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Prognostic Value of Severe Lymphopenia During Pelvic Concurrent Chemoradiotherapy in Cervical Cancer
Oyeon Cho1, Mison Chun2, Suk-Joon Chang3
1Department of Radiation Oncology, Ajou University School of Medicine, Suwon, Republic of Korea.
Aim:
To investigate whether common terminology criteria for adverse events (CTCAE) grade 4 lymphopenia (<200 cells/μl) during concurrent chemoradiotherapy (CCRT) is relevant to poor survival.
Patients And Methods:
We analyzed 124 patients with newly diagnosed Federation of Gynecology and Obstetrics (FIGO) stage I-III cervical cancer who received weekly cisplatin-based CCRT and brachytherapy using Kaplan-Meier curves and the Cox proportional hazard models.
Results:
Grade 4 lymphopenia significantly predicted disease-specific survival (DSS) and progression-free survival (PFS) (adjusted hazard ratio (95% confidence interval (CI))=3.6 (1.37-9.44), p=0.009 and 3.28 (1.27-8.48), p=0.014, respectively). The 5-year DSS and 3-year PFS were significantly higher among patients with grade 2-3 lymphopenia (≥200 cells/μl) than among those with grade 4 lymphopenia (84.8% vs. 50.4%, p<0.001, and 80.7% vs. 50%, p=0.002, respectively).
Conclusion:
Severe lymphopenia during CCRT could predict poor survival.
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