Esophagus Flashcards
The various causes of dysphagia can be categorized into 3 types:
I) Transfer disorders:
2) Anatomic or structural disorders:
3) Motility disorders:
I) Transfer disorders:
This is due to neurological deficit, resulting in difficulty transferring food from the mouth to the esophagus and leads to oropharyngeal muscle dysfunction. Symptoms include coughing, gagging, and nasal regurgitating immediately upon swallowing. Causes include CVA, ALS, etc
2) Anatomic or structural disorders:
This is due to an actual physical obstruction of the esophageal lumen.
3) Motility disorders:
Trouble with transporting food from the upper esophagus to the stomach.This can be a failure of effective peristalsis and/or failure of LES relaxation. It has endogenous or exogenous causes.
the first test usually performed in the workup of dysphagia, unless the etiology is known from past evaluations
barium swallow
esophageal manometry in dysphagia
usually done only if dysphagia persists after negative barium swallow and EGD studies
workup of dysphagia
1=barium swallow
2= endoscopy if needed,
3= manometry studies if needed.
Achalasia characteristic features of the history
- dysphagia for solids and liquids,
- long-standing symptoms, usually years,
- regurgitation of food, especially at night,
- no age or gender predilection.
diagnosis of achalasia
1) Barium Swallow: bird-beak
2) EGD: to confirm the Dx and exclude a tumor
3) Esophagealmanometry:Generally done as a last test to confirm the diagnos is before treatment is offered. This will clearly show the lack of normal peristalsis and the tight non-relaxing LES.
pseudoachalasia and secondary achalasia
if
1) onset of symptoms is rapid
2) patient is > 60 years
3) symptoms arc progressive
4) include profound weight loss
Complications of achalasia
aspiration pneumonia and weight loss
treatment for achalasia
pneumatic dilution
myotomy
Botulinum toxin is effective in 65% of cases but requires repeat therapy in 6-12 months
Calcium-channel blockers and nitrates have been used in the past with, at best, temporary partial relief
DES often precipitated by
cold or carbonated liquids.
Barium swallow in DES
Usually normal but may show corkscrew pattern
Manometry in DES
Confirms the diagnosis by revealing intermittent simultaneous contractions
LES pressure in DES
May be low, normal or high
What to do if reflux can be considered as the cause of DES
Perform 24h esophageal pH recording or give twice daily PPI for 3months
Treatment of DES
Think of this as irritable bowel of esophagus
Reassurance is the most important part of therpy
Avoiding certain foods
Anatomical obstructions in younger and older
Younger: schatzki ring (lower esophageal ring)
Older: cancer and stricture
Schatzki ring
intermittent solid food dysphagia. especially for meal and bread
LE ring is always associated with
hiatal hernia
pathogenesis of LE ring
reflux may have a role in pathogenesis. However, at endoscopy there is usually no obvious esophagitis
LE ring diameter in barium swallow to cause symptoms
13 mm
Esophageal stricture presentation
Esophageal stricture presents with a history of’ constant. not intermittent. dysphagia for solid foods.
Usually the stricture is due to
a long history of acid reflux
prolonged nasogastric tube placement
Malignant esophageal Obstruction
Usually the history is of ‘rapid progression or symptoms: solid food dysphagia to soft food difficulties and finally to problems with liquids.
Plummer-Vinson syndrome
dysphagia due to a web in the cervical esophagus
in females who have iron deficiency anemia
a slight increased risk of esophageal cancer.
bulbar palsy
pseudobulbar palsy
Bulbar palsy causes dysphagia due to weakness,whereas pseudobulbar palsy causes dysphagia due to disordered contractions
dysphagia and aspiration treatment
This aspiration is often well tolerated and does not need treatment, unless pulmonary problems arise.