The Relationship Between Parametrial Involvement and Parametrial Tissue Removed in Radical Surgery in Early-Stage Cervical Cancer

Background: The study aims to evaluate the effect of parametrial dimensions on the prognosis of cases who underwent type 3 radical hysterectomy or radical trachelectomy in early-stage cervical cancer (stage I - IIa). Methods: Medical reports of patients with early-stage cervical cancer who have undergone surgery between 1998 and 2020 in Akdeniz University Faculty of Medicine Gynecological Oncology Clinic were reviewed retrospectively. A total of 292 cases were identified and included in the study. Demographic characteristics, preoperative examination findings, operation records, and pathology results of the cases were reviewed. Results: Parametrial involvement was found histopathologically negative in 244 out of 292 patients included in our study, the remaining 48 (16.4%) patients were found to be positive. The mean length of the right and left parametrium in the group with negative parametrium invasion, who had an average follow-up of 131.2 (0.57 - 268.2) months, was 3 cm, while the mean volume of the right and left parametrium was 7.2 (0.52 - 32) cm(3) and 6 (0.48 - 34) cm(3), respectively. On the other hand, the mean length of the right and left parametrium was 3 (1.5 - 5.5) cm and 3 (1.4 - 7) cm, respectively, while the mean volume of the right parametrium was 5.55 (1.37 - 22) cm(3), and the mean volume of the left parametrium was 7.5 (1.35 - 24) cm(3) in 48 patients with positive parametrial invasion. No statistically significant difference was detected between the two groups when compared in terms of parametrial sizes and volumes (P values of 0.061, 0.262, 0.391, and 0.468, respectively). Conclusions: Radical surgical approach is necessary to obtain a tumor-free surgical margin in the surgical treatment of early cervical cancer, but the complications leading to morbidity and mortality are also increasing with this radicality. For this reason, we consider that it is important to adapt the dimensions of the removed parametrium according to the factors affecting recurrence in cervical cancer to obtain more appropriate surgical margins with the least complications.