GI Flashcards
Squamous cell cancer of esophagus
Smoking, etOH, hot liquids, pickled foods, Nitrates, deficiency of B1, carotene, selenium
Adenocarcinoma of esophagus
Constant GERD, Barrett’s, weight loss, high calorie/fat, hiatal hernia –> GERD
Drugs that cause esophagitis
K, iron, tetracyclines, NSAIDS, alendronate, quinidine
Zenker diverticulum pathogenesis
Motor dysfxn - sphincter contraction/dysmotility –> excision & cricopharyngeal myotomy
Progressive dysphagia, CP, regurg, No LES relaxation
Achalasia - myenteric plexus, T. cruzi
Progressive dysphagia, nighttime cough, regurgitation, weight loss, heart burn
Achalasia –> Barium +/- manometry –> Endoscopy w/ balloon dilation or myomectomy
Crushing pain w/ swallowing, dysphagia for liquids, regurg
Achalasia –> Barium +/- manometry –> Endoscopy w/ balloon dilation or myomectomy
Dysphagia for solids –> softs –> liquids, weight loss, smoking or longstanding GERD
SCC (smoking) or Adenocarcinoma (GERD) –> Barium –> endo + bx –> CT for operability
Dysphagia of both solids and liquids, chronic GERD 1st step
Barium esophogram –> endocsopy
Prolonged forceful vomiting + bright red blood
Mallory-weiss tear –> endocscopy –> laser
Prolonged forceful vomiting –> sternal pain, fever, leukocytosis
Boerhave syndrome –> Gastrografin swallow –> repair
1 cause of esophageal perforation
Instrument –> emphysema in neck –> contrast esophagram
CP, epigastric pain, burning + CXR widened mediastinum, mediastinal air
Esophageal rupture = instrument, KCl, vomiting, Barrett, candida/HIV, caustic ingestion
Food stuck in throat/muscle that initiates swallowing
Cricopharyngeal
Severe odynophagia, CD4 <50, round ulcers in esophagus cause
HSV - CMV (deep linear ulcers)
Drug causes of esophagitis
KCl, tetracyclines, bisphosphonates, NSAIDs
Intermittent CP, dysphagia, simultaneous high amplitude contractions
Dissuse esophageal spasm
Fibrosis, atrophy, no distal esophagus movement, loss of LES tone
Scleroderma
Stuck chicken bone, unable to open mouth fully, limited nexk extension, fever
Retropharyngeal abscess –> CT + Abx to avoid –> mediastinum
Tx for variceal bleeding
2 Ivs or central line –> octreotide or somatostatin
Tx for non-bleeding varicees
BB (propanolol) –> sclerotherapy –> TIPS if refractory to all other tx
1 esophageal atresia
Proximal pouch, distal TE fistula
Overweight, burning pain worse laying down, bending over, tight clothes, antacids help, long standing
GERD –> PPI –> endoscopy + Bx
Nocturnal wheezing, morning hoarsness, inflamed pharynx next step?
GERD –> PPI
GERD <50, no alarm sx, or cancer risk next step
H.pylori test or PPI 1x daily –> switch PPI or 2x daily —> endoscopy
GERD >50, smoker, melena, hematemesis, weight loss next step
Endoscopy
GERD refractory to meds + ulcers, stenosis, dysplastic changes
Nissen fundoplication –> resection w/ severe dysplasia
When is early endoscopy considered for dyspepsia?
New-onset >55, weight loss, progressive dysphagia, bleeding, Hx CA, odynophagia
H. pylori dx
Stool antigen or IgG serology if on PPIs but gold standard = endocsopy + Bx
Dyspepsia <55 w/ no alarm sx tx
Test-and treat = PPI, H. pylori Ag –> Omeprazole + bismuth + metronidazole + tetracycline
Colonoscopy indication w/ PUD
> 50 w/ blood in stool or anemia even w/ found ulcer to R/O colon CA
Old + anorexia + weight loss + epigastric distress, early satiety
Gastric adenocarcinoma –> endoscopy –> CT –> surgery
Gastric adenocarcinoma dx, next step?
