TENS & HVPC
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26 terms
Terms | Definitions |
|---|---|
 Electrotherapy indications | Bell's palsy |
| TENS | widely used for acute and chronic pain management |
| TENS | areas of use include: obstetrics, temporomandibular joint pain, and post-operative pain |
| TENS | the main therapeutic effects include pain relief through the gate control theory or the endogenous opiate pain control theory |
| TENS | indicated for bone fractures, during labor and delivery, bone fractures, trigeminal neuralgia, phantom pain |
| TENS | indicated for antiemetic effects (against vomiting), improved blood flow |
| Conventional TENS | Frequency : 50 - 50HZ Duration: 20 - 100 microseconds Amplitude: 10 - 30 mA |
| Acupuncture-like TENS (AL) | Frequency: 1 - 4 HZ Duration: 20 - 100 microseconds Amplitude: 30 - 80 mA |
| Pulse burst | Frequency: 70 - 100Hz/burst Duration: 40 - 75 microseconds Amplitude: 30 - 60 mA |
| Brief intense (high intensity) | Frequency: 70 - 100 Hz/burst Duration: 150 - 200 microseconds Amplitude: 30 - 60mA |
| TENS | waveform used are monophasic pulsatile current or biphasic pulsatile current with a spiked square, rectangular or sine wave form |
| TENS | electrode placement may based on sites of nerve roots, trigger points, acupuncture sites or key points of pain and sensitivity |
| TENS | net polarity is normally zero, if waveform is unbalanced, there will be accumulation of charges that will lead to skin irritation under the electrodes |
| High-voltage pulsed Current | HVPC aka high voltage pulsed galvanic current, is a twin-peak (pair of monophasic spike waveforms) monophasic pulsed current |
| HVPC | phase duration of 5 - 20 microseconds (fixed in most machines) short pulse duration (includes both spikes and the interspike interval) 100 - 200 microseconds voltage > 150 V to max of 500 V |
| HVPC | there is one large dispersive along with one, two or four active electrodes. Active electrode can be (+) or (-) based on tx goals |
| HVPC indications | wound management, pain management, soft tissue edema |
| HVPC indications | levator ani syndrome, muscle spasms, muscle weakness |
| HVPC indications | Bell's palsy (facial paralysis) |
| HVPC contraindications | cardiac pacemakers (relative contraindication), over heavy scarring tissues |
| HVPC contraindications | malignancy, over lower abdomen/uterus during pregnancy |
| HVPC contraindications | over the anterior transcervical area, over osteomyelitis, and anterior cervical region |
| HVPC wound tx | place electrode over the wound (using a warm sterile gauze and sponge) and the other over healthy skin a minimum of 5 cm from the wound itself |
| HVPC wound tx | polarity should be in reversal mode: 50 % of treatment with (-) polarity and the other 50% with (+) polarity |
| HVPC wound tx | Frequency: 30 - 200 pulse/sec Amplitude: 1 - 500 V Duration of tx: 10 - 60 minutes/session |
| HVPC wound tx | dermal wounds should be treated 5 - 7 days/week for best results |
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