AHA: Oxygen May Not Help STEMI Patients

This article originally appeared here.
Share this content:
AHA: Oxygen May Not Help STEMI Patients
AHA: Oxygen May Not Help STEMI Patients

WEDNESDAY, Nov. 19, 2014 (HealthDay News) -- ST-elevation myocardial infarction (STEMI) patients treated with oxygen endure 25 to 30 percent more cardiovascular damage than patients not given oxygen. These findings are being presented at the annual meeting of the American Heart Association, held from Nov. 15 to 19 in Chicago.

For the study, researchers had paramedics in Melbourne randomly assign STEMI patients to either receive or not receive oxygen during treatment. Lanyards hung around the patients' necks by the ambulance crews let hospital workers know who should receive oxygen during the remainder of their care, and who should not. The study included 441 STEMI patients.

In those who received oxygen, the researchers found elevated levels of creatine kinase and troponin. The levels of these enzymes were 25 percent higher in those who were given oxygen compared to those who didn't get oxygen. About a third of the participants returned six months following their STEMI to undergo cardiac magnetic resonance imaging (MRI). The MRIs revealed that people who got oxygen had 30 percent more damage to their heart muscle than those who did not, lead investigator Dion Stub, M.B.B.S., an interventional cardiologist at St. Paul's Hospital in Vancouver, Canada, told HealthDay.

The researchers also found that oxygen made no difference in symptoms felt by the patients in their study -- an unusual result, given that oxygen most often is provided during a STEMI because it is believed to reduce chest pain. "They certainly felt no better," Stub said. "There was no difference in pain." People given oxygen also had increased levels of complications, including repeat STEMIs, major bleeding, and irregular heart rhythms, he said. Death rates six months after treatment were similar -- 3.8 percent for patients with oxygen and 5.9 percent for those who did not receive oxygen.

Full Article
Abstract
More Information

Share this content:

is free, fast, and customized just for you!




Already a member?

Sign In Now »

Trending Activities

All Professions

Drug Lookup

Browse drugs by: BrandGenericDisease

More in Home

Ground Beef Recalled After E. Coli Outbreak

Ground Beef Recalled After <i>E. Coli</i> Outbreak

Beef was produced and packaged at Cargill Meat Solutions in Fort Morgan, Colo.

Prevalence of Alzheimer's, Related Dementia Set to Double

Prevalence of Alzheimer's, Related Dementia Set to Double

Alzheimer's disease and related dementias burden is expected to increase to 3.3 percent in 2060

Long-Term Outcomes of Breast Implants Explored

Long-Term Outcomes of Breast Implants Explored

Higher rates of Sjogren syndrome, scleroderma, RA, stillbirth, melanoma for silicone implants

is free, fast, and customized just for you!




Already a member?

Sign In Now »