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  • Title: Pretreatment serum hemoglobin level as a predictive factor of response to neoadjuvant chemotherapy in patients with locally advanced squamous cervical carcinoma: a preliminary report.
    Author: Fuso L, Mazzola S, Marocco F, Ferrero A, Dompè D, Carus AP, Zola P.
    Journal: Gynecol Oncol; 2005 Dec; 99(3 Suppl 1):S187-91. PubMed ID: 16185756.
    Abstract:
    OBJECTIVE: The aim of this study was to evaluate the predictive value of pretreatment serum hemoglobin level (Hb) together with a series of clinical and pathological variables available before neoadjuvant chemotherapy in locally advanced squamous cervical cancer. METHODS: The influence on response to neoadjuvant chemotherapy of a series of pretreatment clinico-pathological features: hemoglobin level at diagnosis, age, parity, menopausal status, body mass index, clinical stage, tumor diameter, and nuclear grading were analyzed on 73 patients with locally advanced cervical cancer treated with platinum-based neoadjuvant chemotherapy followed by radical surgery. The relationships between pretreatment variables and response to chemotherapy were assessed in univariate and multivariate settings. A univariate and multivariate logistic regression model was adapted to predict an "optimal" response (pathological complete response or more than 50% reduction in tumoral diameter) or "sub-optimal" response (<50% reduction in tumoral diameter). RESULTS: Seventy-three patients-clinical stage: Ib2: 29 (39.7%) IIa: 22 (30.1%) IIb: 22 (30.1%)-received 3 cycles of platinum-based neoadjuvant chemotherapy followed by type III radical hysterectomy. A complete response to neoadjuvant chemotherapy was significantly associated with higher level of pretreatment hemoglobin (mean 14.0 mg/dl) compared to patients with > or =50% response (12.7 mg/dl) or <50% (11.9 mg/dl) (P = 0.002). At multivariate analysis, Hb level was found to be the most powerful and significantly related factor to response to neoadjuvant chemotherapy. A hemoglobin threshold of 12 mg/dl was able to distinguish between patients-with > or =12 mg/dl-at higher probability to respond to neoadjuvant chemotherapy from the ones at lower probability (hemoglobin level under 12 mg/dl). Patients with a complete response to chemotherapy had a 100% survival compared to 93.1% and 53.8% for patients with responses > or =50% and <50% respectively (P = 0.0001). Patients with a pretreatment hemoglobin level of > or =12 mg/dl showed a survival of 87% compared to 63% for patients with a lower hemoglobin level (P = 0.008). CONCLUSIONS: Pretreatment Hb level showed a prognostic and independent predictive value for response to neoadjuvant chemotherapy in locally advanced cervical cancer. In our preliminary report, performed on a limited sample, a threshold of 12 mg/dl seems to be helpful to distinguish between "optimal" and "non-optimal" response.
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