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Combined use of brain natriuretic peptide and C-reactive protein for predicting cardiovascular risk in outpatients with type 2 diabetes mellitus

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Authors: Toshihiro Tsuruda, Johji Kato, Takahiro Sumi, Kazuya Mishima, Hiroyuki Masuyama, Hiroyuki Nakao, Takuroh Imamura, Tanenao Eto, Kazuo Kitamura

Published Date October 2007 Volume 2007:3(4) Pages 417 - 423
DOI: http://dx.doi.org/10.2147/VHRM.S

Toshihiro Tsuruda1, Johji Kato2, Takahiro Sumi1, Kazuya Mishima1, Hiroyuki Masuyama1, Hiroyuki Nakao3, Takuroh Imamura1, Tanenao Eto1, Kazuo Kitamura1

1Department of Internal Medicine, Circulatory and Body Fluid Regulation, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan; 2Frontier Research Center, University of Miyazaki, Miyazaki, Japan; 3Department of Public Health, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan

Abstract: Appropriate tools are necessary for predicting cardiovascular events in patients with diabetes mellitus because of their high incidence. In this study, we assessed whether a combination of brain natriuretic peptide (BNP) and C-reactive protein (CRP) measurement were useful prognosticators in patients with type 2 diabetes mellitus. One hundred and nine patients with type 2 diabetes mellitus, aged 52 to 93 years, were examined at outpatient clinics for blood, urinary samples, and echocardiography. They were then followed prospectively. During the average follow-up period of 30 months (range, 3 to 37), 15 patients (14%) had cardiovascular events: This was the first event in 5 patients and a recurrence in 10. Cox regression analysis showed that the past event (hazard ratio [HR] 4.819 [95% confidence interval (CI): 1.299–17.881]; p = 0.019) and plasma BNP level (HR 1.007 [95% CI: 1.002–1.012]; p = 0.010] were independently significant factors for the cardiovascular events during the follow-up period. Patients with plasma BNP ≥53 pg/mL and CRP ≥0.95 mg/dL demonstrated the highest incidence in cardiovascular event, compared to those categorized into either or both low levels of BNP and CRP. This study suggests that combination of plasma BNP and CRP measurement provides the additive prognostic information of cardiovascular events in patients with type 2 diabetes mellitus.

Keywords: diabetes mellitus; natriuretic peptide; inflammation; mortality and morbidity








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