Disorders of the Esophagus Flashcards
4 Layers of the Esophagus
● Stratified Squamous Epithelial Cells
● Inner Circular Muscle
● Myenteric Nerve Plexus- Can Provide local
reflexive control
● Outer longitudinal Muscle
Upper Esophageal Sphincter anatomy
thickened area of striated muscle
Lower Esophageal Sphincter anatomy
Tonically contracted smooth muscle via vagal cholinergic mechanism. During
swallowing, vagal inhibitory fibers allow sphincter to relax
Swallowing phases
- Pharyngeal Phase
Touch receptors in the oropharynx
Epiglottis covers the larynx - Esophageal Phase
Bolus passes past the Upper Esophageal Sphincter
_____: a subjective sensation of difficulty or abnormality of swallowing
Dysphagia
_____: pain with swallowing.
Odynophagia
_____: a non-painful sensation of a lump, tightness, foreign body or retained food bolus in the pharyngeal or cervical area
Globus sensation
_____: painful, difficult, or disturbed digestion, accompanied by symptoms such as nausea, heartburn, bloating, and stomach discomfort
Dyspepsia
Esophagitis is ____
Inflammation of the esophagus due
to an irritant or reaction of some kind
Most common etiologies of esophagitis
○ Reflux esophagitis (most common)
○ Pill-induced esophagitis - Antibiotics, NSAID
○ Infectious esophagitis
○ Eosinophilic esophagitis
○ Radiation/Chemo esophagitis
Inflammation of the esophageal mucosa can (if severe) ultimately lead to _____
erosions with hemorrhage
Infectious esophagitis is most common in _____
immunocompromised patients (HIV/AIDS, leukemia, Immunosuppressive medications)
Most common infectious etiology of esophagitis is ______.
Candida albicans
Medication-induced esophagitis occurs secondary to _____
NSAIDs, antibiotics, potassium chloride, vitamin C, Quinidine, Alendronate, etc.
_____ is a little-understood condition that is believed to be related to an allergic, immune reaction (usually to food)
Eosinophilic esophagitis
Eosinophilic esophagitis leads to _____ visible on EGD and Barium Swallow
concentric mucosal rings due to the esophageal lining becoming densely populated with eosinophils
T/F Radiation Therapy directed over the chest or neck region may lead
to inflammation of the esophagus that is usually self-limited
T
_____ occurs with GERD
Reflux esophagitis
Characteristic Signs and Symptoms of esophagitis
■ Retrosternal chest pain (heartburn) is common
■ Odynophagia or Epigastric abdominal pain/bloating
■ Dysphagia
■ Water brash (acidic regurgitation, “bitter taste in mouth”)
Patients with infectious esophagitis may also experience the following S&S:
■ Acute onset of dysphagia (difficulty) and/or odynophagia (pain)
■ Fever
■ Hematemesis (occasionally) or blood tinged sputum
■ Acute Anorexia and weight loss
Diagnosis of Esohpagitis
● Barium Swallow studies are ordered first.
● EGD is also usually ordered.
○ The two are complementary of each other.
GI-ESOPH-1
● Barium Swallow Esophagram can reveal
characteristic shapes and findings, including
strictures and concentric rings if Eosinophilic.
● EGD allows for biopsy or sampling of pathology.
● Labs: Test to see if they are Immunocompromised
What test is ordered first for esophagitis?
Barium Swallow
Esophagitis management includes:
○ To treat Reflux Esophagitis, treat the GERD (PPIs, H2 Blockers, etc.)
○ Treatment of Infectious Esophagitis is specific to the pathogen (Candidal- Clotrimazole Troche (immunocompetent) or PO/IV antifungals such as Fluconazole (immunocompromised or severe sx))
○ Eosinophilic Esophagitis - diet changes, PPIs, and glucocorticoids.
○ Med-induced Esophagitis- d/c offending med and PPI therapy.
Mallory-Weiss Syndrome
● Mallory-Weiss tears are Longitudinal lacerations in the mucosa near
the gastroesophageal junction or cardia of the stomach.
● It is characterized by upper GI bleeding.
○ Hematemesis (85%)
When do Mallory-Weiss lacerations occur?
Occur when there is a sudden increase in the intragastric pressure.
○ Frequently, this occurs with significant
retching, vomiting, or even coughing.
○ Can accompany the retching after binge
drinking ETOH.
____ account for 8-15% of Upper GI bleeds
Mallory-Weiss Tears
Diagnosis of Mallory-Weiss Tears
○ Upper Endoscopy ASAP
○ Barium Swallow study should be avoided
How can we treat Mallory-Weiss tears?
○ If necessary, emergency stabilization should occur.
■ Fluid resuscitation if tachycardic and hypotensive
■ STAT EGD for evaluation and cautery or balloon tamponade
○ Reverse anticoagulant if being taken
○ Twice-daily proton pump inhibitors (IV
then oral)
○ NPO for first couple days, then introduce
soft foods slowly
When is Mallory-Weiss Tears emergent?
If they are tachycardic and hypotensive, difficulty breathing, dizzy, LOC, etc.
Esophageal Varices
Dilated submucosal esophageal veins,
generally located at the distal esophagus
Left gastric→Portal System
Develops secondary to portal HTN and
seen in 50% of cirrhosis patients
Esophageal Varices
Up to 1/3 of patients with esohpageal varices may develop an _____
upper GI bleed
Characteristic Signs and Symptoms of esphageal varices
■ Usually painless, massive upper GI
bleeding
■ Nausea, with bright red blood or “coffee
ground” hematemesis likely
■ May present with hematochezia or
Melena
■ Dependent on the size of bleed, may
develop weakness, postural
hypotension, tachycardia, and shock.
T/F Varices are usually asymptomatic until they bleed
T