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The '''loop electrosurgical excision procedure''' ('''LEEP''') is one of the most commonly used approaches to treat high grade [[cervical dysplasia]] ([[Cervical intraepithelial neoplasia|CIN]] II/III, [[High grade squamous intraepithelial lesion|HGSIL]]) and early stage [[cervical cancer]] discovered on [[colposcopy|colposcopic]] examination. In the UK, it is known as '''large loop excision of the transformation zone''' ('''LLETZ'''). It is considered a type of [[Cervical conization|conization.]]<ref name="g323">{{
LEEP has many advantages including low cost and a high success rate.<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 |access-date=2016-11-27}}</ref> 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.<ref>{{cite web |url=http://lib-sh.lsuhsc.edu/fammed/atlases/leep/leepadv.html |title=Advantages of LEEP |access-date=2007-12-28 |last=Mayeaux |first=E.J. Jr.|url-status=dead |archive-url=https://web.archive.org/web/20060904092302/http://lib-sh.lsuhsc.edu/fammed/atlases/leep/leepadv.html |archive-date=2006-09-04 }}</ref> Disadvantages include reports of decreased sexual satisfaction <ref name=":0">{{cite journal |last1=Inna |first1=Namfon |last2=Phianmongkhol |first2=Yupin |last3=Charoenkwan |first3=Kittipat |date=1 March 2010 |title=Sexual function after loop electrosurgical excision procedure for cervical dysplasia |journal=J Sex Med |volume=7 |issue=3 |pages=1291–1297 |doi=10.1111/j.1743-6109.2009.01633.x |pmid=19968775}}</ref> and potential for [[preterm labor]], though a meta-analysis published in 2014 suggested that in patients with existing CIN lesions as opposed to controls, the risk is not more than their baseline risk.<ref name="pmid24785601">{{cite journal |vauthors=Conner SN, Frey HA, Cahill AG, Macones GA, Colditz GA, Tuuli MG |date=April 2014 |title=Loop electrosurgical excision procedure and risk of preterm birth: a systematic review and meta-analysis |journal=Obstetrics and Gynecology |volume=123 |issue=4 |pages=752–61 |doi=10.1097/AOG.0000000000000174 |pmc=4113318 |pmid=24785601}}</ref> Approximately 500,000 LEEP procedures are performed in the U.S. annually. <ref>{{Cite journal |
==Process==
When performing a LEEP, the [[physician]] uses a wire loop through which an [[electric current]] is passed at variable [[Power (physics)|power]] settings. Various shapes and sizes of loop can be used depending on the size and orientation of the lesion. The [[cervix|cervical]] transformation zone and [[lesion]] are excised to an adequate depth, which in most cases is at least 8 mm, and extending 4 to 5 mm beyond the lesion. A second pass with a more narrow loop can also be done to obtain an [[endocervical]] specimen for further [[histology|histologic]] evaluation.<ref>{{cite web |url=http://womenshealth.about.com/cs/surgery/a/leepprocedure.htm|title= LEEP Procedure — What is LEEP? — Loop Electrosurgical Excision Procedure|access-date=2007-12-28 |first=Tracee |last= Cornforth|publisher=About.com|archive-url=https://web.archive.org/web/20070502071454/http://womenshealth.about.com/cs/surgery/a/leepprocedure.htm|archive-date=2007-05-02}}</ref>
The LEEP technique results in some thermal artifact in all specimens obtained due to the use of electricity which simultaneously cuts and cauterizes the lesion, but this does not generally interfere with [[pathology|pathological]] interpretation provided depth is not exceeded.<ref>{{Cite journal |last1=Khunamornpong |first1=S. |last2=Raungrongmorakot |first2=K. |last3=Siriaunkgul |first3=S. |date=April 2001 |title=Loop electrosurgical excision procedure (LEEP) at Maharaj Nakorn Chiang Mai Hospital: problems in pathologic evaluation
==Complications==
Complications are less frequent in comparison to a [[cervical conization|cold-knife conization]] but can include [[infection]] and [[hemorrhage]].<ref>{{Cite journal |last1=Jiang |first1=Yanming |last2=Chen |first2=Changxian |last3=Li |first3=Li |date=2017-01-26 |title=Comparison of Cold-Knife Conization versus Loop Electrosurgical Excision for Cervical Adenocarcinoma In Situ (ACIS): A Systematic Review and Meta-Analysis |journal=PLOS ONE |volume=12 |issue=1 |pages=e0170587 |doi=10.1371/journal.pone.0170587 |issn=1932-6203 |pmc=5268480 |pmid=28125627 |bibcode=2017PLoSO..1270587J |doi-access=free }}</ref>
LEEP effectively reduces the risk of cancer developing or spreading but it causes an increased risk of [[Preterm birth|premature birth]] in future pregnancies.<ref name=":1">{{Cite journal |
Some women report a small decrease in sexual arousal and satisfaction following LEEP but there is a lack of high quality research showing how LEEP affects sexual function.<ref>{{Cite journal |
==See also==
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