gms | German Medical Science

27. Wissenschaftlicher Kongress der Deutschen Hochdruckliga

Deutsche Liga zur Bekämpfung des hohen Blutdrucks – Deutsche Hypertonie Gesellschaft e. V.

26. bis 29.11.2003, Bonn

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The MARPLE-Project: Microalbuminuria as a risk predictor in hypertension. A long-term evaluation with ramipril - Final results

MARPLE-Projekt: Mikroalbuminurie als Risikoprädiktor bei Hypertonie - Langzeitbeobachtung mit Ramipril - Endergebnisse

Meeting Abstract (Hypertonie 2003)

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  • presenting/speaker J. Schrader
  • S. Lüders
  • M. Dromowicz
  • A. Kulschewski
  • F. Hammersen
  • C. Züchner
  • U. Venneklaas
  • M. Schnieders
  • A. Gansz
  • G. Schrandt

Hypertonie 2003. 27. Wissenschaftlicher Kongress der Deutschen Hochdruckliga. Bonn, 26.-29.11.2003. Düsseldorf, Köln: German Medical Science; 2004. Doc03hochV24

The electronic version of this article is the complete one and can be found online at: http://www.egms.de/en/meetings/hoch2003/03hoch024.shtml

Published: November 11, 2004

© 2004 Schrader et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by-nc-nd/3.0/deed.en). You are free: to Share – to copy, distribute and transmit the work, provided the original author and source are credited.

Outline

Text

Background

Microalbuminuria (MAU) is a first sign for renal organ damage in hypertension. A consequent antihypertensive therapy may positively influence an existing MAU or even reverse it completely. Possible relationships to blood pressure and cardiovascular (cv) changes have been reported. In addition, a correlation between blood pressure and MAU is known for the ambulatory 24h blood pressure measurement (ABPM).

Objective

1. To determine the frequency of MAU.

2. Evaluation of an ACE-inhibitor (ramipril) therapy on blood pressure, the incidence or conversion of MAU and concomitant cv diseases in non-diabetic patients with hypertension.

3. Evaluation if normalization of MAU leads to decrease of cv events.

Methods

Prospective, controlled, open multi-centre project. Non-diabetic patients with hypertension without known renal diseases between 50 and 80 years not previously been treated with ramipril before were to be included when medical practitioner decided to start treatment with ramipril. ABPM and proteinuria-analysis was performed once a year up to 5 years. Determination of albumin-, total protein- and alpha1-microglobulin-excretion was carried out by quantitative protein measurement (nephelometry) in central laboratory of St.-Josefs-Hospital, Cloppenburg. Additionally SDS-electrophoresis was performed.

Results

4654 patients had been screened. About 75% of them were documented in long-term follow up (mean 3.5 years). In 51.5%, no proteinuria was observed, 33% were showing MAU. Signs of tubular damage occurred in 12.1%, and 3.4% of all patients revealed selective- or unselective-glomerular proteinuria.

Final results will be presented concerning blood pressure, cardiovascular events and outcome comparing patients with and without MAU.