What kind of electrical currents does electrosurgery utilize?

Electrosurgery utilizes high-frequency electrical currents, which are specifically designed to produce heat through tissue interaction at the cellular level. These high-frequency currents allow for controlled tissue cutting and coagulation, making them highly effective during surgical procedures.

The high frequency contributes to less thermal spread to surrounding tissues, reducing the risk of damage to adjacent areas. This efficiency is crucial in a surgical setting to enhance precision and minimize complications. The use of high-frequency currents also enables the device to function effectively without the need for excessive power, providing a cleaner surgical field by minimizing blood loss and allowing for clearer visibility for the surgeon.

In contrast, other types of currents mentioned, such as low-frequency currents or constant direct currents, do not provide the same level of control and effectiveness for cutting and coagulating tissue. Additionally, variable alternating currents do not have the same targeted capabilities that high-frequency electrical currents possess. This is why electrosurgery specifically relies on high-frequency currents for its operations.