Featured Research

from universities, journals, and other organizations

Improved Predictive Value Of Biomarkers In Heart Failure Makes Earlier Diagnosis And Better Management Possible

Date:
April 7, 2009
Source:
European Society of Cardiology
Summary:
The use of biomarkers for identifying those at risk of cardiovascular mortality is now central to the management of patients with heart failure. Research now aims to find new, more sensitive markers and more efficient use of existing markers. The ultimate goal is to make earlier and more accurate diagnosis possible, and thereby improve treatment and survival.

With an ever aging population and more people surviving a heart attack, heart failure is now the world's most prevalent chronic cardiovascular disease. Yet despite improvements in its diagnosis and management, heart failure remains a stubbornly incurable condition with a poor prognosis, largely amenable to little more than palliative therapy.

Heart failure describes a syndrome of symptoms without a single diagnostic test. However, the discovery and application of markers of disease (biomarkers) have improved risk stratification in heart failure and made earlier detection possible. Now, reports in the April issue of the European Journal of Heart Failure suggest two more efficient applications of biomarkers, and with them the promise of even earlier diagnosis and improved treatment.

UK Findings

According to results from a study in Hull, UK, repeat measurement of the well established biomarker N-terminal pro-B-type natriuretic peptide (NT-proBNP) once treatment has been optimised provides stronger prognostic information than either the baseline value, the change in NT-proBNP, or other conventional methods of assessment.

The finding emerged from a study of 354 patients with chronic heart failure treated in a community-based heart failure programme. Measurement of (NT-proBNP) was performed at baseline and, in those surviving (318), once again between the fourth and sixth month of follow-up. During the study follow-up period (a median of 39 months) 125 patients died, and analysis showed that follow-up NT-proBNP measurement proved a better predictor of death than either baseline NT-proBNP or change in NT-proBNP. Indeed, say the authors, NT-proBNP "was consistently the strongest independent prognostic marker at predicting death or unplanned cardiovascular hospitalisations after baseline or follow-up assessment".

First author Dr Milos Kubanek from Castle Hill Hospital, Hull, UK, added: "NT-proBNP monitoring will enable the identification of patients who are not responding well to treatment or help flag those patients needing more aggressive management and monitoring. We found NT-proBNP to be a much stronger predictor of mortality and CV-hospitalisation than echocardiographic measurements of, for example, ejection fraction, and therefore repeat NT-proBNP measurement may enable a reduction in the number of repeat echocardiograms.

"We suggest that the main role of conventional echocardiography should be to diagnose and differentiate the principal causes of heart failure, with subsequent NT-proBNP monitoring used to identify worsening disease and trigger further echocardiographic assessment. Given the relatively high cost of echocardiography compared to NT-proBNP, such a policy is likely to be cost effective."

Swedish Findings

A study from Sweden suggests the combined application of two independently established biomarkers gives better prognostic information about the risk of cardiovascular mortality in heart failure patients than just one biomarker. This was a study of 464 elderly patients with the symptoms of heart failure followed up over a ten-year period Linkoping University Hospital. Throughout that time serum measurements of the biomarker cystatin C (a marker of renal function) were taken, with results showing that those with levels within the highest quartile had almost three times the risk of cardiovascular death than those with levels in the first, second, or third quartiles.

However, when these measurements were combined with measurements of NT-proBNP, the mortality risk assessment was even more emphatic. For example, if those with high concentrations of cystatin C also had a plasma concentration of NT-proBNP within the highest quartile, the risk of death increased to more than 13 times over ten years of follow-up and almost 17 times after five years of follow-up.

The study's first author, Dr Urban Alehagen from the Heart Center of Linkoping University Hospital, Linkoping, Sweden, said: "Because the majority of patients with heart failure are elderly and often affected by other organ symptoms, including renal impairment, it is important to identify those at high risk, both for the provision of optimal treatment and the most effective use of health resources. The use of a single blood test and the analysis of two biomarkers is one way of identifying those patients where health resources are best focused. More and more clinicians are using information from natriuretic peptides. However, it is now possible to expand the use of these biomarkers in clinical practice, and our study proposes one such potent combination."

The use of biomarkers for identifying those at risk of cardiovascular mortality is now central to the management of patients with heart failure. Research now aims to find new, more sensitive markers and more efficient use of existing markers. The ultimate aim, as this issue of the European Journal of Heart Failure suggests, is to make earlier and more accurate diagnosis possible, and thereby improve treatment and survival.

Commenting on the implications of the findings, Professor Karl Swedberg, Editor-in-Chief of the European Journal of Heart Failure, said: "A combination of biomarkers to improve diagnosis and prognosis – as suggested by Alehagen and colleagues – now seems to be the basis of optimal management of patients with heart failure."


Story Source:

The above story is based on materials provided by European Society of Cardiology. Note: Materials may be edited for content and length.


Journal References:

  1. Kubanek M, Goode KM, Lanska V, et al. The prognostic value of repeated measurement of N-terminal pro-B-type natriuretic peptide in patients with chronic heart failure due to left ventricular systolic dysfunction. European Journal of Heart Failure, 2009; DOI: 10.1093/eurjhf/hfp003
  2. Alehagen U, Dahlstrom U, Lindahl TL. Cystatin C and NT-proBNP, a powerful combination of biomarkers for predicting cardiovascular mortality in elderly patients with heart failure: results from a 10-year study in primary care. European Journal of Heart Failure, 2009; DOI: 10.1093/eurjhf/hfp024

Cite This Page:

European Society of Cardiology. "Improved Predictive Value Of Biomarkers In Heart Failure Makes Earlier Diagnosis And Better Management Possible." ScienceDaily. ScienceDaily, 7 April 2009. <www.sciencedaily.com/releases/2009/03/090329205439.htm>.
European Society of Cardiology. (2009, April 7). Improved Predictive Value Of Biomarkers In Heart Failure Makes Earlier Diagnosis And Better Management Possible. ScienceDaily. Retrieved July 29, 2014 from www.sciencedaily.com/releases/2009/03/090329205439.htm
European Society of Cardiology. "Improved Predictive Value Of Biomarkers In Heart Failure Makes Earlier Diagnosis And Better Management Possible." ScienceDaily. www.sciencedaily.com/releases/2009/03/090329205439.htm (accessed July 29, 2014).

Share This




More Health & Medicine News

Tuesday, July 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deadly Ebola Virus Threatens West Africa

Deadly Ebola Virus Threatens West Africa

AP (July 28, 2014) West African nations and international health organizations are working to contain the largest Ebola outbreak in history. It's one of the deadliest diseases known to man, but the CDC says it's unlikely to spread in the U.S. (July 28) Video provided by AP
Powered by NewsLook.com
$15B Deal on Vets' Health Care Reached

$15B Deal on Vets' Health Care Reached

AP (July 28, 2014) A bipartisan deal to improve veterans health care would authorize at least $15 billion in emergency spending to fix a veterans program scandalized by long patient wait times and falsified records. (July 28) Video provided by AP
Powered by NewsLook.com
Two Americans Contract Ebola in Liberia

Two Americans Contract Ebola in Liberia

Reuters - US Online Video (July 28, 2014) Two American aid workers in Liberia test positive for Ebola while working to combat the deadliest outbreak of the virus ever. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Traditional African Dishes Teach Healthy Eating

Traditional African Dishes Teach Healthy Eating

AP (July 28, 2014) Classes are being offered nationwide to encourage African Americans to learn about cooking fresh foods based on traditional African cuisine. The program is trying to combat obesity, heart disease and other ailments often linked to diet. (July 28) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins