hearing loss


‘Silent Trauma’: Hearing Loss, Ear Damage Linger Long After Marathon Bombing

Emergency responders comfort a woman on a stretcher who was injured in the Boston Marathon bombing on April 15, 2013. (Jeremy Pavia/AP)

Emergency responders comfort a woman on a stretcher who was injured in the Boston Marathon bombing on April 15, 2013. (Jeremy Pavia/AP)

After two bombs exploded at the Boston Marathon in April of last year, the initial focus was on the lives and the multiple limbs lost in the attack. But ear damage was the most common physical injury. A new report finds that many victims are still suffering from hearing loss and ear damage related to the blasts.

A team of Boston researchers report on the lingering impact of those ear and hearing problems in a new study published in the journal Otology and Neurotology.

The report’s conclusion

Blast-related otologic injuries constitute a major source of morbidity after the Boston Marathon bombings. Orthopedic and soft tissue trauma was sustained by many, but far more incurred ear-related damage. This represents much of the silent trauma that requires continued evaluation and treatment…

More specifically:

Among the 94 study participants, researchers found that 90 percent of the hospitalized patients sustained “tympanic membrane perforation,” basically a ruptured ear drum, following the bombings. From the study:

Proximity to blast and significant nonotologic injury were positive predictors of perforation. Spontaneous healing occurred in 38% of patients, and tympanoplasty success was 86%…Hearing loss, tinnitus, hyperacusis, and difficulty hearing in noise remain persistent and, in some cases, progressive complaints for patients. Otologic-specific quality of life was impaired in this population.

Notably, it took many blast victims some time to realize the extent of their hearing problems, researchers report. Alicia M. Quesnel, an otologic surgeon at Massachusetts Eye and Ear and Harvard Medical School, a senior author of the study told The Washington Post:

“I saw patients who were traumatized by what had just happened, and there was a lot going on emotionally,” Quesnel said. “We were seeing people coming into the clinic in the days and weeks after the bombing. They realized that they can’t hear very well.”

“A bomb going off — that loudness results in some temporary deafening. It may have taken people a few days or weeks to realize ‘I can’t hear from one ear or both ears.'”

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Why To Exercise Today: Preserve Your Ears (You Heard That Right)

(Wikimedia Commons)

(Wikimedia Commons)

They just don’t stop coming — the far-flung body parts and systems that you can help by exercising. The latest: Your ears.

Brigham and Women’s Hospital researchers report in the American Journal of Medicine that in women, exercise is linked to a lower risk of hearing loss. (And on the flip side, obesity is linked to a higher rate.) From the Brigham press release:

Using data from 68,421 women in the Nurses’ Health Study II who were followed from 1989 to 2009, researchers analyzed information on BMI, waist circumference, physical activity, and self-reported hearing loss…Compared with women who were the least physically active, women who were the most physically active had a 17 percent lower risk of hearing loss. Walking, which was the most common form of physical activity reported among these women, was associated with lower risk; walking 2 hours per week or more was associated with a 15 percent lower risk of hearing loss, compared with walking less than one hour per week.

But wait just a minute, you may say; for me to exercise, I have to pipe loud music into my ears. Surely that negates any positive effect? I asked the study’s lead author, Dr. Sharon Curhan. She emailed:

Regarding your question about listening to music and using earbuds/headphones while working out–absolutely! What is important is that people learn how to listen to music safely. In order to avoid noise-induced hearing damage, both the “level” (volume) and “duration” of the noise exposure need to be considered. This means that the louder the music, the shorter the time of safe exposure. For example, if you want to listen to your music with earbuds for a long time (say 90 minutes/day or more), then set the volume at 60% volume or less. The longer you want to listen, the lower the volume should be. The headphone types may make a difference, too. Noise-canceling headphones or insert earphones may help reduce background noise so that the volume will not need to be turned as high. However, there are some situations when it is essential to be aware of background noise for safety reasons, such as running or biking on a busy road.

And in case you’re wondering how exercise might preserve hearing, I’d sum up the theories as “exercise makes your body healthier, including your ears.” The paper offers some possible mechanisms: Continue reading