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Updated Guidelines for the Management of Acute Otitis Media in Children by the Italian Society of Pediatrics: Diagnosis. Pediatr Infect Dis J 2019; 38:S3-S9. [PMID: 31876600 DOI: 10.1097/inf.0000000000002429] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND In recent years, new progress has been made regarding the diagnosis, treatment and prevention of acute otitis media (AOM). The Italian Pediatric Society therefore decided to issue an update to the previous guidelines published in 2010. METHODS Literature searches were conducted on MEDLINE by Pubmed, including studies in children, in English or Italian, published between January 1, 2010, and December 31, 2018. The quality of the included studies was assessed using the grading of recommendations, assessment, development and evaluations (GRADE) methodology. In particular, the quality of the systematic reviews was evaluated using the AMSTAR 2 appraisal tool. The guidelines were formulated using the GRADE methodology by a multidisciplinary panel of experts. RESULTS The diagnosis of AOM is based on acute clinical symptoms and otoscopic evidence; alternatively, the presence of otorrhea associated with spontaneous tympanic membrane perforation allows the AOM diagnosis. The diagnosis of AOM must be certain and the use of a pneumatic otoscope is of fundamental importance. As an alternative to the pneumatic otoscope, pediatricians can use a static otoscope and a tympanometer. To objectively establish the severity of the episode for the formulation of a correct treatment program, an AOM severity scoring system taking into account clinical signs and otoscopic findings was developed. CONCLUSIONS The diagnosis of AOM is clinical and requires the introduction of specific medical training programs. The use of pneumatic otoscopes must be promoted, as they are not sufficiently commonly used in routine practice in Italy.
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Lavere PF, Ohlstein JF, Smith SP, Szeremeta W, Pine HS. Preventing unnecessary tympanostomy tube placement in children. Int J Pediatr Otorhinolaryngol 2019; 122:40-43. [PMID: 30951971 DOI: 10.1016/j.ijporl.2019.03.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 03/24/2019] [Accepted: 03/26/2019] [Indexed: 10/27/2022]
Abstract
OBJECTIVE In 2013 the American Academy of Otolaryngology published tympanostomy tube guidelines for children; Action Statement 6 recommends against tube placement without middle ear effusion (MEE) at time of assessment. To date, little research has directly evaluated this recommendation in reducing the need for ear tubes. We evaluated the effectiveness of this recommendation and potential risk factors that influence the success of watchful waiting. METHODS Retrospective chart review collecting demographics, daycare status, smoking exposure, and time of year of visit. Children aged 6 months to 12 years without MEE on presentation, but with 3 or more episodes of acute otitis media (AOM) in 6 months or 4 or more episodes in 12 months, were assigned to watchful waiting (WW) treatment. These patients were followed every 4 months or returned sooner with additional infections. Any continued AOM, or MEE on follow up leading to tube placement, defined WW failure. RESULTS 123 patients met criteria, with 81 still in WW to date (66% success rate). 42 children failed WW and received tympanostomy tubes (34% failure rate). There were no statistically significant associations between age, race, gender, smoking exposure, daycare, or month of presentation between children who failed WW compared to children receiving tubes. CONCLUSIONS Tympanostomy tube guidelines mitigate unnecessary tube placement in a majority of children with recurrent AOM without MEE. To our knowledge, this is the first study supporting the 2013 recommendations, with a 66% success rate. Additionally, no significant associations between modifying risk factors in those who failed watchful waiting were identified.
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Affiliation(s)
- Philip F Lavere
- University of Texas Medical Branch Department of Otolaryngology, 7.104 John Sealy Annex, 301 University Boulevard, Galveston, TX, 77555, USA.
| | - Jason F Ohlstein
- University of Texas Medical Branch Department of Otolaryngology, 7.104 John Sealy Annex, 301 University Boulevard, Galveston, TX, 77555, USA. https://www.utmb.edu/oto/
| | - Steven P Smith
- University of Texas Medical Branch Department of Otolaryngology, 7.104 John Sealy Annex, 301 University Boulevard, Galveston, TX, 77555, USA.
| | - Wasyl Szeremeta
- University of Texas Medical Branch Department of Otolaryngology, 7.104 John Sealy Annex, 301 University Boulevard, Galveston, TX, 77555, USA.
| | - Harold S Pine
- University of Texas Medical Branch Department of Otolaryngology, 7.104 John Sealy Annex, 301 University Boulevard, Galveston, TX, 77555, USA.
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High-dose amoxicillin with clavulanate for the treatment of acute otitis media in children. ScientificWorldJournal 2014; 2013:965096. [PMID: 24523659 PMCID: PMC3910352 DOI: 10.1155/2014/965096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2013] [Accepted: 12/22/2013] [Indexed: 11/17/2022] Open
Abstract
Objective. This study uses the acute otitis media clinical practice guideline proposed in 2004 as a reference to evaluate whether antibiotics doses that are in line with the recommendations lead to better prognosis. The study also attempts to clarify possible factors that influence the outcome. Study Design. Retrospective cohort study. Subjects and Methods. A total of 400 children with acute otitis media were enrolled. The dosage of amoxicillin was considered to be appropriate when in accord with clinical practice guidelines, that is, 80–90 mg/kg/day. The outcome was defined according to the description of tympanic membrane on medical records. Multivariate logistic regression was used to analyze the relationship between antibiotic dosage and prognosis after adjusting for baseline factors. Results. The majority of prescriptions were under dosage (89.1%) but it was not noticeably associated with outcome (P = 0.41). The correlation between under dosage and poor prognosis was significant in children below 20 kg with bilateral acute otitis media (odds ratio 1.63; 95% CI 1.02–2.59, P = 0.04). Conclusion. Treating acute otitis media in children, high-dose amoxicillin with clavulanate as recommended in the clinical practice guideline was superior to conventional doses only in children under 20 kg with bilateral diseases.
