Public Health News Roundup: February 11
AHA Releases Stroke Prevention Guidelines for Women
For the first time, the American Heart Association (AHA) has released stroke prevention guidelines for women. The guidelines outline stroke risks unique to women and provide evidence-based recommendations on how best to treat them, including:
- Women with a history of high blood pressure before pregnancy should be considered for low-dose aspirin and/or calcium supplement therapy to lower preeclampsia risks.
- Women who have preeclampsia have twice the risk of stroke and a four-fold risk of high blood pressure later in life. Therefore, preeclampsia should be recognized as a risk factor well after pregnancy, and other risk factors such as smoking, high cholesterol, and obesity in these women should be treated early.
- Pregnant women with moderately high blood pressure (150-159 mmHg/100-109 mmHg) should be considered for blood pressure medication; expectant mothers with severe high blood pressure (160/110 mmHg or above) should be treated.
- Women should be screened for high blood pressure before taking birth control pills because the combination raises stroke risks.
- Women who have migraine headaches with aura should stop smoking to avoid higher stroke risks.
- Women over age 75 should be screened for atrial fibrillation risks; a risk factor for stroke.
Read more on prevention.
New Study Predicts Flu Severity
Researchers at St. Jude Children’s Research Hospital in Memphis say flu patients, regardless of age, who have elevated levels of three particular immune system regulators, called cytokines, early in the infection were more likely to develop severe flu symptoms and to be hospitalized than patients with lower levels of the same regulators. Study participants ranged in age from 3 weeks to 71 years.
The study, published in the American Journal of Respiratory and Critical Care Medicine, found that cytokine levels early in the infection were predictive of flu-related complications regardless of patient age, flu strain, the ability of the virus to replicate and other factors. The cytokines studied help to regulate inflammation caused by the body’s immune response to the flu until antibodies and T cells take over. Patients with the elevated cytokines seem to develop airway distress as a reaction to the immune response, a development separate from the effects of the flu virus. “We need to explore targeted therapies to address this problem separately from efforts to clear the virus, says study author Paul Thomas, PhD, an assistant member of the St. Jude Department of Immunology. Read more on flu.
Community Health Worker Model Can Reduce Hospital Readmissions
A new study in JAMA Internal Medicine reports on a community health worker (CHW) program developed at the University of Pennsylvania School of Medicine that hired people from the local community to help discharged patients navigate the health care system and address key health barriers, such as housing instability or food insecurity. The study found that the intervention improved patient experiences and health outcomes and reduced hospital readmissions.
The Penn team tested the model in a randomized trial with 446 hospitalized patients who were either uninsured or on Medicaid, and lived in low-income communities in which more than 30 percent of the population lived below the Federal Poverty Level. More than one-third of all readmissions to the hospitals participating in the study come from a five-zip code region. Patients in the trial received support from CHWs hired for traits such as empathy and active listening. The CHWs connected during a patient's hospital stay and continued after they were discharged to help with issues including scheduling doctor appointments, accessing medications, or finding child care or shelter. The control group received routine hospital care, medication reconciliation, written discharge instructions, and prescriptions from the hospital. The CHW group had a 52 percent greater chance of seeing a primary care physician within two weeks after being discharged from the hospital and scores measuring a patient's confidence in managing their own care in the future more than doubled in the CHW group. While the two groups had similar rates of at least one hospital readmission (15 percent vs 13.6 percent), the CHW group was less likely to have multiple readmissions (2 percent vs 6 percent in the control group). Read more on health disparities.