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 [[colposcopy|colposcopic]] examination. In UK it is known as "'''large loop excision of the transformation zone"''' ('''LLETZ''').<ref>{{cite web |url=http://www.webmd.com/cancer/cervical-cancer/loop-electrosurgical-excision-procedure-leep-for-abnormal-cervical-cell-changes |title=Loop electrosurgical excision procedure (LEEP) for abnormal cervical cell changes |accessdate=2007-12-28}}</ref> 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 [[anesthesia|anesthetic]], though sometimes IV sedation or a general [[anesthesia|anesthetic]] is used.<ref>{{cite web |url=http://lib-sh.lsuhsc.edu/fammed/atlases/leep/leepadv.html |title= Advantages of LEEP|accessdate=2007-12-28 |last=Mayeaux, Jr. |first= E.J. }}</ref>
