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Lamsal R, Yeh EA, Pullenayegum E, Ungar WJ. A Systematic Review of Methods Used by Pediatric Cost-Utility Analyses to Include Family Spillover Effects. PHARMACOECONOMICS 2024; 42:199-217. [PMID: 37945777 PMCID: PMC10810985 DOI: 10.1007/s40273-023-01331-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/25/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND A child's health condition affects family members' health and well-being. However, pediatric cost-utility analysis (CUA) commonly ignores these family spillover effects leading to an incomplete understanding of the cost and benefits of a child's health intervention. Methodological challenges exist in assessing, valuing, and incorporating family spillover effects. OBJECTIVE This study systematically reviews and compare methods used to include family spillover effects in pediatric CUAs. METHODS A literature search was conducted in MEDLINE, Embase, EconLit, Cochrane collection, CINAHL, INAHTA, and the Pediatric Economic Database Evaluation (PEDE) database from inception to 2020 to identify pediatric CUAs that included family spillover effects. The search was updated to 2021 using PEDE. The data describing in which family members spillover effects were measured, and how family spillover effects were measured, incorporated, and reported, were extracted. Common approaches were grouped conceptually. Further, this review identified theories or theoretical frameworks used to justify approaches for integrating family spillover effects into CUA. RESULTS Of 878 pediatric CUAs identified, 35 included family spillover effects. Most pediatric CUAs considered family spillover effects on one family member. Pediatric CUAs reported eight different approaches to measure the family spillover effects. The most common method was measuring the quality-adjusted life years (QALY) loss of the caregiver(s) or parent(s) due to a child's illness or disability using an isolated approach whereby family spillover effects were quantified in individual family members separately from other health effects. Studies used four approaches to integrate family spillover effects into CUA. The most common method was to sum children's and parents/caregivers' QALYs. Only two studies used a theoretical framework for incorporation of family spillover effects. CONCLUSIONS Few pediatric CUAs included family spillover effects and the observed variation indicated no consensus among researchers on how family spillover effects should be measured and incorporated. This heterogeneity is mirrored by a lack of practical guidelines by Health Technology Assessment (HTA) agencies or a theoretical foundation for including family spillover effects in pediatric CUA. The results from this review may encourage researchers to develop a theoretical framework and HTA agencies to develop guidelines for including family spillover effects. Such guidance may lead to more rigorous and standardized methods for including family spillover effects and better-quality evidence to inform decision-makers on the cost-effectiveness of pediatric health interventions.
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Affiliation(s)
- Ramesh Lamsal
- Child Health Evaluative Sciences, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, 686 Bay Street, 11th Floor, Toronto, ON, M5G 0A4, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada
| | - E Ann Yeh
- Division of Neurology, Department of Pediatrics, University of Toronto, Toronto, ON, Canada
- Neurosciences and Mental Health, SickKids Research Institute, Toronto, ON, Canada
| | - Eleanor Pullenayegum
- Child Health Evaluative Sciences, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, 686 Bay Street, 11th Floor, Toronto, ON, M5G 0A4, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - Wendy J Ungar
- Child Health Evaluative Sciences, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, 686 Bay Street, 11th Floor, Toronto, ON, M5G 0A4, Canada.
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada.
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Pichichero M, Malley R, Kaur R, Zagursky R, Anderson P. Acute otitis media pneumococcal disease burden and nasopharyngeal colonization in children due to serotypes included and not included in current and new pneumococcal conjugate vaccines. Expert Rev Vaccines 2023; 22:118-138. [PMID: 36565291 DOI: 10.1080/14760584.2023.2162506] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Despite the introduction of effective pneumococcal conjugate vaccines (PCV), Streptococcus pneumoniae remains a major cause of acute otitis media (AOM) worldwide. New, higher valency vaccines that offer broader serotype coverage have been recently developed and others are in development. However, given the capsular serotypes expressed by pneumococci causing AOM, it is unclear to what extent differing or higher valency PCVs will provide additional protection. AREAS COVERED We conducted a systematic literature search of the MEDLINE database to identify articles published from January 2016 to September 2021 in 4 low and middle income and 10 high-income countries. We searched PubMed with terms: (Streptococcus pneumoniae) OR pneumococcal AND serotype AND (conjugate vaccine). We evaluated serotype distribution and the actual or projected coverage of pneumococcal serotypes by PCV10 (GlaxoSmithKline), PCV13 (Pfizer), PCV10SII (Serum Institute of India) PCV15 (Merck) and PCV20 (Pfizer). EXPERT OPINION Our review highlights the important epidemiological differences in serotype distribution and coverage by existing and higher valency vaccines to protect against AOM in children. These data provide support for further evaluation of serotype-independent vaccines for optimal control of pneumococcal AOM disease worldwide.
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Affiliation(s)
- Michael Pichichero
- Rochester General Hospital Research Institute, Center for Infectious Diseases, Rochester, NY, USA
| | - Richard Malley
- Boston Children's Hospital, Division of Infectious Diseases, Boston Massachusetts, USA
| | - Ravinder Kaur
- Rochester General Hospital Research Institute, Center for Infectious Diseases, Rochester, NY, USA
| | - Robert Zagursky
- Rochester General Hospital Research Institute, Center for Infectious Diseases, Rochester, NY, USA
| | - Porter Anderson
- Boston Children's Hospital, Division of Infectious Diseases, Boston Massachusetts, USA
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Carrico J, La EM, Talbird SE, Chen YT, Nyaku MK, Carias C, Mellott CE, Marshall GS, Roberts CS. Value of the Immunization Program for Children in the 2017 US Birth Cohort. Pediatrics 2022; 150:188497. [PMID: 35821603 DOI: 10.1542/peds.2021-056007] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/01/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND AND OBJECTIVES We evaluated the economic impact of routine childhood immunization in the United States, reflecting updated vaccine recommendations and recent data on epidemiology and coverage rates. METHODS An economic model followed the 2017 US birth cohort from birth through death; impact was modeled via a decision tree for each of the vaccines recommended for children by the Advisory Committee on Immunization Practices as of 2017 (with annual influenza vaccine considered in scenario analysis). Using information on historic prevaccine and vaccine-era incidence and disease costs, we calculated disease cases, deaths, disease-related healthcare costs, and productivity losses without and with vaccination, as well as vaccination program costs. We estimated cases and deaths averted because of vaccination, life-years and quality-adjusted life-years gained because of vaccination, incremental costs (2019 US dollars), and the overall benefit-cost ratio (BCR) of routine childhood immunization from the societal and healthcare payer perspectives. RESULTS Over the cohort's lifetime, routine childhood immunization prevented over 17 million cases of disease and 31 000 deaths; 853 000 life years and 892 000 quality-adjusted life-years were gained. Estimated vaccination costs ($8.5 billion) were fully offset by the $63.6 billion disease-related averted costs. Routine childhood immunization was associated with $55.1 billion (BCR of 7.5) and $13.7 billion (BCR of 2.8) in averted costs from a societal and healthcare payer perspective, respectively. CONCLUSIONS In addition to preventing unnecessary morbidity and mortality, routine childhood immunization is cost-saving. Continued maintenance of high vaccination coverage is necessary to ensure sustained clinical and economic benefits of the vaccination program.
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Affiliation(s)
- Justin Carrico
- RTI Health Solutions, Research Triangle Park, North Carolina
| | - Elizabeth M La
- RTI Health Solutions, Research Triangle Park, North Carolina
| | | | | | | | | | | | - Gary S Marshall
- Norton Children's and University of Louisville School of Medicine, Louisville, Kentucky
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Marra LP, Sartori AL, Martinez-Silveira MS, Toscano CM, Andrade AL. Effectiveness of Pneumococcal Vaccines on Otitis Media in Children: A Systematic Review. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2022; 25:1042-1056. [PMID: 35667776 DOI: 10.1016/j.jval.2021.12.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 11/24/2021] [Accepted: 12/06/2021] [Indexed: 06/15/2023]
Abstract
OBJECTIVES We aimed to determine the effectiveness of pneumococcal vaccines on otitis media (OM) and acute otitis media (AOM) in children. METHODS We conducted a systematic search in databases PubMed (MEDLINE), Embase, Lilacs, and Web of Science. We included observational studies that evaluated any pneumococcal vaccine - including 7, 10, and 13-valent pneumococcal conjugate vaccines (PCV7, PCV10, and PCV13) and 23-valent polysaccharide vaccines (PPSV23) as the intervention, in children aged less than five years. RESULTS Out of the 2112 screened studies, 48 observational studies complied with the eligibility criteria and therefore were included in this review. Of the included studies, 30 (63%) were before-after, eleven (23%) cohort, six (13%) time series, and one (2%) case-control study designs. Vaccine effectiveness (VE) in preventing OM or AOM varied by vaccine type. In children under 24 months VE ranged from 8% and 42.7% (PCV7), 5.6% to 84% (PCV10) and 2.2% to 68% (PCV13). In children aged less than 60 months, VE ranged between 13.2% and 39% for PCV7, 11% to 39% for PCV10 (only children under 48 months), and 39% to 41% (PCV13). CONCLUSIONS Our results demonstrate significant effect of pneumococcal vaccination in decreasing OM or AOM in children under five years old in several countries supporting the public health value of introducing PCVs in national immunization programs.
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Affiliation(s)
- Lays P Marra
- Department of Community Health, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Brazil.
| | - Ana L Sartori
- Institute of Health Sciences, Federal University of Mato Grosso, Sinop, Brazil
| | | | - Cristiana M Toscano
- Department of Community Health, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Brazil
| | - Ana L Andrade
- Department of Community Health, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Brazil
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Thai A, Aaron KA, Kaufman AC, Santa Maria PL. Long-Term Health Utilization and Outcomes in Chronic Suppurative Otitis Media. Otolaryngol Head Neck Surg 2021; 167:341-349. [PMID: 34637356 DOI: 10.1177/01945998211050626] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVE To report health utilization patterns and outcomes of medical and surgical management in patients with chronic suppurative otitis media (CSOM). STUDY DESIGN Retrospective cohort. SETTING Academic otology clinic. METHODS This study included 175 patients with CSOM with a first clinic visit at our institution between March 2011 and November 2016. All patients displayed a diagnosis of CSOM by International Classification of Diseases code, had at least 1 episode of active CSOM (defined as perforation with otorrhea), and had a documented history of chronic ear infections. The mean age was 49.5 ± 1.5 years, 53% were female, and mean follow-up time was 3.5 ± 0.3 years. RESULTS Patients had an average of 9.5 ± 0.5 otology visits, 4.7 ± 0.4 prescriptions, and 1.7 ± 0.1 surgeries, with estimated per patient cost ranging from $3927 to $20,776. Under medical management, 69% of patients displayed recurrence of disease, with a median time to recurrence of 4 months. For tympanoplasty and tympanomastoidectomy, median time to recurrence was similar at 5 and 7 years, respectively (P = .73). At the most recent visit, the prevalence of all patients with CSOM displaying moderate or worse sensorineural hearing loss (SNHL) was 41%. CONCLUSIONS CSOM represents a major public health issue with high health care utilization and associated costs. Surgery is superior to medical therapy for achieving short- to medium-term inactive disease. Patients with CSOM display a high SNHL burden.
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Affiliation(s)
- Anthony Thai
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Ksenia A Aaron
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Adam C Kaufman
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Peter L Santa Maria
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Stanford, California, USA
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Zheng Q, Zheng T, Zhang A, Yan B, Li B, Zhang Z, Zhang Y. Hearing Loss in Id1 -/-; Id3 +/- and Id1 +/-; Id3 -/- Mice Is Associated With a High Incidence of Middle Ear Infection (Otitis Media). Front Genet 2021; 12:508750. [PMID: 34434211 PMCID: PMC8381378 DOI: 10.3389/fgene.2021.508750] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 07/06/2021] [Indexed: 11/13/2022] Open
Abstract
Inhibitors of differentiation/DNA binding (Id) proteins are crucial for inner ear development, but whether Id mutations affect middle ear function remains unknown. In this study, we obtained Id1-/-; Id3+/- mice and Id1+/-; Id3-/- mice and carefully examined their middle ear morphology and auditory function. Our study revealed a high incidence (>50%) of middle ear infection in the compound mutant mice. These mutant mice demonstrated hearing impairment starting around 30 days of age, as the mutant mice presented elevated auditory brainstem response (ABR) thresholds compared to those of the littermate controls. The distortion product of otoacoustic emission (DPOAE) was also used to evaluate the conductive function of the middle ear, and we found much lower DPOAE amplitudes in the mutant mice, suggesting sound transduction in the mutant middle ear is compromised. This is the first study of the middle ears of Id compound mutant mice, and high incidence of middle ear infection determined by otoscopy and histological analysis of middle ear suggests that Id1/Id3 compound mutant mice are a novel model for human otitis media (OM).
