Pulsed radiofrequency
Pulsed Radiofrequency[edit | edit source]
Pulsed Radiofrequency (PRF) is a medical technique used primarily for the management of chronic pain. It involves the application of short bursts of radiofrequency energy to nervous tissue, which can modulate pain pathways without causing significant tissue damage. This technique is distinct from continuous radiofrequency ablation, which uses continuous heat to destroy tissue.
Mechanism of Action[edit | edit source]
Pulsed radiofrequency works by delivering high-frequency electrical currents in short bursts to the target nerve tissue. The mechanism is thought to involve the alteration of pain signal transmission by affecting the nerve's electrical properties. Unlike continuous radiofrequency, PRF does not generate enough heat to cause coagulation or destruction of the nerve tissue, making it a safer option for certain patients.
Applications[edit | edit source]
PRF is used in the treatment of various chronic pain conditions, including:
The procedure is typically performed under fluoroscopy or ultrasound guidance to ensure accurate placement of the electrode near the target nerve.
Procedure[edit | edit source]
The PRF procedure involves the following steps:
1. The patient is positioned appropriately, and the target area is cleaned and sterilized. 2. Local anesthesia is administered to minimize discomfort. 3. A needle electrode is inserted under imaging guidance to the vicinity of the target nerve. 4. The PRF generator delivers pulsed radiofrequency energy through the electrode. 5. The procedure usually lasts between 20 to 30 minutes. 6. The electrode is removed, and the patient is monitored for any immediate complications.
Advantages and Limitations[edit | edit source]
Advantages[edit | edit source]
- Minimally invasive
- Reduced risk of nerve damage compared to continuous radiofrequency
- Can be repeated if necessary
- Short recovery time
Limitations[edit | edit source]
- Not effective for all types of pain
- Temporary relief in some cases
- Requires precise technique and equipment
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