Exam 1: GI Flashcards
A hiatal hernia is diagnosed using
Barium Swallow
50-94% of patients with Gerd have a
Type 1 hiatal hernia
In order to diagnose GERD, you would do a
EGD (Esophagogstrododenoscopy)
A surgical option for the treatment of GERD that also repairs hiatal hernias at the same time is called
Nissen Fundoplication
Famotidine (H2 receptor antagonist) dose for GERD tx is
10 mg twice daily
Cimetidine (H2 receptor antagonist) dose for GERD tx is
200 mg twice daily
Treatment of Mild Gerd includes
- lifestyle changes
- H2 receptor antagonists “-tidine”
- Antacids
Treatment of severe Gerd includes
- Lifestyle changes
- Proton pump inhibitors (PPIs “-prazole”)
Omeprazole (PPI) dose for GERD tx is
10 mg daily
Lansoprazole (PPI) dose for GERD tx is
15 mg daily
Pantoprazole (PPI) dose for GERD tx is
20 mg daily
Most common esophageal disorder is
Achalasia
Diagnosis of achalasia includes
Barium swallow (displaying a “birds beak”)
treatment options for achalasia includes
- Pneumatic balloon dilation (~50% effective)
- Endoscopic botulinum toxin (wears off)
- Esophageal myotomy (Heller myotomy)
A false diverticulum / outpouching of mucosa is known as
Zenker’s diverticulum
Zenker’s diverticulum is diagnosed with
Fluoroscopy with barium
Treatment of a Zenker’s diverticulum that is < 1 cm is
conservative management
Treatment of a Zenker’s diverticulum that is > 1 cm is
Excision of the diverticulum
Esophageal spasm is diagnosed via
manometry
Mallory Weiss syndrome is diagnosed via
EGD (Esophagogstrododenoscopy); usually resolves spontaneously
Esophageal varices are diagnosed via
EGD (Esophagogstrododenoscopy)
The best way to diagnose an esophageal perforation is
chest CT most sensitive
How treat esophageal perforation
NG tube placement + antibiotics with emergent surgical repair
Diagnosis / Treatment of foreign bodies include
Endoscopy (EGD) both dx and therapeutic
what type of hernia is when the GE junction rises above the diaphragm but the fundus remains below the GE junction?
Type I (sliding)
Gerd and Barret’s esophagus are both associated with which type of esophageal cancer?
Adenocarcinoma
MC causes of gastritis include
H-pylori infection and chronic NSAID use
To define the anatomical location of gastritis you would do a
Endoscopy
To determine the etiology of gastritis you would do a
biopsy
If H.pylori gastritis was suspected you could dx it with
Urea C13 or C14 breath testing OR H.pylori stool antigen
Treatment of gastritis includes
PPI, H2 blockers, and +/- sucralfate
Dx of Peptic ulcer disease includes
EGD and Biopsy (can also test for H-pylori)
Tx of uncomplicated PUD is
PPI (like omeprazole) x 2 weeks with antibiotics for H. pylori
Tx of complicated PUD is
PPI x 4 weeks with antibiotics for H. pylori
Antibiotic tx for H.pylori is
Clarithromycin (500 mg) and amoxicillin (1g) BID regimen x 14 days
Esomeprazole dose for tx of PUD is
20-40 mg
Lansoprazole dose for tx of PUD is
30 mg
Omeprazole dose for tx of PUD is
20-40 mg
what type of gastric ulcer dz has the lowest risk of cancer?
Type II
what type of gastric ulcer dz is the most common?
Type I
what type of gastric ulcer dz is secondary to chronic NSAID use?