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Abstract
OBJECTIVE We sought to determine if use of more stringent diagnostic criteria for acute otitis media (AOM) than currently advocated by the American Academy of Pediatrics, tympanocentesis and pathogen-specific antibiotic treatment (individualized care) would result in reducing the incidence of recurrent AOM and consequent tympanostomy tube surgery. METHODS A 5-year longitudinal, prospective study in Rochester, NY, was conducted from July 2006 to July 2011 involving 254 individualized care children. When this individualized care group developed symptoms of AOM, strict diagnostic criteria were applied and a tympanocentesis was performed. Pathogen resistance to empiric high-dose amoxicillin/clavulanate (80 mg/kg of amoxicillin component) caused a change in antibiotic to an optimized choice. Legacy controls (n = 208) were diagnosed with the same diagnostic criteria by the same physicians as the individualized care group and received the same empiric amoxicillin/clavulanate (80 mg/kg of amoxicillin component) but no tympanocentesis or change in antibiotic. Community control children (n = 1020) were diagnosed according to current American Academy of Pediatrics guidelines and treated with high-dose amoxicillin (80 mg/kg) without tympanocentesis as guideline recommended. RESULTS 5.9% of children of the individualized care group compared with 14.4% of Legacy controls and 27.3% of community controls became otitis prone, defined as 3 episodes of AOM within a 6-month time span or 4 AOM episodes within a 12-month time span (P < 0.0001). 2.4% of the individualized care group compared with 6.3% of Legacy controls, and 14.8% of community controls received tympanostomy tubes (P < 0.0001). CONCLUSIONS Individualized care of AOM significantly reduces the frequency of AOM and tympanostomy tube surgery. Use of strict diagnostic criteria for AOM and empiric antibiotic treatment using evidence-based knowledge of circulating otopathogens and their antimicrobial susceptibility profile also produces improved outcomes.
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Affiliation(s)
- Michael E. Pichichero
- Center for Infectious Diseases and Immunology, Rochester General Hospital Research Institute, Rochester NY
| | | | - Anthony Almudevar
- Department of Biostatistics and Computational Biology, University of Rochester, Rochester NY
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Lieberthal AS, Carroll AE, Chonmaitree T, Ganiats TG, Hoberman A, Jackson MA, Joffe MD, Miller DT, Rosenfeld RM, Sevilla XD, Schwartz RH, Thomas PA, Tunkel DE. The diagnosis and management of acute otitis media. Pediatrics 2013; 131:e964-99. [PMID: 23439909 DOI: 10.1542/peds.2012-3488] [Citation(s) in RCA: 751] [Impact Index Per Article: 68.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
This evidence-based clinical practice guideline is a revision of the 2004 acute otitis media (AOM) guideline from the American Academy of Pediatrics (AAP) and American Academy of Family Physicians. It provides recommendations to primary care clinicians for the management of children from 6 months through 12 years of age with uncomplicated AOM. In 2009, the AAP convened a committee composed of primary care physicians and experts in the fields of pediatrics, family practice, otolaryngology, epidemiology, infectious disease, emergency medicine, and guideline methodology. The subcommittee partnered with the Agency for Healthcare Research and Quality and the Southern California Evidence-Based Practice Center to develop a comprehensive review of the new literature related to AOM since the initial evidence report of 2000. The resulting evidence report and other sources of data were used to formulate the practice guideline recommendations. The focus of this practice guideline is the appropriate diagnosis and initial treatment of a child presenting with AOM. The guideline provides a specific, stringent definition of AOM. It addresses pain management, initial observation versus antibiotic treatment, appropriate choices of antibiotic agents, and preventive measures. It also addresses recurrent AOM, which was not included in the 2004 guideline. Decisions were made on the basis of a systematic grading of the quality of evidence and benefit-harm relationships. The practice guideline underwent comprehensive peer review before formal approval by the AAP. This clinical practice guideline is not intended as a sole source of guidance in the management of children with AOM. Rather, it is intended to assist primary care clinicians by providing a framework for clinical decision-making. It is not intended to replace clinical judgment or establish a protocol for all children with this condition. These recommendations may not provide the only appropriate approach to the management of this problem.
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Affiliation(s)
- Allan S Lieberthal
- American Academy of Pediatrics and American Academy of Family Physicians
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Andrade AL, Toscano CM, Minamisava R, Costa PS, Andrade JG. Pneumococcal disease manifestation in children before and after vaccination: what's new? Vaccine 2012; 29 Suppl 3:C2-14. [PMID: 21896349 DOI: 10.1016/j.vaccine.2011.06.096] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Accepted: 06/24/2011] [Indexed: 12/25/2022]
Abstract
Pneumococcal infections remain a relevant cause of morbidity and mortality in children, especially in countries where vaccination has not been introduced. In contrast to the common belief by many pediatricians, the most important pneumococcal infections are of the respiratory tract and not invasive diseases. The recent pandemic of the H1N1 virus prompted studies to better understand the interaction between the influenza virus, Streptococcus pneumoniae, and pneumonia outcomes. Radiological findings of bacteremic pneumonia have been well investigated and besides the typical alveolar consolidation, a broad spectrum of atypical patterns has been reported. Molecular techniques, such as real-time polymerase chain reaction (PCR), can improve the detection of S. pneumoniae in sterile fluids, mainly in regions where previous antibiotic therapy is a common practice. In the post vaccination era, new manifestations of pneumococcal invasive disease, such as hemolytic uremic syndrome, have increased in association with parapneumonic empyema. Moreover, serotypes not included in PCV7, particularly serotypes 1, 3, 5, 7F, and 19A, have been among the most common isolates in pneumococcal disease. In Latin America, pneumococcal primary peritonitis has been described as an important clinical syndrome in a growing proportion of patients, mainly in girls. The development of newer and more specific diagnostic markers to distinguish bacterial and viral pneumonia are urgently sought, and will be especially pertinent after the introduction of pneumococcal conjugate vaccines with expanded serotypes. Such markers would minimize inappropriate diagnosis of false positive cases and treatment with antibacterial agents, while increasing positive predictive values for diagnosis of bacterial pneumonia. The extension of serotype coverage with the new conjugate vaccines is promising for pneumococcal infections and coverage against antibiotic-resistant strains.
