The appendage may be gone, but the pain it once had lives on.
Phantom Limb Pain (PLP) refers to painful and lasting sensations that seem to be radiating from a limb, extremity, or other body part, that is no longer connected to the body. The suffering that PLP causes isn’t uncommon, either: between 60-80% of all amputees experience some kind of phantom sensation in a lost limb.
A mysterious condition that is still being researched
Though the exact cause of PLP is unknown, the pain is thought to be caused by signals traveling from the brain to the spinal cord getting crossed. Nerves that originally sent impulses from the limb to the brain continue to send information, until the brain “rewires” itself and adjusts to the changes in the body.
Identifying the pain and symptoms of PLP
The length of time in which this pain is felt varies from person to person, occasionally lasting only a few minutes, to hours, days, or more. Phantom Limb Pain most often occurs soon after amputation surgery, rather than limb loss due to accidents or sudden injuries. The feeling of the pain can vary from tingling or burning sensations, to itching or pressure.
Pain can arise from once normally routine activities
While the brain is adjusting to the absence of the body part, it finds new nerve pathways to send neural “information”. This can cause PLP to trigger from activities that did not involve the original limb, such as touching another part of the body, going to the bathroom, changes in outside barometric temperature, or fluctuations in blood pressure.
The pain can sometimes be avoided by identifying the activities that trigger it, which may include:
- Changes in diet
- Irregularities in the gastrointestinal system
- Smoking cigarettes, drug use, or alcohol abuse
- Spikes in blood pressure
- Sudden rises or drops in barometric pressure (such as storms, or traveling between low and high elevations)
Not necessarily always a pain
The feeling derived from a phantom limb may also be a non-painful”or even pleasurable”sensation, as the brain works to “understand” the newly-modified nervous system. Documented reports have painted the spectrum of sensation from feeling like wearing a piece of jewelry or clothing, to feeling like the limb is attached and still moving as it used to.
Treatment and living with Phantom Pain
Fortunately for most people, Phantom Limb Pain is a fleeting experience, with symptoms that disappear over time. In some cases, however, lingering pain may persist for quite a while. Some studies have reported that medications such as acetaminophen and other NSAIDs can help reduce phantom sensations, and there have been reported successes involving low-frequency stimulation of the brain with electromagnetic therapies.