Esophagus Flashcards
Esophagus blood supply (3)
inferior thyroid artery (cervical), bronchial arteries (thoracic), left gastric artery (abdominal)
Type I achalasia description
classic - complete failure of LES relaxation and absent peristalsis
Type II achalasia description
achalasia w/ pressurization - panesophageal pressurization w/ incomplete relaxation of LES
Type III achalasia description
spastic - spasms or rapid, premature contractions along the esophagus, without relaxation
Prague Criteria: esophagitis severity (degree of damage)
0: no injury
1: erythema
2: inflammation with erosions
3: ulcerations
Prague Criteria: extent of involvement
0: none
1: <25%
2: 25-50%
3: 50-75%
4: >75%
Prague Criteria: type of lesion
mild
moderate
severe stricture formation
Normal LES pressure
10-30 mmHg
Normal integrated relaxation pressure (IRP)
<15 mmHg
Normal esophageal pressures
30-40 mmHg
Normal amplitude for distal contractions
20-80 mmHg
Type I achalasia treatment (2)
pneumatic dilation or Heller myotomy
Type III achalasia treatment (2)
botox or surgery (due to spastic nature)
Mucosa type w/ Barrett’s
columnar, intestinal metaplasia
Octreotide dose for bleeding varices
50 mcg IV bolus, then 50 mcg/hr infusion
Biopsy results diagnostic for EoE
> /= 15 eosinophils/hpf
Follow-up study needed when EoE is diagnosed
repeat endoscopy after 8 weeks of PPI therapy to confirm diagnosis
Indications for dilation of esophageal webs (2)
webs > 1 cm
webs causing dysphagia
LA grade A esophagitis
1+ break < 5mm
doesn’t extend 2 mucosal folds
LA grade B esophagitis
1+ break > 5mm
doesn’t extend 2 mucosal folds
LA grade C esophagitis
1+ break extends 2+ folds
involves < 75% of the esophageal circumference
LA grade D esophagitis
1+ break >/= 75% of the esophageal circumference
Oropharyngeal dysphagia vs esophageal onset
oropharyngeal: immediate (initiation of swallowing)
esophageal: delayed (after swallowing)
Oropharyngeal dysphagia vs esophageal solids and liquids symptoms
oropharyngeal: difficulty w/ both
esophageal: start w/ solids, can progress to liquids