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KMID : 0191120140290070957
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Journal of Korean Medical Science
2014 Volume.29 No. 7 p.957 ~ p.964
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The Clinical Association of the Blood Pressure Variability with the Target Organ Damage in Hypertensive Patients with Chronic Kidney Disease
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Ryu Ji-Won
Cha Ran-Hui
Kim Dong-Kie
Lee Ju-Hyun
Yoon Sun-Ae
Ryu Dong-Ryeol
Oh Ji-Eun
Kim Se-Joong
Han Sang-Youb
Lee Eun-Young
Kim Yon-Su
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Abstract
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It is known that blood pressure variability (BPV) can independently affect target organ damage (TOD), even with normal blood pressure. There have been few studieson chronic kidney disease (CKD) patients. We evaluated the relationship between BPV and TOD in a cross-sectional, multicenter study on hypertensive CKD patients. We evaluated 1,173 patients using 24-hr ambulatory blood pressure monitoring. BPV was defined as the average real variability, with a mean value of the absolute differences between consecutive readings of systolic blood pressure. TOD was defined as left ventricular hypertrophy (LVH) (by the Romhilt-Estes score ≥4 in electrocardiography) and kidney injury (as determined from an estimated glomerular filtration rate [eGFR]<30 mL/min/1.73 m2 and proteinuria).The mean BPV of the subjects was 15.9±4.63 mmHg. BPV displayed a positive relationship with LVH in a univariate analysis and after adjustment for multi-variables (odds ratio per 1 mmHg increase in BPV: 1.053, P=0.006). In contrast, BPV had no relationship with kidney injury. These data suggest that BPV may be positively associated with LVH in hypertensive CKD patients.
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KEYWORD
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Blood Pressure Variability, Kidney Failure, Chronic, Hypertension, Hypertrophy, Left Ventricular, Target Organ Damage
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