Abdominal Pain Flashcards
What are two most significant properties of pain
Site
Character
What framework do we use to ask patients about pain?
- Site- where is it?
- Onset- has it come on suddenly or gradually?
- Character- what is the pain like? Is it burning? Colicky (sharp, localised)? Aching?
- Radiation- where does it go to?
- Association- is it associated with vomiting? Fever?
- Time course- have they had that pain before?
- Exacerbating or relieving factors- what makes it better? What makes it worse?
- Severity- how bad is it e.g. /10?
- What organ structures are found at the transpyloric plane?
L1
- Pylorus of stomach
- Neck of pancreas
- Fundus of gallbladder
- Renal hilum of left kidney (right kidney is pushed down a bit by liver)
- Duodenojejunal flexure
- End of spinal cord in adult
What organ structures are found at the subcostal plane and supracristal plane respectively?
Subcostal plane- L3
- Origin of inferior mesenteric artery
Supracristal plane- L4
- Bifurcation of the aorta
Forget
Innervated by T5-T9
Pain is site if epigastrium
Midgut
Innervated by T10-T11
Pain site of umbilicus
Hindgut
Innervated by L1-L2
Pain is site of hypogastrium
Parietal vs visceral peritoneum
Parietal covers the abdominal wall anteriorily
Visceral covers organs
What nerves supply the parietal peritoneum?
Phrenic nerves that supply sensation from central tendon to diaphragm → C3, C4, C5
C3 and 5 Innervated right shoulder so patients can present with right shoulder pain when something’s wrong
Segmental innervating from T5-L2
What nerves supply visceral peritoneum
- Parasympathetic supply from vagus nerve
- Parasympathetic supply from S2-4
- Sympathetic chain goes T1-12 and L1-2
What kind of pain does inflammation cause
Constant aching pain
Made worse by movement
Persists until inflammation subsides
What pain does obstruction cause
- Colicky ‘gripping’ pain
- Fluctuates in severity
- Patient moves to try and get comfortable
- There has been prolonged obstruction of a hollow viscus that has caused distension
- This is different from ache of inflammation and isn’t colicky
- There may be impending ischaemia
What kind of pain does you find in the ureter liver biliary colic spleen kidney small or large bowel
- UreterColicky
- LiverConstant e.g. could be hepatitis or liver abscess
Colicky pain usually in tubular structures and is crampy
- Biliary-colic
Colicky e.g. stone trying to get through duct like bile duct
- SpleenConstant e.g. splenic abscess or rupture
- KidneyConstant e.g. pyelonephritis or abscess
- Small or large bowelColicky
Where does gallbladder (right hypochondriac region) pain radiate?
Through to the back and right- this happens in 50% of cases
-
Where does stomach, duodenum, pancreas (epigastrium) pain radiate?
- Straight through to back- especially because pancreas and duodenum are retroperitoneal
- People with pancreatic cancer present with back pain because tumour infiltrates posteriorly
What position do pancreatic cancer patients feel better in?
Sitting up and leaning forward, because abdominal viscera aren’t pushing against pancreas
Where does tail of pancreas (left hypochondriac region) pain radiate?
Through to the back and the left
Where does right kidney (right lumbar region) pain radiate?
In loin and radiates to groin (following ureter)
Where does small bowel, caecum, retroperitoneal structures (umbilical region) pain radiate?
Doesn’t normally radiate because it’s visceral
-
Where does left kidney (left lumbar region) pain radiate?
In loin and radiates to groin
What can people with AAA present regarding left kidney pain?
They can describe left ureteric colicky pain
Where do the lower zone organs (appendix and caecum, bladder, transverse colon, uterus, adnexae, sigmoid colon) pain radiate?
- Lower abdominal pain rarely radiates
- Pain from structures deep in pelvis is referred to lower back/perineum
General points
- Colicky abdominal pain is referred to the centre (visceral sensation)
- Pain from parietal inflammation is felt over the inflamed area (somatic sensation)
- When pain radiates it signifies other structures are becoming involved
- Small bowel pain doesn’t radiate but may move when somatic as well as visceral nerves become irritated
Appendicitis
Appendix pain central then shifts in right iliac fossa
Gradual onset no radiation
Nausea anorexia fever
Worse in movement
Appendix can be retrocaecal and pelvic if we examine their abdomen and it’s pelvic we won’t be able to feel it
Dull ache
Bowel obstruction
Central pain
Gradual,colicky
Vomiting bowels don’t open
Passing flatus relevies pain
Commonest chase if obstruction is adhesions which form after an operation ,scar tissue formation and fibrous bands,can wrap around small intestine causing closed loop obstruction,treate with ng tube to decompress it
Moderate pain
Uteric colic
Loin pain
Sudden onset,colicky radiates to groin
Vomiting
Can’t find a comfortable position
Severe pain
Biliary colic
Right upper quadrant
Sudden onset
Colicky spreads to right shoulder
Nausea indigestion after eating fatty food can be severe
Cholelithiasis
- Stone gets caught in cystic duct
- Bile can’t get in and out
- Lining of gallbladder keeps producing mucus which has nowhere to go and becomes infected
- Sometimes it can get out as pus
- Causes localised pain, not radiating- has Murphy’s sign