CT = extent/mets of CA
etOH + aspirin, hematemesis cause?
Acute erosive gastritis
Early satiety, post-prandial pain, vomiting, abdominal succussion splash, acid or beozar ingestion
Pyloric stricture
S/P gastrectomy, abd cramps, weakness, lightheaded, post-prandial pain
Dumping (post-gastrectomy syndrome) –> diet modification –> octreotide
Upper abd pain better or worse w/ food, N, early satiety, NSAIDs for chronic arthritis, dark stool
Peptic ulcer
Ulcer work-up
CBC, D/C NSAIDs, upper endoscopy, H. pylori, PPI
Most common ulcer type
Duodenal
Ulcer type w/ NSAID use, usually pain immediately after eating
Gastric
Awoken w/ severe abd pain, pain w/ eating, drinking heavily, FREE AIR under R hemidiaphragm Dx?
Perforated peptic ulcer (viscous) –> urgent laparotomy
Vomiting blood or blood in NG tube
Upper GI bleed –> endoscopy
Black tarry stool (melena) work-up
Upper GI bleed –> endoscopy
BRBPR
Anywhere –> NG tube+ = upper; NG white w/o blood = endoscopy; NG tube only bile = lower
BRBPR from lower GI source work-up
Hemorrhoids; >2ml/min/1unit/4hrs –> angiogram & embolization; <0.5ml/min or stopped = colonoscopy
Blood per rectum work-up not actively bleeding
Young = upper; Old = both
Blood per rectum in kid
Meckels
Massive upper GI bleed post-op, multiple trauma, stress
Ulcer –> endoscopy, embolization
BRBPR, NG tube (-) blood, (-) colonoscopy but continues to bleed next step
Labeled erythrocyte scintography –> angio or repeat colonoscopy
Abd pain >3d/mo, change in frequency & form, relief w/ BM, mucous, bloating, incomplete emytping
IBS = NORMAL mucosa
Diarrhea and bloody stools, Crypt abscess, abd pain, weight loss, mucosal inflammation
UC - continuous, “lead-pipe,” megacolon, colorectal CA
Surgical indications in UC
> 20yrs (–> malignant), malnutrition, many hospitalizations, toxic megacolon
Frequency of colonoscopy with UC
After 8 years of UC —> Every year - high colorectal CA rates
Non-caesating granulomas, cobblestone, diarrhea, “string sign,” fistulas
Crohns
Chronic diarrhea, weight loss, pain, auto-immune (B-27), reactive thrombocytosis picture
Crohn’s Disease
Anal fissure, ulcer fails to heal or worse w/ surgery
Crohns Disease –> NO surgery but Remicade
Abd pain, aphthous ulcers showing granulomatous inflammation assoc?