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Affiliation(s)
- Ana Lucia Andrade
- Department of Community Health, Institute of Tropical Pathology and Public Health, Federal University of Goias, Rua 235, esq 1a. Avenida, Setor Leste Universitário, 74605-050 Goiania, Goias, Brazil.
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Casey JR, Block S, Puthoor P, Hedrick J, Almudevar A, Pichichero ME. A simple scoring system to improve clinical assessment of acute otitis media. Clin Pediatr (Phila) 2011; 50:623-9. [PMID: 21471024 DOI: 10.1177/0009922811398391] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To evaluate an easy to use 10-point scoring system in clinical assessment of acute otitis media (AOM). Study design. Symptoms of AOM observed by validated otoscopists were tabulated and scored with a 10-point and a 30-point system at acute onset of illness and at the test-of-cure (TOC) 3 weeks later. RESULTS A total of 330 children (mean age = 13.1 months) with AOM were studied. At AOM onset, the mean 10-point and 30-point scores; were highly correlated (P < .001). At TOC, 256 children were cured, 69 failed, and 5 were lost to follow-up. The 10-point scores were 0.5 and 4.4 for children with cure and failure. The 10-point score had a sensitivity of 87%, specificity of 98%, positive predictive value of 91%, and negative predictive value of 97% compared with the diagnosis by validated otoscopists. CONCLUSION A simple, easy-to-use 10-point AOM scoring system was shown to discriminate AOM cure and failure at TOC.
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Abstract
Acute otitis media and acute bacterial sinusitis are 2 of the most common indications for antimicrobial agents in children. Together, they are responsible for billions of dollars of health care expenditures. The pathogenesis of the 2 conditions is identical. In the majority of children with each condition, a preceding viral upper respiratory tract infection predisposes to the development of the acute bacterial complication. It has been shown that viral upper respiratory tract infection predisposes to the development of acute otitis media in 37% of cases. Currently, precise microbiologic diagnosis of acute otitis media and acute bacterial sinusitis requires performance of tympanocentesis in the former and sinus aspiration in the latter. The identification of a virus from the nasopharynx in either case does not obviate the need for antimicrobial therapy. Furthermore, nasal and nasopharyngeal swabs are not useful in predicting the results of culture of the middle ear or paranasal sinus. However, it is possible that a combination of information regarding nasopharyngeal colonization with bacteria and infection with specific viruses may inform treatment decisions in the future.
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Affiliation(s)
- Ellen R Wald
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin 53792, USA.
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Affiliation(s)
- Nader Shaikh
- Division of General Academic Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
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Diagnostic inaccuracy and subject exclusions render placebo and observational studies of acute otitis media inconclusive. Pediatr Infect Dis J 2008; 27:958-62. [PMID: 18845985 DOI: 10.1097/inf.0b013e318179a2ac] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Diagnostic accuracy and appropriate inclusion/exclusion criteria representative of children at greatest risk is of paramount importance in trials to evaluate placebo or observation as an option for acute otitis media (AOM) management. METHODS Twelve observational studies spanning the time frame 1958-2005 and 13 natural history studies spanning the time frame 1968-2006 were evaluated for the diagnostic criteria, inclusion criteria, and exclusion criteria applied within the study design. RESULTS Although a bulging or full tympanic membrane (TM) with effusion is the best indication of a diagnosis of bacterial AOM based on tympanocentesis findings, few observational and natural history studies required a bulging TM. Examination of subject inclusion criteria showed that many subjects did not have AOM but rather had no middle ear disease at all or they had otitis media with effusion. Exclusion criteria of subjects were also remarkable. Frequently children <2 years old were excluded; mean age among the studies reflected an older age group, unlike the true epidemiology of AOM. Otitis prone children, those with severe disease, with a bulging TM, with fever, with a definite need for antibiotics, with recent antibiotic treatment, with recent AOM, or with perforation of the TM were often excluded. CONCLUSIONS Guidelines and some authorities have overlooked or discounted the importance of the issues of inaccurate diagnosis on study entry, broad inclusion criteria, and the creation of bias in exclusion criteria among placebo/natural history trials in AOM. The current data favoring observation of children with AOM should be reconsidered until better studies are conducted.
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Pichichero ME, Casey JR. Comparison of study designs for acute otitis media trials. Int J Pediatr Otorhinolaryngol 2008; 72:737-50. [PMID: 18400312 DOI: 10.1016/j.ijporl.2008.02.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2007] [Revised: 02/22/2008] [Accepted: 02/26/2008] [Indexed: 11/18/2022]
Abstract
BACKGROUND A framework for evaluating the efficacy of antibiotics in development as well as those currently approved for acute otitis media (AOM) is needed. OBJECTIVE Review strengths and limitations of various antibiotic trial designs and their outcome measures. METHODS A review of 157 published trials involving 36,710 subjects for the treatment of AOM. RESULTS AOM trials have three designs: (1) clinical, clinical diagnosis and assessment of outcomes; (2) single tympanocentesis, microbiologic diagnosis (by middle ear fluid culture) and clinical assessment of outcomes; and (3) double tympanocentesis, microbiologic diagnosis and microbiologic outcome assessment. Identifiable strengths and limitations of each design are reviewed. Case definitions for entry of children in trials of AOM vary widely. The lack of stringent diagnostic criteria in a clinical design allows for inclusion of a significant proportion of children with a non-bacterial etiology (i.e., viral AOM or otitis media with effusion). Tympanocentesis increases diagnostic accuracy at study entry; however, the procedure is confounding because of its potentially therapeutic benefit and the procedure is not performed in a uniform manner. A second tympanocentesis allows a high sensitivity to detect microbiologic eradication, but it does not correlate with clinical outcomes in half of the cases. The timing of outcome assessment also varies widely among trials. CONCLUSIONS Improved clinical diagnosis criteria for AOM are needed to enhance specificity; emphasis on a bulging tympanic membrane has the best evidence base. Tympanocentesis within study designs has merits. At study entry it assures diagnostic accuracy but may alter outcomes and it is useful to document microbiologic outcomes but lacks specificity for clinical outcomes. For all designs, test of cure assessment 2-7 days after completion of therapy seems most appropriate.
