abdominal Flashcards
GORD:
- how common?
- risk factors? 5
- triggers? 6
- causes? 3
10-20% in the west
- caucasian
- obese
- pregnant
- smoking
- some drugs (eg Ca channel blockers)
- alcohol
- coffee
- fizzy drinks
- chocolate
- fatty foods
- spicy foods
- hiatus hernia
- loss of sphincter tone
- abdominal pressure
GORD:
- symptoms? 6
- extra-oesophageal symptoms? 3
- heart burn (dyspepsia) esp after meals, relieved by antacids
- belching/burping
- food/acid regurg
- increased salivation (water brash)
- painful swallowing odynophagia
- fullness feeling
- nocturnal asthma
- chronic cough
- laryngitis/sinusitis
nb heartburn as a symptom has a very high positive predictive value
GORD:
- investigations? 3
- non-pharm treatments? 7
- try giving pharm treatments and see if symptoms subside
- endoscopy (if symptoms >4wks on treatment or cancer red flags)
- if endoscopy negative, 24hr oesophageal ph monitoring
- reduce triggers
- loose weight
- stop smoking
- take off drugs that relax muscles (Ca channel blockers, nitrites, anti-cholinergics)
- take off drugs that irritate stomach (NSAIDs, bisphosphonates)
- raise head off bed (not extra pillows)
- small meals, don’t eat 3 hours before bed
nb only do barium swallow if suspect hiatus hernia
GORD:
- pharm treatments? 3
- surgical treatments? 1
- antacids
- alginates (gaviscon)
- PPIs (better than H2-blockers)
nb antacids and alginates only relieve symptoms, don’t stop progression
- surgery to increase resting tone of sphincter (eg nissan fundoplication)
GORD:
- complications? 6
- oesophagitis
- ulcers
- oesophageal strictures
- iron deficiency
- barrets oesophagus
- pulm fibrosis (very rare)
GORD:
- differentials? 5
- oesophagitis from corrosives/candida/etc
- hiatus hernia
- gastritis (eg nsaids, h pylori)
- gastric or duodenal ulcer
- cardiac (or pulm) disease
peptic ulcers
- two types? (which most common)
- how common?
- most common causes? 2
- other risk factors? 3
- duodenal (90%) and gastric (10%)
- 10% lifetime risk
- H pylori (85%)
- drug-induced (NSAIDs, SSRIs, steroids)
- smoking
- increased age
- poor gastric emptying/increased acid secretion
describe the pathophysiology for two commonest causes of peptic ulcer disease
H PYLORI
- causes inflammation of mucosal lining
- depleting the layer of alkaline mucus + altering gastric acidity
- h pylori impairs the function of cells which produce somatostatin (norm limits acid secretion of parietal cells)
NSAIDS
- inhibit prostaglandin synthesis
- reducing the production of protective alkaline mucus
- thereby increasing risk of ulceration (particularly in stomach)
peptic ulcer disease
- symptoms? 3
- signs? 1
- difference in symptoms between duodenal and gastric ulcer?
- upper abdo pain (burning sensation, heaviness or ache)
- (bloating)
- (burping)
- tender epigastrum
duodenal ulcer = pain before meals or at night (relieved by eating!) (50% asymptomatic)
gastric ulcer = pain after/during meals (also more likely to be asymptomatic)
peptic ulcer disease:
- investigations? 2
- non-pharm treatments? 5
- C13 breath test (most accurate, non-invasive h pylori test)
- if over 55 or ALARMS signs: endoscopy
nb there are other, less used, tests
- stop NSAIDs
- reduce stress
- reduce alcohol consumption
- stop smoking
- eat less trigger food
peptic ulcer disease:
- pharm treatments? 2
if h.pylori:
- triple therapy (2 Abx + PPI)
if drug-induced:
- stop drugs
- PPI (or H2-antagonist)
nb two Abx are norm clarithromycin plus amoxicillin or metronidazole
red flags for peptic ulcer disease? 7 (6 are in an acronym)
- over 55years
ALARMS
- A = anaemia
- L = loss of weight
- A = anorexia
- R = recent onset/progressive symptoms
- M = melaena/haematemesis
- S = swallowing difficulty
peptic ulcer disease:
- differentials? 7
- functional (non-ulcer) dyspepsia
- gastritis or duodenitis
- GORD/oesophagitis
- hiatus hernia
- gastric malignancy
- pancreatic cancer
- gallstones
(- duodenal crohns)
(- TB)
(- lymphoma)
also think of possible resp or cardiac conditions
peptic ulcer disease:
- complications? 3
- bleeding
- perforation
- gastric cancer
Acute upper GI bleed:
- causes? 4
- risk factors? 4
- peptic ulcer (50%)
- oesophageal varices
- mallory-weiss tears
- gastric cancer
nb peptic erosions (ie before an ulcer) can also cause bleeding but rarely
- liver disease/alcoholism
- h pylori
- NSAIDs
- repeated vommitting (mallory weiss)
nb anti-coagulants don’t (on their own) cause bleeding but they will exacerbate any bleeding that does occur
nb there are other very rare causes!
acute upper GI bleed
- symptoms?
