Public Health News Roundup: October 2
Study: Improved Layperson CPR Education Increases Bystander Intervention, Saves Lives
As many as 80 percent of cardiac arrests occur outside of a hospital, meaning that improving the layperson’s knowledge of cardiopulmonary resuscitation (CPR) could improve the odds of effective bystander intervention—and along with it the chances of survival, according to a new study in the Journal of the American Medical Association. "In many cases, time from recognition of cardiac arrest to the arrival of emergency medical services is long, leaving bystanders in a critical position to potentially influence patient prognosis through intervention before EMS arrival," according to the study. "However, only a minority of cardiac arrests receive bystander CPR." The study authors looked at a 10-year period of about 19,400 out-of-hospital cardiac arrests in Denmark, finding that as the percentage who received bystander CPR rose from about 21 percent to 45 percent, the rate of people who arrived alive to the hospital also rose from about 8 percent to 22 percent. Read more on heart health.
Post-menopausal Hormone Therapy Ineffective at Long-term Disease Prevention
Post-menopausal hormone therapy is not effective at the long-term prevention of heart disease and other chronic conditions, according to a new study in the Journal of the American Medical Association. The study a review of the Women's Health Initiative (WHI), which is a collection of U.S. trials established to assess the role of hormone therapy in preventing chronic diseases in more than 27,000 healthy, older women. They found that the benefits were minimal and were offset by concerns over complications such as elevated rates of blood clots and strokes. However, the findings do support the continued use of hormone therapy for the short-term treatment of hot flashes, as well as for “relatively younger women who use it for a finite time,” according to HealthDay. Read more on prevention.
Study: Exercise as Effective as Drugs at Treating Heart Disease
When it comes to treating heart disease, exercise may be just as effective as medication, according to a new study in the British Medical Journal. The researchers from Britain's London School of Economics and Harvard and Stanford universities said this means physical activity should also be included as a comparison during the development and testing of new medications, as the lack of its inclusion "prevents prescribers and their patients from understanding the clinical circumstances where drugs might provide only modest improvement but exercise could yield more profound or sustainable gains." Cardiovascular disease accounts for 17 million global deaths each year. Another recent study also reinforced the ability of exercise to help prevent high blood pressure. Read more on physical activity.