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Affiliation(s)
- Michael E Pichichero
- University of Rochester, School of Medicine, Department of Microbiology/Immunology, 601 Elmwood Avenue, Box 672, Rochester, NY 14642, United States.
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Powers JH. Diagnosis and Treatment of Acute Otitis Media: Evaluating the Evidence. Infect Dis Clin North Am 2007; 21:409-26, vi. [PMID: 17561076 DOI: 10.1016/j.idc.2007.03.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Acute otitis media (AOM) is one of the most common illnesses for which children in the United States receive an antimicrobial agent. Of the six recommendations offered in recent guidelines for treatment of AOM, only one, the assessment and treatment of pain with analgesics, is based on strong evidence. This article reviews the diagnosis of AOM and the accuracy of various signs and symptoms in indicating a bacterial origin, the data on the effect of antimicrobial agents compared with placebo in the treatment of AOM, and the gaps in knowledge that should be addressed by future research and clinical trials.
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Affiliation(s)
- John H Powers
- Scientific Applications International Corporation in support of the Collaborative Clinical Research Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, USA.
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Abstract
The management of acute otitis media (AOM) in childhood has evolved considerably during recent years as a result of the new insights provided by publication (in 2004) of the American Academy of Pediatrics and the American Academy of Family Physicians guidelines for the treatment of AOM. The new treatment guidelines establish a clear hierarchy among the various antibacterials used in the treatment of this disease and also the use of an age-stratified approach to AOM by recommending an observation strategy ('watchful waiting') without the use of antibacterials for some groups of patients with AOM. Infants and young children aged <2 years represent a target population characterized by a high incidence of AOM (and in particular of recurrent disease), lack of anatomic and physiologic maturity of airways, age-related immune humoral and cellular deficiencies, the presence of antibacterial-resistant pathogens, and a less efficient response to antibacterial treatment. Presently, the evidence accumulated in the literature is not sufficient to conclude that the role of antibacterials is only minimal in the management of AOM and that the watchful waiting policy is the most appropriate choice for patients aged <2 years with a certain AOM diagnosis. However, adherence to such a policy in patients with an uncertain or questionable AOM diagnosis and/or mild-to-moderate symptoms, in addition to its implementation in patients aged >2 years, could reduce substantially the use of antibacterials in children and play a major role in the strategy of decreasing antibacterial resistance.
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Affiliation(s)
- Eugene Leibovitz
- Pediatric Infectious Disease Unit, Soroka University Medical Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
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Chandler SM, Garcia SMS, McCormick DP. Consistency of diagnostic criteria for acute otitis media: a review of the recent literature. Clin Pediatr (Phila) 2007; 46:99-108. [PMID: 17325082 DOI: 10.1177/0009922806297163] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Clinicians use various criteria to diagnose acute otitis media (AOM). Using American Academy of Pediatrics (AAP) guidelines, we reviewed the consistency of AOM diagnosis in clinical trials (1994-2005). Eighty-one percent of the studies required at least one of the three AAP criteria. Only 20% of the 88 studies met all three AAP criteria for a diagnosis. We found no association between the number of criteria met and study quality or industry sponsorship. Better agreement on the definition of AOM using AAP criteria could facilitate a more accurate clinical diagnosis and provide standardization of research and patient care practices.
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Affiliation(s)
- Stephanie M Chandler
- University of Texas Medical Branch, 400 Harbourside Drive, Galveston, TX 77555, USA
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Abstract
Use of PCV7 causes a major shift in the microbiology of AOM towards H influenzae, but the search for the Holy Grail of AOM still remains elusive
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Affiliation(s)
- S L Block
- Kentucky Pediatric Research, Inc, 201 South 5th Street, Bardstown, KY 40004, USA.
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Abstract
In 2004, the Subcommittee on Management of Acute Otitis Media of the American Academy of Pediatrics and American Academy of Family Physicians published evidence-based clinical practice guidelines on the "Diagnosis and Management of Acute Otitis Media." The guidelines included a definition of acute otitis media (AOM) that included three components: 1) a history of acute onset of signs and symptoms; 2) the presence of middle-ear effusion; and 3) signs and symptoms of middle-ear inflammation. An option to observe selected children with AOM for 48 to 72 hours without initial antibiotic therapy was proposed. This option was based on age, severity of illness, and certainty of diagnosis. Despite the changing prevalence of bacterial pathogens and increasing resistance of Streptococcus pneumoniae, amoxicillin remains the first-line antibiotic for initial antibacterial treatment of AOM. The guideline also addresses the management of otalgia, choice of antibiotics after initial treatment failure, and methods for preventing AOM.
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Affiliation(s)
- Allan S Lieberthal
- Keck School of Medicine, University of Southern California, Kaiser Permanente, Panorama City, CA 91402, USA.
