CDC Dives into Swimmer’s Ear Prevention
Preventing AOE DO keep your ears as dry as possible. • Use a bathing cap, ear plugs, or custom-fitted swim molds when swimming to keep water out of ears. DO dry your ears thoroughly after swimming or showering. • Use a towel to dry your ears. • Tilt your head to hold each ear facing down to allow water to escape the ear canal. • Pull your earlobe in different directions while the ear is faced down to help water drain out. • If there is still water left in ears, consider using a hair dryer to move air within the ear canal. • Be sure the hair dryer is on the lowest heat and speed setting. • Hold the hair dryer several inches from the ear. DON’T put objects in the ear canal (including cotton-tip swabs, pencils or fingers). DON’T try to remove ear wax. Ear wax helps protect your ear canal from infection. • If you think the ear canal is blocked by ear wax, consult your healthcare provider rather than trying to remove it yourself. CONSULT your healthcare provider about using commercial, alcohol-based ear drops or a 1:1 mixture of rubbing alcohol and white vinegar after swimming. • Drops should not be used by people with ear tubes, damaged ear drums, outer ear infection, or ear drainage (pus or liquid coming from the ear). CONSULT your healthcare provider if your ears are itchy, flaky, swollen, or painful, or if you have drainage from them. For more info … About Recreational Water Illness and Injury Prevention Week, visit: http://www.cdc.gov/healthywater/swimming/rwi/ rwi-prevention-week/index.html From CDC about recreational water illnesses, visit: http://www.cdc.gov/healthywater/swimming/rwi/ For your patients about swimmer’s ear, visit: • http://www.cdc.gov/healthywater/swimming/ rwi/illnesses/swimmers-ear.html or • www.entnet.org/HealthInformation/swimmersEar.cfm Emily Piercefield, MD, DVM; Sarah Collier, MPH; Michele Hlavsa, RN, MPH; Ken Kazahaya, MD, MBA; Evelyn Kluka, MD; and Michael Beach, PhD Editor’s Note: Recently the CDC contacted the Academy office to request our participation in an observance week with a focus on preventing swimmer’s ear. The following piece is offered for members to share with your primary care referral list as an educational outreach tool on how to avoid this common infection and with that cut down on the need for treatment of a preventable disease and the use of antibiotics. Temperatures are warming up outside, and swimming season has started in many parts of the country. Along with increased recreational water activity comes swimmer’s ear or acute otitis externa (AOE). This year’s Recreational Water Illness and Injury Prevention Week (RWIIPW), May 23–29, focused on this condition’s prevention. AOE is a common problem for recreational water users of all ages, potentially resulting in ear pain, medical expenses, lost days of work, and missed social activities. During RWIIPW 2011, the Centers for Disease Control and Prevention’s (CDC) Healthy Swimming Program and its partners provided the public with information and recommendations on how to prevent swimmer’s ear. Now is a prime time to talk with your patients about some simple ways to prevent AOE. Studies have demonstrated that AOE is more likely to occur among swimmers, and that high ambient temperature and humidity are predisposing factors. The longer swimmers are in the water and the more frequently they submerge their heads while swimming, the more at risk they are for AOE. Exposing the skin of the external ear canal to water, particularly for prolonged periods, can lead to skin maceration, making the external ear canal more vulnerable to minor trauma and infection. Minor trauma could be caused by anything inserted in the macerated ear canal such as cotton-tip swabs, hearing aids, other foreign objects, or even one’s own finger when scratching itchy ears. Water exposure also can wash away protective cerumen, which normally serves as a water-repellent coating for the skin of the external ear canal and provides some antimicrobial protection. Some research indicates that frequent showering or bathing increases risk for AOE, although other investigations did not find an association. Soaps, shampoos, and chlorine from pool water might irritate the skin of the external ear canal and also contribute to the loss of protective cerumen. Patients with underlying skin conditions (e.g., eczema or seborrheic dermatitis) or with comorbid conditions (e.g., diabetes or immunosuppression) are at particular risk for getting AOE. In rare cases, infection can progress to necrotizing “malignant” otitis externa, particularly among immunocompromised patients. A recent CDC analysis estimated that 2.4 million U.S. healthcare visits result in a diagnosis of AOE annually (8.1 visits/1,000 population), affecting at least one in 123 persons each year. In 2007, one in 324 emergency department visits and one in 481 ambulatory care clinic visits resulted in a diagnosis of AOE. Rates of ambulatory care visits for AOE from 2003 to 2007 were highest among children aged 5 to 9 years (18.6/1,000) and 10 to 14 years (15.8/1,000). However, 53 percent of ambulatory care AOE visits are by adults 20 years or older (5.3/1,000). Incidence peaks during the summer months and is highest (9.1/1,000) in the South (as defined by the U.S. Census Bureau). Nonhospitalized visits for AOE cost an estimated $498 million in direct healthcare costs and at least 598,000 hours of ambulatory care clinicians’ time annually. Although AOE is generally a mild illness, it is a frequently diagnosed condition responsible for a substantial burden in terms of healthcare dollars and clinicians’ time. AOE is a potentially preventable disease, and the burden can be reduced. The literature is lacking in scientific studies on preventive measures, so we rely instead on reducing established predisposing factors. Strategies for preventing AOE involve preventing or limiting the ear canal’s exposure to water and maintaining a healthy barrier (cerumen and skin) against infection in the external ear canal. See “Preventing AOE” on this page for prevention messages to share with patients in addition to using bathing caps or ear plugs to minimize the amount of water that enters the ear canal. Clinicians might recommend the use of alcohol-based ear solutions after water exposure for persons with recurring episodes of AOE as long as the tympanic membrane is intact and no ear tubes or acute infection are present.
