Microalbuminuria in treated hypertensives: only a mirror image of cardiovascular risk? The HUNT Study, Norway

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Kurt Kvenild1, Solfrid Romundstad, Kristian Midthjell

  • 1HUNT Research Centre, Department of Public Health and General Practice, Norwegian University of Science and Technology (NTNU), Verdal, Norway. kurt.kvenild@ntnu.no

Scandinavian Journal of Primary Health Care
|August 23, 2006
PubMed

Insights

Microalbuminuria in hypertensive patients may primarily reflect uncontrolled blood pressure and existing cardiovascular disease. Its role as an independent marker warrants further investigation in routine hypertension management.

Area of Science:

  • Cardiovascular Medicine
  • Nephrology
  • Hypertension Research

Background:

  • Microalbuminuria's role as an independent predictor of cardiovascular events in hypertensive individuals is debated.
  • Understanding associations between microalbuminuria and cardiovascular risk factors is crucial for effective hypertension management.

Purpose of the Study:

  • To investigate the association between microalbuminuria and cardiovascular risk factors/disease in a large cohort of treated hypertensive patients without diabetes.
  • To determine if microalbuminuria provides additional prognostic information beyond established risk factors in this population.

Main Methods:

  • Cross-sectional study involving 5,369 treated hypertensive individuals from the HUNT Study, Norway.
  • Analysis of three morning urine samples for microalbuminuria (albumin-to-creatinine ratio).
  • Assessment of cardiovascular risk factors, cardiovascular disease, and medication history.

Main Results:

  • In men, microalbuminuria was associated with age, pulse pressure, s-creatinine, smoking history, cardiovascular disease, and antihypertensive treatment duration/group.
  • In women, associations were found with pulse pressure, smoking history, and antihypertensive treatment group.
  • These associations were not statistically significant when excluding individuals with cardiovascular disease or blood pressure > 160/90 mm Hg.

Conclusions:

  • Microalbuminuria in treated hypertensive patients appears to primarily reflect poorly controlled hypertension (BP > 160/90 mm Hg) and pre-existing cardiovascular disease.
  • The clinical utility of routine microalbuminuria testing in this population is questionable, as it may not offer independent prognostic value.
Abstract

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