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Barenkamp SJ. Implementing guidelines for the treatment of acute otitis media. Adv Pediatr 2006; 53:241-54. [PMID: 17089870 DOI: 10.1016/j.yapd.2006.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The recently published Clinical Practice Guideline for the Diagnosis and Management of Acute Otitis Media represents a sincere effort by the AAP andthe AAFP to provide management guidelines for the practitioner based upon the best scientific evidence available. Despite many years of research and hundreds of clinical studies addressing various aspects of the epidemiology, clinical presentation, and treatment of acute otitis media, important questions remain unaddressed or have been addressed in a less than optimal fashion. These gaps in knowledge and deficiencies in several of the studies that formed the scientific basis for the proposed guidelines are the major reasons behind continued disagreement over certain recommendations. Until more comprehensive and careful analyses can be performed, disagreements are likely to persist. Even so, there is general agreement about most of the recommendations made in these guidelines, and these recommendations will provide a very valuable framework for the practicing physician as he or she cares for children with acute otitis media. To briefly review the major points, first is the critical importance of accurately diagnosing acute otitis media using a combination of clinical findings and observable abnormalities of the tympanic membrane and middle ear space. Particularly important is the differentiation of acute otitis media from otitis media with effusion. Second is the value of treating the pain associated with acute otitis media as a regular component of care, irrespective of any decision concerning antimicrobial treatment. Third is the option, for a select group of older patients with nonsevere disease, of withholding antimicrobial therapy for the first 48 to 72 hours, if close follow-up and active parental involvement can be guaranteed. Fourth is the recommendation that if an antimicrobial agent is used, high-dose amoxicillin (80 to 90 mg/kg/d) is the treatment of choice for most children at the time of initial presentation unless disease is particularly severe or the child has recently failed a previous course of the antibiotic. Finally highlighted is the importance of ongoing education efforts on the part of physicians in advising parents about the things they can do in their households to lessen the risk of future disease.
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Affiliation(s)
- Stephen J Barenkamp
- Department of Pediatrics, St. Louis University School of Medicine, 1465 South Grand Boulevard, St. Louis, MO 63104-1095, USA.
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Le Saux N, Gaboury I, Baird M, Klassen TP, MacCormick J, Blanchard C, Pitters C, Sampson M, Moher D. A randomized, double-blind, placebo-controlled noninferiority trial of amoxicillin for clinically diagnosed acute otitis media in children 6 months to 5 years of age. CMAJ 2005; 172:335-41. [PMID: 15684116 PMCID: PMC545757 DOI: 10.1503/cmaj.1040771] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES Debate continues with respect to a "watch and wait" approach versus immediate antibiotic treatment for the initial treatment of acute otitis media. In this double-blind noninferiority trial, we compared clinical improvement rates at 14 days for children (6 months to 5 years of age) with acute otitis media who were randomly assigned to receive amoxicillin or placebo. METHODS We enrolled healthy children who presented to clinics or the emergency department with a new episode of acute otitis media during the fall and winter months in Ottawa (from December 1999 to the end of March 2002). The children were randomly assigned to receive amoxicillin (60 mg/kg daily) or placebo for 10 days. Telephone follow-up was performed on each of days 1, 2 and 3 and once between day 10 and day 14. The primary outcome was clinical resolution of symptoms, defined as absence of receipt of an antimicrobial (other than the amoxicillin in the treatment group) at any time during the 14-day period. Secondary outcomes were the presence of pain and fever and the activity level in the first 3 days, recurrence rates, and the presence of middle ear effusion at 1 and 3 months. RESULTS According to clinical scoring, 415 of the 512 children who could be evaluated had moderate disease. At 14 days 84.2% of the children receiving placebo and 92.8% of those receiving amoxicillin had clinical resolution of symptoms (absolute difference -8.6%, 95% confidence interval -14.4% to -3.0%). Children who received placebo had more pain and fever in the first 2 days. There were no statistical differences in adverse events between the 2 groups, nor were there any significant differences in recurrence rates or middle ear effusion at 1 and 3 months. INTERPRETATION Our results did not support the hypothesis that placebo was noninferior to amoxicillin (i.e., that the 14-day cure rates among children with clinically diagnosed acute otitis media would not be substantially worse in the placebo group than the treatment group). Nevertheless, delaying treatment was associated with resolution of clinical signs and symptoms in most of the children.
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Affiliation(s)
- Nicole Le Saux
- Department of Pediatrics, Children's Hospital of Eastern Ontario, Ottawa, Ont.
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Gibney KB, Morris PS, Carapetis JR, Skull SA, Smith-Vaughan HC, Stubbs E, Leach AJ. The clinical course of acute otitis media in high-risk Australian Aboriginal children: a longitudinal study. BMC Pediatr 2005; 5:16. [PMID: 15955251 PMCID: PMC1177962 DOI: 10.1186/1471-2431-5-16] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2004] [Accepted: 06/14/2005] [Indexed: 05/03/2023] Open
Abstract
BACKGROUND It is unclear why some children with acute otitis media (AOM) have poor outcomes. Our aim was to describe the clinical course of AOM and the associated bacterial nasopharyngeal colonisation in a high-risk population of Australian Aboriginal children. METHODS We examined Aboriginal children younger than eight years who had a clinical diagnosis of AOM. Pneumatic otoscopy and video-otoscopy of the tympanic membrane (TM) and tympanometry was done every weekday if possible. We followed children for either two weeks (AOM without perforation), or three weeks (AOM with perforation), or for longer periods if the infection persisted. Nasopharyngeal swabs were taken at study entry and then weekly. RESULTS We enrolled 31 children and conducted a total of 219 assessments. Most children had bulging of the TM or recent middle ear discharge at diagnosis. Persistent signs of suppurative OM (without ear pain) were present in most children 7 days (23/30, 77%), and 14 days (20/26, 77%) later. Episodes of AOM did not usually have a sudden onset or short duration. Six of the 14 children with fresh discharge in their ear canal had an intact or functionally intact TM. Perforation size generally remained very small (<2% of the TM). Healing followed by re-perforation was common. Ninety-three nasophyngeal swabs were taken. Most swabs cultured Streptococcus pneumoniae (82%), Haemophilus influenzae (71%), and Moraxella catarrhalis (95%); 63% of swabs cultured all three pathogens. CONCLUSION In this high-risk population, AOM was generally painless and persistent. These infections were associated with persistent bacterial colonisation of the nasopharynx and any benefits of antibiotics were modest at best. Systematic follow up with careful examination and review of treatment are required and clinical resolution cannot be assumed.
