Gastrointestinal Flashcards
Complications of GERD
- Esophagitis
- Stricture
- Barrett’s esophagus
- Esophageal adenocarcinoma
Esophageal squamous epithelium replaced by precancerous metaplastic columnar cells from the cardiac of the stomach
Barrett’s Esophagus
Atypical symptoms of GERD
Hoarseness Aspiration pneumonia "Asthma" Noncardiac chest pain Weight loss
Alarm symptoms of GERD
- Dysphagia
- Odynophagia
- Weight loss
- Bleeding (suspect malignancy)
Diagnosis of GERD
- Clinical diagnosis
- Endoscopy (used first)
- Esophageal manometry
- 24 hours ambulatory pH monitoring (gold standard)
Management of GERD
- Lifestyle modifications
- H2 blockers, PPIs, antacids
- Nissen fundoplication if refractory
Yellowing of the skin, nail beds, and sclera by tissue bilirubin deposition as a consequence of hyperbilirubinemia. Not a disease but a sign of a disease
Jaundice
Jaundice occurs when bilirubin is > _____
2.5 mg/dL
DDX for hematemesis
Esophageal varices Mallory-Weiss tear Esophageal neoplasms Gastritis Peptic ulcer disease Gastric carcinoma Caustic (corrosive) esophagitis Boerhaave syndrome
DDX for melena
Esophageal varices Gastritis Mallory-Weiss tear Peptic ulcer disease Gastric carcinoma
DDX for BRBPR
Hemorrhoids
Anal fissures
Intussusception
Colon CA
Most common cause of esophagitis
GERD
Risk factors for esophagitis
Pregnancy Smoking obesity EtOH use Chocolate Spicy foods Medications
Signs/Symptoms of esophagitis
- Odynophagia
- Dysphagia
- Retrosternal chest pain
Diagnosis of esophagitis
Endoscopy
Double-contrast esophagram
Management of esophagitis
Treat underlying cause
Most common causes of infectious esophagitis
Candida
HSV - small, deep ulcers
CMV - large superficial shallow ulcers
Allergic, inflammatory infiltration of the esophageal epithelium
Eosinophilic esophagitis
Eosinophilic esophagitis is most commonly associated with:
Atopic disease - food/non food allergies, asthma, eczema
Endoscopy of eosinophilic esophagitis will show:
Multiple corrugated rings on esophagus, +/- white exudates
How might esophinophilic esophagitis present in children?
Difficulty feeding or reflux
Most commonly due to prolonged pill contact with the esophagus, prolonged supination after pill ingestion
Pill-induced esophagitis
Pill-induced esophagitis is most commonly seen with:
- NSAIDs
- Bisphosphonates (-dronate)
- Potassium chloride
- Iron pills
- Vitamin C
- Beta blockers
- Calcium channel blockers
Management of pill-induced esophagitis
Take pills with at least 4 ounces of water, avoid recumbency for at least 30-60 minutes after pill ingestion
Most common cause of caustic (corrosive) esophagitis
Ingestion of corrosive substances - alkali (drain cleaner, lye, bleach) or acids
Management of caustic (corrosive) esophagitis
Supportive
Pain meds
IV fluids
UGI bleeding from longitudinal mucosal lacerations at the gastroesophageal junction or the gastric cardia
Mallory-Weiss tear
Management of Mallory-Weiss tear
Supportive - most cases stop bleeding without intervention. Acid suppression promotes healing
Management of Mallory-
Weiss tear if severe
Epinephrine injection
Sclerosing agent
Band ligation
Hemoclipping or balloon tamponade
What two causes predispose a pt to peptic ulcers?
