Gastro-Intestinal Flashcards
(196 cards)
Define acute pancreatitis
Acute inflammation of the pancreas
Exocrine enzymes are released that cause autodigestion of the organ
Causes of acute pancreatitis
iGET SMASHED Idiopathic Gallstones Ethanol (Alcohol) Trauma Steroids Mumps Autoimmune disease Scorpion Sting Hypercalcaemia/hyperlipidaemia ERCP Drugs (thiazides, azathioprine, valporate)
Neoplasms
Pregnancy
Symptoms of acute pancreatitis
Sudden onset abdominal pain (epigastric)
Vomiting
Pain radiates to the back
Leaning forward relieves the pain
Signs of acute pancreatitis
Fever Jaundice Tachycardia Cullen's sign - umbilical bruising Grey Turner's sign - flank bruising Ascites
Investigations for acute pancreatitis
Serum amylase 3x higher than normal Serum lipase FBC U&E's CRP X-ray CT scan
What scoring system measures the severity of acute pancreatitis
Glasgow prognostic score
What is the glasgow prognostic score
PANCREAS
PaO2 <60 Age >55 Neutrophils >15 Calcium <2 uRea >16 Enzymes (LDH>600 or AST/ALT >200) Albumin <32 Suger (glucose >10)
<2 = mild 2 = moderate >2 = severe
Management for acute pancreatitis
IV fluids
Analgesia
Endoscopic drainage of large pseudocysts
Antibiotics if infection causing pancreatic necrosis
Surgery to remove infected pancreatic necrosis
Early complications of acute pancreatitis
Shock ARDS Renal failure DIC Sepsis Low calcium Increased glucose
Late complications of acute pancreatitis
Pancreatic necrosis Infected necrosis Pseudocyst Pancreatic abscess Chronic pancreatitis
Causes of small bowel obstruction
Adhesions
Hernias
Malignancy
Causes of large bowel obstruction
Adhesions Hernias Colon cancer Constipation Volvulus Neoplasm Intussusception Gallstone ileus
Symptoms of bowel obstruction
Vomiting - occurs earlier in small bowel obstruction
Nausea
Anorexia
Abdominal distension - pain is higher in small bowel obstruction
Constipation
Investigations for bowel obstruction
Abdominal x-ray - small bowel has valvulae conniventes and haustra. no gas in large bowel. dilated bowel loops centrally
CT scan
Management for bowel obstruction
NG tube and suction IV fluids Analgesia Antibiotics e.g. metronidazole Antiemetics
Define volvulus
When the bowel twists on its mesentery, which can produce severe, rapid, strangulated obstruction
What are the two main types of volvulus
Sigmoid - counter-clockwise twisting
Caecal - clockwise twisting
Complications of volvulus
Obstruction
Ischaemia
Perforation
What would you see on abdominal x-ray for a volvulus
Coffee bean sign
Treatment for a volvulus
Laparotomy - Hartmann's procedure (sigmoid) Right hemicolectomy (caecal)
Most common type of colorectal cancer
Adenocarcinoma
Risk factors for colorectal cancer
Age Smoking Alcohol Family history Diet (low fibre, red meat) Previous cancer Inflammatory bowel disease (Crohn's and UC)
Symptoms for colorectal cancer
Left sided = Bleeding/mucus PR
Altered bowel habit. Tenesmus. Mass PR
Right sided = Weight loss. Low haemoglobin - iron deficiency anaemia. Abdominal pain.
Either = Abdominal mass. Perforation. Haemorrhage. Fistula.
Investigations for colorectal cancer
FBC - microcytic anaemia Faecal occult blood Colonoscopy - Gold standard CT colonoscopy CT scan - staging