Microalbuminuria, but not reduced eGFR, is associated with cardiovascular subclinical organ damage in type 2 diabetes - 07/02/14
, F.H. Nystrom c, d, T. Länne c, J. Engvall c, e, C.J. Östgren c
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Abstract |
Aim |
This study explored the association between reduced estimated glomerular filtration rate (eGFR) and microalbuminuria vs. subclinical organ damage in patients with type 2 diabetes.
Methods |
Data from middle-aged patients with type 2 diabetes (n=706) treated in primary care were analyzed for microalbuminura, defined as a urinary albumin/creatinine ratio (uACR)≥3.0mmol/mol, and reduced eGFR, defined as<60mL/min/1.73m2, in relation to blood pressure, pulse wave velocity (PWV), left ventricular mass index (LVMI), and carotid intima–media thickness (IMT) and lumen diameter (LD).
Results |
Patients with microalbuminuria had significantly higher 24-h ambulatory systolic blood pressure (ASBP) compared with subjects with uACR<3mg/mmol: 137 vs. 128mmHg (P<0.001). There were no differences in ASBP in patients with eGFR<60mL/min/1.73m2. However, patients with vs. without microalbuminuria had increased PWV (11.4 vs. 10.1m/s; P<0.001), LVMI (134.4 vs. 118.6g/m2; P<0.001), LD (7.01±0.93 vs. 6.46±0.74mm; P<0.001) and IMT (0.78 vs. 0.74mm; P=0.047), respectively. The associations between uACR vs. PWV and LVMI were more robust after adjusting for age, diabetes duration, ASBP, HbA1c, LDL-cholesterol, and antihypertensive and lipid-lowering therapy compared with uACR vs. IMT. There were no statistically significant differences in PWV, LVMI or IMT between patients with reduced (<60mL/min/1.73m2) vs. normal eGFR.
Conclusion |
Levels of urinary albumin excretion, but not reduced eGFR, were associated with increased arterial stiffness, left ventricular mass and atherosclerosis in patients with type 2 diabetes.
Il testo completo di questo articolo è disponibile in PDF.Keywords : Albuminuria, GFR, Cardiovascular disease markers, Atherosclerosis, Type 2 diabetes
Abbreviations : ACE, ADA, ARB, BMI, CARDIPP, CG, CKD, CVD, DBP, eGFR, IMT, KDOQI, MDRD, LD, LVH, LVMI, OAD, PWV, RAAS, ASBP, SBP, SD, uACR
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Vol 40 - N° 1
P. 49-55 - febbraio 2014 Ritorno al numero
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