Crohn’s Disease
Extraintestinal complications of UC - don’t require surveillance
PSC, uveitis, erythema nodosum, spondyloarthropathy
Diarrhea, weight loss, anemia, high ESR, + SOBT, neutrophilic cryptitis
IBD
Weight loss, bloating, flatus w/ certain foods
Celiac = intestinal villous atrophy
Anti-tissue transglutaminase & endomysial abs
Celiac
Chronic steatorrhea, celiac –> ? Disruption in Ca levels
Dec VitD –> dec Ca –> Inc PTH & dec Phos
Chronic steatorrhea, DEC D-XYLOSE IN URINE
Celiac (proximal SI malabs)
Mucosal subepithelial collagen deposition
Microscopic/collagenous colitis
Blunting of colonic villi, lymphocytes, plasma cells, eosinophils, - O&P, travel
Tropical sprue
Hx diarrhea, non-deforming migratory arthritis, fever, PAS + MO in small intestine, villous atrophy
Whipple’s
Alopecia, dec taste, bullous lesions around mouth/face, TPN
Zinc deficiency (jejunum)
Early satiety, intractable vomiting, hypoK, hypoCl, alkalosis, peptic ulcers
Gastric outlet obstruction –> NG stomach decompression, NaCl, KCl
Periodic, shifting abd pain, vomiting, fever, leukocytosis, obstipation, tenderness, distension
SBO –> NPO, NG, IVFs –> surgery 1 day total to 3 days partial
Colicky abd pain, vomiting, abd distention, obstipation, high-pitched BS, XR distended bowel
SBO –> NPO, NG, IVFs –> surgery 1 day total to 3 days partial
Colicky abd pain, vomiting, abd distention, obstipation + fever, leukocytosis, peritonitis
Strangulation –> emergency surgery
Colicky abd pain, vomiting, abd distention, obstipation + irreducible hernia
Incarcerated hernia
DM, early satiety, vomiting, bloating, hypoglycemia after meals/insulin
Gastroparesis –> metaclopramide (EPS), small meals, Erythromycin, cisapride
Tx cancer related anorexia
Progsterone analogs - megestrol acetate, medroxyprogesterone or mertazipine (TCA)
Diarrhea, flushing of face, wheezing, JVD
Carcinoid syndrome –> high urine 5-HIAA
Right sided colon mass presentation
Anemia
Work-up for colon mass
Colonoscopy + Bx –> CT –> hemicolectomy
Left sided colon mass presentation
Obstruction, pencil stools, bloody BM
Probability of malignancy in polyps
Familial polyposis > familial inflammatory > villous adenoma > adenomatous
Emergency colectomy w/ C. diff
Tx unresponsive, WBC >50K, lactate >5
Post-op hypotension, CAD, “thumb printing,” bloody diarrhea - bleed location?
Splenic flexure - 2nd = rectosigmoid
Worsening post-prandial pain –> food avoidance
Occlusion/atherosclerosis of mesenteric arteries
LLQ pain, N/V, constipation, wall thickening, soft tissue masses or fat inflammation
Diverticulitis –> CT scan + NPO, IVFs, Abx
LLq pain, fever, leukocytosis, wall thickening + stranding, >3cm perisigmoid fluid collection
Complicated diverticulitis –> CT guided percutaneous drainage –> surgery at d5
1 cause of lower GI bleed
Diverticulosis
Old, abd pain, severe distension, XR –> air-fluid, huge air loop in RUQ w/ tapering “Parrot’s beak”
Sigmoid volvulus _> proctosigmoidoscopy and leave rectal tube in
Fever, tachy, anemia, leukocytosis
Toxic megacolon = ABD X-ray
Diarrhea w/ dark brown colon and shiny patched lymph follicles
Factious diarrhea (laxative abuse)
Watery diarrhea, cramping after dairy ingestion next step?
Hydrogen breath test
Bloating, watery diarrhea, excess flatus + DM, scleroderma, surgery, AIDS, ESRD or cirrhosis
Bacterial overgrowth –> endoscopy, hydrogen breath –> high-fat diet, metaclop, augmentin
Sepsis tx w/ Cipro –> new diarrhea, WBC inc to 14K, confusion
C. diff = PO metronidazole 15K PO Vanco + IV metro
Flushing, diarrhea and wheezing, hypotension, tachy
Carcinoid syndrome –> surgery, octreotide
Abrupt painless watery diarrhea, severe dehydration
Cholera
Acute abd pain, bloody diarrhea, anemia, thrombocytopenia, renal insufficiency, jaundice
E. coli –> HUS –> plasmaphoresis
Recent diarrhea + abx –> renal failure, thrombocytopenia, schistiocytes, inc retic, inc LDH
Microangiopathic hemolytic anemia from HUS
Abd pain, bloody diarrhea, low H&H, low platelets, inc Cr, Inc bili
HUS –> renal failure/damage #1
Cirrhosis, ascities, fever, lethargy, confusion, inc WBC, inc liver enzymes, asterixis next step?
