Clinical implication of surgically treated early-stage cervical cancer with multiple high-risk factors
Journal of Gynecologic Oncology 2015³â 26±Ç 1È£ p.3 ~ p.11
(Matsuo Koji) - University of Southern California Los Angeles County Medical Center Department of Obstetrics and Gynecology
(Mabuchi Seiji) - Japan Osaka University Graduate School of Medicine Department of Obstetrics and Gynecology
(Okazawa Mika) - Osaka Medical Center for Cancer and Cardiovascular Diseases Department of Gynecology
(Kawano Mahiru) - Osaka University Graduate School of Medicine Department of Obstetrics and Gynecology
(Kuroda Hiromasa) - Osaka University Graduate School of Medicine Department of Obstetrics and Gynecology
(Kamiura Shoji) - Osaka Medical Center for Cancer and Cardiovascular Diseases Department of Gynecology
Abstract
Objective: Presence of high-risk factor in cervical cancer is known to be associated with decreased survival outcomes. However, the significance of multiple high-risk factors in early-stage cervical cancer related to survival outcomes, recurrence patterns, and treatment implications is not well elucidated.
Methods: A retrospective study was conducted for surgically treated cervical cancer patients (stage IA2-IIB, n=540). Surgical-pathological risk factors were examined and tumors expressing ¡Ã1 high-risk factors (nodal metastasis, parametrial involvement, or positive surgical margin) were eligible for analysis (n=177, 32.8%). Survival analysis was performed based on the number of high-risk factors and the type of adjuvant therapy.
Results: There were 68 cases (38.4%) expressed multiple high-risk factors (2 high-risk factors: n=58, 32.8%; 3 high-risk factors: n=10, 5.6%). Multiple high-risk factors remained an independent prognosticator for decreased survival outcomes after controlling for age, histology, stage, and treatment type (disease-free survival: hazard ratio [HR], 2.34; p=0.002; overall survival: HR, 2.32; p=0.007). Postoperatively, 101 cases (57.1%) received concurrent chemoradiotherapy (CCRT) and 76 cases (42.9%) received radiotherapy (RT) alone. CCRT was beneficial in single high-risk factor cases: HRs for CCRT over RT alone for cumulative risk of locoregional and distant recurrence, 0.27 (p=0.022) and 0.27 (p=0.005), respectively. However, tumor expressing multiple high-risk factors completely offset the benefit of CCRT over RT alone for the risk of distant recurrence: HR for locoregional and distant recurrence, 0.31 (p=0.071) and 0.99 (p=0.980), respectively.
Conclusion: Special consideration for the significance of multiple high-risk factors merits further investigation in the management of surgically treated early-stage cervical cancer.
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Combined Modality Therapy, Neoplasm Recurrence, Local, Retrospective Studies, Risk Factors, Survival Analysis, Uterine Cervical Neoplasms
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Multiple high-risk factors remained an independent prognosticator for decreased survival outcomes; Tumor expressing multiple high-risk factors completely offset the benefit of CCRT over RT alone for the risk of distant recurrence: HR for locoregional and distant recurrence, 0.31 (p=0.071) and 0.99 (p=0.980), respectively.