Surgery Flashcards
How to dx presence of reflux
PH monitoring. Correlation with sxs. In setting of long hx, do endoscopy and bx to look for Barrett esophagus
When to do surgery for GERD
Long standing sx dz that cannot be controlled by medicine. Necessary in anyone with complications like Ulceration and stenosis-> resection. Severe dysplastic-> lap nissen
Pt with crushing pain with swallowing in uncoordinated massive contraction. Solids swallowed with less difficulty than liquids
Motility problems
Dyspjagia worse with liquids. Dx? Tx?
Achalasia. Dx: manometry. Tx: balloon dilatation
Esophageal SCC vs adenocarcinoma
SCC- men with hx of smoking and drinking, esp blacks
Adeno- long standing GERD
But need endoscopy with bx and barium swallow before to prevent inadvertent perf
Gastric andenocarcinoma versus gastric lymphoma tx
Surgery as tx for adenocarcinoma. Tx for lymphoma based on chemo or radiotherapy (do surgery if you fear perforation as tumor melts away)
Maltoma? Tx?
Type of gastric lymphoma. Can be reversed by getting rid of H. Pylori
Presentation for stomach cancer
Adenocarcinoma and lymphoma both have anorexia, wt loss, vague epigastric distress
Sxs of carcinoid syndrome
Small bowel carcinoid with liver mets. Diarrhea, face flushing, wheezing, right sided heart valvular damage
DX of carcinoid syndrome
24 hour urinary collection for 5-hydroxyindoloacetic acid. Whenever syndromes have episodic attacks or spells, offending agent will be in high concentration in blood only at time of attack
Colonic polyps In descending order of prob for malignant degeneration
Familial polyposis, familial multiple inflammatory polyps, villous adenomyosis, adenomyosis polyp: non malignant polyps: juvenile, peutz jeugers, isolated inflammatory, hyperplastic
Causes of c diff
Celhalosporins, clindamycin
Anal fissure tx
Usually in young women. Tx: relax tight sphincter. Stool softener, topical NO, local injection of botulinum, forceful dilatation, lateral internal sphincterotomy. CCB for 6 weeks have an 80-90% success rate
SCC of anus epidemiology and tx
HIV+ men. Tx with NIGRO protocol is 90% effective so usually don’t need surgery
MC cause GI bored
3/4 originate in upper GI tract before lig of Treitz. As age increases, lower GI bleed becomes more common
First steps if BRBPR.
NG tube- aspirate gastric contents. If no blood and fluid is NOT GREEN AND BILE TINGED , do upper GI endoscopy to Check duodenum. Then anoscopy for hemorrhoids.
BRBPR steps after you’ve rules out upper GI source and hemorrhoids.
If >2ml/min: angiogram. If
Blood per rectum in kids MC cause and work up
Meckels diverticulitis. Start with technetium scan looking for ectopic gastric mucosa
Massive upper GI bleeding in stressed multiple trauma or complicated post op pt.
Stress ulcers. Endoscopy to confirm. Tx: angiographic embolization. Try to maintain gastric pH above 4 to avoid.
Severe abdominal pain with blood in lumen of the gut
Ischemic processes
Child with nephrosis and ascites or adult with mild abdomen and equivocal physical findings.
Primary peritonitis. Cultures of ascites fluid will usually show one organism. Tx with antibiotics not surgery.
Alcoholic with upper Acute abdomen. DX? Tx?
Acute pancreatitis. DX: serum or urinary amylase or lipase (12-48 hrs- serum, 3rd-6th day- urinary). CT if not clear. Tx: NPO, NG, IVF
Fat female forty
Biliary tract dz
Sudden onset colicky flank pain radiating to inner thigh and scrotum/labia. Urinary freq and urgency. Microhematuria.
Urethral stones. CT for dx.
Acute abdominal pain in LLQ. Dx? Tx?
Acute diverticulitis. Do CT. Start tx with NPO, IVF, antibx. If that doesn’t help, radiologically guided percutaneous drainage of abscess OR emergency surg.
Surgery for diverticulitis indications?
If medical therapy doesn’t work. If 2 or more attacks.
How to dx sigmoid volvulus
X-rays show air fluid levels in small bowel, very distended bowel, huge air filled loop in RUQ that tapers down to LLQ in shape of parrots beak.
