Jan 02

Electromagnetic Field Exposure Could Increase Risk of Asthma

According to the most recent statistics by the US Centers for Disease Control and Prevention, asthma rates are rising with an additional 4.3 million people being diagnosed with the breathing disease between 2001 and 2009. Paul Garbe, chief of the CDC’s Air Pollution and Respiratory Health Branch said the increase in cases is concerning, especially when several known factors that contribute to asthma (smoking, secondhand smoke exposure) have been on the decline. One area of interest to researchers is the contribution that electromagnetic fields (EMF’s) may have on the increased risk of developing the disease.
EMF Exposure May Contribute to Lowered Immune Response

Dr. De-Kun Li, a senior research scientist Kaiser Permanente in California, and colleagues studied the effects of EMF’s on 801 pregnant women who wore monitors to measure their exposure to low-frequency magnetic fields from power lines and appliances such as microwave ovens and hair dryers for 24 hours. The monitors did not measure high-frequency EMF exposure generated from devices such as cellphones or cellphone towers. The team used medical records to follow the children born to the women for 13 years.

During the follow-up, almost 21% of the children had developed asthma, most diagnosed before the age of 5. The children whose mothers had the highest EMF exposure levels (within the top 10%) were 3.5 times more likely to develop the disease versus those born to women with the least exposure. For the average population, Li said, children of women whose exposure levels were in the range of the bottom 10 percent in the study would have about a 13.6 percent absolute risk of developing asthma.

It is not clear why exposure to EMFs might increase the risk of asthma, but Li theorizes that they might contribute to lowered immune response based on findings from prior animal studies. Other possibilities include data that implicate higher miscarriage rates and poor semen quality when exposed to high levels of electromagnetic fields.

“Pregnancy is the most sensitive time for the fetus,” Li says. “Animal studies show that EMF can impact the immune system, and the latest research suggests that cells use magnetic fields to communicate with each other. If an external EMF comes into interfere with that, cell communication needed for normal development can be disrupted.”

"This really needs to be studied [further]," concludes Li, so that there may one day be new strategies for preventing the chronic disease in children. Until the findings can be replicated, experts agree that women should not worry about low-level EMF exposure but focus more on avoiding known risk factors such as cigarette smoke and lead.

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Jan 02

Medical Tourism Flourishing in Philippines

The Health Undersecretary of the Philippines -- Jade del Mundo -- recently stated that the bustling medical tourism program of the Philippines is allowing new doors to open in the nursing field, adding that the current multi-million dollar medical tourism program would be expanding in the provinces of the Philippines next year.

Medical tourism is a rapidly growing industry in the Philippines, with prominent hospitals in metropolitan Manila like St. Luke's Medical Center, Asian Hospital, Medical City, Makati Medical Center, Capitol Medical Center, Lung Center, Philippine Heart Center, National Kidney and Transplant Institute, Philippine Children's Medical Center and East Avenue Medical Center affiliated with the program.

Along with such rapid growth comes a need for skilled nurses. Health Undersecretary del Mundo indicated that "there will be no discrimination" in the hiring of nurses to serve the bustling growth in the medical tourism industry. He also said that top government hospitals in the provinces -- particularly in the Central Luzon, Baguio, Cebu, Iloilo and Davao provinces -- will soon be joining the medical tourism program as well.

Hospitals operated by the Filipino government plan to provide proper training for all new nurses. These hospitals are attractive to foreign patients because of lower costs on surgical procedures, in addition to being located near popular tourist locations in the Philippines.

For example, hospitals in Bicol, Cebu and Davao have been offering surgical procedures such as the coronary artery bypass graft at a cost of only $10,000, about half of the typical cost in countries outside the Philippines. A more extreme example would be a kidney transplant, which is available in Davao and Cebu hospitals at a cost of $60,000. This same procedure could cost $140,000 in other countries.

With health care costs in the U.S. rising every year at a rapid rate, more and more Americans are looking to countries like the Philippines to have medical services performed. In 2004, total national health expenditures rose 7.9 percent, which was over three times the rate of inflation. Total health care spending reached $1.9 trillion in 2004 -- or $6,280 per person -- and represented 16 percent of the gross domestic product (GDP) of the United States.

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Jan 02

How to Prevent Kids From Asthma Flare-ups

For kids who have asthma, fall means more than greeting a new school year: It’s also the time of year they are most likely to experience asthma flare-ups. Here are some tips on how to prevent these episodes.
Fall brings lots of allergens for asthma sufferers

Autumn is an especially difficult time of year for kids with asthma, for several reasons. The level of outdoor airborne allergens (e.g., pollen, mold) is high, for example, and as the weather gets colder, they tend to stay indoors more, where they can be exposed to a greater concentration of indoor allergens, such as pet dander, household chemicals, dust, and smoke.

Fall also is the beginning of the cold and flu season, and children with asthma are at risk for serious complications if they contract the flu. Robert Wood, MD, director of Allergy & Immunology at Johns Hopkins Children’s Center explains that “year after year, we see a predictable spike in patient visits for asthma exacerbations in fall and winter, but many of these visits could be easily avoided with simple prevention.”

First on the simple prevention list is a flu shot, which is recommended by the Centers for Disease Control and Prevention for all children ages 6 months and older. A flu shot is particularly important for kids with asthma, because they are more likely to be hospitalized if they get the flu than are children without asthma. The shot also can minimize complications if they do get the flu.

Another preventive step is to avoid exposure to the things that trigger an asthma attack. Obviously this can be a challenge, but parents can do simple things like make sure the home environment is as clean as possible (e.g., vacuum with HEPA filters, change filters in the furnace, use air cleaners in the home, avoid use of household chemicals) and limit activities outdoors on days when pollen counts are high.

A recent study explored the impact of free-standing air cleaners in the homes children ages 6 to 15 who had at least one caregiver who smoked. Researchers found that particulate matter—smoke, soil, pollen, dust, mold spores—was nearly 50% less in homes with air cleaners, and that the children in those homes had significantly fewer days without asthma symptoms than did kids living in homes without air cleaners.

Yet a third preventive measure for kids with asthma is for them to use their controller medications regularly. Children with persistent asthma can benefit from consistent use of drugs that suppress airway inflammation and thus prevent attacks.

Elizabeth Matsui, MD, MPH, a pediatric allergist and immunologist at Hopkins Children’s, explained that while many kids experience fewer symptoms of asthma during the summer and so they reduce their use of controller medications, “most kids’ symptoms will return with the change of season so reverting to their regular drug regimens is critical.”

Parents can help prevent fall asthma flare-ups in their kids if they adopt a few simple measures. Fewer asthma episodes can mean a more enjoyable school year and holiday season for kids and their families.

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