Electrosurgery: Background, indications, and contraindications

cmishivani
cmishivani
2 min read

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Electrosurgery is a term used to describe multiple modalities that use electricity to cause thermal destruction of tissue through dehydration, coagulation, or vaporization. The two types of electrosurgery most commonly used are high-frequency electrosurgery and electrocautery.

High-frequency electrosurgery refers to four different methods: electrocoagulation, electrodesiccation, electrofulguration, and electrocution. These methods involve high-frequency alternating current, which is converted to heat by resistance as it passes through the tissue

Electrosurgery is used routinely in eye surgery to cut, coagulate, dissect, fulgurate, ablate and shrink the tissue. High frequency (100kilohertz to 5 megahertz), alternating electric current at various voltages (200–10,000 Volts) is passed through tissue to generate heat. An electrosurgical unit (ESU) consists of a generator and a handpiece with one or more electrodes. The device is controlled using a switch on the handpiece or a footswitch.

Electrosurgical generators can produce a variety of electrical waveforms. As these waveforms change, so do the corresponding tissue effects.

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