H pylori
NSAIDs
Symptoms of peptic ulcers
Duodenal ulcers: improve with meals
Gastric ulcers: worsen with meals
Diagnostic modality for peptic ulcers
Endoscopy
Upper GI series if unwilling to do endoscopy
Treatmet tfor peptic ulcers
Treat underlying cause and start PPI
H pylori testing
Endoscopy with biopsy gold standard + rapid urease test
+ urea breath test
+ h. pylori stool antigen
+ serologic antibodies
Treatment for H pylori
Two weeks of:
BID PPI
BID Clarithromycin
BID Amoxicillin (or metronidazole if PCN allergic)
Second line treatment for H pylori
BID PPI
QID Bismuth
BID Metronidazole
BID Tetracycline
Most common bacterial etiologies of acute cholecystitis
E. coli
Klebsiella
Diagnosis of cholecystitis
- Ultrasound
- CT scan
- Labs: leukocytosis w/ left shift, high bilirubin, high LFTs
- HIDA scan: gold standard
Management of cholecystitis
- NPO, IV fluids, abx
- Cholecystectomy
- Pain control with NSAIDs or narcotics
Bacterial infection of the biliary tract from obstruction
Cholangitis
Most common causes of cholangitis
Choledocholithiasis (MC)
Neoplasm
Stricture
Most common organisms in cholangitis
E. coli (MC)
Klebsiella
Charcot’s Triad
Seen in cholangitis
- RUQ pain
- Fever
- Jaundice
Reynold’s Pentad
Seen in cholangitis
1,2,3 Charcot’s triad
4. Shock/Sepsis
5. AMS
Diagnostic modalities for cholangitis
- Labs: leukocytosis, high bili, high ALT, AST
- US, CT scan
- cholangiography - gold standard via ERCP
Management of cholangitis
ABX: 1. Ampicillin/sulbactam or Piperacillin/tazobactam OR 2. Ceftriaxone + metronidazole OR 3. fluoroquinolone + metronidazole
stone extraction via ERCP
Inflammation of the liver caused by 5 different viruses
Viral hepatitis
Hepatitis __, __, and __ are transmitted through bodily fluids, while __ and __ are transmitted through the fecal-oral route
BCD
AE
Hepatitis __ requires co-infection with hepatitis __
D
B
Currently, the CDC suggests that all pts born between _____ and _____ have a one-time Hepatitis C screening
1945-1965
Signs/symptoms of viral hepatitis
- Fever, fatigue
- N/V
- abd pain
- dark discolored urine (secondary to conjugated hyperbilirubinemia)
- jaundice
Hepatitis __ and __ will usually be asymptomatic
B and C
Diagnosis of Hepatitis
- Elevated LFTs
- Elevated PT (if developed cirrhosis)
- Antibody testing (IgM and IgG)
In hepatitis testing, ___ is for acute infection, and ___ is for chronic infection
IgM
IgG
This does not apply to Hep B and C
Test to check for active Hepatitis C infection
Hep C virus RNA
If there is positive Hep C antibody, but negative RNA
Pt has cleared Hep C infection
If there is positive Hep C antibody and positive Hep C RNA
Pt has active Hep C infection
Hepatitis B screening:
- HbsAg (-)
- anti-HBc (-)
- anti-HBs (-)
Hepatitis B susceptible
Hepatitis B screening:
- HBsAg (-)
- anti-HBc (-)
- anti-HBs (+)
Immune due to natural infection
Hepatitis B Screening
HBsAg negative
anti-HBc negative
anti-HBs positive
Immune due to vaccination
Hepatitis B screening: HbsAg positive anti-HBc positive IgM anti-HBc positive anti-HBs negative
Acutely infected
Hepatitis B screening: HbsAg positive anti-HBc positive IgM anti-HBc negative anti-HBs negative
Chronically infected
Treatment for Hepatitis A and E
Self-resolve, are not associated with chronic liver disease
Treatment for acute hepatitis B
Supportive Care
Treatment for chronic Hepatitis B or positive e-antigen
Interferon or Nucleoside analogs (entecavir, tenofovir, lamivudine, adefovir, telvibudine)
Treatment for hepatitis pts with cirrhosis
Require transplant
Treatment for hepatitis C
Ledipasvir-sofosbuvir OR
Sofosbuvir and velpatasvir
Most common etiologies for acute pancreatitis
- Gallstones (MC)
- EtOH (MC)
- Malignancy
- Scorpion bites
- Mumps in children
Intracellular activation of pancreatic enzymes that causes autodigestion of the pancreas
Acute pancreatitis
Pain exacerbated if supine, eating or walking. Relieved if leaning forward or sitting.
Acute pancreatitis
Signs/symptoms of acute pancreatitis
- Epigastric pain (radiates to back)
- N/V and fever
- Epigastric tenderness and tachycardia
Cullen’s sign and grey turner sign
Acute pancreatitis if necrotizing/hemorrhagic
Cullen’s periumbilical ecchymosis
Grey turner: flank ecchymosis
Diagnostic studies for pancreatitis
- Leukocytosis, lipase, amylase, high glucose
- CT: diagnostic test of choice
- Ultrasound
- XR - colon cutoff sign
Colon cutoff sign
Abrupt collapse of the colon near the pancreas
Acute pancreatitis