L2: Understanding abdominal pain: Flashcards
3 types of abdominal pain
visceral
parietal
referred
what is visceral pain
sensory fibres from the bowel/ organs/ mesentery conveying pain to the brain with mechanical/ chemical or thermal stimuli
what pattern does visceral pain follow
embryological distribution of organs
description of visceral pain (5)
- non specific
- poorly localised
- ache or dull pain
- gradual onset
- usually midline
foregut=
oesophagus to second part of duodenum
midgut=
second part of duodenum to splenic flexure
hindgut=
splenic flexture to rectum
parietal pain=
sensory nerve fibres in the parietal peritoneum
what does parietal pain localise
the organ underneath
what pattern does parietal pain follow
dermatological
describe parietal pain
- localising pain
- sharp pain
- peritonitic
- worse by movement
what pattern does radiation of pain take
from visceral innervation to parietal innervation
epigastrium–>
foregut
periumbilical –>
midgut
hypogastrium–>
hindgut
foregut -> RUQ=
cholecystitis
foregut ->back=
pancreatitis
midgut -> RIF =
appendicitis
midgut -> lower=
meckels diverticulitis
forgut -> lower right
perforated duodenal ulcer
what is referred pain
pain originated from one source felt at another site
where is irritation to the diaphragm (e.g by gallbladder) felt
scapular/ shoulder tip area (C3,C4,C5 keeps the diaphragm alive)
acute of sudden causes of pain (5)
torsion perforation ruptured AAA ischaemia obstruction
few days onset of pain (2)
- inflammation (cholecystitis, appendicitis, diverticulitis)
- obstruction
2 causes of chronic relapses of pain
- exacerbation of Crohn’s disease
- recurrent small bowel obstruction
colicky pain=
obstruction