Dx paracentesis for SBP —> 3rd gen cephalosporin
Dx criteria for SBP
> 250 PMNs and + culture
Hx cirrhosis, abd pain, fever, paracentesis >250 PMN
SBP
Ascities d/t portal HTN criteria
Serum-ascities albumin gradient >1.1
Colonic perforation vs. SBP on CXR
Subdiaphragmatic free air w/ perforation
Sudden onset, constant, very severe, won’t move, free air on XR
Perforation (peptic ulcer #1) –> emergency surgery
Sudden onset, colicky, radiation, moving to find comfort
Obstruction
Gradual onset, constant, general –> specific, fever, leukocytosis
Inflammation
Mild generalized acute abd w/ ascities, fever leukocytosis, 1 organism
Primary peritonitis –> Abx
Work-up for generalized acute abd
EKG, trops, CXR (PNA), PE, amylase, lipase, CT abd (stones) –> otherwise exp laparotomy
Abd pain worsened w/ eating
Mesenteric ischemia/angina
Acute abd + AFIB or MI, blood in bowel, acidosis, sepsis
Mesenteric ischemia –> ateriogram + embolectomy
1wk RLQ abd pain –> back, fever, anorexia, fever, leukocytosis, pain w/ R hip extension and IR
Appendix rupture w/ abscess –> Abx, bowel rest –> appendectomy in 6-8wks
Trauma with vertebral fx, retroperitoneal hemorrhage + dilated bowels on XR
Paralytic ileus
Internal hemorrhoid presentation
Bleed –> rubber band ligation
Young woman, exquisite pain w/ defecation, blood streaks –> constipated
Anal fissure (post. Midline) –> CCB ointment 2% TID 6wks
Can’t sit down, no BMs d/t pain, fever, redness, swelling lateral to anus
Ischiorectal/perirectal abscess –> I&D
Hx ischiorectal abscess –> fecal soiling, perineal discomfort, cord-like tract felt
Fistula-in-ano –> r/o tumor and fistulotomy
HIV, fungating anal mass, inguinal LNs palpable
SCC of anus –> Bx + NIGRO chemradiation –> surgery if residual
Pain and swelling over coccyx/superior gluteal cleft
Pilonidal cyst –> I&D
Nagging abd pain –> back, N/V, tender in epigastrum
Acute pancreatitis –> NPO, NG, IVFs, Opioids, bowel rest
Acute onset constant epigastric pain –> back, N,V
Acute pancreatitis –> NPO, NG, IVFs, Opioids, bowel rest
Acute pancreatitis + elevated Hct
Edematous pancreatitis (hemorrhagic has lower Hct)
Pancreatitis 1st steps?
CT or RUQ US w/ pain
Tx acute pancreatitis
IVFs, fentanyl, NPO –> cholecystectomy
Complications of acute pancreatitis
PLUERAL effusion, ARDS, ileus, renal failure
1-2 wks s/p acute pancreatitis, fever, leukocytosis, shock
Infected pancreatic necrosis–> surgical debridement
Pancreatitis day 10 –> fever, leukocytosis
Abscess/suppurative pancreatitis –> wait >4wks for debridment
4wks s/p acute pancreatitis, palpable mass, inc amylase, no fever, early satiety
Pseudocyst –> US –> drainage only if >6wks or 5cm or infected
Chronic epigastric pain w/ pain free intervals, Malabs, DMII, Weight loss
Chronic pancreatitis –> CT or X-ray –> MRCP/ERCP –> small meals, enzyme replacement
Pancreatic cancer risks
Chronic pancreatitis, DM, smoking, high fat diet
Causes of chronic pancreatitis
etOH, CF, Auto-immune
Inc risk for severe pancreatitis
> 75, high CRP, obesity, etOH, inc BUN –> CT –> inc vascular permeability –> MODS
Painless jaundice >50 y/o
Pancreatic malignancy –> compressing bile ducts
Jaundice, w/ non-palpable GB, pain, steatorrhea, inc bili, alk phos, anemia
Pancreatic CA –> US –> CT
