Digestion & Metabolism 2: SA Esophageal & Swallowing Dz Flashcards
esophagus STRUCTURE in…
CATS?
DOGS?
CAT esophagus = SMOOTH muscle in DISTAL esophagus SPIRALS, then some SKELETAL
DOG esophagus = TWO OBLIQUE LAYERS OF SKELETAL MUSCLE
what is this STRUCTURE in the esophagus? WHAT SPECIES
SPIRAL formation/SMOOTH MUSCLE, NORMAL finding in CAT ESOPHAGUS
ID SPECIES of this esophagus
DOG, smoother than cat
NORMALLY, esophagus on rads…
IS NOT VISIBLE because it’s SILHOUETTED BY OTHER SOFT TISSUE STRUCTURES
for DYSPHAGIA…
2 affected areas?
2 diagnostic tests?
affected areas?
1. ORAL CAVITY
2. SWALLOWING MECHANISM
diagnostic test?
1. ORAL EXAM
2. VIDEOFLUOROSCOPIC BARIUM SWALLOW
for REGURGITATION…
2 affected areas? which one is more common?
2 diagnostic tests?
2 affected areas?
1. ESOPHAGUS is MORE COMMON
2. STOMACH (with DISTENSION)
2 diagnostic tests?
1. CHEST LATERAL RADS
2. NECK LATERAL RADS
if VOMITING…
affected area?
2 diagnostic tests?
affected area? = ABDOMEN
2 diagnostic tests?
1. ABDOMINAL RADS
2. ABDOMINAL US
what is the MOST IMPORTANT DIAGNOSTIC TEST for DIAGNOSING SWALLOWING DISORDERS?
VIDEO FLUOROSCOPIC BARIUM SWALLOW
___ ___ is the MOST COMMON esophageal disease in ____, but is VERY RARE in ___
GENERALIZED MEGAESOPHAGUS, DOGS
RARE in CATS
3 FORMS of megaesophagus?
3 common clinical signs?
2 diagnostic tests & done when WHAT clinical sign is present?
3 forms…
1. CONGENITAL
2. ACQUIRED IDIOPATHIC
3. ACQUIRED SECONDARY
3 common clinical signs?
1. REGURGITATION
2. WEIGHT LOSS
3. HYPERSALIVATION
2 diagnostic tests & done when WHAT clinical sign is present?
1. NECK rads
2. THORACIC rads
done when REGURGITATION is present
ID DZ
GENERALIZED MEGAESOPHAGUS
ID DZ
GENERALIZED MEGAESOPHAGUS
CONGENITAL megaesophagus…
RARELY reported in what species?
what AGE animals are predisposed?
what 3 BREEDS are predisposed?
diagnosis? (2, which one is MOST helpful?)
what disease do we need to RULE OUT?
RARELY in CATS
in YOUNG animals
3 DOG BREEDS…
1. MINI SCHNAUZER
2. WIREHAIRED FOX TERRIER
3. GERMAN SHEPHERD
diagnosis?
1. SURVEY rads of neck/thorax
2. VIDEO FLUOROSCOPIC BARIUM SWALLOW
we need to rule out VASCULAR RING ANOMALY (aorta wrapping around trachea/esophagus)
ACQUIRED SECONDARY MEGAESOPHAGUS…
what is the most COMMON cause of this?
what is the SECOND MOST COMMON CAUSE?
2 other common causes?
2 RARER causes?
most common = MYASTHENIA GRAVIS
SECOND most common = ADDISON’S DZ
2 other causes?
1. ESOPHAGITIS
2. OBSTRUCTION of esophagus
2 RARER?
1. NEUROLOGICAL
2. POLYMYOSITIS
diagnostic WORKUP for ACQUIRED SECONDARY MEGAESOPHAGUS (5, one is OPTIONAL)
- CBC/CHEM/UA
- THORACIC RADS
–> do TRACHEAL WASH if EVIDENCE of ASPIRATION PNEUMONIA - ACh receptor Ab TITER
- ACTH STIM TEST/BASELINE CORTISOL
- +/- ENDOSCOPY