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  • Title: Utility of a simple prognostic stratification based on platelet counts and serum albumin levels in elderly patients with diffuse large B cell lymphoma.
    Author: Ochi Y, Kazuma Y, Hiramoto N, Ono Y, Yoshioka S, Yonetani N, Matsushita A, Imai Y, Hashimoto H, Ishikawa T.
    Journal: Ann Hematol; 2017 Jan; 96(1):1-8. PubMed ID: 27641425.
    Abstract:
    Few studies have examined the prognostic impact of blood markers [other than the five factors in the enhanced International Prognostic Index (NCCN-IPI)] in elderly patients with diffuse large B cell lymphoma (DLBCL). We retrospectively analyzed 391 DLBCL patients receiving rituximab plus anthracycline-containing chemotherapy to examine the prognostic impact of simple blood markers. The NCCN-IPI was more accurate for discriminating prognoses than the original IPI. Multivariate analysis identified platelet count (<100,000/μl) and albumin (<3.5 g/dl) levels as significantly associated with lower overall survival (OS), independently of the NCCN-IPI. These parameters stratified patients into three risk groups: platelet-albumin (PA) score low (platelet count ≥100,000/μl, albumin ≥3.5 g/dl, n = 243); intermediate (platelet count <100,000/μl, albumin ≥3.5 g/dl or platelet count ≥100,000/μl, albumin <3.5 g/dl, n = 125); and high (platelet count <100,000/μl, albumin <3.5 g/dl, n = 23). The 5-year OS rates were 81.5, 48.6, and 20.2 %, respectively (p < 0.001). Notably, most patients with a low platelet count (n = 30) were stratified into the high-risk subgroup, suggesting that platelet count was prognostic for high-risk patients with a dismal outcome. In elderly patients (n = 291), the prognostic value of the NCCN-IPI might be diminished because the low-risk category was excluded; however, the PA score was predictive of survival: the 5-year OS rates for PA score low (n = 171), intermediate (n = 101), and high (n = 19) groups were 77.6, 47.9, and 19.0 %, respectively (p < 0.001). Platelet count and albumin levels are useful prognostic factors, and their combined use can predict survival, even in elderly patients.
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