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Affiliation(s)
- Qingyin Zheng
- Department of Otolaryngology – Head and Neck Surgery, Second Affiliated Hospital of Xi’an Jiaotong University School of Medicine, Xi’an, China
- School of Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Tihua Zheng
- Department of Otolaryngology – Head and Neck Surgery, Second Affiliated Hospital of Xi’an Jiaotong University School of Medicine, Xi’an, China
- College of Special Education, Hearing and Speech Rehabilitation Institute, Binzhou Medical University, Yantai, China
| | - Aizhen Zhang
- School of Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Bin Yan
- College of Special Education, Hearing and Speech Rehabilitation Institute, Binzhou Medical University, Yantai, China
| | - Bo Li
- College of Special Education, Hearing and Speech Rehabilitation Institute, Binzhou Medical University, Yantai, China
| | - Zhaoqiang Zhang
- School of Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Yan Zhang
- Department of Otolaryngology – Head and Neck Surgery, Second Affiliated Hospital of Xi’an Jiaotong University School of Medicine, Xi’an, China
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de Sévaux JL, Venekamp RP, Lutje V, Hak E, Schilder AG, Sanders EA, Damoiseaux RA. Pneumococcal conjugate vaccines for preventing acute otitis media in children. Cochrane Database Syst Rev 2020; 11:CD001480. [PMID: 33231293 PMCID: PMC8096893 DOI: 10.1002/14651858.cd001480.pub6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BACKGROUND Prior to introducing pneumococcal conjugate vaccines (PCVs), Streptococcus pneumoniae was most commonly isolated from the middle ear fluid of children with acute otitis media (AOM). Reducing nasopharyngeal colonisation of this bacterium by PCVs may lead to a decline in AOM. The effects of PCVs deserve ongoing monitoring since studies from the post-PCV era report a shift in causative otopathogens towards non-vaccine serotypes and other bacteria. This updated Cochrane Review was first published in 2002 and updated in 2004, 2009, 2014, and 2019. OBJECTIVES To assess the effect of PCVs in preventing AOM in children up to 12 years of age. SEARCH METHODS We searched CENTRAL, MEDLINE, Embase, CINAHL, LILACS, Web of Science, and two trials registers, ClinicalTrials.gov and WHO ICTRP, to 11 June 2020. SELECTION CRITERIA Randomised controlled trials of PCV versus placebo or control vaccine. DATA COLLECTION AND ANALYSIS We used the standard methodological procedures expected by Cochrane. The primary outcomes were frequency of all-cause AOM and adverse effects. Secondary outcomes included frequency of pneumococcal AOM and frequency of recurrent AOM (defined as three or more AOM episodes in six months or four or more in one year). We used GRADE to assess the certainty of the evidence. MAIN RESULTS We included 15 publications of 11 trials (60,733 children, range 74 to 37,868 per trial) of 7- to 11-valent PCVs versus control vaccines (meningococcus type C vaccine in three trials, and hepatitis A or B vaccine in eight trials). We included one additional publication of a previously included trial for this 2020 update. We did not find any relevant trials with the newer 13-valent PCV. Most studies were funded by pharmaceutical companies. Overall, risk of bias was low. In seven trials (59,415 children), PCVs were administered in early infancy, whilst four trials (1318 children) included children aged one year and over who were either healthy or had a history of respiratory illness. There was considerable clinical heterogeneity across studies, therefore we reported results from individual studies. PCV administered in early infancy PCV7 The licenced 7-valent PCV with CRM197 as carrier protein (CRM197-PCV7) was associated with a 6% (95% confidence interval (CI) -4% to 16%; 1 trial; 1662 children) and 6% (95% CI 4% to 9%; 1 trial; 37,868 children) relative risk reduction (RRR) in low-risk infants (moderate-certainty evidence), but was not associated with a reduction in all-cause AOM in high-risk infants (RRR -5%, 95% CI -25% to 12%). PCV7 with the outer membrane protein complex of Neisseria meningitidis serogroup B as carrier protein (OMPC-PCV7) was not associated with a reduction in all-cause AOM (RRR -1%, 95% CI -12% to 10%; 1 trial; 1666 children; low-certainty evidence). CRM197-PCV7 and OMPC-PCV7 were associated with 20% (95% CI 7% to 31%) and 25% (95% CI 11% to 37%) RRR in pneumococcal AOM, respectively (2 trials; 3328 children; high-certainty evidence), and CRM197-PCV7 with 9% (95% CI -12% to 27%) and 10% (95% CI 7% to 13%) RRR in recurrent AOM (2 trials; 39,530 children; moderate-certainty evidence). PHiD-CV10/11 The effect of a licenced 10-valent PCV conjugated to protein D, a surface lipoprotein of Haemophilus influenzae, (PHiD-CV10) on all-cause AOM in healthy infants varied from 6% (95% CI -6% to 17%; 1 trial; 5095 children) to 15% (95% CI -1% to 28%; 1 trial; 7359 children) RRR (low-certainty evidence). PHiD-CV11 was associated with 34% (95% CI 21% to 44%) RRR in all-cause AOM (1 trial; 4968 children; moderate-certainty evidence). PHiD-CV10 and PHiD-CV11 were associated with 53% (95% CI 16% to 74%) and 52% (95% CI 37% to 63%) RRR in pneumococcal AOM (2 trials; 12,327 children; high-certainty evidence), and PHiD-CV11 with 56% (95% CI -2% to 80%) RRR in recurrent AOM (1 trial; 4968 children; low-certainty evidence). PCV administered at a later age PCV7 We found no evidence of a beneficial effect on all-cause AOM of administering CRM197-PCV7 in children aged 1 to 7 years with a history of respiratory illness or frequent AOM (2 trials; 457 children; moderate-certainty evidence) and CRM197-PCV7 combined with a trivalent influenza vaccine in children aged 18 to 72 months with a history of respiratory tract infections (1 trial; 597 children; moderate-certainty evidence). CRM197-PCV9 In 1 trial including 264 healthy daycare attendees aged 1 to 3 years, CRM197-PCV9 was associated with 17% (95% CI -2% to 33%) RRR in parent-reported all-cause otitis media (very low-certainty evidence). Adverse events Nine trials reported on adverse effects (77,389 children; high-certainty evidence). Mild local reactions and fever were common in both groups, and occurred more frequently in PCV than in control vaccine groups: redness (< 2.5 cm): 5% to 20% versus 0% to 16%; swelling (< 2.5 cm): 5% to 12% versus 0% to 8%; and fever (< 39 °C): 15% to 44% versus 8% to 25%. More severe redness (> 2.5 cm), swelling (> 2.5 cm), and fever (> 39 °C) occurred less frequently (0% to 0.9%, 0.1% to 1.3%, and 0.4% to 2.5%, respectively) in children receiving PCV, and did not differ significantly between PCV and control vaccine groups. Pain or tenderness, or both, was reported more frequently in PCV than in control vaccine groups: 3% to 38% versus 0% to 8%. Serious adverse events judged to be causally related to vaccination were rare and did not differ significantly between groups, and no fatal serious adverse event judged causally related to vaccination was reported. AUTHORS' CONCLUSIONS Administration of the licenced CRM197-PCV7 and PHiD-CV10 during early infancy is associated with large relative risk reductions in pneumococcal AOM. However, the effects of these vaccines on all-cause AOM is far more uncertain based on low- to moderate-certainty evidence. We found no evidence of a beneficial effect on all-cause AOM of administering PCVs in high-risk infants, after early infancy, and in older children with a history of respiratory illness. Compared to control vaccines, PCVs were associated with an increase in mild local reactions (redness, swelling), fever, and pain and/or tenderness. There was no evidence of a difference in more severe local reactions, fever, or serious adverse events judged to be causally related to vaccination.
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Affiliation(s)
- Joline Lh de Sévaux
- Department of Emergency Medicine, Ziekenhuis St Jansdal, Harderwijk, Netherlands
- Department of Internal Medicine, Ziekenhuis Gelderse Vallei, Ede, Netherlands
| | - Roderick P Venekamp
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Vittoria Lutje
- Cochrane Infectious Diseases Group, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Eelko Hak
- Groningen Research Institute of Pharmacy, University Groningen, 9713 AV Groningen, Netherlands
| | - Anne Gm Schilder
- evidENT, Ear Institute, University College London, London, UK
- Julius Center for Health Sciences and Primary Care & Department of Otorhinolaryngology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
- National Institute of Health Research, University College London Hospitals Biomedical Research Centre, London, UK
| | - Elisabeth Am Sanders
- Department of Pediatric Immunology and Infectious Diseases, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
- Center for Infectious Diseases, The National Institute for Public Health and the Environment, Bilthoven, Netherlands
| | - Roger Amj Damoiseaux
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
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Immunization with a Biofilm-Disrupting Nontypeable Haemophilus influenzae Vaccine Antigen Did Not Alter the Gut Microbiome in Chinchillas, Unlike Oral Delivery of a Broad-Spectrum Antibiotic Commonly Used for Otitis Media. mSphere 2020; 5:5/2/e00296-20. [PMID: 32295873 PMCID: PMC7160684 DOI: 10.1128/msphere.00296-20] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The prevalence of chronic and recurrent diseases, combined with the overuse/abuse of antibiotics that has led to the sobering emergence of bacteria resistant to multiple antibiotics, has mandated that we develop novel approaches to better manage these diseases or, ideally, prevent them. Biofilms play a key role in the pathogenesis of chronic and recurrent bacterial diseases but are difficult, if not impossible, to eradicate with antibiotics. We developed a vaccine antigen designed to mediate biofilm disruption; however, it is also important that delivery of this vaccine does not induce collateral damage to the microbiome. The studies described here validated a vaccine approach that targets biofilms without the consequences of an altered gut microbiome. While delivery of the antibiotic most commonly given to children with ear infections did indeed alter the gut microbiome, as expected, immunization via traditional injection or by noninvasive delivery to the skin did not result in changes to the chinchilla gut microbiome. The use of broad-spectrum antibiotics to treat diseases, such as the highly prevalent pediatric disease otitis media (OM), contributes significantly to the worldwide emergence of multiple-antibiotic-resistant microbes, and gut dysbiosis with diarrhea is a common adverse sequela. Moreover, for many diseases, like OM, biofilms contribute significantly to chronicity and recurrence, yet biofilm-resident bacteria are characteristically highly resistant to antibiotics. The most cost-effective way to both prevent and resolve diseases like OM, as well as begin to address the problem of growing antibiotic resistance, would be via the development of novel approaches to eradicate bacterial biofilms. Toward this goal, we designed a vaccine antigen that induces the formation of antibodies that prevent biofilm formation and, thereby, experimental OM in the middle ears of chinchillas by the predominant Gram-negative pathogen responsible for this disease, nontypeable Haemophilus influenzae. These antibodies also significantly disrupt preexisting biofilms formed by diverse pathogens. Whereas preclinical data strongly support the continued development of this vaccine antigen, which targets an essential structural element of bacterial biofilms, a concern has been whether active immunization would also lead to unintended collateral damage in the form of an altered gut microbiome. To address this concern, we assessed changes in the microbiome of the chinchilla gut over time after the delivery of either amoxicillin-clavulanate, the standard of care for OM, or after immunization with our biofilm-targeted vaccine antigen either via a traditional subcutaneous route or via a novel noninvasive transcutaneous route. We show that differences in the abundance of specific taxa were found only in the stools of antibiotic-treated animals. IMPORTANCE The prevalence of chronic and recurrent diseases, combined with the overuse/abuse of antibiotics that has led to the sobering emergence of bacteria resistant to multiple antibiotics, has mandated that we develop novel approaches to better manage these diseases or, ideally, prevent them. Biofilms play a key role in the pathogenesis of chronic and recurrent bacterial diseases but are difficult, if not impossible, to eradicate with antibiotics. We developed a vaccine antigen designed to mediate biofilm disruption; however, it is also important that delivery of this vaccine does not induce collateral damage to the microbiome. The studies described here validated a vaccine approach that targets biofilms without the consequences of an altered gut microbiome. While delivery of the antibiotic most commonly given to children with ear infections did indeed alter the gut microbiome, as expected, immunization via traditional injection or by noninvasive delivery to the skin did not result in changes to the chinchilla gut microbiome.
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Shiri T, Khan K, Keaney K, Mukherjee G, McCarthy ND, Petrou S. Pneumococcal Disease: A Systematic Review of Health Utilities, Resource Use, Costs, and Economic Evaluations of Interventions. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2019; 22:1329-1344. [PMID: 31708071 DOI: 10.1016/j.jval.2019.06.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 06/20/2019] [Accepted: 06/27/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Pneumococcal diseases cause substantial mortality, morbidity, and economic burden. Evidence on data inputs for economic evaluations of interventions targeting pneumococcal disease is critical. OBJECTIVES To summarize evidence on resource use, costs, health utilities, and cost-effectiveness for pneumococcal disease and associated interventions to inform future economic analyses. METHODS We searched MEDLINE, Embase, Web of Science, CINAHL, PsycINFO, EconLit, and Cochrane databases for peer-reviewed studies in English on pneumococcal disease that reported health utilities using direct or indirect valuation methods, resource use, costs, or cost-effectiveness of intervention programs, and summarized the evidence descriptively. RESULTS We included 383 studies: 9 reporting health utilities, 131 resource use, 160 economic costs of pneumococcal disease, 95 both resource use and costs, and 178 economic evaluations of pneumococcal intervention programs. Health state utility values ranged from 0 to 1 for both meningitis and otitis media and from 0.3 to 0.7 for both pneumonia and sepsis. Hospitalization was shortest for otitis media (range: 0.1-5 days) and longest for sepsis/septicemia (6-48). The main categories of costs reported were drugs, hospitalization, and household or employer costs. Resource use was reported in hospital length of stay and number of contacts with general practitioners. Costs and resource use significantly varied among population ages, disease conditions, and settings. Current vaccination programs for both adults and children, antibiotic use and outreach programs to promote vaccination, early disease detection, and educational programs are cost-effective in most countries. CONCLUSION This study has generated a comprehensive repository of health economic evidence on pneumococcal disease that can be used to inform future economic evaluations of pneumococcal disease intervention programs.
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Affiliation(s)
- Tinevimbo Shiri
- Liverpool School of Tropical Medicine, Liverpool, England, UK; Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, England, UK.
| | - Kamran Khan
- Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, England, UK
| | - Katherine Keaney
- Population Evidence and Technologies, Warwick Medical School, University of Warwick, England, UK
| | - Geetanjali Mukherjee
- Population Evidence and Technologies, Warwick Medical School, University of Warwick, England, UK
| | - Noel D McCarthy
- Population Evidence and Technologies, Warwick Medical School, University of Warwick, England, UK
| | - Stavros Petrou
- Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, England, UK; Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, England, UK
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10
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Wigand M, Hoffmann TK, Ryan AF, Wollenberg B, Leichtle A. [The role of innate immunity in otitis media]. HNO 2019; 66:464-471. [PMID: 29589044 DOI: 10.1007/s00106-018-0501-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Otitis media (OM) belongs to the most common pediatric diseases and causes more medical contacts, surgical interventions, and drug prescriptions than any other infectious disease. Recent findings have identified a critical role of innate immunity in recovery from OM. The middle ear mucosa identifies invading pathogens by sensing pathogen-associated molecule patterns (PAMPs) via pattern recognition receptors such as the Toll-like receptors (TLRs). They generate immediate antimicrobial responses and cytokine release, leading to an inflammatory reaction as seen in acute or chronic OM. Cross-talk between TLRs can enhance or suppress the healing process in the middle ear. In order to prevent over-activation on the one hand and insufficient immune response on the other, the signaling network between different TLRs must be integrated and controlled by positive and negative feedback loops. This guarantees a proper immune response in the middle ear after infection. In this review, we focus on the involvement of the innate immune system and TLRs in OM, as well on their relevance for new vaccination strategies and immunotherapies.
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Affiliation(s)
- M Wigand
- Klinik für Hals‑, Nasen‑, Ohrenheilkunde, Kopf und Halschirurgie, Universitätsklinik Ulm, Frauensteige 12, 89075, Ulm, Deutschland
| | - T K Hoffmann
- Klinik für Hals‑, Nasen‑, Ohrenheilkunde, Kopf und Halschirurgie, Universitätsklinik Ulm, Frauensteige 12, 89075, Ulm, Deutschland
| | - A F Ryan
- Dept. of Otolaryngology, University of California San Diego, (UCSD), San Diego, USA
| | - B Wollenberg
- Klinik für Hals‑, Nasen‑, Ohrenheilkunde, Universitätsklinikum Schleswig Holstein, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Deutschland
| | - A Leichtle
- Klinik für Hals‑, Nasen‑, Ohrenheilkunde, Kopf und Halschirurgie, Universitätsklinik Ulm, Frauensteige 12, 89075, Ulm, Deutschland.
