Swallowing disorders Flashcards

1
Q

What are signs of oropharyngeal + oesophageal disease?

A
  • dysphagia
  • drooling saliva
  • halitosis
  • odynophagia (that’s painful swallowing)
  • regurgitation (only oesophagus)
  • difficulty lapping or forming bolus
  • excessive jaw or head motion
  • dropping food from mouth
  • drooling saliva / foaming at mouth
  • persistent, ineffective swallowing
  • nasal discharge
  • gagging
  • coughing
  • failure to thrive
  • reluctance to eat or pain
  • halitosis
  • blood-tinged saliva
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2
Q

What’s the difference between functional + morphological diseases?

A
  • Functional = abnormal neuromuscular activity
  • Morphological = Structural abnormalities
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3
Q

What can cause functional neuromuscular dysphagia?

A
  • Cricopharyngeal chalasia/achalasia
  • myasthenia gravis
  • brainstem disease
  • peripheral neuropathy
  • polymyopathy
  • hypothyroidism
  • botulism
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4
Q

What can cause morphological dysphagia?

A
  • oropharyngeal inflammation
  • oropharyngeal trauma
  • foreign bodies
  • neoplasia
  • congenital / developmental
  • Various e.g. =
    -hare-lip, lip-fold deformities
    -cleft palate
    -malocclusion
    -craniomandibular osteopathy
    -temporomandibular dysplasia
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5
Q

What can cause halitosis?

A
  • oropharyngeal disease = inflammation, neoplasia, foreign body
  • oesophageal disease
  • dietary associated
  • malabsorption
  • dental disease
  • nasal cavity & sinus disease
  • uraemia
  • liver disease
  • anal sac disease
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6
Q

What is regurgitation?

A
  • PASSIVE EVENT (c.f. vomiting)
  • undigested food
  • covered by mucus/saliva (basic)
  • immediate, or delayed
  • neutral pH
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7
Q

What is Pseudoptyalism + Ptyalism?

A
  • Pseudoptyalism = failure to swallow normal volume of saliva
  • Ptyalism = increased saliva production
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8
Q

What are secondary signs of oesophageal + oropharyngeal disease?

A
  • malnutrition / dehydration
  • anorexia / polyphagia
  • aspiration pneumonia / tracheal compression =
  • cough
  • dyspnoea
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9
Q

How would you investigate a swallowing problems?

A
  • History & physical examination
  • Diagnostic imaging
  • Endoscopy
  • Laboratory investigations
  • FNA
  • Biopsy
  • Special tests
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10
Q

What history would be noted with vomigurgitation?

A
  • What is brought up
  • When is it brought up (timing wrt feeding)
  • Signs of vomiting
  • Concurrent signs
  • Duration of illness
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11
Q

What radiographs should be taken?

A
  • Survey Radiographs = head, neck, thorax
  • Barium oesophagram ± fluoroscopy =
  • barium mixed with food
  • iodine contrast if perforation suspected (barium in abdomen = granulomatous inflammation)
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12
Q

What would you do with lab investigations?

A
  • Haematology
  • Serum biochemistry & urinalysis
  • Virology (cats especially)
  • “Special” tests = Anti-ACh receptor antibody
  • 2-M antibodies (muscles of mastication)
  • ACTH stimulation test
  • Thyroid testing?
  • Toxicological tests?
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13
Q

What are major diseases of the oesophagus?

A
  • Motility = Megaoesophagus, Congenital, Acquired (Primary/Secondary), Dysautonomia, Hiatal Hernia
  • Obstruction = Vascular Ring, Stricture, Foreign body, Neoplasia
  • Inflammation = Oesophagitis, Reflux, Hiatal Hernia
  • Misc = Diverticulum, Broncho-oesophageal fistula
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14
Q

What is megaoesophagus?

A
  • “Oesophageal dilation with functional paralysis”
  • Failure of progressive peristalsis
  • Primary/idiopathic
  • Secondary/Acquired
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15
Q

How is megaoesophagus diagnosed?

A
  • Diagnosis by radiography ± contrast =
    -uniformly dilated, gas and/or fluid filled
    -ventral displacement of trachea
    -secondary aspiration pneumonia
  • Fluoroscopy occasionally essential =
    -oesophageal dysmotility
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16
Q

What are different causes of secondary megaoesophagus?

A
  • CNS = Distemper, Cervical, vertebral, Brainstem, Neoplasia, Trauma
  • Neuropathies = Polyneuritis, Poly-R-N, Ganglio-R, Dysautonomia, Axonal, Neuropathy, Spinal Muscular, Toxicity (lead/thallium/acrylamide), Vagus
  • Neuromuscular = Myasthenia, Botulism, Tetanus, Acetylcholinesterase
  • Oesophageal = Oesophagitis, SLE, Glycogen storage, Polymyositis, Dermatomyositis, Cachexia, Trypanosomiasis, HypoAC, HypoT
  • Misc = Pyloric stenosis, GDV, Pituitary Dwarf, Thymoma, Mediastinitis
17
Q

How is idiopathic megaoesophagus treated? What is the prognosis?

A
  • Tx = Feeding from height, Slurry, textured food (meatballs), Metoclopramide
  • Prognosis = guarded (danger of aspiration pneumonia)
18
Q

What can cause oesophagitis?

A
  • ingestion of caustics and irritants
  • foreign bodies
  • acute and persistent vomiting
  • gastric reflux
19
Q

What are clinical signs of oesophagitis?

A
  • anorexia
  • dysphagia
  • odynophagia
  • regurgitation
  • hypersalivation
20
Q

How is oesophagitis diagnosed?

A
  • Clinical signs
  • Endoscopy
  • Response to empirical treatment
21
Q

What is treatment of oesophagitis?

A
  • Symptomatic (rest the oesophagus) =
  • frequent small feeds
  • antibiotics
  • liquid antacids
  • local anaesthetics
  • gastrostomy tube feeding
  • Sucralfate
  • Metoclopramide
22
Q

What can cause intraluminal, intramural + extramural oesophageal obstruction?

A
  • Intraluminal = foreign body
  • Intramural =
  • neoplasm
  • stricture
  • granuloma
  • Extramural =
  • thyroid
  • thymic /mediastinum
  • vascular ring
23
Q

What are causes of oesophageal stricture?

A
  • fibrosis after ulceration of mucosa by =
  • foreign body
  • caustic material
  • severe oesophagitis
  • gastric reflux esp. pooled secretions during GA
  • DRUG THERAPY e.g. doxycycline in cats
24
Q

What are the 2 different stricture dilation techniques?

A
  • Bougienage = downwards pressure (shoving a rod in, to try stretching ), Longitudinal shear, increased risk of perforation
  • Balloon dilation = radial stretch, stationary force - less risk of perforation
25
Q

How would you diagnose oesophageal foreign body?

A
  • Radiography - NO Barium
  • Oesophagoscopy
26
Q

What is treatment of oesophageal foreign body?

A
  • peroral approach =
  • flexible or rigid endoscope
  • preferably pull FB to mouth
  • or push to stomach for gastrotomy
  • check for oesophageal tear
  • surgical removal = last resort, essential if large laceration
27
Q

What should be done after removal of foreign body?

A
  • Post removal oesophagitis
  • Radiographs (pneumomediastinum)
  • PEG Tube
  • Omeprazole
  • Sucralfate
28
Q
A