Featured Research

from universities, journals, and other organizations

Glaucoma Associated With Increased Risk Of Cardiovascular Death In Black Patients, Study Shows

Date:
March 13, 2008
Source:
JAMA and Archives Journals
Summary:
Black patients with diagnosed and treated glaucoma and those with high pressure in their eyes appear to have an increased risk of death from cardiovascular causes, according to a new article.

Black patients with diagnosed and treated glaucoma and those with high pressure in their eyes appear to have an increased risk of death from cardiovascular causes, according to a new report.

"Glaucoma is one of the leading causes of visual impairment worldwide," the authors write as background information in the article. "The most common type, primary open-angle glaucoma, is especially prevalent in populations of African origin, in which it is the foremost cause of blindness." In addition to higher rates of open-angle glaucoma, black populations also tend to have higher rates of death from chronic disease and high pressure within their eyes (ocular hypertension) than white populations.

Suh-Yuh Wu, M.A., of Stony Brook University, Stony Brook, New York, and colleagues studied 4,092 participants age 40 to 84 (average age 58.6) in the Barbados Eye Studies, which assess a predominately black population with similar ancestry to African-Americans. Initial visits occurred between 1987 and 1992. Height, weight and blood pressure were recorded; interviews were conducted; and various eye measurements were taken. These included photographs of the retina and measurements of eye pressure.

At the beginning of the study, 300 participants had glaucoma, including 141 who had been diagnosed and treated. After nine years of follow-up, 764 (19 percent) of the participants had died. After adjusting for other factors, glaucoma was not associated with the risk of death overall. However, the risk of death from cardiovascular causes was 38 percent higher in individuals who had previously been diagnosed with or treated for open-angle glaucoma and 91 percent higher in those who had been treated with one particular agent, the beta-blocker timolol maleate. Cardiovascular deaths were also 28 percent higher in those with ocular hypertension at the beginning of the study.

"One explanation for the excess mortality [death] found in persons with previously diagnosed open-angle glaucoma could be their longer duration of disease compared with those with newly diagnosed disease," the authors write. "Another explanation for an increased mortality risk could be related to the open-angle glaucoma treatment received." Adverse effects or inappropriate use of beta-blockers and other medications used to treat glaucoma may harm the cardiovascular system and increase death risk.

Some evidence suggests that risk factors for ocular hypertension and cardiovascular disease are similar, potentially explaining the increased risk of death associated with ocular hypertension, the authors note. "These findings underscore the importance of close monitoring and controlling of adequate intraocular pressure levels in this and other high-risk populations," they conclude.

Journal reference: Arch Ophthalmol. 2008;126[3]:365-370.

This study was supported by grants from the National Eye Institute, Bethesda, Md.


Story Source:

The above story is based on materials provided by JAMA and Archives Journals. Note: Materials may be edited for content and length.


Cite This Page:

JAMA and Archives Journals. "Glaucoma Associated With Increased Risk Of Cardiovascular Death In Black Patients, Study Shows." ScienceDaily. ScienceDaily, 13 March 2008. <www.sciencedaily.com/releases/2008/03/080310164909.htm>.
JAMA and Archives Journals. (2008, March 13). Glaucoma Associated With Increased Risk Of Cardiovascular Death In Black Patients, Study Shows. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2008/03/080310164909.htm
JAMA and Archives Journals. "Glaucoma Associated With Increased Risk Of Cardiovascular Death In Black Patients, Study Shows." ScienceDaily. www.sciencedaily.com/releases/2008/03/080310164909.htm (accessed July 31, 2014).

Share This




More Health & Medicine News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Dangerous Bacteria Kills One in Florida

Dangerous Bacteria Kills One in Florida

AP (July 31, 2014) Sarasota County, Florida health officials have issued a warning against eating raw oysters and exposing open wounds to coastal and inland waters after a dangerous bacteria killed one person and made another sick. (July 31) Video provided by AP
Powered by NewsLook.com
Health Insurers' Profits Slide

Health Insurers' Profits Slide

Reuters - Business Video Online (July 30, 2014) Obamacare-related costs were said to be behind the profit plunge at Wellpoint and Humana, but Wellpoint sees the new exchanges boosting its earnings for the full year. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Peace Corps Pulls Workers From W. Africa Over Ebola Fears

Peace Corps Pulls Workers From W. Africa Over Ebola Fears

Newsy (July 30, 2014) The Peace Corps is one of several U.S.-based organizations to pull workers out of West Africa because of the Ebola outbreak. Video provided by Newsy
Powered by NewsLook.com
Weather Kills 2K A Year, But Storms Aren't The Main Offender

Weather Kills 2K A Year, But Storms Aren't The Main Offender

Newsy (July 30, 2014) Health officials say 2,000 deaths occur each year in the U.S. due to weather, but it's excessive heat and cold that claim the most lives. Video provided by Newsy
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