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11
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Fortanier AC, Venekamp RP, Boonacker CWB, Hak E, Schilder AGM, Sanders EAM, Damoiseaux RAMJ. Pneumococcal conjugate vaccines for preventing acute otitis media in children. Cochrane Database Syst Rev 2019; 5:CD001480. [PMID: 31135969 PMCID: PMC6537667 DOI: 10.1002/14651858.cd001480.pub5] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND Prior to introducing pneumococcal conjugate vaccines (PCVs), Streptococcus pneumoniae was most commonly isolated from middle ear fluid of children with acute otitis media (AOM). Reducing nasopharyngeal colonisation of this bacterium by PCVs may lead to a decline in AOM. The effects of PCVs deserve ongoing monitoring since studies from the post-PCV era report a shift in causative otopathogens towards non-vaccine serotypes and other bacteria. This updated Cochrane Review was first published in 2002 and updated in 2004, 2009, and 2014. The review title was changed (to include the population, i.e. children) for this update. OBJECTIVES To assess the effect of PCVs in preventing AOM in children up to 12 years of age. SEARCH METHODS We searched CENTRAL, MEDLINE, Embase, CINAHL, LILACS, Web of Science, and trials registers (ClinicalTrials.gov and WHO ICTRP) to 29 March 2019. SELECTION CRITERIA Randomised controlled trials of PCV versus placebo or control vaccine. DATA COLLECTION AND ANALYSIS We used the standard methodological procedures expected by Cochrane. The primary outcomes were frequency of all-cause AOM and adverse effects. Secondary outcomes included frequency of pneumococcal AOM and frequency of recurrent AOM (defined as three or more AOM episodes in six months or four or more in one year). We used GRADE to assess the quality of the evidence. MAIN RESULTS We included 14 publications of 11 trials (60,733 children, range 74 to 37,868 per trial) of 7- to 11-valent PCVs versus control vaccines (meningococcus type C vaccine in three trials, and hepatitis A or B vaccine in eight trials). We included two additional trials for this update. We did not find any relevant trials with the newer 13-valent PCV. Most studies were funded by pharmaceutical companies. Overall, risk of bias was low. In seven trials (59,415 children) PCVs were administered in early infancy, while four trials (1318 children) included children aged one year and over who were either healthy or had a history of respiratory illness. There was considerable clinical heterogeneity across studies, therefore we did not perform meta-analyses.Adverse eventsNine trials reported on adverse effects (77,389 children; high-quality evidence). Mild local reactions and fever were common in both groups, and occurred more frequently in PCV than in control vaccine groups: redness (< 2.5 cm): 5% to 20% versus 0% to 16%; swelling (< 2.5 cm): 5% to 12% versus 0% to 8%; and fever (< 39 °C): 15% to 44% versus 8% to 25%. More severe redness (> 2.5 cm), swelling (> 2.5 cm), and fever (> 39 °C) occurred less frequently (0% to 0.9%, 0.1% to 1.3%, and 0.4% to 2.5%, respectively in children receiving PCV) and did not differ significantly between PCV and control vaccine groups. Pain or tenderness, or both was reported more frequently in PCV than in control vaccine groups: 3% to 38% versus 0% to 8%. Serious adverse events judged causally related to vaccination were rare and did not differ significantly between groups, and no fatal serious adverse event judged causally related to vaccination was reported.PCV administered in early infancyPCV7The effect of a licenced 7-valent PCV with CRM197 as carrier protein (CRM197-PCV7) on all-cause AOM varied from -5% (95% confidence interval (CI) -25% to 12%) relative risk reduction (RRR) in high-risk infants (1 trial; 944 children; moderate-quality evidence) to 6% (95% CI -4% to 16%; 1 trial; 1662 children) and 6% (95% CI 4% to 9%; 1 trial; 37,868 children) RRR in low-risk infants (high-quality evidence). PCV7 with the outer membrane protein complex of Neisseria meningitidis serogroup B as carrier protein (OMPC-PCV7), was not associated with a reduction in all-cause AOM (RRR -1%, 95% CI -12% to 10%; 1 trial; 1666 children; high-quality evidence).CRM197-PCV7 and OMPC-PCV7 were associated with 20% (95% CI 7% to 31%) and 25% (95% CI 11% to 37%) RRR in pneumococcal AOM, respectively (2 trials; 3328 children; high-quality evidence) and CRM197-PCV7 with 9% (95% CI -12% to 27%) to 10% (95% CI 7% to 13%) RRR in recurrent AOM (2 trials; 39,530 children; high-quality evidence).PHiD-CV10/11The effect of a licenced 10-valent PCV conjugated to protein D, a surface lipoprotein of Haemophilus influenzae, (PHiD-CV10) on all-cause AOM varied from 6% (95% CI -6% to 17%; 1 trial; 5095 children) to 15% (95% CI -1% to 28%; 1 trial; 7359 children) RRR in healthy infants (moderate-quality evidence). PHiD-CV11 was associated with 34% (95% CI 21% to 44%) RRR in all-cause AOM (1 trial; 4968 children; high-quality evidence).PHiD-CV10 and PHiD-CV11 were associated with 53% (95% CI 16% to 74%) and 52% (95% CI 37% to 63%) RRR in pneumococcal AOM (2 trials; 12,327 children; high-quality evidence) and PHiD-CV11 with 56% (95% CI -2% to 80%) RRR in recurrent AOM (1 trial; 4968 children; moderate-quality evidence).PCV administered at later agePCV7We found no evidence of a beneficial effect on all-cause AOM of administering CRM197-PCV7 in children aged 1 to 7 years with a history of respiratory illness or frequent AOM (2 trials; 457 children; high-quality evidence) and CRM197-PCV7 combined with a trivalent influenza vaccine in children aged 18 to 72 months with a history of respiratory tract infections (1 trial; 597 children; high-quality evidence).CRM197-PCV9In 1 trial including 264 healthy day-care attendees aged 1 to 3 years, CRM197-PCV9 was associated with 17% (95% CI -2% to 33%) RRR in parent-reported all-cause OM (low-quality evidence). AUTHORS' CONCLUSIONS Administration of the licenced CRM197-PCV7 and PHiD-CV10 during early infancy is associated with large relative risk reductions in pneumococcal AOM. However, the effects of these vaccines on all-cause AOM is far more uncertain. We found no evidence of a beneficial effect on all-cause AOM of administering PCVs in high-risk infants, after early infancy (i.e. in children one year and above), and in older children with a history of respiratory illness. Compared to control vaccines, PCVs were associated with an increase in mild local reactions (redness, swelling), fever, and pain and/or tenderness. We found no evidence of a difference in more severe local reactions, fever, or serious adverse events judged causally related to vaccination.
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Affiliation(s)
- Alexandre C Fortanier
- University Medical Center Utrecht, Utrecht UniversityJulius Center for Health Sciences and Primary CareHP: Str. 6.131PO Box 85500UtrechtNetherlands3508 GA
| | - Roderick P Venekamp
- University Medical Center Utrecht, Utrecht UniversityJulius Center for Health Sciences and Primary CareHP: Str. 6.131PO Box 85500UtrechtNetherlands3508 GA
| | - Chantal WB Boonacker
- University Medical Center Utrecht, Utrecht UniversityJulius Center for Health Sciences and Primary CareHP: Str. 6.131PO Box 85500UtrechtNetherlands3508 GA
| | - Eelko Hak
- University GroningenGroningen Research Institute of PharmacyA. Deuslinglaan 19713 AV GroningenNetherlands
| | - Anne GM Schilder
- University College LondonevidENT, Ear Institute330 Grays Inn RoadLondonUKWC1X 8DA
- University Medical Center Utrecht, Utrecht UniversityJulius Center for Health Sciences and Primary Care & Department of OtorhinolaryngologyUtrechtNetherlands
| | - Elisabeth AM Sanders
- Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht UniversityDepartment of Pediatric Immunology and Infectious DiseasesPO Box 85090UtrechtNetherlands3508 AB
- The National Institute for Public Health and the EnvironmentCenter for Infectious DiseasesBilthovenNetherlands
| | - Roger AMJ Damoiseaux
- University Medical Center Utrecht, Utrecht UniversityJulius Center for Health Sciences and Primary CareHP: Str. 6.131PO Box 85500UtrechtNetherlands3508 GA
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12
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Lavelle TA, D'Cruz BN, Mohit B, Ungar WJ, Prosser LA, Tsiplova K, Vera-Llonch M, Lin PJ. Family Spillover Effects in Pediatric Cost-Utility Analyses. APPLIED HEALTH ECONOMICS AND HEALTH POLICY 2019; 17:163-174. [PMID: 30350218 DOI: 10.1007/s40258-018-0436-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
BACKGROUND Childhood illness can impose significant costs and health strains on family members, but these are not routinely captured by pediatric economic evaluations. This review investigated how family "spillover effects" related to costs and health outcomes are considered in pediatric cost-utility analyses (CUAs). METHODS We reviewed pediatric CUAs published between 2000 and 2015 using the Tufts Medical Center Cost-effectiveness Analysis (CEA) Registry and the Pediatric Economic Database Evaluation (PEDE) Registry. We selected studies conducted from the societal perspective and included in both registries. We investigated how frequently family spillover was incorporated into analyses, and how the inclusion of spillover health effects and costs changed CUA results. RESULTS We found 142 pediatric CUAs meeting inclusion criteria. Of those, 105 (72%) considered either family spillover costs (n = 98 time costs, n = 33 out-of-pocket costs, n = 2 caregiver healthcare costs) or health outcomes (n = 15). Twenty-four studies included 43 pairs of incremental cost-effectiveness ratios (ICERs) with and without spillover. In 19 pairs of ICERs, adding spillover changed the ICER enough to cross a common cost-effectiveness threshold (i.e., $50,000/QALY, $100,000/QALY, $150,000/QALY; values are in 2016 US$). Incorporating spillover generally made interventions more cost-effective (n = 18; 42%), or did not change CUA results enough to cross a threshold (n = 24; 56%). Including family spillover reduced ICERs by 31% ($40,000/QALY) on average. CONCLUSION Most pediatric CUAs conducted from a societal perspective include family costs but fewer include family health effects. Inclusion of family spillover effects tends to make CUA results more favorable. Future pediatric CUAs should aim to more fully incorporate the family burden of illness.
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Affiliation(s)
- Tara A Lavelle
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, 800 Washington St, #63, Boston, MA, 02111, USA.
| | - Brittany N D'Cruz
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, 800 Washington St, #63, Boston, MA, 02111, USA
| | - Babak Mohit
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, 800 Washington St, #63, Boston, MA, 02111, USA
| | - Wendy J Ungar
- Program of Child Health Evaluative Sciences, The Hospital for Sick Children Research Institute, Toronto, ON, Canada
- Institute for Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada
| | - Lisa A Prosser
- Child Health Evaluation and Research Unit, Department of Pediatrics, University of Michigan, Ann Arbor, MI, USA
| | - Kate Tsiplova
- Program of Child Health Evaluative Sciences, The Hospital for Sick Children Research Institute, Toronto, ON, Canada
| | | | - Pei-Jung Lin
- Center for the Evaluation of Value and Risk in Health, Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, 800 Washington St, #63, Boston, MA, 02111, USA
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13
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Talathi S, Gupta N, Sethuram S, Khanna S, Sitnitskaya Y. Otitis Media in Fully Vaccinated Preschool Children in the Pneumococcal Conjugate Vaccine Era. Glob Pediatr Health 2018; 4:2333794X17749668. [PMID: 29308427 PMCID: PMC5751904 DOI: 10.1177/2333794x17749668] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 11/08/2017] [Indexed: 11/17/2022] Open
Abstract
Objectives. To evaluate the effect of pneumococcal conjugate vaccine (PCV13) on the burden of acute otitis media (AOM) and to evaluate the characteristics of AOM versus otitis media with effusion (OME) in the 2 PCV periods. Methods. A cohort of fully vaccinated children aged 18 to 60 months diagnosed with AOM from 2006 to 2015 was identified. Patients with otorrhea/bulging tympanic membrane were considered as true AOM, while those without bulging/otorrhea were considered to have OME. Burden of true AOM in the PCV7 and PCV13 periods and clinical features of true AOM versus OME were compared. Results. Of 393 episodes in our cohort, 50.8% occurred in PCV7 period. Burden of true AOM in the 2 PCV groups was similar: 26% in PCV7 versus 26.4% in PCV13 (odds ratio [OR] = 1.02, 95% confidence interval [CI] = 0.65-1.60). Factors significantly associated with OME were cold season (OR = 1.54, 95% CI = 1.04-2.4), fever (OR = 2.05, 95% CI = 1.29-3.3), and recurrence (OR = 2.24, 95% CI = 1.22-4.09). No complications of AOM were identified. Majority episodes were treated with antibiotics. Conclusion. Unlike the role of PCV13 in reducing invasive pneumococcal disease, its effect on reducing the burden of AOM is minimal as compared with PCV7. With regard to characteristics of AOM versus OME, findings of tympanic membrane should be used to suggest a diagnosis of AOM, instead of occurrence of fever or recurrence of AOM episodes. Using this approach would help in guiding the use of antibiotics appropriately.
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14
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Hughes AL, Roberson D, Bannos C, Trudell EK, Vernacchio L. Appropriateness of Tympanostomy Tubes in the Boston Metropolitan Area: Are the AAO-HNSF Guidelines Being Met? Otolaryngol Head Neck Surg 2017; 157:1041-1047. [DOI: 10.1177/0194599817721454] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Introduction Otitis media (OM) is the most common reason children receive general anesthesia, with bilateral tympanostomy tube (TT) insertion the second most common surgery in children. Prior research suggests overuse of TT. As part of a project designed to improve appropriateness of OM referrals, we evaluated appropriateness of TT insertion in a patient cohort. Methods Patients younger than 9 years with initial otolaryngology (ORL) visits in academic and private office settings for OM from January 1, 2012, to August 31, 2013, were identified through claims database. A detailed retrospective chart review of patients undergoing TT insertion was performed to determine appropriateness of TT insertion per the 2013 American Academy of Otolaryngology—Head and Neck Surgery Foundation (AAO-HNSF) guidelines. Results A total of 120 patients undergoing TT insertion were randomly chosen for detailed chart review; 32 patients were excluded. Sixty-six (75%) of 88 patients available for analysis met AAO-HNSF guidelines for TT. Recurrent acute OM with middle ear effusion was the most common indication (56%). Other indications included chronic OME and TT in at-risk patients with speech, learning, or behavioral delays. Of the 22 patients undergoing TT insertion not meeting AAO-HNSF guidelines, 11(50%) had abnormal exams, but were 1 to 2 infections short of meeting guidelines; 7 (33%) had normal exams but met criteria for number of infections. Discussion Contrary to prior publications, 75% of patients undergoing TT insertion had an appropriate indication per AAO-HNSF guidelines. In only 5% was TT insertion a substantial departure from guidelines. Implications for Practice The study outcomes suggest appropriate clinical decision making, improved guideline adherence, and better guideline applicability from the previously published 1994 and 2004 guidelines.
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Affiliation(s)
- Amy L. Hughes
- Department of Otolaryngology and Communication Enhancement, Boston Children’s Hospital, Boston, Massachusetts, USA
- Department of Otology and Laryngology, Harvard Medical School, Boston, Massachusetts, USA
| | - David Roberson
- Department of Otolaryngology and Communication Enhancement, Boston Children’s Hospital, Boston, Massachusetts, USA
- Department of Otology and Laryngology, Harvard Medical School, Boston, Massachusetts, USA
| | - Cassandra Bannos
- Department of Otolaryngology and Communication Enhancement, Boston Children’s Hospital, Boston, Massachusetts, USA
| | - Emily K. Trudell
- Pediatric Physicians’ Organization at Children’s, Brookline, Massachusetts, USA
| | - Louis Vernacchio
- Pediatric Physicians’ Organization at Children’s, Brookline, Massachusetts, USA
- Division of General Pediatrics, Boston Children’s Hospital, Boston, Massachusetts, USA
- Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA
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15
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Van Dyke MK, Pirçon JY, Cohen R, Madhi SA, Rosenblüt A, Macias Parra M, Al-Mazrou K, Grevers G, Lopez P, Naranjo L, Pumarola F, Sonsuwan N, Hausdorff WP. Etiology of Acute Otitis Media in Children Less Than 5 Years of Age: A Pooled Analysis of 10 Similarly Designed Observational Studies. Pediatr Infect Dis J 2017; 36:274-281. [PMID: 27918383 PMCID: PMC5312727 DOI: 10.1097/inf.0000000000001420] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/27/2016] [Indexed: 11/26/2022]
Abstract
BACKGROUND Acute otitis media (AOM) is an important cause of childhood morbidity and antibiotic prescriptions. However, the relative importance of the well-known otopathogens, Streptococcus pneumoniae (Spn) and Haemophilus influenzae (Hflu), remains unclear because of a limited number of tympanocentesis-based studies that vary significantly in populations sampled, case definitions and heptavalent pneumococcal conjugate vaccine use. METHODS We conducted a pooled analysis of results from 10 AOM etiology studies of similar design, the protocols of which were derived from a common protocol and conducted in children 3 months to 5 years of age in different countries. Generalized estimating equations were used to account for within-study correlations. RESULTS The majority, 55.5% (95% confidence interval: 47.0%-65.7%) of 1124 AOM episodes, were bacterial pathogen positive: 29.1% (24.8%-34.1%) yielded Hflu and 23.6% (19.0%-29.2%) Spn. Proportions of Hflu and Spn were higher and lower, respectively, in heptavalent pneumococcal conjugate vaccine-vaccinated children. Hflu and Spn were each isolated from 20% to 35% of children in every 1-year age range. Hflu was less likely to be isolated from first (vs. subsequent) episodes [relative risk (RR): 0.71 (0.60-0.84)]. Spn was more often isolated from sporadic (vs. recurrent) cases [RR: 0.76 (0.61-0.97)]; the opposite was true for Hflu [RR: 1.4 (1.00-1.96)]. Spn cases were more likely to present with severe (vs. mild) symptoms [RR: 1.42 (1.01-2.01)] and Hflu cases with severe tympanic membrane inflammation [RR: 1.35 (1.06-1.71)]. CONCLUSIONS Spn and Hflu remain the leading otopathogens in all populations examined. While associated with overlapping symptoms and severity, they exhibit some differences in their likelihood to cause disease in specific subpopulations.
