practical classes Flashcards
Risk factors for Barrett oesophagus
High BMI alcohol Smoking Drugs which relax LOS Genetic
How does a patient with oesophageal cancer present
Asymptomatic or
Heart burn, chest pain, dyspepsia, blood in stool, iron deficient anaemia
Diverticular disease
Outpouchings as a result of herniation of the mucosa and submucosa through the bowel wall at sites of weakness
Sigmoid colon most commonly affected
Can be present with intestinal obstruction
Complications of diverticular disease
Diverticulitis and perforation
-> peritonitis
Alcohol toxicity
350mg/dl to 600mg/dl
No antidote for alcohol toxicity
Chronic alcoholic liver disease progression
Fatty change - steatosis
Cirrhosis
Fibrosis
- hepatitis
What enzyme is raised in chronic alcohol misuse
Gamma-glutamyltransferase
Liver function tests
Bilirubin, albumin, total protein
ALT, AST, ALP
GGT
PT
Why do patients with chronic liver disease have a tendency to bleed
Dynamic disequilibrium between procoagulant and anti-coagulant states in individuals with cirrhosis
Other causes of steatosis - non alcoholic steatohepatitis
Obesity
Insulin resistance
Hyperglycaemia
High levels of fat
Symptoms/signs of acute hepatitis
Jaundice
Polymorphs/neutrophils in liver
Risks of a liver biopsy
Bleeding Pain Infection Collapsed lung/haemothorax Injury to other organs
Causes of cirrhosis
Alcohol
Viral hepatitis
Primary biliary cirrhosis (autoimmune)
Primary haemocromatosis (genetic - iron overload)
Wilson’s disease (genetic - Cu build up)
Alpha-1 antitrypsin deficiency (genetic increased risk of COPD and liver disease - inflammation of blood vessels)
Cryptogenic (unknown cause)
Complications of cirrhosis
Portal hypertension (cirrhosis, oesophageal varices, splenomegaly, encephalopathy)
Liver failure (jaundice, hypoproteinaemia, bleeding, hepatic encephalopathy)
Ascites
Hepatocellular carcinoma
Causes of bleeding in an alcoholic patient
Oesophageal varices Peptic ulcer Mallory Weiss tear (when a patient vomits against a closed cardiac sphincter - NSAIDS and Helicobacter - alcohol irritates gastric mucosa and exacerbates effects above) Haemorrhagic gastritis Reflux oesophagitis with ulceration