.org/doi/10.1161/strokeaha.106.478156
Risk Factors Associated with Aspiration Difficulties Post-Stroke ππ
What are the factors more likely to be associated with aspiration pneumonia following stroke?
- Brainstem stroke.
- Poor oral hygiene.
- Difficulty swallowing oral secretions.
- Coughing/throat clearing, choking or wet gurgly voice quality after swallowing water.
- Weak voice and cough.
- Immunologically compromised or chronic lung disease.
- Recurrent lower respiratory infections.
- Aspiration or pharyngeal delay on videofluoroscopic modified barium swallowing (VMBS).
Stroke Rehabilitation Clinician Handbook 2020 Model 6 pg3
Strongest predictor of dysphagia following TBI? ππ
Initial severity of brain injury appears to be the strongest predictor of dysphagia related aspiration.
ERABI Module 3 pg8
What are the risk factors for dysphagia post-ABI? ππ
Phase 1: Beginning of injury
Head Injury: Severe TBI (GCS, coma), CT
- Severity of brain injury
- Lower Glasgow Coma Score on admission (GCS 3-5)
- Duration of coma
- Severity on CT Scan findings
- Severe cognitive and cognition disorders
Structural Injury: Intervention, Fracture
- Translaryngeal (endotracheal) intubation
- Duration of mechanical ventilation
- Tracheostomy
- Physical damage to oral, pharyngeal, laryngeal, and esophageal structures
- Oral and pharyngeal sensory difficulties
ERABI Model 3 pg7
What are the risk factors for aspiration following an ABI? ππ
Phase 2: TBI Man doing fiberoptic endoscopic evaluation
Head Injury
- Lower Glasgow Coma Score (3-5)
- Poor cognitive functioning
- Brainstem involvement
Structure Injury
- Presence of a tracheostomy
- Prolonged period of mechanical ventilation
Assessment
- Difficulty swallowing oral secretions
- Hypoactive gag reflex
- Reduced pharyngeal sensation
- Coughing/throat clearing or wet, gurgly voice quality after swallowing water
- Choking more than once while drinking 50 ml of water
- Recurrent lower respiratory infections
- Dependence on feeding assistance
ERABI Model 2
What are the risk factors for aspiration pneumonia post-ABI? ππ
Phase 3: TBI man, feeding with chest infection and polypharmacy.
- Dependence in self-feeding and oral care
- Amount of tooth decay
- Need for tube-feeding
- Smoking
- Greater than one medical diagnosis
- Total number of medications
ERABI Module 3 pg9
Feeding dysfunction in PD
List 4 adaptive equipment to improve feeding in PD patient ππ
Gastrointestinal Problems in PD
-
Swallowing Dysfunction
- Dysphagia due to loss of lingual control and inability to propel the bolus due to delay in the contraction of pharyngeal muscles.
- Assessment β Modified barium swallows
- Treatment β oral-motor exercises and providing compensatory strategies
- Malnutrition β gastrostomy feeding tube
-
Delayed Gastric Emptying
- Nausea and vomiting, GERD, βheartburnβ or indigestion
- Metoclopramide may worsen dyskinesias (extrapyramidal s/e)
-
Constipation
- Causes: autonomic dysfunction, medications, limited mobility, impaired hydration
- Tx: Hydration, increased physical activity, and high-fiber diets.
Feeding Equipment
- Plate-guards
- Swivel fork and spoons
- Weighted utensils
- Large-handled cups with straw
Cuccurollo 4th Edition Chapter 12
Movement Disorder pg872 Table 12-3
DeLisa 5th Edition Chapter 26 Movement Disorder pg650-651