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Affiliation(s)
- Melissa K. Van Dyke
- From the GSK Vaccines, Wavre, Belgium; Association Clinique et Thérapeutique Infantile du Val de Marne (ACTIV), Saint-Maur-des-Fossés, CHI Créteil and UPEC, France; Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, and Department of Science and Technology/National Research Foundation: Vaccine Preventable Diseases, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa; Unidad de Otorrinolaringologia, Hospital Dr Sotero del Rio, Puente Alto, Santiago, Chile; Departamento de Infectologia, Instituto Nacional de Pediatría de la Secretaría de Salud (SSA), Mexico City, Mexico; Otolaryngology Department, King Saud University & King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; ENT-Center, Prinzenweg 1, 82319 Starnberg, Germany; Centros de Estudios Infectologia Pediatrica, Cali, Colombia; GSK Biologicals, Ciudad Panama, Panama; Sección de ORL Pediátrica, Hospital Universitari Vall d’Hebron, Barcelona, Spain; and Otolaryngology Department, Faculty of Medicine Chiang Mai University, Chiang Mai, Thailand
| | - Jean-Yves Pirçon
- From the GSK Vaccines, Wavre, Belgium; Association Clinique et Thérapeutique Infantile du Val de Marne (ACTIV), Saint-Maur-des-Fossés, CHI Créteil and UPEC, France; Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, and Department of Science and Technology/National Research Foundation: Vaccine Preventable Diseases, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa; Unidad de Otorrinolaringologia, Hospital Dr Sotero del Rio, Puente Alto, Santiago, Chile; Departamento de Infectologia, Instituto Nacional de Pediatría de la Secretaría de Salud (SSA), Mexico City, Mexico; Otolaryngology Department, King Saud University & King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; ENT-Center, Prinzenweg 1, 82319 Starnberg, Germany; Centros de Estudios Infectologia Pediatrica, Cali, Colombia; GSK Biologicals, Ciudad Panama, Panama; Sección de ORL Pediátrica, Hospital Universitari Vall d’Hebron, Barcelona, Spain; and Otolaryngology Department, Faculty of Medicine Chiang Mai University, Chiang Mai, Thailand
| | - Robert Cohen
- From the GSK Vaccines, Wavre, Belgium; Association Clinique et Thérapeutique Infantile du Val de Marne (ACTIV), Saint-Maur-des-Fossés, CHI Créteil and UPEC, France; Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, and Department of Science and Technology/National Research Foundation: Vaccine Preventable Diseases, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa; Unidad de Otorrinolaringologia, Hospital Dr Sotero del Rio, Puente Alto, Santiago, Chile; Departamento de Infectologia, Instituto Nacional de Pediatría de la Secretaría de Salud (SSA), Mexico City, Mexico; Otolaryngology Department, King Saud University & King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; ENT-Center, Prinzenweg 1, 82319 Starnberg, Germany; Centros de Estudios Infectologia Pediatrica, Cali, Colombia; GSK Biologicals, Ciudad Panama, Panama; Sección de ORL Pediátrica, Hospital Universitari Vall d’Hebron, Barcelona, Spain; and Otolaryngology Department, Faculty of Medicine Chiang Mai University, Chiang Mai, Thailand
| | - Shabir A. Madhi
- From the GSK Vaccines, Wavre, Belgium; Association Clinique et Thérapeutique Infantile du Val de Marne (ACTIV), Saint-Maur-des-Fossés, CHI Créteil and UPEC, France; Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, and Department of Science and Technology/National Research Foundation: Vaccine Preventable Diseases, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa; Unidad de Otorrinolaringologia, Hospital Dr Sotero del Rio, Puente Alto, Santiago, Chile; Departamento de Infectologia, Instituto Nacional de Pediatría de la Secretaría de Salud (SSA), Mexico City, Mexico; Otolaryngology Department, King Saud University & King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; ENT-Center, Prinzenweg 1, 82319 Starnberg, Germany; Centros de Estudios Infectologia Pediatrica, Cali, Colombia; GSK Biologicals, Ciudad Panama, Panama; Sección de ORL Pediátrica, Hospital Universitari Vall d’Hebron, Barcelona, Spain; and Otolaryngology Department, Faculty of Medicine Chiang Mai University, Chiang Mai, Thailand
| | - Andrés Rosenblüt
- From the GSK Vaccines, Wavre, Belgium; Association Clinique et Thérapeutique Infantile du Val de Marne (ACTIV), Saint-Maur-des-Fossés, CHI Créteil and UPEC, France; Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, and Department of Science and Technology/National Research Foundation: Vaccine Preventable Diseases, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa; Unidad de Otorrinolaringologia, Hospital Dr Sotero del Rio, Puente Alto, Santiago, Chile; Departamento de Infectologia, Instituto Nacional de Pediatría de la Secretaría de Salud (SSA), Mexico City, Mexico; Otolaryngology Department, King Saud University & King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; ENT-Center, Prinzenweg 1, 82319 Starnberg, Germany; Centros de Estudios Infectologia Pediatrica, Cali, Colombia; GSK Biologicals, Ciudad Panama, Panama; Sección de ORL Pediátrica, Hospital Universitari Vall d’Hebron, Barcelona, Spain; and Otolaryngology Department, Faculty of Medicine Chiang Mai University, Chiang Mai, Thailand
| | - Mercedes Macias Parra
- From the GSK Vaccines, Wavre, Belgium; Association Clinique et Thérapeutique Infantile du Val de Marne (ACTIV), Saint-Maur-des-Fossés, CHI Créteil and UPEC, France; Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, and Department of Science and Technology/National Research Foundation: Vaccine Preventable Diseases, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa; Unidad de Otorrinolaringologia, Hospital Dr Sotero del Rio, Puente Alto, Santiago, Chile; Departamento de Infectologia, Instituto Nacional de Pediatría de la Secretaría de Salud (SSA), Mexico City, Mexico; Otolaryngology Department, King Saud University & King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; ENT-Center, Prinzenweg 1, 82319 Starnberg, Germany; Centros de Estudios Infectologia Pediatrica, Cali, Colombia; GSK Biologicals, Ciudad Panama, Panama; Sección de ORL Pediátrica, Hospital Universitari Vall d’Hebron, Barcelona, Spain; and Otolaryngology Department, Faculty of Medicine Chiang Mai University, Chiang Mai, Thailand
| | - Khalid Al-Mazrou
- From the GSK Vaccines, Wavre, Belgium; Association Clinique et Thérapeutique Infantile du Val de Marne (ACTIV), Saint-Maur-des-Fossés, CHI Créteil and UPEC, France; Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, and Department of Science and Technology/National Research Foundation: Vaccine Preventable Diseases, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa; Unidad de Otorrinolaringologia, Hospital Dr Sotero del Rio, Puente Alto, Santiago, Chile; Departamento de Infectologia, Instituto Nacional de Pediatría de la Secretaría de Salud (SSA), Mexico City, Mexico; Otolaryngology Department, King Saud University & King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; ENT-Center, Prinzenweg 1, 82319 Starnberg, Germany; Centros de Estudios Infectologia Pediatrica, Cali, Colombia; GSK Biologicals, Ciudad Panama, Panama; Sección de ORL Pediátrica, Hospital Universitari Vall d’Hebron, Barcelona, Spain; and Otolaryngology Department, Faculty of Medicine Chiang Mai University, Chiang Mai, Thailand
| | - Gerhard Grevers
- From the GSK Vaccines, Wavre, Belgium; Association Clinique et Thérapeutique Infantile du Val de Marne (ACTIV), Saint-Maur-des-Fossés, CHI Créteil and UPEC, France; Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, and Department of Science and Technology/National Research Foundation: Vaccine Preventable Diseases, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa; Unidad de Otorrinolaringologia, Hospital Dr Sotero del Rio, Puente Alto, Santiago, Chile; Departamento de Infectologia, Instituto Nacional de Pediatría de la Secretaría de Salud (SSA), Mexico City, Mexico; Otolaryngology Department, King Saud University & King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; ENT-Center, Prinzenweg 1, 82319 Starnberg, Germany; Centros de Estudios Infectologia Pediatrica, Cali, Colombia; GSK Biologicals, Ciudad Panama, Panama; Sección de ORL Pediátrica, Hospital Universitari Vall d’Hebron, Barcelona, Spain; and Otolaryngology Department, Faculty of Medicine Chiang Mai University, Chiang Mai, Thailand
| | - Pio Lopez
- From the GSK Vaccines, Wavre, Belgium; Association Clinique et Thérapeutique Infantile du Val de Marne (ACTIV), Saint-Maur-des-Fossés, CHI Créteil and UPEC, France; Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, and Department of Science and Technology/National Research Foundation: Vaccine Preventable Diseases, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa; Unidad de Otorrinolaringologia, Hospital Dr Sotero del Rio, Puente Alto, Santiago, Chile; Departamento de Infectologia, Instituto Nacional de Pediatría de la Secretaría de Salud (SSA), Mexico City, Mexico; Otolaryngology Department, King Saud University & King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; ENT-Center, Prinzenweg 1, 82319 Starnberg, Germany; Centros de Estudios Infectologia Pediatrica, Cali, Colombia; GSK Biologicals, Ciudad Panama, Panama; Sección de ORL Pediátrica, Hospital Universitari Vall d’Hebron, Barcelona, Spain; and Otolaryngology Department, Faculty of Medicine Chiang Mai University, Chiang Mai, Thailand
| | - Laura Naranjo
- From the GSK Vaccines, Wavre, Belgium; Association Clinique et Thérapeutique Infantile du Val de Marne (ACTIV), Saint-Maur-des-Fossés, CHI Créteil and UPEC, France; Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, and Department of Science and Technology/National Research Foundation: Vaccine Preventable Diseases, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa; Unidad de Otorrinolaringologia, Hospital Dr Sotero del Rio, Puente Alto, Santiago, Chile; Departamento de Infectologia, Instituto Nacional de Pediatría de la Secretaría de Salud (SSA), Mexico City, Mexico; Otolaryngology Department, King Saud University & King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; ENT-Center, Prinzenweg 1, 82319 Starnberg, Germany; Centros de Estudios Infectologia Pediatrica, Cali, Colombia; GSK Biologicals, Ciudad Panama, Panama; Sección de ORL Pediátrica, Hospital Universitari Vall d’Hebron, Barcelona, Spain; and Otolaryngology Department, Faculty of Medicine Chiang Mai University, Chiang Mai, Thailand
| | - Felix Pumarola
- From the GSK Vaccines, Wavre, Belgium; Association Clinique et Thérapeutique Infantile du Val de Marne (ACTIV), Saint-Maur-des-Fossés, CHI Créteil and UPEC, France; Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, and Department of Science and Technology/National Research Foundation: Vaccine Preventable Diseases, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa; Unidad de Otorrinolaringologia, Hospital Dr Sotero del Rio, Puente Alto, Santiago, Chile; Departamento de Infectologia, Instituto Nacional de Pediatría de la Secretaría de Salud (SSA), Mexico City, Mexico; Otolaryngology Department, King Saud University & King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; ENT-Center, Prinzenweg 1, 82319 Starnberg, Germany; Centros de Estudios Infectologia Pediatrica, Cali, Colombia; GSK Biologicals, Ciudad Panama, Panama; Sección de ORL Pediátrica, Hospital Universitari Vall d’Hebron, Barcelona, Spain; and Otolaryngology Department, Faculty of Medicine Chiang Mai University, Chiang Mai, Thailand
| | - Nuntigar Sonsuwan
- From the GSK Vaccines, Wavre, Belgium; Association Clinique et Thérapeutique Infantile du Val de Marne (ACTIV), Saint-Maur-des-Fossés, CHI Créteil and UPEC, France; Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, and Department of Science and Technology/National Research Foundation: Vaccine Preventable Diseases, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa; Unidad de Otorrinolaringologia, Hospital Dr Sotero del Rio, Puente Alto, Santiago, Chile; Departamento de Infectologia, Instituto Nacional de Pediatría de la Secretaría de Salud (SSA), Mexico City, Mexico; Otolaryngology Department, King Saud University & King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; ENT-Center, Prinzenweg 1, 82319 Starnberg, Germany; Centros de Estudios Infectologia Pediatrica, Cali, Colombia; GSK Biologicals, Ciudad Panama, Panama; Sección de ORL Pediátrica, Hospital Universitari Vall d’Hebron, Barcelona, Spain; and Otolaryngology Department, Faculty of Medicine Chiang Mai University, Chiang Mai, Thailand
| | - William P. Hausdorff
- From the GSK Vaccines, Wavre, Belgium; Association Clinique et Thérapeutique Infantile du Val de Marne (ACTIV), Saint-Maur-des-Fossés, CHI Créteil and UPEC, France; Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, and Department of Science and Technology/National Research Foundation: Vaccine Preventable Diseases, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa; Unidad de Otorrinolaringologia, Hospital Dr Sotero del Rio, Puente Alto, Santiago, Chile; Departamento de Infectologia, Instituto Nacional de Pediatría de la Secretaría de Salud (SSA), Mexico City, Mexico; Otolaryngology Department, King Saud University & King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; ENT-Center, Prinzenweg 1, 82319 Starnberg, Germany; Centros de Estudios Infectologia Pediatrica, Cali, Colombia; GSK Biologicals, Ciudad Panama, Panama; Sección de ORL Pediátrica, Hospital Universitari Vall d’Hebron, Barcelona, Spain; and Otolaryngology Department, Faculty of Medicine Chiang Mai University, Chiang Mai, Thailand
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16
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Otsuka T, Brauer AL, Kirkham C, Sully EK, Pettigrew MM, Kong Y, Geller BL, Murphy TF. Antimicrobial activity of antisense peptide-peptide nucleic acid conjugates against non-typeable Haemophilus influenzae in planktonic and biofilm forms. J Antimicrob Chemother 2016; 72:137-144. [PMID: 27986898 DOI: 10.1093/jac/dkw384] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 08/10/2016] [Accepted: 08/16/2016] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Antisense peptide nucleic acids (PNAs) are synthetic polymers that mimic DNA/RNA and inhibit bacterial gene expression in a sequence-specific manner. METHODS To assess activity against non-typeable Haemophilus influenzae (NTHi), we designed six PNA-peptides that target acpP, encoding an acyl carrier protein. MICs and minimum biofilm eradication concentrations (MBECs) were determined. Resistant strains were selected by serial passages on media with a sub-MIC concentration of acpP-PNA. RESULTS The MICs of six acpP-PNA-peptides were 2.9-11 mg/L (0.63-2.5 μmol/L) for 20 clinical isolates, indicating susceptibility of planktonic NTHi. By contrast, MBECs were up to 179 mg/L (40 μmol/L). Compared with one original PNA-peptide (acpP-PNA1-3'N), an optimized PNA-peptide (acpP-PNA14-5'L) differs in PNA sequence and has a 5' membrane-penetrating peptide with a linker between the PNA and peptide. The optimized PNA-peptide had an MBEC ranging from 11 to 23 mg/L (2.5-5 μmol/L), indicating susceptibility. A resistant strain that was selected by the original acpP-PNA1-3'N had an SNP that introduced a stop codon in NTHI0044, which is predicted to encode an ATP-binding protein of a conserved ABC transporter. Deletion of NTHI0044 caused resistance to the original acpP-PNA1-3'N, but showed no effect on susceptibility to the optimized acpP-PNA14-5'L. The WT strain remained susceptible to the optimized PNA-peptide after 30 serial passages on media containing the optimized PNA-peptide. CONCLUSIONS A PNA-peptide that targets acpP, has a 5' membrane-penetrating peptide and has a linker shows excellent activity against planktonic and biofilm NTHi and is associated with a low risk for induction of resistance.
