36 – Acupuncture for Pain Flashcards

1
Q

What is acupuncture?

A
  • Act of placing a solid needle into a body at specific points to affect a response
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2
Q

Acupuncture points

A
  • Lie along meridians (aka channels)
  • Located by anatomical description and body measurements (‘cun’: width of 2nd last rib of the animal you are working on)
  • Largely transposed from human acupuncture maps
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3
Q

Traditional Chinese veterinary medicine (TCVM) theory

A
  • Focuses on flow of Qi (energy of life)
  • Qi flows along meridians
    o Meridians on body surfaces are connected with inner organs
  • Blockage of Qi results in disease and discomfort
  • *manipulation of Qi achieved by acupuncture along meridians
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4
Q

Acupuncture meridians

A
  • Pathways along which Qi and blood circulate
  • Connect internal organs with external body
  • Maintain harmony and equilibrium due to smooth Qi flow
  • 12 parried meridians corresponding to 12 organs (6 Yin, 6 Yang)
  • 2 additional non-paired meridians: governor vessel (dorsal midline) and conception vessel (ventral midline)
  • *used for diagnosis and treatment
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5
Q

Acupuncture points in TCVM

A
  • Specific points along meridians
  • Different types of points
  • Some ‘special’ points lie outside meridians (usually species specific)
  • *TCVM utilizes Diagnostic Acupuncture Point Exam (“DAPE”)
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6
Q

Yin and Yang in TCVM

A
  • Theory: homeostasis between internal and external state
  • Opposite and interdependent
  • Yin: fluids including blood
    o ‘cold, dark, SOLID, heart, spleen, lungs, kidney
  • Yang: nourishment an metabolism (Qi)
    o Light, HOLLOW, SI, stomach, LI
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7
Q

What is the 5 element theory in TCVM?

A
  • Categorize organs, tissues, senses and emotions into a ‘SOMA’
    1. Earth
    1. Water
    1. Fire
    1. Wood
    1. Metal
  • Ex. bomb dog: metal and fire
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8
Q

TCVM diagnosis

A
  • DAPE exam
  • Yin and Yang theory
  • 5 element theory
  • *unique treatment regime developed
  • *most combine it with Chinese Herbal Therapy
  • Might see in small animals: tongue (each area represents a certain meridian) diagnosis and pulse examination (people)
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9
Q

Western theory intro

A
  • Incompatible with TCVM system
  • Requirement for measurable outcomes
  • *Acupuncture proven to influence somato-motor and sensory nerve system
  • May (and doss) influence neuro-humoral pathways with CNS
  • “neuromodulation” theory
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10
Q

Where are many acupuncture points in the Western Theory located?

A
  • Where nerve bundles penetrate the fascia
  • In close proximity to major blood vessels, surrounded by small nerve bundles (NAV bundle)
  • At motor points, where nerves enter or exit muscle
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11
Q

Needle insertion results in

A
  • Microtrauma and neurovascular reactions
    o Release of substance P and histamine
  • Stimulates ascending influences on CNS
  • Stimulates descending changes (ex. axon reflex)
    o Humans and animals with on hair may feel warmth and have a red flare around needle
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12
Q

What are local effects of needle insertion? (western theory)

A
  • Capillary dilation and immune activation
  • Tissue repair activation
  • Local and supraspinal control
    o Reduce inflammation
    o Normalize circulation
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13
Q

What are the systemic effects of needle insertion? (western theory)

A
  • Insertion and manipulation influences myelinated A-beta fibers and unmyelinated C fibers
  • Effect on pain perception/modulation
  • Release of met-enkephalin, B-endorphin, dynorphins
  • Increased serotonin levels
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14
Q

Western theory: gate theory

A
  • Acupuncture acts at several levels to modulate peripheral and CNS response to painful stimulus
  • ‘gate is closed’=dampening of pain signals to the CNS
    o ‘also push gate shut from above’
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15
Q

Acupuncture end result

A
  • Pain relief, decreased inflammation
  • Modification of other neuro-humoral pathways?
  • Modification of organ function?
  • *could it be useful in other ‘states’ and not just pain states
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16
Q

What are the different acupuncture techniques?

A
  • *Dry needling: TRUE
  • *Electroacupuncture: TRUE
  • Para-acupuncture techniques
    o Acupoint injection
    o Moxibustion
    o Laser
17
Q

Dry needling

A
  • Placed at certain points chosen after general physical, lameness evaluation, diagnostic acupuncture point exam +/- TCVM
  • Needles left in place for 10-30 mins
  • Needle manipulation (ex. twisting, set depth)
18
Q

Electroacupuncture

A
  • Needles placed and low power, variable frequency current applied between needles with electro stimulator
  • *electrostimulation for 15-120mins
    o Hard to imagine it stands still or 2 hrs
  • Enhances effect
    o Especially pain relief?
19
Q

Acupoint injection

A
  • Hypodermic needles placed at acupuncture points and a substance injected
    o Saline (aquapuncture) mixed with Vitamin B12 solution
    o Low dose drug (pharmacopuncture)
  • Enhance, prolong effect of acupuncture
  • Reduce effective dose, risk of adverse effects of some drugs?
20
Q

Moxibustion

A
  • Needles placed at acupunctures points
  • Moxa (dried leaves of ‘mugwort’) placed on needle and ignited
  • Some burn moxa sticks over acupuncture points w/o needles
  • Heat may enhance acupuncture effect?
21
Q

Laser

A
  • Low energy laser used on acupuncture points (LLLT)
  • Non-invasive, easier and faster than conventional needling
  • Very popular for athletic horses with muscle soreness and stiffness (not just at acupuncture points)
22
Q

What are some acupuncture complications in horses (large animals)?

A
  • *Adverse behaviour
  • Broken needles (put in large muscles)
  • Infection (rarely!)
23
Q

What are some acupuncture complications in small animals?

A
  • *Ingestion of needles
  • Pneumothorax (if doing points along the chest, usually not a huge problem)
  • Broken needles
  • Infection
24
Q

What are some common painful conditions treated with acupuncture?

A
  • *Back, neck pain (large and small animals)
  • Adjunctive therapy in rehab
  • Acute lameness
  • Chronic lameness
  • Post surgical pain
  • Colic pain in horses
25
Q

What is good scientific evidence?

A
  • Randomized, controlled, blinded
  • *adequate numbers
  • Study can be independently replicated
26
Q

What is the take home message about evidence-based acupuncture?

A
  • Some evidence to help alleviate pain in horses and small animals (especially soft tissue pain)
  • Little or NO good evidence that it is helpful in disease or conditions for which it is routinely prescribed in equine or small animal practice
  • Much more research needed!
  • *do not employ it w/o a thorough physical exam and appropriate imaging to arrive at a diagnosis