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Affiliation(s)
| | - Peter S Morris
- Ear Health and Education Unit, Menzies School of Health Research, Darwin, Australia
- Institute of Advanced Studies, Charles Darwin University, Australia
- Northern Territory Clinical School, Darwin, Australia
| | - Jonathan R Carapetis
- Department of Paediatrics, University of Melbourne and Royal Children's Hospital, Melbourne, Australia
- Murdoch Children's Research Institute, Melbourne, Australia
| | - Susan A Skull
- Department of Paediatrics, University of Melbourne and Royal Children's Hospital, Melbourne, Australia
- Murdoch Children's Research Institute, Melbourne, Australia
| | - Heidi C Smith-Vaughan
- Ear Health and Education Unit, Menzies School of Health Research, Darwin, Australia
- Institute of Advanced Studies, Charles Darwin University, Australia
| | - Elizabeth Stubbs
- Ear Health and Education Unit, Menzies School of Health Research, Darwin, Australia
| | - Amanda J Leach
- Ear Health and Education Unit, Menzies School of Health Research, Darwin, Australia
- Institute of Advanced Studies, Charles Darwin University, Australia
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Finkelstein JA, Stille CJ, Rifas-Shiman SL, Goldmann D. Watchful waiting for acute otitis media: are parents and physicians ready? Pediatrics 2005; 115:1466-73. [PMID: 15930205 DOI: 10.1542/peds.2004-1473] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE To assess the current use of initial observation ("watchful waiting") of acute otitis media among community physicians and the acceptability of this option to parents of young children. SETTING Sixteen nonoverlapping Massachusetts communities enrolled in a community intervention study on appropriate antibiotic use. DESIGN Pediatricians, family physicians, and a random sample of parents of children <6 years old were surveyed. Parents predicted what their satisfaction would be with initial observation of an ear infection without antibiotics if suggested by their physician and concerns they would have regarding this watchful-waiting approach. Physicians reported the frequency with which they use this approach in children > or =2 years and those <2 years old. Separate multivariable models identified factors independently associated with parental satisfaction and with frequency of self-reported use by physicians. All models accounted for clustering of responses within communities. RESULTS Two thousand fifty-four (40%) parents and 160 (58%) physicians responded. Of the parents, 34% would be somewhat or extremely satisfied if initial observation was recommended, another 26% would be neutral, and the remaining 40% would be somewhat or extremely dissatisfied. The multivariable model showed lower parental education (odds ratio [OR]: 0.50; 95% confidence interval [CI]: 0.35, 0.71, for high school education or less compared with college graduation) and Medicaid enrollment (OR: 0.77; CI: 0.57, 1.0) was associated with lower predicted satisfaction. Higher antibiotic-related knowledge (OR: 1.2; CI: 1.1, 1.3, per question correct), belief that antibiotic resistance is a serious problem (OR: 2.3; CI: 1.8, 2.8), and reporting feeling included in medical decisions (OR: 1.4; CI: 1.1, 1.7) all were independently associated with higher predicted satisfaction. Thirty-eight percent of physicians treating children > or =2 years old never or almost never reported using initial observation, 39% reported use occasionally, 17% sometimes, and 6% most of the time. In a multivariable model, only more years in practice (OR: 0.96; CI: 0.93, 0.99) was associated with a decreased likelihood of occasional or more-frequent use of watchful waiting (compared with those who never use initial observation). However, a secondary model that combined occasional users with nonusers (compared with those reporting use sometimes or more often) identified several correlates of use of observation: years in practice (OR: 0.95; CI: 0.91, 0.99), family medicine specialization (OR: 4.5; CI: 1.9, 11), belief that antibiotic resistance is a significant problem (OR: 4.3; CI: 1.3, 14.5), and practice in a community receiving a judicious antibiotic-use intervention (OR: 3.5; CI: 1.3, 9.1). CONCLUSIONS A majority of physicians reported at least occasionally using initial observation, but few use it frequently. Many parents have concerns regarding this option, but acceptability is increased among those with more education and those who feel included in medical decisions. Substantial change in both parental and provider views would be needed to make initial observation a widely used alternative for acute otitis media.
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Affiliation(s)
- Jonathan A Finkelstein
- Department of Ambulatory Care and Prevention, Harvard Medical School and Harvard Pilgrim Health Care, Boston, Massachusetts, USA.
