surgery Flashcards
risk factors for gallstones
fat
forty
female
foetus
mirizzi syndrome
large stone in the GB/cystic duct compressing on the CBD resulting in obstruction and jaundice
presentation of ascending cholangitis
charcots triad (fever/rigors, RUQ pain, jaundice)
+ shock and confusion = reynaolds pentad
complications of gallstones
mirizzi syndrome
ascending cholangitis
acute pancreatitis
gallstone ileus (due to erosion through GB forming a fistula and causing bowel obstruction )
presentation of acute pancreatitis
epigastric pain radiating to back N&V fever hypovolaemia grey turners and cullens (indicates haemorrhagic pancreatitis)
investigations for acute pancreatitis
serum lipase or amylase > 3x ULN raised inflammatory markers CXR (ARDS, pleural effusions) MRCP CT severity score and glasgow severity score
management of acute pancreatitis
IV fluids analgesia antiemtic ERCP if gallstone and cholangitis Abx if pancreatic necrosis
presentation of chronic pancreatitis
epigastric pain (dull, alleviated by leaning forward, radiates to back)
steatorrheoa
wt loss/malnutrition
diabetes
management of chronic pancreatitis
NSAIDs if acute pain smoking alcohol cessation enzyme supplements psudocyst decompression pancreatic duct decompression ESWL for calcifications
presentation of haemorrhoids
fresh painless PR bleeding
pruritus ani
lumps in perianal area
thrombosis can cause severe pain
management of haemorrhoids
high fibre and fluid diet topical hydrocortisone laxitives rubber band ligation or injection sclerotherapy haemorrhoidectomy
hinchey classification
I - local abscess
II - pelvic abscess
III - purulent peritonitis
IV - feculent peritonitis
causes of visceral perforation
ruptured peptic ulcer
perforated appendicitis, colitis, diverticulitis
iatrogenic - colonoscopy
presentation of mesenteric ischaemia
acute severe abdo pain +/- PR bleeding (usually after eating)
hypovolaemia (tachycardia, hypotensive)
no abdominal signs
AF
investigations of ischaemic bowel
FBC - raised WCC, low Hb ABG - raised lactate, metabolic acidosis raised amylase AXR CT/MR angiography