Article

Preoperative thrombocytosis is associated with survival after surgery for colorectal cancer.

Department of Gastroenterological Surgery, Dokkyo Medical University, Tochigi, Japan. .
Journal of Surgical Oncology (Impact Factor: 2.64). 05/2012; DOI: 10.1002/jso.23163
Source: PubMed

ABSTRACT OBJECTIVE: To evaluate the influence of preoperative thrombocytosis on survival after surgery in patients with colorectal cancer (CRC). METHODS: Four hundred fifty-three patients who had undergone CRC surgery were retrospectively identified from institutional database. On the basis of receiver operating characteristic (ROC) curve analysis, they were classified into two groups: Group A, with a preoperative platelet count of ≤300 (×10(9) /L), and Group B, with a preoperative platelet count of >300 (×10(9) /L). Uni- and multivariate analyses were performed to evaluate the relationship to overall survival. Kaplan-Meier analysis and log rank test were used to compare the survival curves between groups A and B. RESULTS: There was a significant difference in overall survival between the two groups (P = 0.007). Multivariate analysis of selected preoperative clinicolaboratory characteristics showed that overall survival was associated with the platelet count (Group A/B) (odds ratio, 1.642; 95% CI, 1.025-2.629; P = 0.039) as well as the number of tumors (1/≥2), and the serum levels of C-reactive protein (CRP) and carcinoembryonic antigen (CEA). CONCLUSION: Preoperative thrombocytosis is associated with survival after surgery in CRC patients, and is able to divide such patients into two independent groups before surgery. J. Surg. Oncol © 2012 Wiley Periodicals, Inc.

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