Featured Research

from universities, journals, and other organizations

Native Hawaiians have bleeding strokes at earlier age, independent of meth use

Date:
February 6, 2013
Source:
American Heart Association
Summary:
Native Hawaiians have more bleeding strokes at an earlier age than other people independent of methamphetamine abuse. Besides genetics, environmental factors -- such as diet, stress, unhealthy lifestyles and a lack of good healthcare could also affect the higher incidences. Researchers suggest more focus is needed on controlling high blood pressure, diabetes and weight management in this population.

Native Hawaiians and Pacific Islanders have more bleeding strokes at an earlier age than other people independent of methamphetamine abuse, according to research presented at the American Stroke Association's International Stroke Conference 2013.

"Drug abuse is a huge problem here and it definitely is a cause of hemorrhagic stroke," said Kazuma Nakagawa, M.D., lead investigator and assistant professor of medicine at the University of Hawaii. "But Native Hawaiians and Pacific Islanders are experiencing this form of stroke at a younger age even without methamphetamine use. It's not all about methamphetamines, but possibly due to poor vascular health."

Intracerebral hemorrhage (ICH) is the most common type of hemorrhagic stroke. It occurs when a weakened blood vessel inside the brain ruptures and leaks blood into surrounding brain tissue.

In a retrospective study of ICH patients treated at an Oahu hospital, Native Hawaiians and Pacific Islanders (NHPI) had five times the risk of ICH stroke before age 45 when compared to non-Hispanic white controls. Of the 384 ICH patients studied in 2006-10, 19 percent were Native Hawaiian/Pacific Islanders, 65 percent were Asians and 16 percent non-Hispanic whites.

Researchers found:

  • NHPIs were an average 54 years when they had a hemorrhagic stroke compared to 68 years for non-Hispanic whites.
  • NHPIs had twice the amount of diabetes (36 percent versus 19 percent) and more than twice the number with untreated high blood pressure (32 percent versus 15 percent) when compared to non-Hispanic whites.
  • Intracerebral hemorrhage before age 45 occurred in 26 percent of NHPIs, 9 percent in Asians and only 6 percent in whites.
  • Ten percent of NHPI patients tested positive on toxicology screens for methamphetamine use compared to 3 percent of whites and 6 percent of Asians.
  • Seventeen percent of ICH before age 45 resulted from methamphetamine abuse.

"Forty-one percent of patients experiencing intracerebral hemorrhage before the age of 45 years were Native Hawaiians and Pacific Islanders," Nakagawa said. "After age 45, only 16 percent were Native Hawaiians and Pacific Islanders."

Besides genetics, environmental factors -- such as diet, stress, unhealthy lifestyles and a lack of good health care -- could also affect the higher incidences, he said. "These groups need a different intensity of treatment in the community. There needs to be a focus on controlling hypertension, diabetes and weight management."

The retrospective study was based on chart reviews in one institution. So researchers are conducting a prospective study to determine the causes of the strokes in young Native Hawaiians and Pacific Islanders.

Cerebral hemorrhage accounts for about 10 percent of 795,000 annual strokes in the United States. This form of stroke is often more severe and disabling than ischemic stroke, which is due to blockage in an artery.

Co-authors are: Megan Vento, B.S.; Matthew A. Koenig, M.D.; Susan M. Asai, R.N.; Cherylee W. Chang, M.D.; and Todd B. Seto, M.D., M.P.H. Author disclosures are on the abstract.

The American Heart Association funded the study.


Story Source:

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


Cite This Page:

American Heart Association. "Native Hawaiians have bleeding strokes at earlier age, independent of meth use." ScienceDaily. ScienceDaily, 6 February 2013. <www.sciencedaily.com/releases/2013/02/130206131044.htm>.
American Heart Association. (2013, February 6). Native Hawaiians have bleeding strokes at earlier age, independent of meth use. ScienceDaily. Retrieved August 1, 2014 from www.sciencedaily.com/releases/2013/02/130206131044.htm
American Heart Association. "Native Hawaiians have bleeding strokes at earlier age, independent of meth use." ScienceDaily. www.sciencedaily.com/releases/2013/02/130206131044.htm (accessed August 1, 2014).

Share This




More Health & Medicine News

Friday, August 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

House Republicans Vote to Sue Obama Over Healthcare Law

House Republicans Vote to Sue Obama Over Healthcare Law

Reuters - US Online Video (July 31, 2014) The Republican-led House of Representatives votes to sue President Obama, accusing him of overstepping his executive authority in making changes to the Affordable Care Act. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com
Despite Health Questions, E-Cigs Are Beneficial: Study

Despite Health Questions, E-Cigs Are Beneficial: Study

Newsy (July 31, 2014) Citing 81 previous studies, new research out of London suggests the benefits of smoking e-cigarettes instead of regular ones outweighs the risks. Video provided by Newsy
Powered by NewsLook.com
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

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