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The role of pulse pressure in navigating the paradigm of chronic kidney disease progression in type 2 diabetes mellitus.

Abstract：

BACKGROUND AND AIMS:Arterial stiffness is a risk factor for chronic kidney disease progression (CKD). Pulse pressure is a surrogate marker of arterial stiffness. It is unclear if pulse pressure predicts CKD progression in type 2 diabetes mellitus. METHODS:This was prospective study involving 1494 patients with estimated glomerular filtration rate (eGFR) ≥ 15 ml/min/1.73 m2. Carotid-femoral pulse wave velocity was measured using applanation tonometry. Pulse pressure was calculated as difference between systolic and diastolic blood pressures. CKD progression was defined as worsening of eGFR categories (stage 1, ≥ 90 ml/min/1.73 m2; stage 2, 60-89 ml/min/1.73 m2; stage 3a, 45-59 ml/min/1.73 m2; stage 3b, 30-44 ml/min/1.73 m2; stage 4; 15-29 ml/min/1.73 m2; and stage 5, < 15 ml/min/1.73 m2) with ≥ 25% decrease in eGFR from baseline. RESULTS:After follow-up of up to 6 years, CKD progression occurred in 33.5% of subjects. Subjects in 2nd, 3rd and 4th quartiles of peripheral pulse pressure experienced higher risk of CKD progression with unadjusted hazard ratios (HRs) 1.55 [95% confidence interval (CI) 1.13-2.11; p = 0.006], 2.58 (1.93-3.45; p < 0.001) and 3.41 (2.58-4.52; p < 0.001). In the fully adjusted model, the association for 2nd, 3rd and 4th quartiles remained with HRs 1.40 (1.02-1.93; p = 0.038), 1.87 (1.37-2.56; p < 0.001) and 1.75 (1.25-2.44; p = 0.001) respectively. Similarly, 2nd, 3rd and 4th quartiles of aortic pulse pressure were associated with higher hazards of CKD progression with HRs 1.73 (1.25-2.40; p = 0.001), 1.65 (1.18-2.29; p = 0.003) and 1.81 (1.26-2.60; p = 0.001). Increasing urinary albumin-to-creatinine ratio accounted for 44.0% of the association between peripheral pulse pressure and CKD progression. CONCLUSIONS:Individuals with high pulse pressure were more susceptible to deterioration of renal function. Pulse pressure could potentially be incorporated in clinical practice as an inexpensive and readily available biomarker of renal decline in type 2 diabetes mellitus. Graphic abstract.

journal_name

J Nephrol

journal_title

Journal of nephrology

authors

Low S,Moh A,Ang SF,Lim CL,Liu YL,Wang J,Ang K,Tang WE,Kwan PY,Lim Z,Subramaniam T,Sum CF,Lim SC

doi

10.1007/s40620-020-00954-3

subject

Has Abstract

pub_date

2021-01-25 00:00:00

eissn

1121-8428

issn

1724-6059

pii

10.1007/s40620-020-00954-3

pub_type

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The role of pulse pressure in navigating the paradigm of chronic kidney disease progression in type 2 diabetes mellitus.