Percutaneous Electrical Nerve Stimulation (PENS) is a therapeutic technique that involves the application of electrical currents to nerve endings through the skin using specialized needles or electrodes. It is used primarily to alleviate various types of chronic pain by stimulating the peripheral nerves.
During a PENS procedure, fine needle electrodes or surface electrodes are strategically inserted into the skin at specific points near the affected nerves or pain sites. These electrodes are then connected to a small electric stimulator that delivers electrical currents of low amplitude but high frequency.
The electrical currents generated by the stimulator induce a tingling or buzzing sensation in the targeted area, which is believed to interfere with pain signals transmitted by the nerves to the brain. This interference helps to mask or block the pain sensations, providing relief to the patient. Additionally, the electrical stimulation may also trigger the release of endorphins, which are natural pain-relieving substances produced by the body.
PENS is commonly used to treat conditions such as neuropathic pain, fibromyalgia, arthritis, and musculoskeletal pain, among others. It is typically administered by healthcare professionals, such as pain management specialists or physical therapists, in an outpatient setting.
Although generally safe, PENS is not suitable for everyone. Individuals with certain medical conditions, such as pacemakers or active skin infections, or those who are pregnant should not undergo PENS therapy. It is always important to consult with a healthcare professional before starting any new treatment.
