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CME / CE

Short or Long Course of Antibiotics for Otitis Media?

  • Authors: News Author: Beth Skwarecki
    CME Author: Charles P. Vega, MD
  • CME / CE Released: 2/1/2017
  • THIS ACTIVITY HAS EXPIRED
  • Valid for credit through: 2/1/2018
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Target Audience and Goal Statement

This article is intended for primary care clinicians, otolaryngologists, nurses, pharmacists, and other clinicians who care for children with acute otitis media (AOM).

The goal of this activity is to provide medical news to primary care clinicians and other healthcare professionals in order to enhance patient care.

Upon completion of this activity, participants will be able to:

  1. Assess current guidelines regarding the treatment of AOM among children
  2. Compare shorter vs longer courses of antibiotics in the management of AOM among children


Disclosures

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Medscape, LLC, encourages Authors to identify investigational products or off-label uses of products regulated by the US Food and Drug Administration, at first mention and where appropriate in the content.


Author(s)

  • Beth Skwarecki

    Freelance writer, Medscape

    Disclosures

    Disclosure: Beth Skwarecki has disclosed no relevant financial relationships.

Editor(s)

  • Robert Morris, PharmD

    Associate CME Clinical Director, Medscape, LLC

    Disclosures

    Disclosure: Robert Morris, PharmD, has disclosed no relevant financial relationships.

CME Author(s)

  • Charles P. Vega, MD

    Health Sciences Clinical Professor of Family Medicine, University of California, Irvine, School of Medicine, Irvine, California

    Disclosures

    Disclosure: Charles P. Vega, MD, has disclosed the following relevant financial relationships:
    Served as an advisor or consultant for: Allergan, Inc.; McNeil Consumer Healthcare
    Served as a speaker or a member of a speakers bureau for: Shire 

CME Reviewer/Nurse Planner

  • Amy Bernard, MS, BSN, RN-BC

    Lead Nurse Planner, Medscape, LLC

    Disclosures

    Disclosure: Amy Bernard, MS, BSN, RN-BC, has disclosed no relevant financial relationships.


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CME / CE

Short or Long Course of Antibiotics for Otitis Media?

Authors: News Author: Beth Skwarecki CME Author: Charles P. Vega, MDFaculty and Disclosures
THIS ACTIVITY HAS EXPIRED

CME / CE Released: 2/1/2017

Valid for credit through: 2/1/2018

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Clinical Context

Acute otitis media (AOM) remains a common infection among children, and it may rarely lead to serious health consequences. The latest recommendations regarding the management of AOM among children from the American Academy of Pediatrics (AAP) were published in the journal Pediatrics[1] in March 2013.

One of the most controversial issues in the management of pediatric AOM is the use of antibiotics. The recommendations advocate for antibiotic treatment among children between ages 6 and 23 months with AOM who have symptoms of ear pain for at least 48 hours or a temperature of 39°C or higher. Children in this age group with bilateral AOM should be treated with antibiotics regardless of their symptoms.

However, even among these young children, antibiotics for AOM may be withheld if no severe symptoms are present, and a mechanism is in place to reevaluate the child and start antibiotics if there is no improvement in symptoms or if symptoms worsen within 48 to 72 hours. This same rule generally applies for children at age 24 months and older.

Amoxicillin was considered the treatment of choice for AOM in the AAP recommendations. However, the question of the duration of treatment with antibiotics for AOM among children has been controversial. The current study by Hoberman and colleagues addresses this issue with results from a new randomized trial.

Study Synopsis and Perspective

A 10-day course of antibiotics worked better than a 5-day course for young children with ear infections in a randomized controlled trial of 520 children at 2 centers. The 5-day course did not result in any fewer cases of antibiotic-resistant infections or adverse events.

Alejandro Hoberman, MD, from the Department of Pediatrics at the University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, and colleagues report their findings in an article published in the December 22 issue of the New England Journal of Medicine.[2]

"For now, 10 days of amoxicillin-clavulanate for children younger than 2 years of age who have a definite diagnosis of [AOM] seems to be a reasonable option," Margaret A. Kenna, MD, MPH, from the Department of Otolaryngology and Communication Enhancement and Boston Children's Hospital, Boston, Massachusetts, writes in an accompanying editorial.[3]

The trial enrolled children between 6 and 23 months old -- the most likely age group to have treatment failure and recurrence. To be enrolled, the children had to have a diagnosis of AOM based on 3 criteria: the presence of middle ear effusion, moderate or marked bulging of the tympanic membrane or slight bulging along with pain or redness, and a recent score of 3 or more on the 14-point Acute Otitis Media-Severity of Symptoms scale. Tugging of ears, crying, irritability, difficulty sleeping, diminished activity, diminished appetite, and fever are the criteria on that scale. All children had had at least 2 doses of pneumococcal conjugate vaccine.

Families were given 2 bottles of medicine: one of amoxicillin and clavulanate (90 and 6.4 mg/kg body weight) for the first 5 days and a second bottle containing either the same medicine or a placebo of the same color, texture, odor, and taste.