Type III
If a gastric ulcer fails to heal after adequate medical therapy then it is highly suggested of an
underlying malignancny
Indications for the surgical treatment of gastric ulcers is
bleeding, perforation, obstruction, intractability, and high suspicion of malignancy
All surgical procedures of gastric ulcers involves
excision of the ulcer (unlike duodenal ulcer)
Surgical options to repair gastrointestinal continuity after an ulcer includes one of three options
- Billroth I
- Billroth II
- Roux-en-Y
Operative intervention such as Truncal vagotomy with pyloroplasty or antrectomy is treatment for
Complicated PUD (manifestations of complicated gastric AND duodenal ulcers)
MC cause of UGI bleeds is
Bleeding PUD
Bleeding PUD is confirmed with
EGD / endoscopy
Perforated PUD is diagnosed via
Upright CXR that may show free intraperitoneal air (pneumoperitoneum)
Inability to tolerate oral intake / projectile vomiting shortly after eating; weight loss
Also a possible complication of Bilroth I is suggestive of
Gastric outlet obstruction
Intractable PUD is sx of persistent dz after adequate non-operative therapy which should alert to possible rare causes of ulcer dz such as
- Zollinger-Ellison syndrome
Zollinger-Ellison syndrome is
A gastrin secreting tumor where 2/3s are malignant
Zollinger-Ellison syndrome is dx via
EGD/Endoscopy plus an elevated serum gastrin
First line tx for Zollinger-Ellison syndrome is
PPIs
Crohn’s disease is dx via
Colonoscopy (plus EGD) OR plus MR/CT enterography
Dx test of choice for ulcerative colitis is
colonoscopy
Barium enema dx test for ulcerative colitis shows
Loss of haustrae and pseudopolyps
Ulcerative colitis has a HIGHER RISK for ____________ than Crohn’s
colon cancer
what is the most common benign liver lesion?
Cavernous Hemangioma
what type of benign liver lesions are most typically found in middle aged women 20-50 yrs?
Hepatic adenoma
A hepatic adenoma has a higher risk of hepatocellular cancer in
- larger lesions >5cm
- and in men
What type of benign hepatic lesions have a classic central, stellate star on CT w/ contrast or a spoke wheel pattern on arteriography?
Focal Nodular Hyperplasia (FNH)
Initial diagnostic imaging for hepatic cysts is
Ultrasound
A hepatic abscess is treated with
- aspiration / drain placement
- Abx for bacterial abscess
- *Flagyl for amebic abscess
Tx of spontaneous bacterial peritonitis of the liver (infection of ascitic fluid) is
Cefotaxime or Ceftriaxone
Triple therapy tx including Albumin/octreotide/midodrine are used to treat
Hepatorenal syndrome
Hepatic Hydrothorax is usually on what side?
right side
What condition is a pleural effusion with cirrhosis and NO evidence of underlying cardio/pulm disease?
Hepatic hydrothorax
Portopulmonary HTN is dx via
Right heart catheterization
Wilson’s disease is a disease of
Copper metabolism
Kayser-Fleischer rings in the eyes are associated with what disease?
Wilson’s disease
If Wilson’s disease is caught early, it can be treated with
D- penicillamine
Hemochromatosis is a disease of
excessive iron deposition
Hemochromatosis treatment includes
Serial phlebotomy
What is the largest risk factor (90%) for Hepatocellular carcinoma?
Cirrhosis
In patients with liver cirrhosis, all liver lesions are ___________ until proven otherwise
Hepatocellular carcinoma
A type of cholangiocarcinoma (gallbladder cancer) that occurs at the right and left hepatic ducts is known as a
Klatskin tumor
90% of pancreatic neoplasms are
ductal adenocarcinoma
The biggest risk factor for pancreatic cancer is
Cigarette smoking!
Alpha feta-protein can be monitored in what type of cancer
Hepatocellular Carcinoma
CA-19-9 can be monitored in what type of cancer?
Pancreatic cancer
what is Whipple’s triad consist of
- fasting hypoglycemia
- with associated sx
- And immediate relief of sx after the administration of IV glucose
What is Whipple’s triad suggestive of?
An Insulinoma (tumor in the pancreas)
In a patient with PUD and diarrhea that has NOT responded to tx you may suspect
Zollinger-Ellison syndrome
Watery diarrhea and hypokalemia (esp. in kids < 10 yrs) is likely a
VIPoma (aka pancreatic cholera)
VIPoma is dx via
- fasting plasma VIP levels
- measure diarrhea volume
Tx of VIPoma is
- Octreotide IM
- Surgical resection or
- Chemo (refractory cases)
Most common type of stomach cancer that originates at the glandular tissue is
Gastric adenocarcinoma
What is the #1 risk factor of stomach cancer?
