GI PEARLS Flashcards
mechanical or functional abnormality of the LES
Reflux esophagitis
Medication induced esophagitis:
think NSAIDS or bisphosphonates
Pt with Asthma symptoms and GERD not responsive to antacids. Allergic, eosinophilic infiltration of the esophageal
Eosinophilic
Fungal Esophagitis:
Candida:
Tx: fluconazole
Viral Esophagitis:
HSV: shallow ulcers noted on EGD, treat with acyclovir
CMV: deep ulcers on EGD, treat with ganciclovir
Decreased peristalsis, increased sphincter tone
Presentation: slowly progressive dysphagia, episodic regurgitation
Barium swallow: “parrot-beak” - dilated esophagus tapered to distal obstruction
Definitive diagnosis: esophageal manometry
Achalasia
Corkscrew appearance on barium swallow
Diffuse Esophageal Spasm
Dysphagia to liquids and solids caused by injury at brainstem or cranial nerves
Neurogenic dysphagia
Outpouching of posterior hypopharynx
Presentation: Men over 60. Regurgitant symptoms several hours after eating, halitosis
Treatment: Excision, myotomy of cricopharyngeus muscle and upper 3 cm of posterior esophageal wall
Zenker diverticulum
Dysphagia to both solids and liquids
Scleroderma esophagus
Dysphagia to solids but not liquids
Esophageal stenosis
Presentation: History of alcohol intake and an episode of vomiting with blood
Caused by forceful vomiting. Associated with alcohol use, upper endoscopy showing superficial longitudinal mucosal erosions
Treatment: Supportive. May cauterize or inject Epinephrine if needed
Mallory Weiss Esophageal mucosal tear
Progressive dysphagia to solid foods along with weight loss, reflux and hematemesis
Esophageal Neoplasms
most common worldwide espogapheal neoplasm?
squamous cell
Most common US esophageal neoplasm?
adenocarcinoma
Complication of Barrett’s esophagus (screen barrett’s patients every 3-5 years with endoscopy), affects distal (lower) 1/3rd of esophagus
Adenocarcinoma
Associated with smoking and alcohol use
Affects proximal (upper) 2/3rds of esophagus
Progressive dysphagia, weight loss, hoarseness
Diagnostic studies: Endoscopy + biopsy
Treatment: Resection
-Esophageal neoplasm
squamous cell
Solid food dysphagia in a patient with a history of GERD, Plummer-Vinson, Dx with barium swallow, TX with endoscopic dilation
Esophageal strictures
Plummer-Vinson (3 things)
esophageal webs + dysphagia + iron deficiency anemia
Often asymptomatic until hematemesis
Etiology: Portal hypertension (from cirrhosis), Budd-Chiari syndrome (from occlusion of hepatic veins)
Treatment: Therapeutic endoscopy – endoscopic banding and IV octreotide, prevent with nonselective beta blockers
Esophageal Varices
Gold Standard GERD Dx?
PH Probe
Most common gastritis cause?
H. Pylori
3 gastritis causes?
- Autoimmune (pernicious anemia)
Location: Body of fundus.
2. H. pylori infection (most common)
Location: Antrum and body
Studies: Urea breath test or fecal antigen.
Treatment: PPI (Ie. Omeprazole) + clarithromycin + amoxicillin +/- metronidazole
3. NSAIDs and alcohol
Stomach Neoplasms
Adenocarcinoma, Virchow’s node (Supraclavicular), Sister Mary Joseph’s node (Umbilical)
Most common PUD cause?
H. Pylori
PUD causes?
Etiology: H. pylori (most common), NSAID use, Zollinger-Ellison syndrome (refractory PUD) - gastrin secreting tumor
PUD symptoms, pain improves with food:
Duodenal Ulcer
PUD symptoms pain worsens with food:
Gastric ulcer
PUD gold standard diagnostic test?
Endoscopy with biopsy
PUD Tx:
H. pylori infection: Triple therapy PPI (Ie. Omeprazole) + clarithromycin + amoxicillin +/- metronidazole
NSAIDs use: discontinue use
Zollinger-Ellison syndrome: PPI and resect tumor
Projectile vomiting occurs shortly after feeding in an infant < 3 mo old, palpable “olive-like” mass
Barium swallow: string sign
Treatment: surgical correction
Pyloric stenosis
Presentation:
5 Fs: Female, Fat, Forty, Fertile, Fair
(+) Murphy’s sign (RUQ pain with GB palpation on inspiration)
RUQ pain after high fat meal
Acute and Chronic Cholecystitis
Acute and chronic cholecystitis Dx:
Ultrasound is the preferred initial imaging
Gallbladder wall >3 mm, pericholecystic fluid, gallstones
HIDA is the best test
porcelain gallbladder = chronic cholecystitis
Treatment: Cholecystectomy
Presentation:
Charcot’s triad: RUQ tenderness, jaundice, fever
Reynold’s pentad: Charcot’s triad + altered mental status and hypotension
Cholangitis
Cholangitis Organisms:
E. coli, Enterococcus, Klebsiella, Enterobacter
Cholangitis Dx studies:
Initial imaging: Ultrasound
Best: ERCP
Cholangitis Tx:
Aggressive care and emergent removal of stones, cipro + metronidazole
Antibiotics, fluids and analgesia.
ERCP to remove stones, insert stent, repair sphincter
Cholecystectomy (performed post-acute)
Primary sclerosing cholangitis
Jaundice and pruritus
Associated with IBD, cholangiocarcinoma, pancreatic cancer, colorectal cancer
Precursor to cholecystitis, cholesterol stones account for > 85% of gallstones in the Western world
Cholelithiasis