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Clinical significance of changes in peripheral lymphocyte count after surgery in early cervical cancer
Yoo-Young Lee1, Chel Hun Choi, Chang Ohk Sung
1Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 135-710, Korea.
Objective:
Immune competence is an important prognostic factor in cancer patients. Surgical management of cancer can cause a variety of immunological disturbances, the clinical consequences of which are still unclear.
Materials And Methods:
Patients with clinically staged cervical carcinoma (IB to IIA) who were treated at Samsung Medical Center, Seoul, Korea from 1994 to 2007 were retrospectively enrolled. We compared peri-operative peripheral lymphocyte counts, tumor-infiltrating lymphocyte scores, and survival in patients with early cervical cancer treated by abdominal type III radical hysterectomy.
Results:
The sample included 756 patients. The median follow-up was 58 months with a range of 3-181 months. There was a positive correlation between pre-operative peripheral lymphocyte counts and tumor infiltrating lymphocyte score. Pre-operative peripheral lymphocyte counts decreased significantly after surgery. In multivariate analyses for recurrence, higher pre-operative peripheral lymphocyte counts and recovery of lymphocyte counts (more than 100/μL from the pre-operative level) on post-operative day 3 were independent positive prognostic factors and LN metastasis was negatively associated with post-operative recovery of peripheral lymphocyte counts.
Conclusion:
Peripheral lymphocyte counts after cervical cancer surgery are important prognostic factors, and management aimed at minimizing immune disturbances after surgery should be assessed, especially in patients with LN metastasis.