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McCormick DP, Chonmaitree T, Pittman C, Saeed K, Friedman NR, Uchida T, Baldwin CD. Nonsevere acute otitis media: a clinical trial comparing outcomes of watchful waiting versus immediate antibiotic treatment. Pediatrics 2005; 115:1455-65. [PMID: 15930204 DOI: 10.1542/peds.2004-1665] [Citation(s) in RCA: 126] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE The widespread use of antibiotics for treatment of acute otitis media (AOM) has resulted in the emergence of multidrug-resistant pathogens that are difficult to treat. However, it has been shown that most children with nonsevere AOM recover without ABX. The objective of this study was to evaluate the safety, efficacy, acceptability, and costs of a non-ABX intervention for children with nonsevere AOM. METHODOLOGY Children 6 months to 12 years old with AOM were screened by using a novel AOM-severity screening index. Parents of children with nonsevere AOM received an educational intervention, and their children were randomized to receive either immediate antibiotics (ABX; amoxicillin plus symptom medication) or watchful waiting (WW; symptom medication only). The investigators, but not the parents, were blinded to enrollment status. Primary outcomes included parent satisfaction with AOM care, resolution of symptoms, AOM failure/recurrence, and nasopharyngeal carriage of Streptococcus pneumoniae strains resistant to ABX. Secondary outcomes included medication-related adverse events, serious adverse events, unanticipated AOM-related office and emergency department visits and telephone calls, the child's absence from day care or school resulting from AOM, the parent's absence from school or work because of their child's AOM, and costs of treatment. Subjects were defined as failing (days 0-12) or recurring (days 13-30) if they experienced a higher AOM-severity score on reexamination. RESULTS A total of 223 subjects were recruited: 73% were nonwhite, 57% were <2 years old, 47% attended day care, 82% had experienced prior AOM, and 83% had not been fully immunized with heptavalent pneumococcal vaccine. One hundred twelve were randomized to ABX, and 111 were randomized to WW. Ninety-four percent of the subjects were followed to the 30-day end point. Parent satisfaction with AOM care was not different between the 2 treatment groups at either day 12 or 30. Compared with WW, symptom scores on days 1 to 10 resolved faster in subjects treated with immediate ABX. At day 12, among the immediate-ABX group, 69% of tympanic membranes and 25% of tympanograms were normal, compared with 51% of normal tympanic membranes and 10% of normal tympanograms in the WW group. Parents of children in the ABX group gave their children fewer doses of pain medication than did parents of children in the WW group. Subjects in the ABX group experienced 16% fewer failures than subjects in the WW group. Of the children in the WW group, 66% completed the study without needing ABX. Immediate ABX resulted in eradication of S pneumoniae carriage in the majority of children, but S pneumoniae strains cultured from children in the ABX group at day 12 were more likely to be multidrug-resistant than strains from children in the WW group. More ABX-related adverse events were noted in the ABX group, compared with the WW group. No serious AOM-related adverse events were observed in either group. Office and emergency department visits, phone calls, and days of work/school missed were not different between groups. Prescriptions for ABX were reduced by 73% in the WW group compared with the ABX group. Costs of ABX averaged $47.41 per subject in the ABX group and $11.43 in the WW group. CONCLUSIONS Sixty-six percent of subjects in the WW group completed the study without ABX. Parent satisfaction was the same between groups regardless of treatment. Compared with WW, immediate ABX treatment was associated with decreased numbers of treatment failures and improved symptom control but increased ABX-related adverse events and a higher percent carriage of multidrug-resistant S pneumoniae strains in the nasopharynx at the day-12 visit. Key factors in implementing a WW strategy were (a) a method to classify AOM severity; (b) parent education; (c) management of AOM symptoms; (d) access to follow-up care; and (e) use of an effective ABX regimen, when needed. When these caveats are observed, WW may be an acceptable alternative to immediate ABX for some children with nonsevere AOM.
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Affiliation(s)
- David P McCormick
- Division of General Academic Pediatrics, University of Texas Medical Branch, 301 University Blvd, Galveston, TX 77555-1119, USA.
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23
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Affiliation(s)
- Ellen R Wald
- Department of Pediatrics , Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA.
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Gené A, García-García JJ, Domingo A, Wienberg P, Palacín E. [Etiology of acute otitis media in a children's hospital and antibiotic sensitivity of the bacteria involved]. Enferm Infecc Microbiol Clin 2004; 22:377-80. [PMID: 15355766 DOI: 10.1016/s0213-005x(04)73119-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND This study provides an update on the bacterial etiology of acute otitis media in our area, the antibiotic sensitivity of the bacteria implicated in this condition, and the prevalence of circulating Streptococcus pneumoniae serotypes. METHODS Results from a total of 240 samples obtained by diagnostic tympanocentesis and 167 samples of spontaneous otorrhea processed between 1999 and 2001 were reviewed retrospectively. RESULTS The mean age of the patients studied was 17 months and the median was 13 months (range: 1 month-7 years). Among the tympanocentesis samples, S. pneumoniae was recovered from 67 (27.9%), Haemophilus influenzae from 60 (25%), both S. pneumoniae and H. influenzae from 3 (1.3%) and Moraxella catarrhalis from 6 (2.5%). Among the spontaneous otorrhea samples, S. pneumoniae was recovered from 15 (9%), H. influenzae from 25 (15%) and both S. pneumoniae and H. influenzae from 1 (0.6%). The remaining samples showed either no growth or recovery of colonizing flora. The main findings were as follows: 49.3% of S. pneumoniae strains showed intermediate sensitivity to penicillin (MIC: 0.12-1 microg/ml), 16.9% were resistant to penicillin (MIC: > or = 2 microg/ml) and 54% were resistant to macrolides; 24,7% of H. influenzae and 100% of M. catarrhalis strains were beta-lactamase producers; and 64 (84.2%) of 76 S. pneumoniae serotyped strains belonged to pneumococcal heptavalent vaccine serotypes. CONCLUSIONS S. pneumoniae and H. influenzae were the main causal agents of acute otitis media. Antibiotic sensitivity of the bacteria involved showed the same characteristics as the general pattern in our country. Spontaneous otorrhea culture was not a useful method for establishing the etiology of acute otitis media. Knowledge of the distribution of S. pneumoniae serotypes is essential for assessing epidemiological changes resulting from the use of heptavalent pneumococcal vaccine.
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Affiliation(s)
- Amadeu Gené
- Servicios de Microbiología y Pediatría, Unidad de Infectología Pediátrica y Otorrinolaringología, Hospital Sant Joan de Déu, Esplugues de Llobregat, Barcelona, Spain.
