Pulsed Radiofrequency: Soothing Irritated Nerves Without Heat Damage
Radiofrequency Ablation (RFA) is a well-established interventional technique that uses thermal
energy to disrupt pain-transmitting nerves. While standard continuous RFA applies steady heat
(typically 60°C to 80°C) to cauterize sensory nerve fibers, certain nerve
structures—especially mixed nerves containing critical motor fibers—cannot be subjected
to high heat without risking nerve damage or weakness.
Pulsed Radiofrequency (PRF) offers a specialized neuromodulatory alternative that treats
hyperactive pain nerves using electric fields rather than destructive thermal heat.
Continuous vs. Pulsed Radiofrequency
The core difference between these two interventional techniques lies in how energy is delivered
to the target tissue:
-
Continuous RFA: Delivers continuous high-frequency electrical current, producing high localized heat that creates a permanent thermal lesion on small sensory nerves (such as medial branch nerves supplying arthritic facet joints).
-
Pulsed RFA: Delivers short bursts of high-voltage electrical current (typically 20-millisecond pulses) followed by long quiet phases (480 milliseconds) to allow heat to dissipate. This keeps the tissue temperature at or below 42°C—well below the threshold for thermal tissue destruction.
How Pulsed Radiofrequency Calms Nerves
Because PRF does not burn or destroy nerve tissue, its therapeutic effect relies on
neuromodulation.
The high-intensity electric fields generated around the electrode tip alter gene expression,
micro-cellular protein synthesis, and synaptic transmission within the target nerve fibers. This
“resets” hyperactive pain signaling pathways, reducing nerve hypersensitivity while
preserving the physical structure and motor function of the nerve.
Key Clinical Applications
Pulsed RF is particularly valuable for treating complex neuropathic pain conditions where nerve
destruction must be avoided:
-
Occipital Neuralgia: Soothing irritated occipital nerves at the base of the skull to relieve shooting headaches.
-
Radicular Pain (Pinched Spinal Nerves): Calming inflamed spinal nerve roots (dorsal root ganglia) in the neck or lower back without causing motor weakness in the arms or legs.
-
Peripheral Nerve Entrapments: Managing persistent nerve pain along major peripheral trunks (such as the suprascapular, intercostal, or pudendal nerves).
-
Post-Surgical Joint Pain: Treating chronic pain around major joints following prior procedures.
Because PRF leaves the nerve intact, it provides a safe, repeatable interventional option for
delicate nerve structures.
-
Book Online: Visit igeaneuro.com to request a comprehensive diagnostic consultation with our pain management team.
-
Call Our Team Today: Speak directly with our dedicated patient care coordinators at (866) 467-1770.
