Electrosurgery: Electrodesiccation and Curettage

Overview / Definition Electrosurgery refers to the use of high-frequency electrical currents to perform surgical procedures. Among the techniques used in electrosurgery, electrodesiccation and curettage (ED&C) is a common method employed in dermatology for the removal of superficial skin lesions. This technique involves the desiccation of tissue using an electrical current followed by the mechanical scraping of the lesion with a curette. Epidemiology ED&C is frequently utilized in the treatment of a variety of skin conditions, particularly in outpatient dermatological settings. The procedure is most commonly performed on: Basal cell carcinoma (BCC) Seborrheic keratosis Actinic keratosis Keratoacanthoma Warts The incidence of skin cancer continues to rise, making ED&C a crucial technique in dermatology. Pathophysiology / Mechanism The mechanism of ED&C involves two main components: Electrodesiccation: The application of high-frequency electrical current to the tissue leads to thermal destruction and dehydration of the cells, resulting in tissue necrosis. Curettage: This is the physical scraping of the lesion using a curette, which helps remove the necrotic tissue and allows for better healing. Together, these processes facilitate the removal of abnormal skin while minimizing the risk of scarring. Clinical Presentation Patients who present for ED&C commonly have: Superficial lesions that are raised, pigmented, or hyperkeratotic. Lesions that may bleed or have crusting. Skin lesions that have failed other conservative treatments. It is crucial to obtain a thorough history and perform a physical examination to identify the characteristics of the lesion and ensure appropriate management. Diagnosis / Workup The diagnosis of lesions treated with ED&C is typically made through clinical examination. In some cases, a skin biopsy may be performed prior to treatment to confirm the diagnosis, especially when malignancy is suspected. Key steps in the workup include: Comprehensive