Navigation Links
Phantom pain


Phantom pain, also called deafferentation pain, anesthesia dolorosa, or denervation pain, is pain that is felt in a part of the body (usually an extremity) that either no longer exists due to amputation or is insensate as a result of nerve severance. It is often described as a burning sensation, though individual accounts vary. This pain does not originate from the limb itself, as such would be impossible in these cases, but is instead the result of the brain receiving messages from the spinal cord which it interprets as pain coming from the affected limb. [1]

Contents

Physiology

Pain usually begins when nerve endings relay information to nerves, which in turn relay it to ganglia just outside the spinal vertebrae, which send it to nociceptive (pain-sensing) neurons inside the spinal cord, which finally send the information to the brain. If the nociceptive neurons cease to receive information to pass on, they will instead send the neurological equivalent of white noise, which the brain then interprets as pain. [1]

In cases in which a traumatic event causes nerve severance and also detaches the nociceptive neurons from the rest of the spinal cord, phantom pain will not develop. Some patients who do not receive adequate relief from nerve blocks, narcotic painkillers, or other methods of pain management may undergo a procedure called dorsal root entry zone (DREZ) lesioning. DREZ lesioning is a form of neurosurgery in which the wayward nociceptive neurons are destroyed. [1]

See also

References

  1. ^ a b c Vertosick, Frank T., Jr., M.D. (2000). "Slaying the Phantom", Why We Hurt: The Natural History of Pain. USA: Harcourt. ISBN 0-15-100377-7.

External links


'"/>


(Date:7/17/2019)... ... ... A new study led by researchers at the University of Pittsburgh and published ... the first time that New York’s sepsis protocols are directly responsible for the significant ... infection. It kills more than 275,000 Americans each year and leaves hundreds of thousands ...
(Date:7/17/2019)... ... July 16, 2019 , ... A medical home care program found that ... key to better care for seniors. While this may not sound surprising, a recent ... through its Brandman Research Institute (BRI) uncovered several surprising outcomes based on a simple ...
(Date:7/17/2019)... ... ... Dr. Jonathan Zaidan, MD, FACOG, President of Women’s Excellence discusses a new weight loss ... on Wednesday, July 17ths at 7pm. The show podcast will be available online ... the challenges that women face when it comes to weight loss and any health ...
(Date:7/13/2019)... ... July 13, 2019 , ... ZALO , the ... and innovative rechargeable vibrator and clitoral massager. To view the product and its accompanying ... newest and most advanced, personal massagers to people around the world,” said Mara Epstein, ...
(Date:7/13/2019)... ... July 12, 2019 , ... Ospitek Inc., a leading provider ... platform, Ospitek “View”. Ospitek has partnered with some of the country’s leading surgeons, ... solution made specifically for surgical centers, allowing them to directly engage with patients ...
Breaking Medicine News(10 mins):
Other medicine definition