Gastrointestinal - 50% Flashcards
Acute and Chronic Pancreatitis
dx
Dx:
- Serum Amylase x5 ULN (non spec)
- Serum Lipase x3 ULN specific
- CT scan - gold standard
- +/- jaundice
Ranson’s Criteria
At admission:
- Age > 55
- Glucose > 200
- AST > 250
- LDH > 350
- WBC > 16,000
48 hrs after admission
- Hematocrit fall > 10%
- BUN Rise > 5mg/dl
- Ca < 8 mg/dl
- PO2 < 60 mmHG
- Base deficit > 4 mEq/L
- Fluid sequestration > 6L
Acute Pancreatitis
eti, sxs
MC gallstones, 2/2 ETOH N/V
Sxs:
- Epigastric abd pain
- r-> back worse supine and
- post prandial
- hemorrhagic
- Grey Turner - flank ecchymosis
- Cullen - periumb ecchymosis
Acute Pancreatitis
tx
Mild - bowel rest NPO Pain control Severe - ICU
Anal Abscess and Fistula
Dx, tx
Clinical
I&D followed by WASH
- Warm water
- Cleansing
- Analgesics
- Sitz Bath
- High fiber diet
Anal Abscess
eti, sxs
Bacterial infx of perianal ducts/glands - MC S Aureus
MC posterior rectal wall
Sxs:
- Painful defecation
- Rectal pain worse with sitting, coughing
Anal Fissures
dx and tx
- clinical
- Sigmoidoscopy if < 50 yo to r/o FH of colon ca
- Analgesics
- High fiber diet
- Stool softener, laxatives, mineral oils
Anal Fissures
eti, sxs
Painful, linear tear/crack low fiber diet
MC in posterior midline
2/2 Crohn’s and Granulomatous (TB or sarcoid)
Sxs:
- Severe, tearing pain with defecation
- Pt afraid of BM —> Constipation and
- BRBPR
Anal Fistula
eti, sxs
open tract btwn two epithelial-lined areas
MC with Crohn’s
Sxs:
- Perirectal/anal swelling
- painful defecation
- Malodorous drainage
Anorexia Ddx
Appendicitis
- Periumbi pain, N/V, anorexia, RLQ
Gastric Ulcers
- epigastric pain, N/V, anorexia
Duodenal Ulcers
- Epigastric pain - burning aching, anorexia, decr appetite
Gastric Cancer
- WEAPON
Lower GI Bleed
- abd pain, melena, anorexia, fatigue, syncope
Carcinoma of GB
- biliary colic, wt loss, anorexia, asymp til late
Pancreatic carcinoma
- painless jaundice from CBD obstruction; wt loss, abd pain -> back, weakness, pruritus from bile salts, anorexia, courvoisier’s sign, acholic stool, dark urine, DM
Appendicitis
Obstruction of appendix,
MC d/t fecalith, malignancy, inflammation, foreign body
Sxs:
- 10-30 yo
- anorexia, N/V, leukocytosis
- periumbilical pain -> RLQ pain
Dx
- PE signs
- Rovsing sign - RLQ pain w/ LLQ palp
- Obturator sign - pain with internal/external hip rotation w/ flexed knee
- Psoas sign - RLQ pain w/ hip flexion/extension against resistance
- McBurney’s point of tenderness- 1/3 of distance from ant sup iliac spine and navel
- Abd US - initial test
- CT - non contrast - gold
Tx
- appendectomy
- IV Abx - Cipro + Metronidazole
Bariatric Surgery
complications
Early complications
- anastomostic leak
- presents with hemodynamic instability
- DVT/PE
- bleeding
- infx
- Splenic injury
Late complications
- Malnutrition + nutritional probs
- Marginal Ulcers, anastomastic stricturs
- Internal Hernia
- Band slippage
- Band erosion
- esophogeal dilatation
Bariatric Surgery
types
Indications
- BMI > 40 or BMI >35 + medical problem related to morbid obesity
- individuals must have failed other non-surgical wt loss program
- Psychologicall stable - follow post op orders