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Emily Piercefield, MD, DVM; Sarah Collier, MPH; Michele Hlavsa, RN, MPH; Ken Kazahaya, MD, MBA; Evelyn Kluka, MD; and Michael Beach, PhD
Editor’s Note: Recently the CDC contacted the Academy office to request our participation in an observance week with a focus on preventing swimmer’s ear. The following piece is offered for members to share with your primary care referral list as an educational outreach tool on how to avoid this common infection and with that cut down on the need for treatment of a preventable disease and the use of antibiotics.
Temperatures are warming up outside, and swimming season has started in many parts of the country. Along with increased recreational water activity comes swimmer’s ear or acute otitis externa (AOE).
This year’s Recreational Water Illness and Injury Prevention Week (RWIIPW), May 23–29, focused on this condition’s prevention. AOE is a common problem for recreational water users of all ages, potentially resulting in ear pain, medical expenses, lost days of work, and missed social activities. During RWIIPW 2011, the Centers for Disease Control and Prevention’s (CDC) Healthy Swimming Program and its partners provided the public with information and recommendations on how to prevent swimmer’s ear. Now is a prime time to talk with your patients about some simple ways to prevent AOE.
Studies have demonstrated that AOE is more likely to occur among swimmers, and that high ambient temperature and humidity are predisposing factors.
The longer swimmers are in the water and the more frequently they submerge their heads while swimming, the more at risk they are for AOE. Exposing the skin of the external ear canal to water, particularly for prolonged periods, can lead to skin maceration, making the external ear canal more vulnerable to minor trauma and infection.
Minor trauma could be caused by anything inserted in the macerated ear canal such as cotton-tip swabs, hearing aids, other foreign objects, or even one’s own finger when scratching itchy ears. Water exposure also can wash away protective cerumen, which normally serves as a water-repellent coating for the skin of the external ear canal and provides some antimicrobial protection. Some research indicates that frequent showering or bathing increases risk for AOE, although other investigations did not find an association. Soaps, shampoos, and chlorine from pool water might irritate the skin of the external ear canal and also contribute to the loss of protective cerumen. Patients with underlying skin conditions (e.g., eczema or seborrheic dermatitis) or with comorbid conditions (e.g., diabetes or immunosuppression) are at particular risk for getting AOE. In rare cases, infection can progress to necrotizing “malignant” otitis externa, particularly among immunocompromised patients.
A recent CDC analysis estimated that 2.4 million U.S. healthcare visits result in a diagnosis of AOE annually (8.1 visits/1,000 population), affecting at least one in 123 persons each year. In 2007, one in 324 emergency department visits and one in 481 ambulatory care clinic visits resulted in a diagnosis of AOE. Rates of ambulatory care visits for AOE from 2003 to 2007 were highest among children aged 5 to 9 years (18.6/1,000) and 10 to 14 years (15.8/1,000). However, 53 percent of ambulatory care AOE visits are by adults 20 years or older (5.3/1,000). Incidence peaks during the summer months and is highest (9.1/1,000) in the South (as defined by the U.S. Census Bureau). Nonhospitalized visits for AOE cost an estimated $498 million in direct healthcare costs and at least 598,000 hours of ambulatory care clinicians’ time annually.
Although AOE is generally a mild illness, it is a frequently diagnosed condition responsible for a substantial burden in terms of healthcare dollars and clinicians’ time. AOE is a potentially preventable disease, and the burden can be reduced. The literature is lacking in scientific studies on preventive measures, so we rely instead on reducing established predisposing factors.
Strategies for preventing AOE involve preventing or limiting the ear canal’s exposure to water and maintaining a healthy barrier (cerumen and skin) against infection in the external ear canal. See “Preventing AOE” on this page for prevention messages to share with patients in addition to using bathing caps or ear plugs to minimize the amount of water that enters the ear canal. Clinicians might recommend the use of alcohol-based ear solutions after water exposure for persons with recurring episodes of AOE as long as the tympanic membrane is intact and no ear tubes or acute infection are present.