Featured Research

from universities, journals, and other organizations

Cut the salt and ditch the drugs: Controlling blood pressure in dialysis patients

Date:
May 29, 2010
Source:
American Society of Nephrology
Summary:
For kidney patients trying to control their blood pressure, reducing fluid build-up in the blood is more effective than using antihypertensive medications, according to a new analysis. The research suggests that lowering salt intake may help reduce build-up.

For kidney patients trying to control their blood pressure, reducing fluid build-up in the blood is more effective than using antihypertensive medications, according to an analysis appearing in an upcoming issue of the Clinical Journal of the American Society Nephrology (CJASN). The research suggests that lowering salt intake may help reduce build-up.

Dry-weight is a kidney disease patient's weight immediately after dialysis, when he or she does not carry the excess fluid that builds up between dialysis treatments. Dry-weight is the lowest weight one can safely reach after dialysis without developing symptoms of low blood pressure such as cramping, which can occur when too much fluid is removed. If a patient lets too much fluid build up between sessions, it is harder to get down to a proper dry-weight. Achieving and maintaining dry-weight can improve blood pressure between dialysis sessions and limit hospitalizations. This appears to be an effective but forgotten strategy in controlling and maintaining blood pressure control among hypertensive patients on dialysis.

Rajiv Agarwal, MD (Indiana University School of Medicine and Roudebush VA Medical Center) and Matthew Weir, MD (University of Maryland Medical Center) looked to see what information is available in the medical literature related to dry-weight and its use in achieving blood pressure control. Their goal was to provide an overview of the concept of dry-weight: how to assess it and how to achieve it.

The investigators found that dry-weight can be assessed inexpensively through relative plasma volume monitoring (which uses photo-optical technology to assess changes in volume of a patient's blood) and body impedance analysis (which determines lean body mass). They also discovered that restricting salt intake can help control blood pressure and make it easier for patients to get down to a proper dry-weight. Studies suggest that salt restriction and dry-weight reduction through dialysis together provide more benefits to the heart than antihypertensive medications. This could have important clinical implications because most patients with chronic kidney disease die from cardiovascular causes.

The authors concluded that "medication-directed approaches for blood pressure control should be a secondary consideration to manipulating the diet and dialysis prescription in order to achieve dry-weight."

Reducing salt intake is getting easier now that many restaurants and packaged food companies are participating in the National Salt Reduction Initiative, a public-private partnership formed to combat America's over-consumption of salt. Their goal is to reduce sodium in their products by 20% over the next five years. Also, the U.S. Food and Drug Administration is planning to launch an initiative later this year to reduce Americans' salt intake by imposing legal limits on the amount of sodium allowed in processed food.


Story Source:

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


Journal Reference:

  1. R. Agarwal, M. R. Weir. Dry-Weight: A Concept Revisited in an Effort to Avoid Medication-Directed Approaches for Blood Pressure Control in Hemodialysis Patients. Clinical Journal of the American Society of Nephrology, 2010; DOI: 10.2215/CJN.01760210

Cite This Page:

American Society of Nephrology. "Cut the salt and ditch the drugs: Controlling blood pressure in dialysis patients." ScienceDaily. ScienceDaily, 29 May 2010. <www.sciencedaily.com/releases/2010/05/100527170953.htm>.
American Society of Nephrology. (2010, May 29). Cut the salt and ditch the drugs: Controlling blood pressure in dialysis patients. ScienceDaily. Retrieved April 23, 2014 from www.sciencedaily.com/releases/2010/05/100527170953.htm
American Society of Nephrology. "Cut the salt and ditch the drugs: Controlling blood pressure in dialysis patients." ScienceDaily. www.sciencedaily.com/releases/2010/05/100527170953.htm (accessed April 23, 2014).

Share This



More Health & Medicine News

Wednesday, April 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Big Pharma Braces for M&A Wave

Big Pharma Braces for M&A Wave

Reuters - Business Video Online (Apr. 22, 2014) Big pharma on the move as Novartis boss, Joe Jimenez, tells Reuters about plans to transform his company via an asset exchange with GSK, and Astra Zeneca shares surge on speculation that Pfizer is looking for a takeover. Joanna Partridge reports. Video provided by Reuters
Powered by NewsLook.com
How Smaller Plates And Cutlery Could Make You Feel Fuller

How Smaller Plates And Cutlery Could Make You Feel Fuller

Newsy (Apr. 22, 2014) NBC's "Today" conducted an experiment to see if changing the size of plates and utensils affects the amount individuals eat. Video provided by Newsy
Powered by NewsLook.com
How to Master Motherhood With the Best Work/Life Balance

How to Master Motherhood With the Best Work/Life Balance

TheStreet (Apr. 22, 2014) In the U.S., there are more than 11 million couples trying to conceive at any given time. From helping celebrity moms like Bethanny Frankel to ordinary soon-to-be-moms, TV personality and parenting expert, Rosie Pope, gives you the inside scoop on mastering motherhood. London-born entrepreneur Pope is the creative force behind Rosie Pope Maternity and MomPrep. She explains why being an entrepreneur offers the best life balance for her and tips for all types of moms. Video provided by TheStreet
Powered by NewsLook.com
Catching More Than Fish: Ugandan Town Crippled by AIDS

Catching More Than Fish: Ugandan Town Crippled by AIDS

AFP (Apr. 22, 2014) The village of Kasensero on the shores of Lake Victoria was where HIV-AIDS was first discovered in Uganda. Its transient population of fishermen and sex workers means the nationwide programme to combat the virus has had little impact. Duration: 02:30 Video provided by AFP
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