- No caused by medical disease
Restrictive procedures - less extensive but less wt loss +decr in morbidity
- Adjustable Gastric banding
- band slippage can cause vomiting/regurgitation, inability to keep food down
- Vertical Banded Gastroplasty
- Sleeve Gastrectomy
Malabsorptive procedures - more wt loss, but probs with malnutrition
- Biliopancreatic diversion
- Biliopancreatic diversion w/ or w/o Duodenal Switch
Combination of restrictive and Malabsorptive procedures
- Roux-en-Y Bypass - mean wt loss 50% of excess weight
- MC type used
- proximal gastric pouch - Roux-en-Y gastrojejunostomy
Large Bowel Obstruction
Causes - volvulus, adhesions, hernias, colon cancer (MCC in elderly ppl)
Sxs:
- Constipation, obstipation, high pitched BS
- N/V
- gradually increasing distention and pain (longer eps btwn pain)
Dx:
- KUB/abd Xray - distended proximal colon w/ haustra, air fluid levels, no gas in rectum
Tx:
- NPO
- NG suction
- IV fluids
- monitoring pain
- Surgery if mechanical obstruction w/in 48 hrs
Small Bowel Obstruction
MCC - adhesions d/t previous abd surgeries
Sxs:
- Colicky abd pain, obstipation
- N, bilious vomiting
- Abd distention, rigid or firm
- hyperactive BS => hypoactive BS
Dx
- KUB - air fluid level on upright = initial
- abd CT with contrast **gold
Tx
- NG tube
- Bowel rest
- Surgery if unresolved
Volvulus
Bowel Obstruction
Twisting of any part of the bowel @ its mesenteric attachment site
MC Sigmoid Colon & cecum
Sxs - obstruction
- abd pain, distention
- N/V
- Fever
- tachycardia
Dx - KUB series
Tx -
- endoscopic decompression - initial TOC
- Surgical correction - 2nd line
Cholangitis
dx, tx
Dx:
- 1st - RUQ US or CT gold -
- ERCP for cholangiography after afebrile for 48 hrs
- ERCP for decompression
- PTC if can’t do ERCP
Tx with Abx - Ceft + Metro - Zosyn (pip/tazo)
Cholangitis
eti, sxs
info of biliary tract 2/2 to obstruction - gallstones
MC Ecoli or Kleb
Charcot’s Triad
- RUQ pain
- Jaundice
- Fever
Reynold’s Pentad
- above + AMS & Sepsis
Cholecystitis
dx & tx
Dx with RUQ US >3mm
HIDA scan (gold std)
Tx:
NPO IV fluids Abx (ceft + metron) Definitive - cholecystectomy
Cholecystitis
eti, sxs
Inflammation of GB
MC gall stones
Sxs:
- RUQ/epigastric pain
- N/V/Anorexia
- R-> R shoulder/scapular - Boas’s sign
- Inspiratory halt during deep palpi = Murphy’s sign
Choledocholithiasis
dx, tx
Trans abd US gold - ERCP extraction tx
cholecystectomy definitive
Choledocholithiasis
eti, sxs
GS in Common Bile Duct
1ry - formation of gs in CBD
2ry - passage of gs from GB to CBD
Sxs:
asymp 50%
Biliary colic w/ RUQ tenderness +/- jaundice
may lead to shock
Cholelithiasis
dx, tx
Gold - RUQ US > 2mm
3 types deps on color (yellow for cholesterol
black - hemolysis, ETOH, cirrhosis
brown - biliary tract infx observation if asymp
Tx - Urseodeoxycholic acide to dissolve GS Elective cholecystectomy
Cholelithiasis eti, sxs
Gallstones + pain when GB compresses on GS
Fat Forty Fertile Female Flatulence
Sxs:
- MC asymp Biliary colic
- episodic RUQ/epig pain —> resolves in 30-1h
- post prandial pain + at night
Chronic Pancreatitis
tx
Pancreaticojejunostomy -> Whipple PO
Pancreatic enzyme replacement
ETOH abstinence
Pain control