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Related Concept Videos

Somatosensation01:33

Somatosensation

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The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
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Pain01:20

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Pain serves as a critical warning signal that alerts the body to potential or actual harm. When mechanical pressure on the skin is intense, such as from a sharp pinch, the sensation transitions from touch to pain. Similarly, extreme temperatures, like a hot pot handle, convert the sensation of heat into pain. Pain can also result from overstimulation of other senses, such as blinding light, loud noise, or the intense heat from habañero peppers. This ability to sense pain is essential for...
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Nociception01:44

Nociception

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Nociception—the ability to feel pain—is essential for an organism’s survival and overall well-being. Noxious stimuli such as piercing pain from a sharp object, heat from an open flame, or contact with corrosive chemicals are first detected by sensory receptors, called nociceptors, located on nerve endings. Nociceptors express ion channels that convert noxious stimuli into electrical signals. When these signals reach the brain via sensory neurons, they are perceived as pain.
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Can neural blocks prevent phantom limb pain?

Battista Borghi1, Marco D'Addabbo, Raffaele Borghi

  • 1Research Unit of Anesthesia & Intensive Care, Department of Biomedical & Neuromotor Sciences, Rizzoli Orthopedic Institute, University of Bologna, Bologna, Italy.

Pain Management
|October 11, 2014
PubMed
Summary

Prolonged peripheral nerve blocks up to 30 days post-amputation show promise in treating phantom limb pain and preventing its chronic development. This approach may offer a new option for amputees suffering from debilitating phantom limb syndrome (PLS).

Keywords:
continuous nerve blockslimp amputationphantom limb painphantom limb sensationsphantom pain managementprolonged nerve blocks

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Area of Science:

  • Pain Medicine
  • Neurology
  • Surgical Innovation

Background:

  • Phantom limb syndrome (PLS) affects many amputees, causing stump and phantom limb pain, significantly impacting quality of life.
  • Standard therapies for PLS demonstrate limited efficacy, necessitating novel treatment strategies.
  • Current nerve block techniques are insufficient for preventing long-term PLS development.

Purpose of the Study:

  • To investigate the potential of ambulatory prolonged peripheral nerve blocks in managing phantom limb pain.
  • To evaluate the efficacy of extended nerve blocks in preventing the development of PLS and chronic pain post-amputation.

Main Methods:

  • Review of recent studies on nerve block efficacy for PLS treatment and prevention.
  • Analysis of ambulatory prolonged peripheral nerve block protocols (up to 30 days post-amputation).

Main Results:

  • Short-term epidural and peripheral blocks (≤3 days) only alleviate acute post-amputation pain.
  • Prolonged ambulatory peripheral nerve blocks (up to 30 days) show potential in treating phantom pain.
  • Extended nerve blocks may prevent the onset of PLS and chronic pain.

Conclusions:

  • Ambulatory prolonged peripheral nerve blocks represent a promising new therapeutic option for phantom limb pain.
  • This approach could be crucial in preventing the long-term sequelae of phantom limb syndrome in amputees.
  • Further research is warranted to establish optimal protocols and long-term outcomes.