Loop electrical excision procedure

The loop electrosurgical excision procedure (LEEP) is one of the most commonly used approaches to treat high grade cervical dysplasia (CIN II/III, HGSIL) discovered on colposcopic examination. In the UK it is known as large loop excision of the transformation zone (LLETZ). The procedure has many advantages including low cost, high success rate, and ease of use. The procedure can be done in an office setting and usually only requires a local anesthetic, though sometimes IV sedation or a general anesthetic is used.