The investigators followed up with the child's family twice in the next 2 weeks and saw the child for visits every 6 weeks through the rest of the respiratory infection season. Whenever a child contracted another ear infection, he or she was treated with the same regimen as before (either 5 or 10 days). After 2 recurrences, however, or any time treatment failed, the child was given a full 10-day dose of amoxicillin-clavulanate, ceftriaxone, or cefdinir.

Clinical failure was more common in the children receiving the 5-day course than in those receiving the 10-day course (34% vs 16%; difference of 17 percentage points; 95% confidence interval, 9-25 percentage points). To prevent 1 episode of clinical failure, the number needed to treat with a 10-day course is 6.

After the initial treatment, both groups of children had less penicillin-susceptible Streptococcus pneumoniae in their nasopharynx. Susceptible and nonsusceptible strains of Haemophilus influenzae remained the same. Adverse events were not significantly different between the groups.

Aside from treatment, children were more likely to have clinical failure if they spent more than 10 hours per week with at least 3 other children (P =.02) and if they initially presented with infections in both ears (P <.001).

The authors note that the results cannot be generalized to children older than the children in this study.

Dr Kenna, who was not involved in the study, notes that a Cochrane review on this topic found that some studies showed no difference between long and short courses of antibiotics. However, many of those studies were not blinded, did not use strict criteria for diagnosis or outcome measures, and did not directly compare the same drug in different durations.

Dr Hoberman and a coauthor have received consulting fees from Genocea Biosciences. Dr Hoberman also has received grant support from Ricoh Innovations and holding pending patents related to the development of a reduced clavulanate concentration version of amoxicillin-clavulanate potassium and the development of a method and apparatus for aiding in the diagnosis of otitis media by classifying tympanic membrane images. The remaining authors have disclosed no relevant financial relationships.

N Engl J Med. 2016;375:2446-2456, 2492-2493.

Study Highlights

  • The study was conducted at 2 US centers. Children eligible for study participation were between 6 and 23 months old and had received at least 2 doses of the pneumococcal vaccine. All children in the study had AOM.
  • AOM was diagnosed with use of standard criteria. Parents were asked to judge the severity of their child's symptoms at baseline.
  • Children were randomly assigned to receive a 10-day or a 5-day course of amoxicillin-clavulanate. Participants in the 5-day group received placebo for 5 days after active treatment. The study was randomized and double blinded.
  • Participants were evaluated by telephone once on days 4 to 6, and then again once in the office on days 12 to 14. Parents recorded children's symptoms scores daily.
  • Clinical failure was defined as worsening symptoms or signs of infection during follow-up, or if participants did not have complete resolution of AOM symptoms and signs by the end of their treatment course. Children with clinical failure were treated with a rescue course of antibiotics.
  • Secondary outcomes included recurrence of otitis media, rates of nasopharyngeal colonization with bacteria, and parental satisfaction with treatment.
  • The study was powered to demonstrate noninferiority in comparing the 5-day vs the 10-day antibiotic regimens.
  • 520 children underwent random selection. Approximately half of children were between 6 and 11 months old, and there was a slight preponderance of boys in the cohort. Nearly half of children had bilateral AOM.
  • Clinical failure was noted in 34% of the 10-day treatment group vs 16% of the 5-day treatment group, a significant difference with a number needed to treat of 6 to prevent 1 additional case of clinical failure.
  • Children with more severe illness were particularly likely to benefit from a 10-day course of antibiotics.
  • 91% of children in the 10-day treatment group experienced at least a 50% reduction in AOM symptoms by the end of treatment, compared with only 80% of the 5-day treatment group.
  • More than 60% of children had a residual middle ear effusion after treatment, with no significant difference between the 10-day group and the 5-day group.
  • The overall rate of recurrence of otitis media was similar in the 2 groups, although children with residual effusion tended to have higher rates of AOM recurrence regardless of their study treatment.
  • Rates of nasopharyngeal colonization with bacteria with penicillin resistance were similar in the 2 treatment groups.
  • Rates of adverse effects were similar in the 10-day and 5-day treatment groups, and there was no difference in parental satisfaction with treatment.

Clinical Implications

  • Current recommendations state that children between 6 and 23 months old with severe symptoms of unilateral AOM or bilateral AOM with or without symptoms should receive antibiotics. Children in this age range without severe symptoms of unilateral AOM may be observed without antibiotics, as long as close follow-up can be arranged. Amoxicillin is the antibiotic of choice for AOM.
  • The current study by Hoberman and colleagues demonstrates that a 5-day course of amoxicillin-clavulanate is associated with a higher risk for clinical failure vs a 10-day course among young children with AOM. There was no difference in the rates of middle ear effusion after treatment, recurrence of AOM, or colonization with resistant bacteria in comparing the 5-day vs the 10-day treatment group.
  • Implications for the Healthcare Team: The natural inclination of clinicians is to give the shortest course of treatment needed to reduce patients' symptoms and improve prognosis. In AOM among young children, the healthcare team should advise patients that a longer course of antibiotics may be more beneficial.

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