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:8/22/2014)... somatic mutation at amino acid 918 in the RET ... cell lung cancer (SCLC) tumors and enforced expression of ... signaling and cell growth. , SCLC is a highly ... lung cancers and is strongly associated with tobacco smoking. ... examined for genomic alterations and targeted therapies are approved ...
(Date:8/22/2014)... Restore My Vision Today , a ... to help people discover how they can get rid ... instead improving their eyesight naturally has caught the attention ... “There’s a reason why the glasses and contacts industry ... people just assume that it’s their only option to ...
(Date:8/22/2014)... Mueller Sports Medicine is excited to ... new product that provides non-drug instant relief for plantar ... you heal. The package includes 7 days of relief, ... – it is not kinesiology tape. It’s made in ... for Plantar Fasciitis is a breakthrough in the ...
(Date:8/22/2014)... News) -- Back-to-school time provides an opportunity for parents ... family schedules, an expert suggests. "Forget New Year,s ... also be the start of a new fitness and ... kinesiology at the University of the Sciences in Philadelphia, ... extracurricular activities likely to build up, "it,s important for ...
(Date:8/22/2014)... CLEVELAND Renal artery stenting to open blockages ... have historically been excluded from modern clinical trials, ... e-published in Catheterization and Cardiovascular Interventions ... Interventions (SCAI). , University Hospitals Case Medical Center,s ... and Professor of Medicine, Case Western Reserve University ...
Breaking Medicine News(10 mins):Health News:Novel oncogenic RET mutation found in small cell lung cancer 2Health News:Restore My Vision Today: Review Exposes Natural Eye Restoration Guide by Dr. Sen and Dr. Samantha Pearson 2Health News:Mueller Introduces FasciaDerm® PFTape™ System for Plantar Fasciitis 2Health News:With Kids in School, Parents Can Work Out 2Health News:UH Case Medical Center's Dr. Parikh authors SCAI paper on renal artery stenosis treatment 2Health News:UH Case Medical Center's Dr. Parikh authors SCAI paper on renal artery stenosis treatment 3
... have developed a Vitamin D pill that could give a ... of prostrate cancer when given along with chemotherapy drugs. ... lived for an average of an extra nine months longer ... edition of BBC News. ,The pill delivers ...
... transplantation—including the psychological and ethical aspects// of the controversial ... of England now endorses moving cautiously forward in performing ... the Jan. 27 issue of Transplantation. ,In ... that facial transplantation should not be attempted until further ...
... new study by researchers at the Harvard School of ... United States //has resulted in a net savings of ... benefits associated with avoided fear and suffering. This first ... vaccination appears as part of a special issue on ...
... gamblers in Britain. A study reveals// that Englishmen prefer to ... fruits. ,On an average, ?800 per year ... Online gambling has also increased the number of gamblers over ... (BMA) has expressed its apprehensions and fears about teenagers getting ...
... pressure in the arteries. High blood pressure (hypertension) //is often ... for years without knowing it. ,A person is ... is around 120/80. Canadians regard blood pressure with systolic reading ... and 89 as high-normal blood pressure. ,Approx. 2.5 ...
... Hospitals, one of the largest eye care hospital networks in ... seven more in the offing. ,The Chennai facility ... prominent ophthalmic surgeon and managing director of Prems' Eye Clinic. ... ,The Vasan Eye Care Group has earmarked a Rs.450 million ...
Cached Medicine News:Health News:Royal College Issues Revised Guidelines for Face Transplantation 2Health News:Royal College Issues Revised Guidelines for Face Transplantation 3Health News:Billions of Dollars Saved in U.S. By Polio Vaccination 2Health News:Slightly High Blood Pressure is Also Hazardous 2
Other medicine definitionOther Tags