Non-tender GB, RUQ pain, elevated direct bili, elevated alk phos
Pancreatic CA –> CT scan
Multiple ulcers, jejunal ulcer, impaired fat abs, resistant to H.pylori therapy, watery diarrhea
Zollinger-Ellison syndrome (gastrinoma) –> pancreatic enzyme inactivation
Somatostain supression test –> inc gastrin, somatostatin receptive scintography
ZE –> CT + resect
Repeated dec BG, HIGH C-peptide w/ high insulin
Insulinoma –> CT + resect
DM, migratory necrolytic dermatitis
Glucagonoma (DO NOT do glucose supression) –> glucagon assay, CT, resection or somatostain
Fasted –> large meal, epigastric pain, vomiting –> resolves, NO fever or leukocytosis
Biliary colic (stone in cystic duct) –> US for cholelithasis
Colicky RUQ pain –> R shoulder, belt like radiation to back
Biliary colic (stone in cystic duct) –> US for cholelithasis
Bloating and dyspepsia after fatty meals
Cholelithiasis –> US
RUQ pain, N/V, fever, air fluid levels in GB, US showing curvilinear shadowing
Emphysematous cholecystitis
Biliary colic –> constant pain, fever, leukocytosis + stones, thick wall
Acute cholecystitis –> NG, NPO, IVFs, Abx and “cool down” ?chole w/in 72hrs
Cause of acute cholecystitis
Impaction of STONE in CYSTIC duct –> inc alk phos
High fever, jaundice, RUQ pain, MARKEDLY HIGH ALK PHOS, WBC
Acute cholangitis (common duct blockage) –> Abx, ERCP or percutaneous drainage
Obstructive jaundice, severe icterus, very high alk phos cause
Common bile duct stone
Gallstone pathogenesis
Excess cholesterol –> insoluble crystals
Risk factors for cholesterol gallstones
White, obsese or rapid loss, Female, OCPs, glucose intolerance, hypomotility (preg, old)
Types of gallstones
Cholesterol»_space; mixed»_space; pigmented calcium bilirubinate
Risk factors for pigmented gallstones
Hemolysis (sickle cell), biliary infection, parasite, old age
Anti-mitochondrial Abs, very high alk phos
Primary biliary cirrhosis
Gallstone path in small bowel resection or TPN pt
Stasis
Gallstone path w/ OCPs & pregnancy
Estrogen –> inc Cholesterol secretion
Alternative tx for gallstones
UDCA –> dec cholesterol in bile by red hepatic secretion and inc intestinal abs
Burns, severe trauma, TPN, vent or fasting –> RUQ pain, thick GB w/o stones + fluid around, bowel distention
Acalculous cholecystitis –> gangrene, perf, emphysematous –> sepsis –> death
S/P cholecystectomy, intermittent RUQ pain, dilated common bile duct
Postcholcystectomy syndrome (PCS) –> ERCP
Anti-mitochondrial Abs
PBC
Pruritis, jaundice, steatorrhea, inc Alk phos, bilirubin, anti-mitochondrial abs eye finding?
PBC = xanthelasma
Hx of UC/IBD, fatigue, inc alk phos, bilirubin, atypical perinuclear antineutrophil cytoplasmic Ab
PSC
ERCP shows hepatic duct dilation “beading,” periductular “onion skinning,” w/ lymphocytic infiltrate
PSC
SW Native, mexican, gall stones, old, salmonella carrier, procelin GB at risk?
GB CA = surgery curative
Elevated conjugated bilirubin, Alk Phos, painless jaundice, fatigue, weight loss
Malignant obstruction –> US or CT
Red bile salt abs
Ileal resection
How to evaluate injury/hepatic function d/t chronic hepatitis
Liver Bx
High iron, transferritin sat, ferritin, high liver enzymes
Hemochromatosis = susceptible to Listeria, Yersinia, Vibrio (iron-loving)
Inc risk of infections w/ what organisms w/ hemochromatosis?