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Affiliation(s)
- Taketo Otsuka
- Division of Infectious Diseases, Department of Medicine, University at Buffalo, State University of New York, Buffalo, NY, USA.,Clinical and Translational Research Center, University at Buffalo, State University of New York, Buffalo, NY, USA
| | - Aimee L Brauer
- Division of Infectious Diseases, Department of Medicine, University at Buffalo, State University of New York, Buffalo, NY, USA.,Clinical and Translational Research Center, University at Buffalo, State University of New York, Buffalo, NY, USA
| | - Charmaine Kirkham
- Division of Infectious Diseases, Department of Medicine, University at Buffalo, State University of New York, Buffalo, NY, USA.,Clinical and Translational Research Center, University at Buffalo, State University of New York, Buffalo, NY, USA
| | - Erin K Sully
- Department of Microbiology, Oregon State University, Corvallis, OR, USA
| | - Melinda M Pettigrew
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, Yale University, New Haven, CT, USA
| | - Yong Kong
- Department of Molecular Biophysics and Biochemistry, W.M. Keck Foundation Biotechnology Resource Laboratory, Yale University, New Haven, CT, USA
| | - Bruce L Geller
- Department of Microbiology, Oregon State University, Corvallis, OR, USA
| | - Timothy F Murphy
- Division of Infectious Diseases, Department of Medicine, University at Buffalo, State University of New York, Buffalo, NY, USA .,Clinical and Translational Research Center, University at Buffalo, State University of New York, Buffalo, NY, USA.,Department of Microbiology and Immunology, University at Buffalo, State University of New York, Buffalo, NY, USA
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17
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Rosenfeld RM, Shin JJ, Schwartz SR, Coggins R, Gagnon L, Hackell JM, Hoelting D, Hunter LL, Kummer AW, Payne SC, Poe DS, Veling M, Vila PM, Walsh SA, Corrigan MD. Clinical Practice Guideline: Otitis Media with Effusion (Update). Otolaryngol Head Neck Surg 2016; 154:S1-S41. [PMID: 26832942 DOI: 10.1177/0194599815623467] [Citation(s) in RCA: 313] [Impact Index Per Article: 39.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE This update of a 2004 guideline codeveloped by the American Academy of Otolaryngology-Head and Neck Surgery Foundation, the American Academy of Pediatrics, and the American Academy of Family Physicians, provides evidence-based recommendations to manage otitis media with effusion (OME), defined as the presence of fluid in the middle ear without signs or symptoms of acute ear infection. Changes from the prior guideline include consumer advocates added to the update group, evidence from 4 new clinical practice guidelines, 20 new systematic reviews, and 49 randomized control trials, enhanced emphasis on patient education and shared decision making, a new algorithm to clarify action statement relationships, and new and expanded recommendations for the diagnosis and management of OME. PURPOSE The purpose of this multidisciplinary guideline is to identify quality improvement opportunities in managing OME and to create explicit and actionable recommendations to implement these opportunities in clinical practice. Specifically, the goals are to improve diagnostic accuracy, identify children who are most susceptible to developmental sequelae from OME, and educate clinicians and patients regarding the favorable natural history of most OME and the clinical benefits for medical therapy (eg, steroids, antihistamines, decongestants). Additional goals relate to OME surveillance, hearing and language evaluation, and management of OME detected by newborn screening. The target patient for the guideline is a child aged 2 months through 12 years with OME, with or without developmental disabilities or underlying conditions that predispose to OME and its sequelae. The guideline is intended for all clinicians who are likely to diagnose and manage children with OME, and it applies to any setting in which OME would be identified, monitored, or managed. This guideline, however, does not apply to patients <2 months or >12 years old. ACTION STATEMENTS The update group made strong recommendations that clinicians (1) should document the presence of middle ear effusion with pneumatic otoscopy when diagnosing OME in a child; (2) should perform pneumatic otoscopy to assess for OME in a child with otalgia, hearing loss, or both; (3) should obtain tympanometry in children with suspected OME for whom the diagnosis is uncertain after performing (or attempting) pneumatic otoscopy; (4) should manage the child with OME who is not at risk with watchful waiting for 3 months from the date of effusion onset (if known) or 3 months from the date of diagnosis (if onset is unknown); (5) should recommend against using intranasal or systemic steroids for treating OME; (6) should recommend against using systemic antibiotics for treating OME; and (7) should recommend against using antihistamines, decongestants, or both for treating OME.The update group made recommendations that clinicians (1) should document in the medical record counseling of parents of infants with OME who fail a newborn screening regarding the importance of follow-up to ensure that hearing is normal when OME resolves and to exclude an underlying sensorineural hearing loss; (2) should determine if a child with OME is at increased risk for speech, language, or learning problems from middle ear effusion because of baseline sensory, physical, cognitive, or behavioral factors; (3) should evaluate at-risk children for OME at the time of diagnosis of an at-risk condition and at 12 to 18 months of age (if diagnosed as being at risk prior to this time); (4) should not routinely screen children for OME who are not at risk and do not have symptoms that may be attributable to OME, such as hearing difficulties, balance (vestibular) problems, poor school performance, behavioral problems, or ear discomfort; (5) should educate children with OME and their families regarding the natural history of OME, need for follow-up, and the possible sequelae; (6) should obtain an age-appropriate hearing test if OME persists for 3 months or longer OR for OME of any duration in an at-risk child; (7) should counsel families of children with bilateral OME and documented hearing loss about the potential impact on speech and language development; (8) should reevaluate, at 3- to 6-month intervals, children with chronic OME until the effusion is no longer present, significant hearing loss is identified, or structural abnormalities of the eardrum or middle ear are suspected; (9) should recommend tympanostomy tubes when surgery is performed for OME in a child <4 years old; adenoidectomy should not be performed unless a distinct indication exists (nasal obstruction, chronic adenoiditis); (10) should recommend tympanostomy tubes, adenoidectomy, or both when surgery is performed for OME in a child ≥4 years old; and (11) should document resolution of OME, improved hearing, or improved quality of life when managing a child with OME.
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Affiliation(s)
- Richard M Rosenfeld
- Department of Otolaryngology, SUNY Downstate Medical Center, Brooklyn, New York, USA
| | - Jennifer J Shin
- Division of Otolaryngology, Harvard Medical School, Boston, Massachusetts, USA
| | - Seth R Schwartz
- Department of Otolaryngology, Virginia Mason Medical Center, Seattle, Washington, USA
| | - Robyn Coggins
- Society for Middle Ear Disease, Pittsburgh, Pennsylvania, USA
| | - Lisa Gagnon
- Connecticut Pediatric Otolaryngology, Madison, Connecticut, USA
| | | | - David Hoelting
- American Academy of Family Physicians, Pender, Nebraska, USA
| | - Lisa L Hunter
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Ann W Kummer
- University of Virginia Health System, Charlottesville, Virginia, USA
| | - Spencer C Payne
- University of Virginia Health System, Charlottesville, Virginia, USA
| | - Dennis S Poe
- Department of Otology and Laryngology, Harvard Medical School and Boston Children's Hospital, Boston, Massachusetts, USA
| | - Maria Veling
- University of Texas-Southwestern Medical Center/Children's Medical Center-Dallas, Dallas, Texas, USA
| | - Peter M Vila
- Department of Otolaryngology-Head and Neck Surgery, Washington University School of Medicine in St Louis, St Louis, Missouri, USA
| | - Sandra A Walsh
- Consumers United for Evidence-Based Healthcare, Davis, California, USA
| | - Maureen D Corrigan
- American Academy of Otolaryngology-Head and Neck Surgery Foundation, Alexandria, Virginia, USA
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18
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Fitzpatrick MC, Wenzel NS, Scarpino SV, Althouse BM, Atkins KE, Galvani AP, Townsend JP. Cost-effectiveness of next-generation vaccines: The case of pertussis. Vaccine 2016; 34:3405-11. [PMID: 27087151 DOI: 10.1016/j.vaccine.2016.04.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 04/01/2016] [Accepted: 04/04/2016] [Indexed: 12/19/2022]
Abstract
Despite steady vaccination coverage rates, pertussis incidence in the United States has continued to rise. This public health challenge has motivated calls for the development of a new vaccine with greater efficacy and duration of protection. Any next-generation vaccine would likely come at a higher cost, and must provide sufficient health benefits beyond those provided by the current vaccine in order to be deemed cost-effective. Using an age-structured transmission model of pertussis, we quantified the health and economic benefits of a next-generation vaccine that would enhance either the efficacy or duration of protection of the childhood series, the duration of the adult booster, or a combination. We developed a metric, the maximum cost-effective price increase (MCPI), to compare the potential value of such improvements. The MCPI estimates the per-dose price increase that would maintain the cost-effectiveness of pertussis vaccination. We evaluated the MCPI across a range of potential single and combined improvements to the pertussis vaccine. As an upper bound, we found that a next-generation vaccine which could achieve perfect efficacy for the childhood series would permit an MCPI of $18 per dose (95% CI: $12-$31). Pertussis vaccine improvements that extend the duration of protection to an average of 75 years would allow for an MCPI of $22 per dose for the childhood series (CI: $10-$33) or $12 for the adult booster (CI: $4-$18). Despite the short duration of the adult booster, improvements to the childhood series could be more valuable than improvements to the adult booster. Combining improvements in both efficacy and duration, a childhood series with perfect efficacy and average duration of 75 years would permit an MCPI of $39 per dose, the highest of any scenario evaluated. Our results highlight the utility of the MCPI metric in evaluating potential vaccines or other interventions when prices are unknown.
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Affiliation(s)
- Meagan C Fitzpatrick
- Center for Infectious Disease Modeling and Analysis, Yale School of Public Health, New Haven, CT, USA.
| | - Natasha S Wenzel
- Center for Infectious Disease Modeling and Analysis, Yale School of Public Health, New Haven, CT, USA; Center for Inference and Dynamics of Infectious Disease, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | | | - Benjamin M Althouse
- Santa Fe Institute, Santa Fe, NM, USA; Institute for Disease Modeling, Bellevue, WA, USA; New Mexico State University, Las Cruces, NM, USA
| | - Katherine E Atkins
- Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Alison P Galvani
- Center for Infectious Disease Modeling and Analysis, Yale School of Public Health, New Haven, CT, USA
| | - Jeffrey P Townsend
- Department of Biostatistics, Yale School of Public Health, New Haven, CT, USA
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19
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Abstract
While significant protection from pneumococcal disease has been achieved by the use of polysaccharide and polysaccharide-protein conjugate vaccines, capsule-independent protection has been limited by serotype replacement along with disease caused by nonencapsulated Streptococcus pneumoniae (NESp). NESp strains compose approximately 3% to 19% of asymptomatic carriage isolates and harbor multiple antibiotic resistance genes. Surface proteins unique to NESp enhance colonization and virulence despite the lack of a capsule even though the capsule has been thought to be required for pneumococcal pathogenesis. Genes for pneumococcal surface proteins replace the capsular polysaccharide (cps) locus in some NESp isolates, and these proteins aid in pneumococcal colonization and otitis media (OM). NESp strains have been isolated from patients with invasive and noninvasive pneumococcal disease, but noninvasive diseases, specifically, conjunctivitis (85%) and OM (8%), are of higher prevalence. Conjunctival strains are commonly of the so-called classical NESp lineages defined by multilocus sequence types (STs) ST344 and ST448, while sporadic NESp lineages such as ST1106 are more commonly isolated from patients with other diseases. Interestingly, sporadic lineages have significantly higher rates of recombination than classical lineages. Higher rates of recombination can lead to increased acquisition of antibiotic resistance and virulence factors, increasing the risk of disease and hindering treatment. NESp strains are a significant proportion of the pneumococcal population, can cause disease, and may be increasing in prevalence in the population due to effects on the pneumococcal niche caused by pneumococcal vaccines. Current vaccines are ineffective against NESp, and further research is necessary to develop vaccines effective against both encapsulated and nonencapsulated pneumococci.
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20
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Patel KR, Phillips DJ, Leibowitz JM, Scognamiglio T, Banuchi VE, Kuhel WI, Kutler DI, Cohen MA. Value within otolaryngology: Assessment of the cost-utility analysis literature. World J Otorhinolaryngol Head Neck Surg 2016; 2:28-37. [PMID: 29204546 PMCID: PMC5698524 DOI: 10.1016/j.wjorl.2016.01.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 12/23/2015] [Accepted: 01/04/2016] [Indexed: 12/28/2022] Open
Abstract
Objective To assess the characteristics and quality of cost utility analyses (CUA) related to otolaryngology within the CEA registry and to summarize their collective results. Methods All cost-utility analyses published between 1976 and 2011 contained in the Cost-Effectiveness Analysis Registry (CEA Registry) were evaluated. Topics that fall within the care of an otolaryngologist were included in the review regardless of the presence of an otolaryngologist author. Potential associations between various study characteristics and CEA registry quality scores were evaluated using the Pearson product moment correlation coefficient. Results Sixty-one of 2913 (2.1%) total CUA publications screened were related to otolaryngology. Eighteen of 61 (29.5%) publications included an otolaryngologist as an author. Fourteen studies agreed on the cost effectiveness of at least unilateral cochlear implantation and six of seven (85.7%) studies demonstrated the cost effectiveness of continuous positive airway pressure (CPAP) for obstructive sleep apnea (OSA). Forty-six percent (28 of 61) of all manuscripts were published between 2008 and 2011. A more recent publication year was associated with a higher CEA registry quality score while the presence of an otolaryngologist author and journal impact factor had no significant correlation with the quality of the CUA. Conclusion Based on current evidence in the CEA registry, unilateral cochlear implantation for hearing loss and CPAP for OSA are both cost-effective therapeutic interventions. Although CUAs in otolaryngology have increased in quantity and improved in quality in more recent years, there is a relative lack of CUAs in otolaryngology in comparison to other subspecialties.
