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Analgesia and Pain Management01:25

Analgesia and Pain Management

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Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...
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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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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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Synthetic and semisynthetic opioids are pivotal in pain management and tackling opioid addiction. Semisynthetic opioids, including morphinans (morphine derivatives), oxycodone, oxymorphone, hydrocodone, and hydromorphone, have improved pharmacokinetic profiles compared to morphine. Additionally, heroin and 6-MAM (6-Monoacetylmorphine) show better CNS penetration than morphine due to heightened lipid solubility. Hydromorphone, a potent opioid, undergoes hepatic metabolism to form the active...
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Subcutaneous Trigeminal Nerve Field Stimulation for Refractory Facial Pain
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Neurotechnology for Pain.

Lee E Fisher1,2, Scott F Lempka3

  • 1Rehab Neural Engineering Labs, Department of Physical Medicine and Rehabilitation, and Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA;

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Summary
This summary is machine-generated.

Neurotechnologies using electrical stimulation offer new hope for chronic pain relief. Innovations aim to overcome adoption barriers, potentially making these treatments a first-line option for pain management.

Keywords:
chronic paindeep brain stimulationpain managementperipheral nervous systemspinal cord stimulationtranscutaneous electric nerve stimulation

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Area of Science:

  • Neurology
  • Biomedical Engineering

Background:

  • Neurotechnologies leverage electrical stimulation of the nervous system to manage pain.
  • Current adoption often positions these advanced treatments as a last resort for chronic pain conditions.

Purpose of the Study:

  • To review pain conditions treated by electrical stimulation and associated neurotechnologies.
  • To identify barriers hindering wider adoption of neurotechnological pain treatments.
  • To highlight advancements and future directions for improved neurotechnology efficacy and patient outcomes.

Main Methods:

  • Systematic review of neurotechnologies for pain management.
  • Analysis of clinical adoption trends and identified barriers.
  • Evaluation of recent design improvements and emerging technologies.

Main Results:

  • Electrical stimulation neurotechnologies are approved for various pain conditions but face limited understanding of mechanisms, inconsistent patient efficacy, and selectivity challenges.
  • Recent design enhancements and novel technologies show promise in addressing existing limitations.
  • Barriers to adoption include mechanistic uncertainty, variable patient response, and side effects.

Conclusions:

  • Neurotechnologies for pain show significant potential but require further development to overcome current limitations.
  • Addressing challenges in efficacy, selectivity, and understanding mechanisms is crucial for broader clinical adoption.
  • Future innovations may shift neurotechnologies from last-line to first-line pain management strategies.