Decreased mean platelet volume predicts poor prognosis in invasive bladder cancer
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Xin Wang1,*, Ming-Ming Cui1,*, Yangyang Xu2,3,*, Li Liu3, Ye Niu4, Tiemin Liu1,5, Zhi-Ping Liu6, Rui-Tao Wang1,3 and Kai-Jiang Yu7,3
1Department of Internal Medicine, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, Heilongjiang 150081, China
2Department of Urinary Surgery, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, Heilongjiang 150081, China
3Heilongjiang Academy of Medical Science, Harbin, Heilongjiang 150081, China
4Department of Geriatrics, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang 150086, China
5Division of Hypothalamic Research, Department of Internal Medicine, UT Southwestern Medical Center, Dallas, TX 75390, USA
6Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
7Department of Intensive Care Unit, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, Heilongjiang 150081, China
*These authors have contributed equally to this work
Rui-Tao Wang, email: firstname.lastname@example.org
Kai-Jiang Yu, email: email@example.com
Keywords: bladder cancer, mean platelet volume, prognosis
Received: February 13, 2017 Accepted: June 10, 2017 Published: July 12, 2017
Background: Altered mean platelet volume (MPV) is implicated in a wide range of cancers. However, the prognostic role of MPV in muscle-invasive bladder cancer (MIBC) remains largely unknown. The purpose of this study was to elucidate the predictive significance of MPV in MIBC.
Method: The retrospective study included 218 consecutive MIBC patients between January 2009 and December 2009. The relationships between MPV and clinicopathological characteristics were analyzed. Kaplan-Meier method and Cox regression were used to evaluate the prognostic impact of MPV.
Result: Of the 218 patients, low MPV levels were detected in 141 (64.7 %) patients. Reduced MPV was associated with T stage and histology grade (p < 0.05). In the Kaplan-Meier analysis, decreased MPV was significantly associated with a poorer overall survival (p = 0.007). In the multivariate Cox model, decreased MPV was an independent prognostic index for overall survival (HR=2.023, 95% CI=1.050-3.897, p = 0.025).
Conclusion: MPV is easily available in routine blood test. Our results demonstrated that reduced MPV could be regarded as a potential prognosis indicator for clinical outcome in MIBC.
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