Yersinia, Vibrio, Listeria
Young, new resting temor, rigidity, clumsy gait, slurred speech, steatosis, mallory bodies in liver
Wilson’s disease
PAS + and diastase resistant liver bx
Alpha-1 anti-trypsin deficiency
Fever, leukocytosis, tender liver, hx ascending cholangiitis
Pyogenic liver abscess –> US/CT –> percutaneous drainage
1-2 wks fever, RUQ pain from endemic area, dysentery, jaundice, liver mass, anchovy paste
Amebic liver abscess —> serology + METRONIDAZOLE
Travel to Mexico, RUQ pain, single thin walled, uniform liver cyst, bloody diarrhea
Amebic liver abscess (E. histolytica)
Fever, abd pain, jaundice, N/V, AST>ALT
Alcoholic hepatitis —> Prednisone
Slightly elevated liver enzymes, - hepatitis, no extrahepatic sx, TB tx, fatty change, necrosis
INH hepatitis
Slightly elevated liver enzymes, NO necrosis or fatty liver changes, OCPs
OCP hepatitis
RUQ pain, inc AST, ALT, DM, no etOH, hyperechoic liver
Non-alcoholic fatty liver (NAFLD) - insulin resistance –> inc lipolysis, TGs synthesis
Ascites, jaundice, telangiectasias, palmar erythema, testicular atrophy, gynecomastia, inc GGT
etOH hepatitis
EGG SHELL calcification of hepatic cyst, budding daughter cysts
Hydatid cyst - Echinococcus –> surgery + albendazole
IVDU w/ + HBV infection treated, now AST/ALT decline, PT increases = ?
Fulminant hepatitis
AFP level high, one lesion w/ poorly defined borders, central necrosis possible
HCC
Vague RUQ pain, weight loss, AFP high
HCC –> CT + resection
Solitary right lobe mass, young, middle aged women, RUQ pain, jaundice,
Hepatic adenoma (OCPs) –> CT –> resection to prevent rupture and bleeding
Enlarged hepatocytes containing glycogen and lipid deposits
Hepatic adenoma –> CT –> resection to prevent rupture and bleeding
Liver mass w/ sinusoids in kupffer cells, hyperplastic response to hyperperfusion
Focal Nodular Hyperplasia
Liver cirrhosis tx change pH from acidotic –> alkalotic, inc Na, dec K, inc BUN, Cr,
Loop diuretic therapy
Elevated conjugated bilirubin
Hepatobiliary disease (cirrhosis, hepatitis, gallstone), Dubin-Johnson, Rotor
Inc in DIRECT bili causes
Obstructive (cyst), sepsis, INFECTION, CF, metabolic
Elevated unconjugated bilirubin
Hemolysis, Thalassemia or Gilbert’s
Pre-hepatic jaundice
RBC hemolysis –> unconjugated bili
Post-hepatic jaundice
Bile duct stone, strictures, tumor –> conjugated bili
Hepatic conjugated hyperbilirubinemia jaundice
Viruses, etOH
Conjugated bilirubin, elevated ALT, AST
Viral, etOH, ischemic, autoimmune, toxin HEPATITIS, Hemochromatosis
Conjugated bilirubin, elevated alk phos
Cholelithiasis, PSC, PBC, Malignancy, Cholangiocarcinoma –> US
Bili 6-8, inc INDIRECT only
Hemolytic jaundice
Elevated both conjugated, unconjugated + very high LFTs, modest alk phos
Hepatocellular jaundice - Hepatitis
Elevated both conjugated, unconjugated + modest LFTs, very high alk phos
Obstructive jaundice –> US
High alk phos, dilated ducts on US next step?
