J Gynecol Oncol.  2014 Oct;25(4):293-300. 10.3802/jgo.2014.25.4.293.

Analysis of treatment modalities and prognosis on microinvasive cervical cancer: a 10-year cohort study in China

• Qian Q
• Yang J
• Cao D
• You Y
• Chen J
• Shen K

• KMID: 2130117
• DOI: http://doi.org/10.3802/jgo.2014.25.4.293

Abstract

OBJECTIVE
To explore appropriate treatment modality of microinvasive cervical cancer (MIC) and to analyze prognosis and risk factors of recurrence.
METHODS
A cohort of 324 Chinese patients with MIC diagnosed and treated at Peking Union Medical College Hospital was retrospectively reviewed. Demographic features, treatment modalities, pathologic parameters, risk factors of residual disease, survival and risk factors of recurrence were analyzed.
RESULTS
Of all patients, 280 cases were staged IA1 and 44 cases staged IA2 MIC. Twenty-five cases (7.7%) were found to have lympho-vascular space involvement (LVSI), but no parametrial involvement or ovarian metastasis was detected. Only one staged IA2 patient with LVSI was found to have lymph node metastasis. 32.4% patients (82/253) had residual diseases after conization. No significant difference of LVSI, lymph node metastasis and residual disease after coniztion was found between stage IA1 and IA2 MIC patients. Multivariate logistic analysis showed positive margin was the only independent risk factor of residual disease after conization (odds ratio [OR], 4.18; p<0.001). Recurrence occurred in five cases, but no mortality was found. Progression-free survival for stage IA1 patients treated by conization or hysterectomy was similar (92.3% and 98.8%, p=0.07). Cox regression analysis revealed LVSI as an independent risk factor for recurrence in stage IA1 patients (OR, 12.14; p=0.01).
CONCLUSION
For stage IA1 patients with negative resection margin and no LVSI, conization can be an ideal treatment modality. For stage IA2 patients, more conservative surgery such as simple hysterectomy may be considered. LVSI is an independent risk factor for recurrence in patients with stage IA1 cervical cancer.

Keyword

Conization; Disease-free survival; Lymphatic metastasis; Prognosis; Uterine cervical neoplasms

MeSH Terms

Adult
Aged
Cohort Studies
Conization/methods
Female
Humans
Hysterectomy
Lymphatic Metastasis
Middle Aged
Neoplasm Invasiveness
Neoplasm Staging
Neoplasm, Residual
Prognosis
Recurrence
Retrospective Studies
Risk Factors
Treatment Outcome
Uterine Cervical Neoplasms/pathology/*surgery
Young Adult

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