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The neurological basis and mechanisms for phantom pain are all derived from experimental theories and observations. Little is known about the true mechanisms causing phantom pain, and many theories highly overlap. Historically, phantom pains were thought to originate from neuromas located at the stump tip. [1]
In the case of hypoalgesia, a decreased response to pain would be very beneficial in a situation where an organism's life was at stake, since feeling pain would be a hindrance rather than a help. It has been well documented that fear does cause a decrease in pain response, [ 6 ] however much like the exercise induced hypoalgesia, the exact ...
Balanced anesthesia can also minimize the pain patients suffer. Pain may delay wound healing , decrease appetite, and even result in death. [ 17 ] Using the proper amount of analgesics can reduce the amount of inhalant anesthetics required and help patients reduce the pain.
These drugs also reduce pain from viruses such as shingles, phantom limb pain and post-stroke pain. [74] These mechanisms vary and in general are more effective in neuropathic pain disorders as well as complex regional pain syndrome. [75] A common anti-epileptic drug is gabapentin, and an example of an antidepressant would be amitriptyline.
Patient-controlled analgesia (PCA [1]) is any method of allowing a person in pain to administer their own pain relief. [2] The infusion is programmable by the prescriber. If it is programmed and functioning as intended, the machine is unlikely to deliver an overdose of medication. [3]
Mesencephalotomy is the damaging of the junction of the trigeminal tract and the periaqueductal gray in the brain, and has produced pain relief in a group of patients with cancer pain; but when applied to six anesthesia dolorosa patients, no pain relief was achieved, and the unpleasant sensation was in fact increased.
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Upon the unavoidable amputation of a limb, physical therapy may be introduced as an additional medical approach pre- and post-amputation to minimize phantom limb pain and limb telescoping following the surgical procedure. [13] Prior to any intervention, there must be a complete assessment of the patients' condition to identify their issues.