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Affiliation(s)
- Krupa R Patel
- Weill Cornell Medical College, New York, NY 10065, USA
| | - David J Phillips
- Department of Otolaryngology-Head and Neck Surgery, New York Presbyterian Hospital/Weill Cornell Medical Center, New York, NY 10065, USA
| | - Jason M Leibowitz
- Department of Otolaryngology-Head and Neck Surgery, University of Miami, Miami, FL 33136, USA
| | - Theresa Scognamiglio
- Department of Pathology & Laboratory Medicine, New York Presbyterian Hospital/Weill Cornell Medical Center, New York, NY 10065, USA
| | - Victoria E Banuchi
- Department of Otolaryngology-Head and Neck Surgery, New York Presbyterian Hospital/Weill Cornell Medical Center, New York, NY 10065, USA
| | - William I Kuhel
- Department of Otolaryngology-Head and Neck Surgery, New York Presbyterian Hospital/Weill Cornell Medical Center, New York, NY 10065, USA
| | - David I Kutler
- Department of Otolaryngology-Head and Neck Surgery, New York Presbyterian Hospital/Weill Cornell Medical Center, New York, NY 10065, USA
| | - Marc A Cohen
- Department of Otolaryngology-Head and Neck Surgery, New York Presbyterian Hospital/Weill Cornell Medical Center, New York, NY 10065, USA
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21
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Harrison A, Dubois LG, St John-Williams L, Moseley MA, Hardison RL, Heimlich DR, Stoddard A, Kerschner JE, Justice SS, Thompson JW, Mason KM. Comprehensive Proteomic and Metabolomic Signatures of Nontypeable Haemophilus influenzae-Induced Acute Otitis Media Reveal Bacterial Aerobic Respiration in an Immunosuppressed Environment. Mol Cell Proteomics 2015; 15:1117-38. [PMID: 26711468 DOI: 10.1074/mcp.m115.052498] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Indexed: 12/31/2022] Open
Abstract
A thorough understanding of the molecular details of the interactions between bacteria and host are critical to ultimately prevent disease. Recent technological advances allow simultaneous analysis of host and bacterial protein and metabolic profiles from a single small tissue sample to provide insight into pathogenesis. We used the chinchilla model of human otitis media to determine, for the first time, the most expansive delineation of global changes in protein and metabolite profiles during an experimentally induced disease. After 48 h of infection with nontypeable Haemophilus influenzae, middle ear tissue lysates were analyzed by high-resolution quantitative two-dimensional liquid chromatography-tandem mass spectrometry. Dynamic changes in 105 chinchilla proteins and 66 metabolites define the early proteomic and metabolomic signature of otitis media. Our studies indicate that establishment of disease coincides with actin morphogenesis, suppression of inflammatory mediators, and bacterial aerobic respiration. We validated the observed increase in the actin-remodeling complex, Arp2/3, and experimentally showed a role for Arp2/3 in nontypeable Haemophilus influenzae invasion. Direct inhibition of actin branch morphology altered bacterial invasion into host epithelial cells, and is supportive of our efforts to use the information gathered to modify outcomes of disease. The twenty-eight nontypeable Haemophilus influenzae proteins identified participate in carbohydrate and amino acid metabolism, redox homeostasis, and include cell wall-associated metabolic proteins. Quantitative characterization of the molecular signatures of infection will redefine our understanding of host response driven developmental changes during pathogenesis. These data represent the first comprehensive study of host protein and metabolite profiles in vivo in response to infection and show the feasibility of extensive characterization of host protein profiles during disease. Identification of novel protein targets and metabolic biomarkers will advance development of therapeutic and diagnostic options for treatment of disease.
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Affiliation(s)
- Alistair Harrison
- From the ‡The Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio 43205
| | - Laura G Dubois
- ‡‡Duke Proteomics and Metabolomics Core Facility, Duke Center for Genomic and Computational Biology, Duke University, Medical Center, Durham, North Carolina 27710
| | - Lisa St John-Williams
- ‡‡Duke Proteomics and Metabolomics Core Facility, Duke Center for Genomic and Computational Biology, Duke University, Medical Center, Durham, North Carolina 27710
| | - M Arthur Moseley
- ‡‡Duke Proteomics and Metabolomics Core Facility, Duke Center for Genomic and Computational Biology, Duke University, Medical Center, Durham, North Carolina 27710
| | - Rachael L Hardison
- From the ‡The Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio 43205
| | - Derek R Heimlich
- From the ‡The Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio 43205
| | | | - Joseph E Kerschner
- ‖Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee, Wisconsin 53226; **Division of Pediatric Otolaryngology, Children's Hospital of Wisconsin, Milwaukee, Wisconsin 53226
| | - Sheryl S Justice
- From the ‡The Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio 43205; §The Center for Microbial Interface Biology and Department of Pediatrics, The Ohio State University, Columbus, Ohio 43210
| | - J Will Thompson
- ‡‡Duke Proteomics and Metabolomics Core Facility, Duke Center for Genomic and Computational Biology, Duke University, Medical Center, Durham, North Carolina 27710
| | - Kevin M Mason
- From the ‡The Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio 43205; §The Center for Microbial Interface Biology and Department of Pediatrics, The Ohio State University, Columbus, Ohio 43210;
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22
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Roditi RE, Veling M, Shin JJ. Age: An effect modifier of the association between allergic rhinitis and Otitis media with effusion. Laryngoscope 2015; 126:1687-92. [PMID: 26422779 DOI: 10.1002/lary.25682] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 07/31/2015] [Accepted: 08/26/2015] [Indexed: 11/09/2022]
Abstract
OBJECTIVES/HYPOTHESIS 1) To determine whether there is a significant relationship between allergic rhinitis and otitis media with effusion (OME), Eustachian tube dysfunction (ETD), or tympanic membrane retraction (TMR) in children in a nationally representative population; and 2) to determine whether age is an effect modifier of any such association because this hypothesis has yet to be tested. STUDY DESIGN Retrospective analysis of cross-sectional national databases with limited potential for referral bias. SETTING AND SUBJECTS National Ambulatory Medical Care Survey and National Hospital Ambulatory Medical Care Survey, 2005-2010. METHODS Univariate, multivariate, stratified, and subgroup analyses were performed as defined a priori. The primary outcomes were OME, ETD, or TMR; the primary predictor variable was allergic rhinitis, with age evaluated as an effect modifier. RESULTS Data representing 1,491,045,375 pediatric visits were examined and demonstrated that age was an effect modifier of the assessed association. More specifically, in children 6 years of age or older, the presence of allergic rhinitis significantly increased the odds of OME, ETD, or TMR (odds ratio [OR] 4.20; 95% confidence interval [CI] 2.17, 8.09; P < 0.001), whereas in children less than 6 years of age there was no significant association (OR 1.13; 95% CI 0.53, 2.46; P = 0.745). CONCLUSION Age is an effect modifier of the association between allergic rhinitis and OME; a significant relationship is observed in children 6 years of age and older, whereas there is no significant association in younger children. LEVEL OF EVIDENCE 2c. Laryngoscope, 126:1687-1692, 2016.
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Affiliation(s)
| | - Maria Veling
- University of Texas Southwestern Medical Center, Dallas, Texas, U.S.A
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23
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Prince AA, Rosenfeld RM, Shin JJ. Antihistamine Use for Otitis Media with Effusion. Otolaryngol Head Neck Surg 2015; 153:935-42. [DOI: 10.1177/0194599815606709] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 08/27/2015] [Indexed: 01/29/2023]
Abstract
Objectives The otitis media with effusion (OME) clinical practice guideline endorsed by the American Academy of Otolaryngology—Head and Neck Surgery Foundation, the American Academy of Pediatrics, and the American Academy of Family Physicians recommends against using antihistamines. Avoiding antihistamines was previously endorsed as a performance measure by the National Quality Foundation, but data regarding current practice patterns are lacking. Thus, our objectives were to evaluate (1) antihistamine usage in association with OME, (2) whether practice varies according to visit setting, and (3) if usage patterns are such that a future change would be measurable. Study Design Cross-sectional analysis. Setting Ambulatory visits in the United States. Subjects and Methods National Ambulatory Medical Care Surveys and National Hospital Ambulatory Medical Care Surveys, 2005-2010; univariate, multivariate, and stratified analyses of antihistamine usage were performed. Results A total of 133,968 observations representing 1.49 × 109 pediatric visits met inclusion criteria. Antihistamines were used in 9.5% of OME visits, as opposed to 5.5% of visits without OME (univariate odds ratio, 1.83; 95% confidence interval, 1.02-3.29; P = .042). Multivariate analysis confirmed that OME was associated with a significant increase in nonsedating antihistamine usage (odds ratio, 3.53; 95% confidence interval, 1.62-7.71; P = .002), when adjusted for age, sex, race/ethnicity, allergic conditions and nasal inflammatory diagnoses. Conclusions Oral antihistamines are significantly more likely to be administered when OME is diagnosed. Although antihistamine use for OME is proportionally low, the high prevalence of OME creates an opportunity for quality improvement. Future changes in clinician behavior in response to an updated guideline or related performance metric could be monitored.
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Affiliation(s)
- Anthony A. Prince
- Department of Otolaryngology, Harvard Medical School, Boston, Massachusetts, USA
| | - Richard M. Rosenfeld
- Department of Otolaryngology, SUNY Downstate Medical Center, Brooklyn, New York, USA
| | - Jennifer J. Shin
- Department of Otolaryngology, Harvard Medical School, Boston, Massachusetts, USA
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Fortnum H, Leighton P, Smith MD, Brown L, Jones M, Benton C, Marder E, Marshall A, Sutton K. Assessment of the feasibility and clinical value of further research to evaluate the management options for children with Down syndrome and otitis media with effusion: a feasibility study. Health Technol Assess 2015; 18:1-147, v-vi. [PMID: 25270051 DOI: 10.3310/hta18600] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND There is clinical uncertainty of the benefits and costs of different treatment options for children with Down syndrome who have glue ear. This study was designed to assess the extent of this lack of knowledge and determine if pursuing further information would be practical, beneficial and cost-effective. OBJECTIVES To assess the level and practical effect of current uncertainty around treatment options for children with Down syndrome and glue ear. To assess the feasibility of studying the options for management of glue ear in children with Down syndrome via a randomised controlled trial (RCT) or multicentre prospective cohort study by evaluating the willingness of (1) parents to agree to randomisation for their children and (2) clinicians to recruit participants to a definitive study. To undertake value of information analyses to demonstrate the potential economic benefit from undertaking further research. DESIGN A feasibility study exploring the views of parents of children with Down syndrome and professionals who have responsibility for the health and education of children with Down syndrome, on the participation in, and value of, future research into interventions for glue ear. Data were collected from parents via self-completed questionnaires, face-to-face interviews and focus groups and from professionals via online questionnaires and a Delphi review exercise. Development of economic models to represent clinical pathways of care and a RCT informed a value of information (VOI) analysis. SETTING UK (professionals); East Midlands region of the UK (parents). PARTICIPANTS Parents of children aged 1-11 years with Down syndrome (n = 156). Professionals including audiologists, ear, nose and throat surgeons, audiological physicians, speech and language therapists, and teachers of the deaf (n = 128). MAIN OUTCOME MEASURES Quantitative and qualitative data on parental views and experiences of glue ear and its effects; interventions and treatment received; taking part in research and factors that would encourage or discourage participation; and the importance of various outcome domains to them and for their children. For professionals: information on caseloads; approaches to clinical management; opinions on frequency and significance of the consequences of glue ear for this population; importance of different outcome measures; opinions of interventions and their role in future research; views on health research; facilitators and barriers to recruitment, and participation in research involving RCTs. RESULTS The complexity of the experience and individual characteristics of children with Down syndrome poses challenges for the design of any future research but these challenges were not considered by professionals to raise sufficient barriers to prevent it being undertaken. Parents were generally supportive of the need for, and value of, research but identified practical and emotional issues that would need addressing. Glue ear was considered to impact more on speech, language and communication than on hearing. Outcome measures for future research would need to evaluate these elements but measures should be designed specifically for the population. Parents and professionals identified randomisation as a significant barrier to participation. The VOI analyses identified lack of data as problematic but concluded that a future trial involving surgical intervention would be feasible at costs of < £650,000. CONCLUSIONS Future research into the benefits of interventions for glue ear in children with Down syndrome would be feasible and could be cost-effective but should be carefully designed to facilitate and maximise participation from parents and professionals responsible for recruitment. FUNDING The National Institute for Health Research Health Technology Assessment programme.
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Affiliation(s)
- Heather Fortnum
- National Institute for Health Research, Nottingham Hearing Biomedical Research Unit, Nottingham, UK
| | - Paul Leighton
- School of Medicine, University of Nottingham, Nottingham, UK
| | - Murray D Smith
- School of Pharmacy, University of Nottingham, Nottingham, UK
| | - Lisa Brown
- National Institute for Health Research, Nottingham Hearing Biomedical Research Unit, Nottingham, UK
| | - Matthew Jones
- School of Medicine, University of Nottingham, Nottingham, UK
| | - Claire Benton
- Nottingham University Hospitals NHS Trust, Nottingham, UK
| | | | | | - Kate Sutton
- Nottinghamshire Healthcare, County Health Partnerships, Nottingham, UK
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Impact of pneumococcal conjugate vaccine on pediatric tympanostomy tube insertion in partial immunized population. ScientificWorldJournal 2015; 2015:248678. [PMID: 25839052 PMCID: PMC4370197 DOI: 10.1155/2015/248678] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 02/26/2015] [Indexed: 11/25/2022] Open
Abstract
Objective. To investigate the impact of seven-valent pneumococcal conjugate vaccine on tube insertions in a partial immunized pediatric population. Study Design. Retrospective ecological study. Methods. This study used Taiwan National Health Insurance Research Database for the period 2000–2009. Every child under 17 years old who received tubes during this 10-year period was identified and analyzed. The tube insertion rates in different age groups and the risk to receive tubes in different birth cohorts before and after the release of the vaccine in 2005 were compared. Results. The tube insertion rates for children under 17 years of age ranged from 21.6 to 31.9 for 100,000 persons/year. The tube insertion rate of children under 2 years old decreased significantly after 2005 in period effect analysis (β = −0.074, P < 0.05, and the negative β value means a downward trend) and increased in children 2 to 9 years old throughout the study period (positive β values which mean upward trends, P < 0.05). The rate of tube insertion was lower in 2004-2005 and 2006-2007 birth cohorts than that of 2002-2003 birth cohort (RR = 0.90 and 0.21, 95% CI 0.83–0.97 and 0.19–0.23, resp.). Conclusion. The seven-valent pneumococcal conjugate vaccine may reduce the risk of tube insertion for children of later birth cohorts. The vaccine may have the protective effect on tube insertions in a partial immunized pediatric population.