Tx for sigmoid volvulus
Proctosignoidoscopic exam with the old rigid instrument. Recital tube is left in. If recurrent you need elective sigmoid resection
Pt with a fib or recent MI gets an acute abdomen
Mesenteric ischemia- clot lodges in superior mesenteric artery.
Pt with hx colon cancer who gets rising CEA
Mets to liver. Met dz 20x more common than primary liver dz
Pt on birth control win hepatic mass
Hepatic adenoma. Tendency to rupture and bleed in abdomen. Dx: CT. Tx: emergency surgery required
Person with biliary tract dz (ascending cholangitis) gets fever, leukocytosis, and a tender liver)
Dx: sonogram or CT scan for pyogenic liver abscess. Tx: percutaneous drainage
Old pt with acute abdominal pain and blood in bowel lumen. Acidosis and sepsis.
Mesenteric ischemia- old people dont always mount impressive acute abdomen
Pt with cirrhosis and vague RUQ discomfort and wt loss. Ne t steps
Primary hepatoma. Get AFP. CT will show location and extent. Resection if technically possible.
Mexican man with liver mass
Amebic abscess of the liver. Dx: serology but takes weeks so start empiric tx. Tx with MDZ(as opposed to drainage for pyogenic liver abscess).
jaundice with bili 6 all unconjugated with no elevation of direct bili. no bile in urine
hemolytic jaundice. do workup to see what is chewing up RBC
jaundice with elevated direct and indirect bill. elevated transaminases. modest elevation in alk phos.
hepatocellular jaundice. ex: hepatitis.
jaundice with elevated direct/indirect bill, modest transaminitis, very high alk phos.
obstructive jaundice. dx: sono. could see stones in gallbladder. could see malignancy.
malignant obstruction jaundice on sonogram
courvoisier-terrier sign:large, thin walled, distended gallbladder
obese fecund woman in 40s with high alk phos, dilated ducts on soon, and non dilated gallbladder full of stones. dx? tx?
obstructive jaundice. dx: ERCP to get dx do sphincterotomy, remove common duct stone
what happens after you see courvoisier-terrier sign on sono in jaundice
do CT scan. if you see pancreatic cancer, do percutaneous bx. if CT negative, do ERCP (ampullarf cancers and cancers of the common duct can produce obstruction when very small)
causes of malignant obstructive jaundice. which have the best prognosis?
adenocarcinoma of the head of the pancreas, adenocarcinoma of the ampulla of water, or cholangiocarcnoma in the CBD itself. ampullarf cancer and cancer of the lower end of the CBD have better prognosis- 40% cure
malignant obstructive jaundice plus anemia and positive blood in stools
think ampullary cancer (ampulla of vater) can bleed into lumen like any other obstructive malignancy but it can also obstruct bile flow by virtue of its location. first step- endoscopy
how to abort biliary colic
anticholinergics
biliary pain with modest fever, leukocytosis, RUQ peritonitis pain. next steps?
acute cholecystitis. NG suction, NPO, IVF, and antibx to slow down sxs and allow elective cholecystectomy. men and diabetics do not respond.
acute cholecystitis with prohibited surgical risk next steps
emergency percutaneous transhepatic cholecystostomy (drain gallbladder with drain)
pt with high fever, chills, high WBC, some hyperbili, HIGH ALK PHOS. dx? tx?
acute ascending cholangitis. give IV antibx and emergency decompression of CBD by ERCP (or percutaneous through liver). eventual cholecystectomy
pt with mild and transitory sxs of cholangitis AND elevated amylase/lipase
biliary pancreatitis. stones impacted distally in ampulla-> block pancreas and biliary ducts.
tx for biliary pancreatitis
conservative tx (NPO, NG, suction, IVF) and then elective chole. if not, ERCP and sphincterotomy to dislodge impacted stone
acute hemorrhagic pancreatitis sxs
like edematous pancreatitis but with lower hematocrit that lowers even more th next morning. also then the calcium is low, BUN, goes up, metabolic acidosis, and low arterial PO2
tx for acute hemorrhagic pancreatitis
ICU. drain pancreatic abscesses. daily CT scans. IV imipenem or meropenem.
ranson criteria
criteria for acute hemorrhagic pancreatitis. elevated WBC, elevated blood glucose, low serum calcium