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Mangione-Smith R, Elliott MN, Stivers T, McDonald L, Heritage J, McGlynn EA. Racial/ethnic variation in parent expectations for antibiotics: implications for public health campaigns. Pediatrics 2004; 113:e385-94. [PMID: 15121979 DOI: 10.1542/peds.113.5.e385] [Citation(s) in RCA: 103] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
CONTEXT Widespread overuse and inappropriate use of antibiotics are a major public health concern. Little is known about racial/ethnic differences in parents seeking antibiotics for their children's upper respiratory illnesses. OBJECTIVE To examine racial/ethnic differences in parent expectations about the need for antibiotics and physician perceptions of those expectations. DESIGN We conducted a nested, cross-sectional survey of parents who were coming to see their child's pediatrician because of cold symptoms between October 2000 and June 2001. Parents completed a previsit survey that collected information on demographics, their child's illness, and a 15-item previsit expectations inventory that included an item asking how necessary it was for the physician to prescribe antibiotics. Physicians completed a postvisit survey that collected information on diagnosis, treatment, and whether the physician perceived the parent expected an antibiotic. The encounter was the unit of analysis. Multivariate logistic regression analyses were performed to evaluate predictors of dichotomized parental expectations for antibiotics, dichotomized physician perceptions of those expectations, diagnostic patterns, and antibiotic-prescribing patterns. SETTING Twenty-seven community pediatric practices in the Los Angeles, Calif, metropolitan area. PARTICIPANTS A volunteer sample of 38 pediatricians (participation rate: 64%) and a consecutive sample of 543 parents (participation rate: 83%; approximately 15 participating for each enrolled pediatrician) seeking care for their children's respiratory illnesses. Pediatricians were eligible to participate if they worked in a community-based managed care practice in the Los Angeles area. Parents were eligible to participate if they could speak and read English and presented to participating pediatricians with a child 6 months to 10 years old who had cold symptoms but had not received antibiotics within 2 weeks. MAIN OUTCOME MEASURES Parental beliefs about the necessity of antibiotics for their child's illness, physician perceptions of parental expectations for antibiotics, bacterial diagnosis rates, and antibiotic-prescribing rates. RESULTS Forty-three percent of parents believed that antibiotics were definitely necessary, and 27% believed that they were probably necessary for their child's illness. Latino and Asian parents were both 17% more likely to report that antibiotics were either definitely or probably necessary than non-Hispanic white parents. Physicians correctly perceived that Asian parents expected antibiotics more often than non-Hispanic white parents but underestimated the greater expectations of Latino parents for antibiotics. Physicians also correctly perceived that parents of children with ear pain or who were very worried about their child's condition were significantly more likely to expect antibiotics. Physicians were 7% more likely to make a bacterial diagnosis and 21% more likely to prescribe antibiotics when they perceived that antibiotics were expected. CONCLUSIONS Parent expectations for antibiotics remain high in Los Angeles County. With time, traditional public health messages related to antibiotic use may decrease expectations among non-Hispanic white parents. However, both public health campaigns and physician educational efforts may need to be designed differently to reach other racial/ethnic groups effectively. Despite public health campaigns to reduce antibiotic overprescribing in the pediatric outpatient setting, physicians continue to respond to parental pressure to prescribe them. To effectively intervene to decrease rates of inappropriate antibiotic prescribing further, physicians need culturally appropriate tools to better communicate and negotiate with parents when feeling pressured to prescribe antibiotics.
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Affiliation(s)
- Rita Mangione-Smith
- Department of Pediatrics, University of California, Los Angeles, California 90095-1752, USA.
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Abstract
This evidence-based clinical practice guideline provides recommendations to primary care clinicians for the management of children from 2 months through 12 years of age with uncomplicated acute otitis media (AOM). The American Academy of Pediatrics and American Academy of Family Physicians convened a committee composed of primary care physicians and experts in the fields of otolaryngology, epidemiology, and infectious disease. The subcommittee partnered with the Agency for Healthcare Research and Quality and the Southern California Evidence-Based Practice Center to develop a comprehensive review of the evidence-based literature related to AOM. The resulting evidence report and other sources of data were used to formulate the practice guideline recommendations. The focus of this practice guideline is the appropriate diagnosis and initial treatment of a child presenting with AOM. The guideline provides a specific definition of AOM. It addresses pain management, initial observation versus antibacterial treatment, appropriate choices of antibacterials, and preventive measures. Decisions were made based on a systematic grading of the quality of evidence and strength of recommendations, as well as expert consensus when definitive data were not available. The practice guideline underwent comprehensive peer review before formal approval by the partnering organizations. This clinical practice guideline is not intended as a sole source of guidance in the management of children with AOM. Rather, it is intended to assist primary care clinicians by providing a framework for clinical decision-making. It is not intended to replace clinical judgment or establish a protocol for all children with this condition. These recommendations may not provide the only appropriate approach to the management of this problem.
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Abstract
We surveyed pediatricians (PEDs), family physicians (FPs), otolaryngologists (ENTs), and emergency physicians (ERs) from across Michigan (100 each), as well as 30 nationally recognized experts about their clinical approach to acute otitis media (AOM). The overall response rate was 52%. There was substantial variation within each group with respect to diagnostic criteria and clinical decision-making, but no significant differences among groups. The 63% of respondents who considered symptoms among their diagnostic criteria for AOM were 3.8-fold more likely to defer therapy for an asymptomatic toddler with a bulging, red, immobile tympanic membrane (TM) (95% Confidence Interval (CI) 1.53, 9.74), but 24% of respondents stated that they would prescribe oral antibiotics for a symptomatic child with a red TM, even in the absence of a middle ear effusion. These data suggest that diagnostic criteria are a major factor determining whether clinicians prescribe antibiotics to a particular patient.
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Affiliation(s)
- Richard Linsk
- Division of General Pediatrics University of Michigan, Ann Arbor, MI 48152, USA
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