L25 Accupuncture Flashcards
endogenous opioid peptide families implicated in acupuncture
Beta-endorphin Enkephalin Met-enkephalin Leu-enkephalin Dynorphin
Major neurotransmitters implicated in acupuncture analgesia
Serotonin Norepinephrine Substance P Gama-aminobutyric acid (GABA) Dopamine ACTH
PENS
Percutaneous Electrical Nerve Stimulation
- Local needles in the back
- Distant Needles in the ankles, head, wrists
- Low Frequency/High Intensity PENS for 15 min
- High Frequency/Low Intensity PENS for 15 min
Low Frequency/High intensity
2 to 15 Hz as strong as patient can tolerate (banging)
Spinal Cord – Enkephalin, Dynorphin B
Midbrain – enkephalin, Serotonin, Norepinephrine
Pituitary/Hypothal – B-endorphin, ACTH
*Effect blocked by Naloxone
*Analgesia slow onset/long duration
*Cumulative Effects
High frequency/low intensity
30 to 200 Hz just to where patient can barely feel it (Buzzing) Spinal Cord/Midbrain only– GABA Effect NOT blocked by Naloxone Analgesia fast onset/short duration Non-cumulative effects
ACUPUNCTURE NEEDLES PHYSICAL PROPERTIES
ACUPUNCTURE NEEDLES are ideal instruments due to their physical properties.
COMPOSITION: stainless steel shaft with a spiraled handle of copper, bronze, or alloy
THERMOCOUPLE EFFECT OF KELVIN-THOMAS describes a gradient along the length of a homogenous conductor with a temperature gradient produced by the ends of the conductor at different temperatures.
THE BENEDICK’S EFFECT
The current along a uniform conductor is reinforced by the electro-magnetic effect between the second (spiraled) metal of the handle in contact with the first metal of the shaft.
Typical needle is 1 to 8 cm long, 0.3-0.4mm in diameter or 28 to 26 gauge
Electrical potential is 3 microvolts, the tip at body temperature and the handle at T˚