Novel Technique: Radiofrequency Coagulation -- A Treatment Alternative for Early-Stage Hemorrhoids

Pravin J. Gupta, MS [Gen. Surgery]

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Radiofrequency Coagulation

The principle of radiosurgery involves using high-frequency radio waves at 4.0 MHz, delivered at low temperature through radiofrequency microfiber electrodes; the radiofrequency used is similar to the frequency of marine-band radios. The tissue, rather than the electrode, serves as the resistance; therefore, there is no heating of the radiofrequency microfiber electrode. The intracellular water in the tissue that serves as resistance to the waves vaporizes without generating any heat, therefore avoiding the potential damage that may be caused by heat, as is often encountered in electrosurgery. The latter phenomenon is known as cellular volatilization.[3] This tissue vaporization also results in significant hemostasis without actually burning the tissue. In addition, there is no danger of shock or burn injury to the patient. Most important is the fact that there is controlled and minimal lateral tissue damage because a very high-frequency radio wave (4.0 MHz) is generated at low temperatures in this technique.[4]

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