- signs?
- haematemesis
- melaena
- cold (+ clammy) peripheries
- decreased GCS
- poor urine output
- tachycardic
- low BP (faint pulse)
- rapid breathing
ie signs of shock
acute upper GI bleed:
- investigations? 4
- bloods (FBC, LFTs, U+E, clotting screen, group + save)
- risk scoring
- urinary catheter to monitor output
- endoscopy asap
nb give IV fluids while this is all going on
what is the name of the risk score used for upper GI bleeds
Rockall risk scoring
acute upper GI bleed:
- treatment? 5
- give IV fluids (give RBCs if v poorly)
- stop NSAIDs
- stop/reverse warfarin (or other anti-coags)
- give PPIs
(- Abx) - endoscopy or surgery depending on cause/severity
nb preferably stop drugs before endoscopy
crohn’s disease:
- risk factors? 5
- age + gender affected?
- smoking
- family history/genetics
- appendectomy
- NSAIDs
- oral contraceptives
- onset is norm between 20-40years
- men = women
nb stress + depression may precipitate relapses
crohn’s disease:
- GI symptoms? 5
- diarrhoea
- pain on defecation
- abdo pain
- malaise
- weight loss
- anorexia
nb symptoms depend on which part of GI tract affected
nb ileocaecal is most common site - 40% of patients
crohn’s disease:
- GI signs? 4
- mouth ulcers
- anal or peri-anal skin tag/fistula/abscess
- abdominal tenderness
- palpable mass in RLQ
crohn’s disease:
- extra-GI symptoms/signs? 5
- iritis
- arthritis
- erythema nodosum
- pyoderma gangrenosum
- clubbing
crohn’s disease:
- blood tests? 5
- other investiugations? 3
- FBC (for anaemia)
- U+E
- LFTs
- CRP
- ESR
- stool microscopy + culture (rule out infective causes)
- faecal calcprotectin
- endoscopy w biopsy is gold standard
nb on endoscopy see cobblestone appearance with skip lesions + transmural inflammation
crohn’s disease:
- non-pharmalogical treatments? 4
- pharmalogical treatments? 4
- surgical treatments? 1
- quit smoking
- optimise nutrition
- colorectal cancer screening
- screen for osteoporosis (due to steroid use)
for acute attacks:
- analgesics (paracetamol preferred)
- steroids (prednisolone or hydrocortisone)
- immunosuppressants (azothioprine, mercaptopurine, methotrexate)
- cytokine-modulating drugs (infliximab, adalimumab)
- majority will have at least one surgery usually when drugs fail
- never curative
- beware of short bowel syndrome
crohns:
- differentials? 11
- ulcerative colitis
- infective colitis
- pseudomembranous colitis*
- ischaemic colitis
- microscopic colitis
- diverticulitis (norm LLQ though)
- IBS
- coeliac disease
- anal fissure
- cancers
- endometriosis
UC:
- risk factors?
- age + gender affected?
- NOT smoking
- genetics/FH (though stronger in crohn’s)
- oral contraceptives
nb stress + depression may precipitate relapses
peak incidence 15-25years
nb smaller peak between 55 + 65
UC:
- GI symptoms? 4
- systemic symptoms? 4
- episodic diarrhoea (+/- blood + mucus)
nb more blood than in crohn’s
- crampy abdo pain/discomfort (esp in LLQ)
- increased bowel frequency (+pre defecation pain)
- tenesmus (persistent, painful urge to pass stool even with empty rectum)
- fever
- malaise
- anorexia
- weight loss
nb is relapsing + remitting
UC:
- signs? 14
incl extraintestinal signs/associated conditions
often there are none
- fever
- tachycardia
- tender, distended abdomen
- clubbing
- erythema nodosum
- pyoderma gangrenosum
- conjunctivitis
- episcleritis
- iritis
- large joint arthritis
- sacroilitis
- ankylosing spondylitis
- primary sclerosing cholangitis (-> cholangiocarcxinoma)
- nutritional deficiencies
UC:
- blood tests? 5
- other investigations? 4
- FBC
- U+Es
- LFTs
- ESR
- CRP
- stool microscopy (exclude infective colitis)
- faecal calprotectin
- abdo x-ray
- endoscopy w biopsy is gold standard
nb also more likely to get toxic megacolon
UC:
- non-pharma management? 2
- pharm treatment? 3
- surgical treatment? 1
- continue smoking
- optimise nutrition (esp iron, at risk of anaemia)
- analgesia
- aminosalicylates (eg mesalazine, zine/zide suffix) = mainstay!
- steroids (often use supposotries)
(immunomodulation if resistant to above)
nb need hosp admission if severe attack
20% need surgery at some point:
- colectomy w anastamosis or variant, dpending on extent of disease