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Bartlett JA, Meyerholz DK, Wohlford-Lenane CL, Naumann PW, Salzman NH, McCray PB. Increased susceptibility to otitis media in a Splunc1-deficient mouse model. Dis Model Mech 2015; 8:501-8. [PMID: 25765466 PMCID: PMC4415896 DOI: 10.1242/dmm.019646] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Accepted: 03/07/2015] [Indexed: 12/15/2022] Open
Abstract
Otitis media (inflammation of the middle ear) is one of the most common diseases of early childhood. Susceptibility to otitis is influenced by a number of factors, including the actions of innate immune molecules secreted by the epithelia lining the nasopharynx, middle ear and Eustachian tube. The SPLUNC1 (short palate, lung, nasal epithelial clone 1) protein is a highly abundant secretory product of the mammalian nasal, oral and respiratory mucosa that is thought to play a multifunctional role in host defense. In this study we investigated Splunc1 expression in the ear of the mouse, and examined whether this protein contributes to overall host defense in the middle ear and/or Eustachian tube. We found that Splunc1 is highly expressed in both the surface epithelium and in submucosal glands in these regions in wild-type mice. In mice lacking Splunc1, we noted histologically an increased frequency of otitis media, characterized by the accumulation of leukocytes (neutrophils with scattered macrophages), proteinaceous fluid and mucus in the middle ear lumens. Furthermore, many of these mice had extensive remodeling of the middle ear wall, suggesting a chronic course of disease. From these observations, we conclude that loss of Splunc1 predisposes mice to the development of otitis media. The Splunc1−/− mouse model should help investigators to better understand both the biological role of Splunc1 as well as host defense mechanisms in the middle ear. Summary: We document expression of the innate immune factor Splunc1 in the murine middle ear and Eustachian tube, and describe spontaneous development of otitis media in mice lacking functional Splunc1.
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Affiliation(s)
- Jennifer A Bartlett
- Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - David K Meyerholz
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | | | - Paul W Naumann
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Nita H Salzman
- Department of Pediatrics, Division of Gastroenterology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Paul B McCray
- Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
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Wu DBC, Chaiyakunapruk N, Chong HY, Beutels P. Choosing between 7-, 10- and 13-valent pneumococcal conjugate vaccines in childhood: a review of economic evaluations (2006-2014). Vaccine 2015; 33:1633-58. [PMID: 25681663 DOI: 10.1016/j.vaccine.2015.01.081] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 01/11/2015] [Accepted: 01/30/2015] [Indexed: 10/24/2022]
Abstract
BACKGROUND Seven-valent pneumococcal conjugate vaccines (PCV7) have been used in children for more than a decade. Given the observed increase in disease caused by pneumococcal serotypes not covered by PCV7, an increasing number of countries are switching from 7-valent to 10- and 13-valent PCVs ("PCV10" and "PCV13"). Economic evaluations are important tools to inform decisions and price negotiations to make such a switch. OBJECTIVE This review aims to provide a critical assessment of economic evaluations involving PCV10 or PCV13, published since 2006. METHODS We searched Scopus, ISI Web of Science (SCI and SSCI) and Pubmed to retrieve, select and review relevant studies, which were archived between 1st January 2006 and 31st January 2014. The review protocol involved standard extraction of assumptions, methods, results and sponsorships from the original studies. RESULTS Sixty-three economic evaluations on PCVs published since January 2006 were identified. About half of these evaluated PCV10 and/or PCV13, the subject of this review. At current prices, both PCV13 and PCV10 were likely judged preferable to PCV7. However, the combined uncertainty related to price differences, burden of disease, vaccine effectiveness, herd and serotype replacement effects determine the preference base for either PCV10 or PCV13. The pivotal assumptions and results of these analyses also depended on which manufacturer sponsored the study. CONCLUSION A more thorough exploration of uncertainty should be made in future analyses on this subject, as we lack understanding to adequately model herd and serotype replacement effects to reliably predict the population impact of PCVs. The introduction of further improved PCVs in an environment of evolving antibiotic resistance and under the continuing influence of previous PCVs implies that the complexity and data requirements for relevant analyses will further increase. Decision makers using these analyses should not just rely on an analysis from a single manufacturer.
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Affiliation(s)
| | - Nathorn Chaiyakunapruk
- School of Pharmacy, Monash University Malaysia, Malaysia; Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok, Thailand; School of Pharmacy, University of Wisconsin, Madison, USA; School of Population Health, University of Queensland, Brisbane, Australia.
| | - Huey-Yi Chong
- School of Pharmacy, Monash University Malaysia, Malaysia.
| | - Philippe Beutels
- Centre for Health Economics Research & Modelling Infectious Diseases, Vaccine & Infectious Disease Institute, WHO Collaborating Centre, Faculty of Medicine & Health Sciences, University of Antwerp, Belgium; School of Public Health and Community Medicine, The University of New South Wales, Sydney, Australia.
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Abstract
We determined the cost of care for 2 diagnosis and management approaches for acute otitis media (AOM) among children 6 to 30 months old. A case-control design was used. Cases included 208 children diagnosed with AOM based on a bulging tympanic membrane (TM) and treated with amoxicillin/clavulanate. Controls (5:1 ratio) included 1020 children with AOM diagnosed not requiring bulging of the TM and treated with amoxicillin. Fewer cases (49%) than controls (69%) were diagnosed with AOM (P < .001), fewer were diagnosed with recurrent AOM or AOM treatment failure (0.34 vs 1.6/child; P < .0001), and fewer had insertion of tympanostomy tubes (6.3% vs 14.8%) due to recurrent AOM (P < .0001). The combined direct payments and indirect costs for management of AOM were $539/case versus $1,023/control. Using Rochester NY payments generalized to the US birth cohort, this case diagnosis and treatment strategy could save $1.008 billion per year.
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Substrate binding protein SBP2 of a putative ABC transporter as a novel vaccine antigen of Moraxella catarrhalis. Infect Immun 2014; 82:3503-12. [PMID: 24914218 DOI: 10.1128/iai.01832-14] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Moraxella catarrhalis is a common respiratory tract pathogen that causes otitis media in children and infections in adults with chronic obstructive pulmonary disease. Since the introduction of the pneumococcal conjugate vaccines with/without protein D of nontypeable Haemophilus influenzae, M. catarrhalis has become a high-priority pathogen in otitis media. For the development of antibacterial vaccines and therapies, substrate binding proteins of ATP-binding cassette transporters are important targets. In this study, we identified and characterized a substrate binding protein, SBP2, of M. catarrhalis. Among 30 clinical isolates tested, the sbp2 gene sequence was highly conserved. In 2 different analyses (whole-cell enzyme-linked immunosorbent assay and flow cytometry), polyclonal antibodies raised to recombinant SBP2 demonstrated that SBP2 expresses epitopes on the bacterial surface of the wild type but not the sbp2 mutant. Mice immunized with recombinant SBP2 showed significantly enhanced clearance of M. catarrhalis from the lung compared to that in the control group at both 25-μg and 50-μg doses (P < 0.001). We conclude that SBP2 is a novel, attractive candidate as a vaccine antigen against M. catarrhalis.
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30
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Fortanier AC, Venekamp RP, Boonacker CWB, Hak E, Schilder AGM, Sanders EAM, Damoiseaux RAMJ. Pneumococcal conjugate vaccines for preventing otitis media. Cochrane Database Syst Rev 2014:CD001480. [PMID: 24696098 DOI: 10.1002/14651858.cd001480.pub4] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Acute otitis media (AOM) is a very common respiratory infection in early infancy and childhood. The marginal benefits of antibiotics for AOM in low-risk populations in general, the increasing problem of bacterial resistance to antibiotics and the huge estimated direct and indirect annual costs associated with otitis media (OM) have prompted a search for effective vaccines to prevent AOM. OBJECTIVES To assess the effect of pneumococcal conjugate vaccines (PCVs) in preventing AOM in children up to 12 years of age. SEARCH METHODS We searched CENTRAL (2013, Issue 11), MEDLINE (1995 to November week 3, 2013), EMBASE (1995 to December 2013), CINAHL (2007 to December 2013), LILACS (2007 to December 2013) and Web of Science (2007 to December 2013). SELECTION CRITERIA Randomised controlled trials (RCTs) of PCVs to prevent AOM in children aged 12 years or younger, with a follow-up of at least six months after vaccination. DATA COLLECTION AND ANALYSIS Two review authors independently assessed trial quality and extracted data. MAIN RESULTS We included 11 publications of nine RCTs (n = 48,426 children, range 74 to 37,868 per study) of 7- to 11-valent PCV (with different carrier proteins). Five trials (n = 47,108) included infants, while four trials (n = 1318) included children aged one to seven years that were either healthy (one study, n = 264) or had a previous history of upper respiratory tract infection (URTI), including AOM. We judged the methodological quality of the included studies to be moderate to high. There was considerable clinical diversity between studies in terms of study population, type of conjugate vaccine and outcome measures. We therefore refrained from pooling the results.In three studies, the 7-valent PCV with CRM197 as carrier protein (CRM197-PCV7) administered during early infancy was associated with a relative risk reduction (RRR) of all-cause AOM ranging from -5% in high-risk children (95% confidence interval (CI) -25% to 12%) to 7% in low-risk children (95% CI 4% to 9%). Another 7-valent PCV with the outer membrane protein complex of Neisseria meningitidis (N. meningitidis) serogroup B as carrier protein, administered in infancy, did not reduce overall AOM episodes, while a precursor 11-valent PCV with Haemophilus influenzae (H. influenzae) protein D as carrier protein was associated with a RRR of all-cause AOM episodes of 34% (95% CI 21% to 44%).A 9-valent PCV (with CRM197 carrier protein) administered in healthy toddlers was associated with a RRR of (parent-reported) OM episodes of 17% (95% CI -2% to 33%). CRM197-PCV7 followed by 23-valent pneumococcal polysaccharide vaccination administered after infancy in older children with a history of AOM showed no beneficial effect on first occurrence and later AOM episodes. In a study in older children with a previously diagnosed respiratory tract infection, performed during the influenza season, a trivalent influenza vaccine combined with placebo (TIV/placebo) led to fewer all-cause AOM episodes than vaccination with TIV and PCV7 (TIV/PCV7) when compared to hepatitis B vaccination and placebo (HBV/placebo) (RRR 71%, 95% CI 30% to 88% versus RRR 57%, 95% CI 6% to 80%, respectively) indicating that CRM197-PCV7 after infancy may even have negative effects on AOM. AUTHORS' CONCLUSIONS Based on current evidence of the effects of PCVs for preventing AOM, the licensed 7-valent CRM197-PCV7 has modest beneficial effects in healthy infants with a low baseline risk of AOM. Administering PCV7 in high-risk infants, after early infancy and in older children with a history of AOM, appears to have no benefit in preventing further episodes. Currently, several RCTs with different (newly licensed, multivalent) PCVs administered during early infancy are ongoing to establish their effects on AOM. Results of these studies may provide a better understanding of the role of the newly licensed, multivalent PCVs in preventing AOM. Also the impact on AOM of the carrier protein D, as used in certain pneumococcal vaccines, needs to be further established.
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Affiliation(s)
- Alexandre C Fortanier
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, HP: Str. 6.131, PO Box 85500, Utrecht, Netherlands, 3508 GA
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De la Hoz-Restrepo F, Castañeda-Orjuela C, Paternina A, Alvis-Guzman N. Systematic review of incremental non-vaccine cost estimates used in cost-effectiveness analysis on the introduction of rotavirus and pneumococcal vaccines. Vaccine 2014; 31 Suppl 3:C80-7. [PMID: 23777697 DOI: 10.1016/j.vaccine.2013.05.064] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Revised: 05/01/2013] [Accepted: 05/15/2013] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To review the approaches used in the cost-effectiveness analysis (CEAs) literature to estimate the cost of expanded program on immunization (EPI) activities, other than vaccine purchase, for rotavirus and pneumococcal vaccines. METHODS A systematic review in PubMed and NHS EED databases of rotavirus and pneumococcal vaccines CEAs was done. Selected articles were read and information on how EPI costs were calculated was extracted. EPI costing approaches were classified according to the method or assumption used for estimation. RESULTS Seventy-nine studies that evaluated cost effectiveness of rotavirus (n=43) or pneumococcal (n=36) vaccines were identified. In general, there are few details on how EPI costs other than vaccine procurement were estimated. While 30 studies used some measurement of that cost, only one study on pneumococcal vaccine used a primary cost evaluation (bottom-up costing analysis) and one study used a costing tool. Twenty-seven studies (17 on rotavirus and 10 on pneumococcal vaccine) assumed the non-vaccine costs. Five studies made no reference to additional costs. Fourteen studies (9 rotavirus and 5 pneumococcal) did not consider any additional EPI cost beyond vaccine procurement. For rotavirus studies, the median for non-vaccine cost per dose was US$0.74 in developing countries and US$6.39 in developed countries. For pneumococcal vaccines, the median for non-vaccine cost per dose was US$1.27 in developing countries and US$8.71 in developed countries. CONCLUSIONS Many pneumococcal (52.8%) and rotavirus (60.4%) cost-effectiveness analyses did not consider additional EPI costs or used poorly supported assumptions. Ignoring EPI costs in addition to those for vaccine procurement in CEA analysis of new vaccines may lead to significant errors in the estimations of ICERs since several factors like personnel, cold chain, or social mobilization can be substantially affected by the introduction of new vaccines.
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Molecular mechanisms of moraxella catarrhalis-induced otitis media. Curr Allergy Asthma Rep 2014; 13:512-7. [PMID: 23934577 DOI: 10.1007/s11882-013-0374-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Moraxella catarrhalis is a Gram-negative bacterium, exclusively present in humans and a leading causative agent of otitis media (OM) in children. Most children (80 %) experience at least one episode of OM by their third birthday and half suffer multiple episodes of infection. Over the last 10 years, increased evidence suggests that M. cat possesses multiple virulence factors which can be carried through biologically active outer membrane vesicles (OMVs) that are themselves able to activate host-immune responses. It has also been noted that multiple toll-like receptors are responsible for M. cat recognition. This review is intended to summarize the key findings and progress in recent years of the molecular mechanisms of M. cat-induced otitis media with particular emphasis on adhesion, invasion, and activation of the host immune system, biofilm formation, and vaccine development.
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Marom T, Tan A, Wilkinson GS, Pierson KS, Freeman JL, Chonmaitree T. Trends in otitis media-related health care use in the United States, 2001-2011. JAMA Pediatr 2014; 168:68-75. [PMID: 24276262 PMCID: PMC3947317 DOI: 10.1001/jamapediatrics.2013.3924] [Citation(s) in RCA: 155] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
IMPORTANCE Otitis media (OM) is a leading cause of pediatric health care visits and the most frequent reason children consume antibiotics or undergo surgery. During recent years, several interventions have been introduced aiming to decrease OM burden. OBJECTIVE To study the trend in OM-related health care use in the United States during the pneumococcal conjugate vaccine (PCV) era (2001-2011). DESIGN, SETTING, AND PARTICIPANTS An analysis of an insurance claims database of a large, nationwide managed health care plan was conducted. Enrolled children aged 6 years or younger with OM visits were identified. MAIN OUTCOMES AND MEASURES Annual OM visit rates, OM-related complications, and surgical interventions were analyzed. RESULTS Overall, 7.82 million unique children (5.51 million child-years) contributed 6.21 million primary OM visits; 52% were boys and 48% were younger than 2 years. There was a downward trend in OM visit rates from 2004 to 2011, with a significant drop that coincided with the advent of the 13-valent vaccine (PCV-13) in 2010. The observed OM visit rates in 2010 (1.00/child-year) and 2011 (0.81/child-year) were lower than the projected rates based on the 2005-2009 trend had there been no intervention (P < .001). Recurrent OM (≥3 OM visits within 6-month look-back) rates decreased at 0.003/child-year (95% CI, 0.002-0.004/child-year) in 2001-2009 and at 0.018/child-year (95% CI, 0.008-0.028/child-year) in 2010-2011. In the PCV-13 premarket years, there was a stable rate ratio (RR) between OM visit rates in children younger than 2 years and in those aged 2 to 6 years (RR, 1.38; 95% CI, 1.38-1.39); the RR decreased significantly (P < .001) during the transition year 2010 (RR 1.32; 95% CI, 1.31-1.33) and the postmarket year 2011 (RR 1.01; 95% CI, 1.00-1.02). Tympanic membrane perforation/otorrhea rates gradually increased (from 3721 per 100,000 OM child-years in 2001 to 4542 per 100,000 OM child-years in 2011; P < .001); the increase was significant only in the older children group. Mastoiditis rates substantially decreased (from 61 per 100,000 child-years in 2008 to 37 per 100,000 child-years in 2011; P < .001). Ventilating tube insertion rate decreased by 19% from 2010 to 2011 (P = .03). CONCLUSIONS AND RELEVANCE There was an overall downward trend in OM-related health care use from 2001 to 2011. The significant reduction in OM visit rates in 2010-2011 in children younger than 2 years coincided with the advent of PCV-13. Although tympanic membrane perforation/otorrhea rates steadily increased during that period, mastoiditis and ventilating tube insertion rates decreased in the last years of the study.