H.pylori infection!!!
an early symptom of stomach cancer is
dyspepsia
first line dx of stomach cancer is
EGD with biopsy (then other stuff)
Most common benign tumor of the small bowel is
Leiomyomas / Benign GIST
2nd most common benign tumor of the small bowel that causes bleeding and obstruction is
hemangiomas
what benign tumor of the small bowel has the potential to become adenocarcinoma?
Adenomas (should be resected if found)
50% of all small intestinal malignancies is
adenocarcinoma
Most common location of intestinal adenocarcinoma is in the
duodenum
Small bowel adenocarcinoma is treated with
wide resection of involved bowel
Small bowel adenocarcinoma tx if +lymph nodes
wide resection plus adjunctive chemotherapy
Carcinoid tumor is dx with
Urinary 5-HIAA
episodic cutaneous flushing, bronchospasm, wheezing, and cramping/diarrhea are all signs of
Carcinoid syndrome
Carcinoid tumor is more likely to metastasize based on
The size of the tumor:
2% if <1cm
50% if 1-2cm
90% if >2 cm
leiomyosarcoma (aka malignant GIST) metastasize to the
lung and liver
colon cancer is most commonly caused by
Adenocarcinoma
High risk factors for colon cancer include
-Familial adenomatous polyposis
- UC or Crohn’s over 10 yrs
Screening a high pts for colon cancer is
fist colonoscopy before the age of 45 (usually 40) or if symptomatic; colonoscopy every 3-5 yrs
typical screening for colon cancer
- Colonoscopy at age 45-75
- Polys = remove and repeat ever 5yrs
- no polys = everyday 10 yrs
If a pt elects to do a flexible sigmoidoscopy how often is one done?
- every 5 yrs
- or every 10 with fecal occult blood test
what staging system is used to stage colon cancer?
Duke’s classification
Duke’s classification
A = confined to the mucosa (>90% survival)
B1 = invades the muscularis propria (75%)
B2 = extends through the muscularis (60%)
C = same level as duke’s B but with positive notes (20-50%)
D = metastatic (<5%)
what is a significant risk factor of anal cancer?
HPV
sx of anal cancer include
rectal bleeding, discomfort, a mass, and pruritus (can be confused with hemorrhoids)
most anal cancers in the US are
squamous cell carcinomas
anal tumors are dx with
Colonoscopy with biopsy
what does follow up of anal cancer involve?
- Every three months (for first 2 yrs): Hx/PE, and CEA
- Every 4-6 months for (2-5 yrs): Hx/PE, CEA
- Colonoscopy every 1 yr after dx. If abnormal repeat the next year otherwise repeat in 2-3 yrs
Biliary Dyskinesia is dx with
HIDA scan
Tx of choledocholithiasis is
ERCP with removal and sphincterotomy
In a hemodynamically stable patient with splenic trauma, the treatment of choice is…
Non-operative management
In a unstable patient with splenic trauma, the treatment is
Laparotomy
Best initial test if suspecting acute pancreatitis
amylase and lipase
In cases of acute pancreatitis which of the following is associated with the worst prognosis?
A. Elevated amylase
B. Elevated lipase
C. Intensity of the pain
D. Low calcium
E. Rising C-reactive protein
D. Low calcium
Dx test of choice to tx acute appendicitis is
CT with contrast
Carcinoid lesions of the appendix less than 2cm and NOT at the base of appendix is treated with
Appendectomy
Carcinoid lesions of the appendix GREATER than 2cm OR those at the base are treated with
Right hemicolectomy
A postitive IgA anti-tissue transglutaminase antibody (tTG-IgA) indicates what disease?
Celiac Disease
Initial diagnostic test of choice to dx chronic mesenteric ischemia is
CT with contrast
Gold standard dx and tx of chronic mesenteric ischemia is
angiography