Cervical intraepithelial neoplasia 2, 3 in pregnancy: time to consider loop cone excision in the first trimester of pregnancy?

Objective: To report the outcome of patients diagnosed with cervical intraepithelial neoplasia 2, 3 (CIN 2, 3) during pregnancy, who were treated by large loop excision of the transformation zone (LLETZ) in the first trimester or were followed up conservatively and treated after delivery.

Methods: Patients diagnosed with CIN 2, 3 during pregnancy who were treated with LLETZ or were conservatively followed up were included. Complications of the LLETZ, pathologic results, and pregnancy outcome of both groups were examined after delivery.

Results: Thirty-one patients were included in the study. Eighteen were conservatively followed up and 13 underwent LLETZ during the first 14 weeks of pregnancy. Four patients (12.9%) in the study group were diagnosed with invasive cervical cancer. From women who underwent LLETZ, 9 patients continued their pregnancy, 7 of which had term normal deliveries and 2 had late preterm deliveries. No complications of severe bleeding or miscarriage were reported in any of the treated patients.

Conclusions: Large loop excision of the transformation zone procedure in the first trimester of pregnancy is a safe procedure, with the advantage of treating definitively CIN 2, 3 lesions and preventing the devastating consequences of undiagnosed cervical cancer. We suggest that LLETZ should be performed more liberally in the first trimester of pregnancy.