Pain Flashcards
(15 cards)
Why is pain different?
§ Has an urgent quality
§ Protective
§ Very slow adaptation
§ Poor localisation
§ Can be controlled
§ There are often after-effect
What is peripheral sensitisation
Peripheral sensitisation happens when an injury triggers the release of chemicals, making the area more sensitive to pain.
How can peripheral sensitisation be managed?
Non-steroidal anti-inflammatory drugs (NSAIDs), like aspirin and ibuprofen, can help reduce this type of pain by blocking some of the chemicals in the inflammatory soup, thereby lowering the pain sensitivity.
What is central sensitisation?
which is when the central nervous system (like the spinal cord and brain) becomes more sensitive to pain after repeated stimulation.
What is the wind up effect?
This repeated stimulation leads to a “wind-up,” where more pain signals (action potentials) are sent each time the pain fiber is activated. This makes the spinal cord more responsive to pain over time.
What are the effects on pain sensitivity?
Central sensitization leads to secondary hyperalgesia (increased sensitivity to pain around the injured area) and allodynia (pain from things that wouldn’t normally hurt, like a light touch).
What are the 4 different types of pain?
- Acute pain
- Chronic pain
- Augmented pain
- Psychogenic pain
What is acute pain?
Quick & treatable
What is chronic pain?
Lasts longer and harder to treat
What is augmented pain?
includes conditions where sensitivity to pain is increased.
What is psychogenic pain?
occurs without physical damage but is still felt by the person.
What are the different types of augmented pain? (enhanced pain sensitivity?
Allodynia: Pain from something that doesn’t usually hurt (e.g., light touch).
Hyperalgesia: Extra sensitivity to things that normally hurt.
Neurogenic/Neuropathic Pain: Pain from nerve damage (e.g., from diabetes, stroke). It’s intense, chronic, and tough to treat.
Phantom Limb Pain: Pain felt in a limb that has been amputated.
What is visceral pain?
deep, aching pain from organs
What is referred pain?
is when pain is felt in a different location due to shared nerve pathways.
What is an example of referred pain?
Pain from a heart attack might be felt in the left arm.