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Serum phosphorus is related to left ventricular remodeling independent of renal function in hospitalized patients with chronic kidney disease.

Abstract：

BACKGROUND:Increasing evidence indicated that phosphorus emerged as an important cardiovascular risk factor in patients with chronic kidney disease (CKD). The fact that serum phosphorus was closely linked to vascular and valvar calcification may account for one important reason. However, left ventricular remodeling may also serve as another potential mechanism of the cardiac toxicity of phosphorus. In the present study, we evaluated the association of serum phosphorus with left ventricular remodeling. METHODS:We investigated consecutive hospitalized patients with pre-dialysis CKD, who did not have symptomatic heart failure or take any phosphorus binder or calcitriol medications. Transthoracic echocardiography was applied to assess their left ventricular remodeling indices, both structural and functional. RESULTS:The 296 study subjects (mean age 56.4years) included 169 (57.1%) men, 203 (68.6%) hypertensive patients. In addition to gender, systolic blood pressure, and estimated glomerular filtration rate, serum phosphorus was an independent determinant of left ventricular mass index (LVMI, P=0.001). Similarly, serum phosphorus was also a determinant of left ventricular end diastolic dimension (P=0.0003), but not of relative wall thickness. In multivariate logistic analyses, serum phosphorus was significantly and independently associated with the prevalence of left ventricular hypertrophy (LVH, odds ratio [OR] 2.38 for each 1mmol/L increase, 95% CI 1.20-4.75, P=0.01). Moreover, the association was only confirmatory in eccentric LVH (OR 3.01, 95% CI 1.43-6.32, P=0.003) but not in concentric LVH (1.38, 95% CI, 0.54-3.49, P=0.50). CONCLUSION:Serum phosphorus was significantly and independently associated with LVMI and the prevalence of eccentric LVH in hospitalized patients with CKD.

journal_name

Int J Cardiol

journal_title

International journal of cardiology

authors

Zou J,Yu Y,Wu P,Lin FJ,Yao Y,Xie Y,Jiang GR

doi

10.1016/j.ijcard.2016.06.181

subject

Has Abstract

pub_date

2016-10-15 00:00:00

pages

134-40

eissn

0167-5273

issn

1874-1754

pii

S0167-5273(16)31181-0

journal_volume

221

pub_type

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Serum phosphorus is related to left ventricular remodeling independent of renal function in hospitalized patients with chronic kidney disease.