Related Experiment Video
Updated: Jul 9, 2025

Intraoperative Assessment of Resection Margins in Oral Cavity Cancer: This is the Way
Published on: May 10, 2021
Margin status after loop electrosurgical excision procedure (LEEP) and laser excision in patients with high-grade
Juliette Mosseri1, Louise Benoit2, Meriem Koual2
1Gynecologic and Breast Oncologic Surgery Department, Georges Pompidou European Hospital, APHP. Centre, Université de Paris, 20, rue Leblanc 75908, Paris Cedex 15, Paris, France.
Introduction:
Early management of high-grade cervical intraepithelial neoplasia is one of the key steps in cervical cancer prevention after vaccination and screening. It relies on lesion removal by surgical excision, and the French National Cancer Institute (INCa) in 2016 recommend using a loop electro excision procedure (LEEP). However, the laser excision method seems to be as effective with similar rates of negative excision margins and postoperative clearance of HPV.
Objective:
The main objective of our study was to compare the laser excision method to LEEP by evaluating the quality of the surgical margins. We also studied factors associated with the status of the margins and the depth of cones.
Methods:
We conducted a retrospective unicentric study between 2009 and 2017.
Results:
Two hundred and thirty-one patients were included: 154 laser excisions and 77 LEEP. Negative surgical margin was achieved in 69.5 % of laser excisions and 72.7 % of LEEP (p = 0.649). Concerning factors predicting margin status, only a greater cone depth was associated with negative margins (OR: 0.91 (95 %CI: 0.84, 0.89); p = 0.02). The surgical technique was not found to be associated with the status of the margins (OR: 0.85 (95 %CI: 0.46,1.56); p = 0.61). Concerning factors predicting cone depth, only the LEEP was associated with a shorter cone depth (OR: 0.24 (95 %CI: 0.08, 0.69); p 0.008). Significant results are based on univariate analysis.
Conclusion:
No difference was found between the two technics concerning the rate of negative margins. However, LEEP seems to be associated with shorter cone depth in this study.