ERCP –> chole
Obstructive jaundice + anemia + blood in stool
Ampullary CA –> endoscopy
Gilbert’s path
AR dec in glucuronidation –> unconjgated bili (2-4md/dl)
Infant w/ kernicterus, indirect bili 20-25
CNJ-1
Dark granular liver on bx
Dubin-Johnson (not Rotor - inc both labs)
Jewish, conjugated bili, weak, fatigue, icteric w/ illness
Dubin-Johnson
Elevated coproporphyrin I
Dubin-Johnson
Conjugated bilirubin, Normal ALT, AST, Alk phos
Dubin-Johnson, Rotor
Dark urine + bilirubin + dipstick = conjugated, jaundice cause?
Rotor
Always pathologic jaundice
Direct >15%, 1st 24hrs
1st week, poor intake, poor weight gain, dec stool, dec wet diapers, jaundice
BreastFEEDING failure jaundice - relative dehydration
> 1wk, inc B-glucuronidase & lipase jaundice, UNconjugated bili
Breast milk
When to evaluate jaundice
5-8 in 24hrs, inc >0.5mg/dl (hemolysis)
Asian, 2-day old, jaundice, high un-conjugated bili
Physiologic = dec UGT enzyme
Exchange transfusion indication
Bilirubin >20-25
Inc conjugated bilirubin
Galactosemia
Ab pain, dark urine, mass RUQ, cystic extra hepatic mass
Choledochal cyst –> US –> CT or MRI & can –> cholangiocarcinoma
Congenital intrahepatic dilation of bile ducts
Caroli’s syndrome
Marked obstructive jaundice, substantial conjugated, acholic stools
Biliary atresia
6-8 weeks, persistent jaundice
Biliary atresia –> HIDA 1 week after phenobarbital injection (pools = dx) –> resect
Anti HBsAg (+), Anti-HAV Abs (-), Anti-HCV Abs (+) next step?
HAV vaccine to prevent acute hepatic failure - Has Hep C infection
Diarrhea, Abd pain, jaundice 1mo after travel to C. America, tender hepatomegaly, low fever
Hep A - contaminated water/oysters –> supportive care + vaccine or Ig to close contacts
Test to confirm HepA
Anti-Hep A IgM
Risk of developing chronic HBV infection
90%infants –> 80% of HCC worldwide
HBsAg >6 months
Chronic HBV
Anti-HBcAg IgM
Acute infection
HBV tx
Interferon + lamivudine
Waxing and waining LFTs, chronic arthralgias, +RF, ANA, cryoglobulin, PCT, GN, type of hepatitis?
Chronic Hep C –> Hep A & B vaccines, safe in pregnancy
1 chronic liver disease and #1 cause for transplant
HCV - 60-80% –> chronic infection = avoid etOH use, get HepA, B vaccination
Unintentional weight gain, jaundice, ascites, RUQ tenderness, edema, faded tatoos
Chronic Hep C (HCV RNA + Anti-HCV Ab)
HCV tx
Interferon + ribavirin
How does HDV infect
Viral envelope of HBV
HbsAg
1st, before AST, ALT rises, suggests infectivity
Anti-Hbs
Vaccination or cleared = immunity
Anti-HBc
After HbsAg dissapears - most specific for acute infection, present in “window” period
HbeAg
Infectivity, >3mo = chronic
Central abd herniation + covering
Omphalocele - tetrology, trisomy, ASB, Beckwith
Right paraumbilical hernia, no covering, no other malform
Gastroschisis –> Silo, moist –> twist bowel in each day, TPN
1st step in managing gastrochisis
Immediately wrap w/ sterile dressing, plastic –> OG, Abx –> surgery
1 intestinal obstruction
Atresia
Distention, tenderness, bloody stool & air in bowel wall
Necrotizing enterocolitis - d/t asphyxia –> bowel ischemia
PRE-ME, abd distention, vomiting, hypothermia, enteral feedings –> bloody BM w/ 1st feed, DEC platelets
Necrotizing enterocolitis –> breast milk dec
<1.5kg, congenital heart disease, hypotension, bloody stool, lethargy, RDS
Necrotizing enterocolitis –> NPO, Abx, IVF, TPN –> US brain to r/o IVH
Small left colon, ab distention, no meconium cause
DM mom
Reye syndrome liver pathology
Fatty vacuolization (fatty liver) w/o inflammation, mitochondrial injury
Inc LFTs, prolonged PT, hypoglycemia, acidosis, vomiting, ASA
Reye syndrome –> FFP, glucose, mannitol
Cryptorchidism risks
Pre-me, LBW, DES –> orchipexy b4 1 y/o
Cryptorchidism complications
Subfertility > torsion, cancer, hernia
Mom migraine HA, recurrent self-limiting episodes of vomiting
Cyclical vomiting
1st born boy, 3-5wks, Erythromycin use, formula, non-bili vomit, small stool, hungry
Pyloric stenosis (hypoCl, K metabolic alkalosis) –> US donut sign –> IVFs, electrolytes, surgery
Difficulty swallowing, refusal to feed, vomiting
Foreign body - #1 are COINS –> flexible endoscopy
Foreign body - no Sx tx; not radioopaque tx?
