Sex differences narrow in death after heart attack
The utility of sex, according to an intriguing new theory of evolutionary biology, may be its ability to promote genes that play well with many other partners rather than those that shine with just one specific set of genes. This idea of genetic mixability, described in the journal Proceedings of the National Academy of Sciences
Full Post: Sexual reproduction and evolution
In recent years, women, particularly younger women, experienced larger improvements in hospital mortality after myocardial infarction than men, according to a new study.
Over the last decade some studies showed that younger women, but not older ones, are more likely to die in the hospital after MI than age-matched men. A team of researchers led by Emory University examined whether such mortality differences have declined in recent years.
“We found that the number of younger women who die in the hospital after a heart attack, compared with men has narrowed over the last few years,” says study leader Viola Vaccarino, MD, PhD, professor of medicine (cardiology), Emory University School of Medicine.
Vaccarino says changes in patient characteristics and treatments over time accounted in part for the changing mortality trends. The findings were presented Nov. 12 at the American Heart Association Scientific Sessions conference in New Orleans.
Often referred to as a heart attack, MI occurs when the blood supply to part of the heart is interrupted. This decreased blood supply is commonly due to blockage of a coronary artery and if left untreated can cause damage and/or death (infarction) of heart muscle tissue.
The researchers investigated MI mortality trends according to sex and age in five age groups during a 12-year period from 1994 to 2006. The study population included 916,380 MI patients from the National Registry of Myocardial Infarction (NRMI) who had a confirmed diagnosis of MI.
The researchers found that hospital mortality declined markedly between 1994 and 2006 in all patients, but more so in women than in men in virtually every age group. The mortality reduction in 2006 relative to 1994 was largest in women under the age of 55 years (53 percent) and lowest in men under the age of 55 years (33 percent). In patients younger than 55, the absolute decline in mortality was three times larger in women than in men (2.7 percent vs 0.9 percent).
The sex difference in mortality decline became progressively lower in older patients. As a result, the death rate in younger women, compared with men was less pronounced in 2004-06 than in 1994-95.
Men and women have about the same in-hospital death rate for heart attack - but women are twice as likely to die if hospitalized for a more severe type of heart attack, according to a report in Circulation: Journal of the American Heart Association. Among patients with ST elevation myocardial infarction (STEMI) in a recent
Full Post: Gender disparity gap in heart attack care still present
The United States ranked 29th in the world in infant mortality in 2004, compared to 27th in 2000, 23rd in 1990 and 12th in 1960, according to a new report from CDC’s National Center for Health Statistics. The U.S. infant mortality rate was 6.78 infant deaths per 1,000 live births in 2004, the latest
Full Post: New U.S. infant mortality data released
The overall incidence of cancer and death due to cancer dropped for the first time in men and women in the United States, according to a report published in the November 25 online issue of the Journal of the National Cancer Institute. Each year the American Cancer Society, the Centers for Disease Control and Prevention,
Full Post: Cancer declines for first time in United States
Despite substantial progress in the diagnosis and treatment of heart attack patients, prevention of recurrent heart attacks continues to be a major clinical challenge. A new study showed that patients who suffered a non-fatal heart attack within the first three months of hospitalization for chest pain had a significantly higher risk for dying or having
Full Post: Heart attack prevention within three months after hospitalization significantly averted future attacks
The number of heart attack patients admitted to Michigan hospitals could be significantly reduced if a statewide public smoking ban were implemented, according to a Henry Ford Hospital study. Researchers looked at the average number of hospital admissions from 1999-2006 in Michigan for what is known as acute myocardial infarction, or heart attack, and
Full Post: Public smoking ban would reduce heart attack admissions