文摘
Surgical diathermy is the passage of a high-frequency alternating current through the body to produce a desirable surgical effect. Despite widespread use many surgeons and anaesthetists remain ignorant of its governing principles and associated hazards. Diathermy involves the deliberate use of electrical energy to produce tissue damage and despite the incorporation of various safety measures, injury to patients still occurs. This article explores the principles behind diathermy, its hazards, and the safety features present to reduce the risk.