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Impact of cervical excisional dimensions on endocervical margins status in adenocarcinoma in situ of the uterine cervix: A multicenter study from the FRANCOGYN group
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International audience. Objective: Excisional procedures have a central role in the management of adenocarcinoma in situ of the cervix (AIS). We aimed to evaluate the relationship between the excisional specimen dimensions and the endocervical margin status.Methods: We conducted a multicentric retrospective study in seven French centers. All cases with proven AIS on a colposcopic biopsy and undergoing an excisional procedure afterwards were included in the analysis. We evaluated the impact of excision length, along with the lateral and anteroposterior diameters on the endocervical margin status. An additional subgroup analysis of the impact of maternal age on endocervical margin status was also conducted.Results: Of the 101 cases of AIS diagnosed on initial biopsy, 95 underwent a primary excisional procedure, among which 80% (n = 76/95) had uninvolved endocervical margins and 20% (n = 19/95) had positive endocervical margins. The excisional specimen length was not significantly related to the endocervical margin status. Conversely, both lateral and antero-posterior diameters were significantly correlated with the negative endocervical margins status: OR = 1,19, 95% CI [1.03, 1.40], p = 0.025, for the lateral diameter and OR = 1.34, 95% CI [1.14, 1.64], p = 0.001 for the antero-posterior diameter. The median lateral diameter was 20 mm, IQR (18, 24) in case of endocervical negative margins vs. 18 mm IQR (15, 24) in case of positive endocervical margins (p = 0.039), and the median anteroposterior diameter was 17 mm IQR (15, 20) in case of negative endocervical margins vs 14 mm IQR (11, 15) in case of positive endocervical margins (p = 0.004), respectively. Additionally, in patients over 45 years old, endocervical margin were more likely to be positive despite similar excisional dimensions (7/17 (41%) of positive endocercival margins before 45 years old vs 12/78 (15%) after, p = 0.039) CONCLUSIONS: Endocervical margin statues were significantly related to the transverse diameters (lateral and anteroposterior diameters), but not to the excision specimen length. Reducing the excised length may lead to fewer post-procedure complications but would still allow to obtain a large proportion of negative endocervical margins.
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