23 October 2014 : Original article
Assessment of the Relation between Mean Platelet Volume, Non-Dipping Blood Pressure Pattern, and Left Ventricular Mass Index in Sustained HypertensionHamdi PusurogluAFG, Huseyin A. CakmakAEF, Mehmet ErturkCD, Ozgur AkgulBF, Emre AkkayaBF, Aydin Rodi TosuBCD, Omer CelikBCDF, Mehmet GulEF, Aydin YildirimAG
Med Sci Monit 2014; 20:2020-2026
BACKGROUND: Elevated mean platelet volume may reflect presence of active large platelets, which lead to fatal or non-fatal cardiovascular events. In recent studies, lack of nocturnal blood pressure fall was presented as an independent predictor of poor prognosis in essential hypertension. The relation of raised MPV with left ventricular hypertrophy has also been reported in hypertension. The aim of this study was to investigate the relation between MPV, non-dipping blood pressure pattern, and left ventricular mass index (LVMI) in sustained hypertension.
MATERIAL AND METHODS: A total of 2500 patients, whose ambulatory blood pressure (ABP) records had been evaluated retrospectively between January 2010 and December 2012, were included. Patients were divided into 3 groups according to their ABP values: non-dipper hypertensive (n=289), dipper hypertensive (n=255), and normotensive (n=306). The MPV levels and biochemical analyses were recorded from patient files and, LVMI were automatically calculated using a regression equation.
RESULTS: The non-dipper and dipper hypertensive groups had significantly higher MPV levels than normotensives (8.4±1 fL, 8.3±1 fL, and 8.1±0.6 fL, respectively, p<0.001). However, there was no difference among the non-dipper and dipper groups in terms of MPV level (p=0.675). Although LVMI was significantly different between non-dipper, dipper, and normotensive groups (p=0.009), no correlation was found between MPV level and LVMI in dipper and non-dipper hypertensive patients (r=–0.080, p=0.142). There was a weak correlation between MPV level and ambulatory 24-h diastolic and systolic blood pressure (r=0.076, p=0.027, and r=0.073, p=0.033, respectively).
CONCLUSIONS: We demonstrated that there was no correlation between MPV level, non-dipping pattern of blood pressure, and LVMI in sustained hypertension.
Keywords: Adult, Adolescent, Aged, 80 and over, Blood Platelets, Blood Pressure, Case-Control Studies, Heart Ventricles - anatomy & histology, Hypertension - blood, young adult
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