They emphasize the need for long-term follow-up assessments to ensure that patients receive appropriate testing and treatment for any resultant disabling symptoms. Remenschneider and his team point out that many patients have “hidden hearing loss,” which may not be apparent on routine hearing tests. The Boston Marathon experience suggests that otologic trauma can be a major source of immediate and lasting injury for victims of civilian bombing attacks. The new study suggests that the impact of blast-related injury might be greater in civilians, perhaps because protective equipment normally worn by military personnel is absent in civilians. Most of what is known about blast-related otologic injury comes from military studies blast trauma to the ear is fortunately rare in civilian populations. In follow-up surveys, many patients had ongoing disability related to hearing loss, tinnitus, or dizziness. Many had difficulty hearing in noisy situations others developed delayed problems with disequilibrium. Other symptoms included increased sensitivity to sound (hyperacusis) and dizziness or balance problems.įor many patients, hearing problems were still present–and sometimes still worsening–one year after the attacks. On follow-up evaluation of 44 patients, 80 percent had reduced hearing and 68 percent had new or worsened tinnitus. One Year Later, Many Have Persistent Hearing LossĪll patients expressed concern about hearing loss or tinnitus (ringing in the ears). Patients with larger ruptures required surgical repair, which had a high rate of success (86 percent). In 38 percent of cases, the perforations healed spontaneously. Rates of perforations were nearly three times higher for patients who had other significant injuries related to the bombings, and for those who were closer to the blast. Overall, 90 percent of patients hospitalized for other injuries had tympanic membrane perforations on examination. The most common type of otologic injury was tympanic membrane perforation, which is a ruptured eardrum.įorty-eight patients had tympanic membrane perforations, with 14 patients having perforations in both ears. Most of the patients sustained primary blast injury known as barotrauma. Only seven percent of patients had any hearing-related symptoms before the attack. The study included 94 of the more than 100 patients evaluated at Boston area hospitals and clinics after the blasts, including: “However, the extensiveness was not appreciated until the days and weeks that followed.” Aaron Remenschneider, on of the principal investigators. “Acute otologic trauma following the dual blasts was immediately apparent,” said Dr. The study assembles data from eight hospitals that provided care for patients with otologic trauma caused by two bomb explosions near the finish line of the 2013 Boston Marathon. The researchers conclude, “Blast-related otologic (ear and hearing-related) injuries constitute a major source of morbidity following the Boston Marathon bombings.” Ruptured Eardrum and Other Injuries after Marathon Bombings After the Boston Marathon bombings, more than 100 people were treated for trauma affecting the ears and hearing–with many having persistent or worsening hearing loss or other symptomsĪ Boston-wide research collaboration has reviewed the experience with hearing injuries caused by the 2013 attack, including follow-up evaluation of hearing and related outcomes.
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