Is the presence of microalbuminuria a relevant marker of kidney disease?

Abstract:

:Levels of urinary albumin excretion that are below the usual limit of detection by qualitative testing, but are above normal levels (microalbuminuria; MA), can be readily identified by simple measures, such as the urinary albumin to creatinine ratio in untimed urine samples. Such measurements, particularly when combined with assessment of estimated glomerular filtration rate (eGFR), have utility as biomarkers for enhanced risk of all-cause mortality, cardiovascular events, progressive chronic kidney disease, and end-stage renal disease in diabetic and nondiabetic subjects. However, it is controversial whether "isolated" MA (MA in the absence of a clear reduction in eGFR, urine sediment abnormalities, or structural renal disease) should be regarded as kidney disease. Such MA could also be regarded as a manifestation of a diffuse endothelial (microvascular) injury and thereby collateral kidney damage. This article reviews the current evidence concerning MA as a marker of kidney disease or kidney damage.

journal_name

Curr Hypertens Rep

authors

Glassock RJ

doi

10.1007/s11906-010-0133-3

subject

Has Abstract

pub_date

2010-10-01 00:00:00

pages

364-8

issue

5

eissn

1522-6417

issn

1534-3111

journal_volume

12

pub_type

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