Observe if not sharp; CT scan
Concave abd, barrel chest, R sided heart, No Left lung sounds, RDS
Diaphragmatic hernia = posterolateral LEFT –> intubation, delay repair 3-4d
Scaphoid abd, resp insufficient
Diaphragmatic hernia = posterolateral LEFT –> intubation
Bilious vomiting, CTFR gene, no air in rectum - “ground glass” loops of bowel
Meconium ileus –> Gastrographin enema
Soap-bubbles on XR, microcolon contrast enema
Meconium ileus
3d old, inspissated/viscous meconium
Meconium ileus = CF
Meconium normal consistency when irrigated, rectosigmoid obstruction, explosive w/ DRE
Hirschsprungs –> bx & surgery
2 y/o male painless (vs. intussusception) hematochezia
Meckels –> techneicum-99 –> surgery
Recurrent intussussception cause
Meckels diverticulum
Hx gastroenteritis, colicky abd pain, drawing legs to abd, vomiting, “empty RLQ”
Intussussception –> US or KUB (sausage shape) –> air enema
Triple bubble sign, bilious vomiting, no meconium, cocaine use, no chr abn
Jejunal atresia
Meconium aspiration syndrome
D/t stress, hypoxemia, Inc >42wks
Regurg each feeding, burps –> better, no gagging, cough, ok weight/size
Normal GERD –> upright 20-30min and reassurance, small frequent feeds
Regurg, vomiting, bloody stool, eczema
Milk protein allergy
Fam hx eczema, breast feeding, bloody stool, regurg
Milk protein allergy –> mom eliminate all dairy and soy, continue breastfeed
Regurg, FTT, sign irritability, Sandifer syndrome
GERD –> thicker, antacid, pH probe, EGD
Coughing, choking spells, gurgling, NG tube coils
Esophageal atresia –> surgery
Upside-down baby gram large distance imperforate anus
Colostomy now & fix b4 toilt training
Epispadias assoc w/
Bladder extrophy
“Wet w/ urine,” “red and shining,” “no bowel is seen”
Bladder extrophy –> emergent intervention first 1-2d of life
Dysuria from birth, 0 urine output day 1, inc Cr, +/- oligohydramnios
Posterior urethral valves –> cath + residuals –> VCUG –> leave cath in, resect & re-implant
1st drinking binge (high flow) –> colicky abd pain that sponatenously resolved
Uretero pelvic junction –> IVP –> stent ot surgery
GIRLS normal voiding + CONSTANT LEAK, ureter –> urethra
Low implantation of ureter –> IVP –> re-implantation b4 toilet training
Frequent UTIs OR any pyelonephritis
Vesiculoureteral reflux –> IVP –> surgical OR ppx abx and wait to outgrow
Unless hematuria occurs w/ HUGE trauma, kids don’t pee blood
US –> IVP –> NO CT scans unless it may be cancer