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Affiliation(s)
- Tal Marom
- Department of Pediatrics, University of Texas Medical Branch, Galveston, TX
| | - Alai Tan
- Department of Preventive Medicine and Community Health, University of Texas Medical Branch, Galveston, TX
| | - Gregg S. Wilkinson
- Department of Preventive Medicine and Community Health, University of Texas Medical Branch, Galveston, TX
| | - Karen S. Pierson
- Department of Preventive Medicine and Community Health, University of Texas Medical Branch, Galveston, TX
| | - Jean L. Freeman
- Department of Preventive Medicine and Community Health, University of Texas Medical Branch, Galveston, TX
| | - Tasnee Chonmaitree
- Department of Pediatrics, University of Texas Medical Branch, Galveston, TX,Department of Pathology, University of Texas Medical Branch, Galveston, TX
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Moraxella catarrhalis expresses a cardiolipin synthase that impacts adherence to human epithelial cells. J Bacteriol 2013; 196:107-20. [PMID: 24142255 DOI: 10.1128/jb.00298-13] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The major phospholipid constituents of Moraxella catarrhalis membranes are phosphatidylglycerol, phosphatidylethanolamine, and cardiolipin (CL). However, very little is known regarding the synthesis and function of these phospholipids in M. catarrhalis. In this study, we discovered that M. catarrhalis expresses a cardiolipin synthase (CLS), termed MclS, that is responsible for the synthesis of CL within the bacterium. The nucleotide sequence of mclS is highly conserved among M. catarrhalis isolates and is predicted to encode a protein with significant amino acid similarity to the recently characterized YmdC/ClsC protein of Escherichia coli. Isogenic mclS mutant strains were generated in M. catarrhalis isolates O35E, O12E, and McGHS1 and contained no observable levels of CL. Site-directed mutagenesis of a highly conserved HKD motif of MclS also resulted in a CL-deficient strain. Moraxella catarrhalis, which depends on adherence to epithelial cells for colonization of the human host, displays significantly reduced levels of adherence to HEp-2 and A549 cell lines in the mclS mutant strains compared to wild-type bacteria. The reduction in adherence appears to be attributed to the absence of CL. These findings mark the first instance in which a CLS has been related to a virulence-associated trait.
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Invasive and noninvasive Streptococcus pneumoniae capsule and surface protein diversity following the use of a conjugate vaccine. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2013; 20:1711-8. [PMID: 24006139 DOI: 10.1128/cvi.00381-13] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The 13-valent pneumococcal conjugate vaccine (PCV13) was introduced in the United States in 2010 for the prevention of invasive pneumococcal disease (IPD) and otitis media. While many studies have reported its potential efficacy for IPD, not much is known about the epidemiology of noninvasive disease following its introduction. We characterized the capsular types and surface protein genes of noninvasive pediatric pneumococcal isolates collected between 2002 and 2010 (n = 1,058) at Children's of Alabama following the introduction of PCV7 and tested a subset of noninvasive and previously characterized IPD isolates for the presence of the pspA, pspC, and rrgC genes, which encode protection-eliciting proteins. PCV7 serotypes had dramatically decreased by 2010 (P < 0.0001), and only 50% of all noninvasive infections were caused by the PCV13 capsular serotypes. Serotype 19A accounted for 32% of the noninvasive isolates, followed by serotypes 35B (9%), 19F (7%), and 6C (6%). After 7 years of PCV7 usage, there were no changes in the frequencies of the pspA or pspC genes; 96% of the strains were positive for family 1 or 2 pspA genes, and 81% were also positive for pspC. Unexpectedly, more noninvasive than invasive strains were positive for rrgC (P < 0.0001), and the proportion of rrgC-positive strains in 2008 to 2010 was greater than that in 2002 to 2008 (IPD, P < 0.02; noninvasive, P < 0.001). Serotypes 19F, 19A, and 35B were more frequently rrgC positive (P < 0.005) than other serotypes. A vaccine containing antigens, such as PspA, PspC, and/or RrgC, can provide coverage against most non-PCV13-type pneumococci. Continued surveillance is critical for optimal future vaccine development.
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Hoffman HJ, Daly KA, Bainbridge KE, Casselbrant ML, Homøe P, Kvestad E, Kvaerner KJ, Vernacchio L. Panel 1: Epidemiology, natural history, and risk factors. Otolaryngol Head Neck Surg 2013; 148:E1-E25. [PMID: 23536527 DOI: 10.1177/0194599812460984] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND The First International Symposium on Recent Advances in Otitis Media (OM) with Effusion was held in Columbus, Ohio, in 1975. The symposium has been organized in the United States every 4 years since, followed by a research conference to (a) assess major research accomplishments, (b) identify important research questions and opportunities, (c) develop consensus on definitions and terminology, and (d) establish priorities with short- and long-term research goals. One of the principal areas reviewed quadrennially is Epidemiology, Natural History, and Risk Factors. OBJECTIVE To provide a review of recent literature on the epidemiology, natural history, and risk factors for OM. DATA SOURCES AND REVIEW METHODS A search of OM articles in English published July 2007 to June 2011 was conducted using PubMed and related databases. Those with findings judged of importance for epidemiology, public health, and/or statistical methods were reviewed. RESULTS The literature has continued to expand, increasing understanding of the worldwide burden of OM in childhood, complications from treatment failures, and comorbidities. Novel risk factors, including genetic factors, have been examined for OM susceptibility. Population-based studies in Canada, the United States, and other countries confirmed reductions in OM prevalence. Although most studies concentrated on acute OM (AOM) or OM with effusion (OME), a few examined severe chronic suppurative OM (CSOM), a major public health problem in developing countries and for certain indigenous populations around the world. CONCLUSIONS AND IMPLICATIONS FOR PRACTICE Recent publications have reinforced earlier epidemiological findings, while extending our knowledge in human population groups with high burden of OM.
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Affiliation(s)
- Howard J Hoffman
- Epidemiology and Statistics Program, National Institute on Deafness and Other Communication Disorders (NIDCD), National Institutes of Health, Bethesda, Maryland 20892, USA.
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Ahmed S, Shapiro NL, Bhattacharyya N. Incremental health care utilization and costs for acute otitis media in children. Laryngoscope 2013; 124:301-5. [PMID: 23649905 DOI: 10.1002/lary.24190] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Revised: 03/04/2013] [Accepted: 04/16/2013] [Indexed: 11/07/2022]
Abstract
OBJECTIVES/HYPOTHESIS Determine the incremental health care costs associated with the diagnosis and treatment of acute otitis media (AOM) in children. STUDY DESIGN Cross-sectional analysis of a national health-care cost database. METHODS Pediatric patients (age < 18 years) were examined from the 2009 Medical Expenditure Panel Survey. From the linked medical conditions file, cases with a diagnosis of AOM were extracted, along with comorbid conditions. Ambulatory visit rates, prescription refills, and ambulatory health care costs were then compared between children with and without a diagnosis of AOM, adjusting for age, sex, region, race, ethnicity, insurance coverage, and Charlson comorbidity Index. RESULTS A total of 8.7 ± 0.4 million children were diagnosed with AOM (10.7 ± 0.4% annually, mean age 5.3 years, 51.3% male) among 81.5 ± 2.3 million children sampled (mean age 8.9 years, 51.3% male). Children with AOM manifested an additional +2.0 office visits, +0.2 emergency department visits, and +1.6 prescription fills (all P <0.001) per year versus those without AOM, adjusting for demographics and medical comorbidities. Similarly, AOM was associated with an incremental increase in outpatient health care costs of $314 per child annually (P <0.001) and an increase of $17 in patient medication costs (P <0.001), but was not associated with an increase in total prescription expenses ($13, P = 0.766). CONCLUSIONS The diagnosis of AOM confers a significant incremental health-care utilization burden on both patients and the health care system. With its high prevalence across the United States, pediatric AOM accounts for approximately $2.88 billion in added health care expense annually and is a significant health-care utilization concern.
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Affiliation(s)
- Sameer Ahmed
- UCLA Department of Head and Neck Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California
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Should homeopathy be considered as part of a treatment strategy for otitis media with effusion in children? HOMEOPATHY 2013; 102:145-50. [DOI: 10.1016/j.homp.2013.01.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 01/27/2013] [Accepted: 01/31/2013] [Indexed: 11/21/2022]
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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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To tube or not to tube: indications for myringotomy with tube placement. Curr Opin Otolaryngol Head Neck Surg 2012; 19:363-6. [PMID: 21804383 DOI: 10.1097/moo.0b013e3283499fa8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
PURPOSE OF REVIEW To examine the current indications for myringotomy with tube placement. RECENT FINDINGS In 2004, revised clinical practice guidelines for otitis media with effusion (OME) and acute otitis media (AOM) were published. Because of the rate of spontaneous resolution of otitis in children, these guidelines suggest more 'watchful waiting' in both disease processes. Recent literature has recommended an even longer observation period in children with OME of up to 9-18 months. In adults, indications for myringotomy with tube placement have remained unchanged. We will discuss the changes in indications for myringotomy with tube placement and review the recent literature and trends in this area. SUMMARY In children, indicator guideline changes have been shown to not affect speech, language, and cognitive development, but further study is needed to find the right balance of observation, antibiotics, and myringotomy with tube placement for otitis media. Future vaccines may further decrease the number of children requiring myringotomy with tube placement for otitis media.
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Finnell SME, Carroll AE, Downs SM. Application of classic utilities to published pediatric cost-utility studies. Acad Pediatr 2012; 12:219-28. [PMID: 22075466 DOI: 10.1016/j.acap.2011.09.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Revised: 09/09/2011] [Accepted: 09/17/2011] [Indexed: 10/15/2022]
Abstract
OBJECTIVE Economic analyses, such as cost-utility analyses (CUAs), are dependent on the quality of the data used. Our objective was to test how health utility values (measurements of patient preference) assessed by recommended methods (classic utilities) would impact the conclusions in published pediatric CUAs. METHODS Classic utilities for pediatric health states were obtained by recommended utility assessment methods, time trade-off, and standard gamble in 4016 parent interviews. To test the impact of these utilities on published studies, we obtained a sample of published pediatric CUAs by searching Medline, EMBASE, EconLit, Health Technology Assessment Database, Cochrane Database on Systematic Reviews, Database of Abstracts of Reviews of Effects, and the Cost Effective Analysis (CEA) Registry at Tufts Medical Center, using search terms for cost-utility analysis. Articles were included when results were presented as cost per quality adjusted life-years (QALYs), the interventions were for children <18 years of age and included at least one of the following health states: attention deficit hyperactivity disorder, asthma, gastroenteritis, hearing loss, mental retardation, otitis media, seizure disorder, or vision loss. Studies that did not include these or equivalent health states were excluded. For each CUA, we determined utilities (values for patient preference), the utility assessment method used, and presence of one-way sensitivity analyses (SAs) on utilities. When one-way SAs were conducted, we determined if using our classic utilities would change the result of the CUA. When an SA was not presented, we determined if using our classic utilities would tend to support or not support the published conclusions. RESULTS We evaluated 39 articles. Eighteen articles presented results of one-way SAs on utilities. Seven articles presented SAs over a range that included our classic utilities. In 4 of the 7, using classic utilities would change the conclusion of the study. For the 32 articles where no one-way SA were presented (n = 21), or where the classic utilities fell outside the range tested (n =11), a change to classic utility would tend against the study conclusion in 12 articles (31%). CONCLUSIONS More than a third of published CUA studies could change if pediatric utilities obtained by recommended, classic methods were used. One-way SAs on utilities are often not presented, making comparison between studies challenging.
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Affiliation(s)
- S Maria E Finnell
- Children’s Health Services Research, Department of Pediatrics, Indiana University School of Medicine, HITS Building, Rm 1020N, 410 West 10th St., Indianapolis, IN 46202, USA.
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Underwood M, Bakaletz L. Innate immunity and the role of defensins in otitis media. Curr Allergy Asthma Rep 2012; 11:499-507. [PMID: 21901304 DOI: 10.1007/s11882-011-0223-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Otitis media is the most common pediatric disease in developed countries and a significant cause of morbidity and hearing loss in developing countries. The innate immune system is essential to protecting the middle ear from infection. Defensins, broad-spectrum cationic antimicrobial peptides, have been implicated in prevention of and the early response to acute otitis media; however, the mechanisms by which defensins and other antimicrobial molecules mediate this protection have not been completely elucidated. In both animal otitis media models and human middle ear epithelial cell culture models, β-defensins are highly induced and effectively kill the common pathogens associated with otitis media. We review the importance of innate immunity in protecting the middle ear and recent advances in understanding the roles of defensins and other antimicrobial molecules in the prevention and treatment of otitis media. The extremely high prevalence of otitis media, in spite of sophisticated innate and adaptive immune systems, is a vexing problem for clinicians and scientists. We therefore also review mechanisms by which bacteria evade innate immune defenses.
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Affiliation(s)
- Mark Underwood
- Department of Pediatrics, University of California, Davis School of Medicine, Sacramento, CA 95817, USA.
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Abstract
OBJECTIVE The spectrum of diseases caused by Streptococcus pneumoniae and non-typeable Haemophilus influenzae (NTHi) represents a large burden on healthcare systems around the world. Meningitis, bacteraemia, community-acquired pneumonia (CAP), and acute otitis media (AOM) are vaccine-preventable infectious diseases that can have severe consequences. The health economic model presented here is intended to estimate the clinical and economic impact of vaccinating birth cohorts in Canada and the UK with the 10-valent, pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine (PHiD-CV) compared with the newly licensed 13-valent pneumococcal conjugate vaccine (PCV-13). METHODS The model described herein is a Markov cohort model built to simulate the epidemiological burden of pneumococcal- and NTHi-related diseases within birth cohorts in the UK and Canada. Base-case assumptions include estimates of vaccine efficacy and NTHi infection rates that are based on published literature. RESULTS The model predicts that the two vaccines will provide a broadly similar impact on all-cause invasive disease and CAP under base-case assumptions. However, PHiD-CV is expected to provide a substantially greater reduction in AOM compared with PCV-13, offering additional savings of Canadian $9.0 million and £4.9 million in discounted direct medical costs in Canada and the UK, respectively. LIMITATIONS The main limitations of the study are the difficulties in modelling indirect vaccine effects (herd effect and serotype replacement), the absence of PHiD-CV- and PCV-13-specific efficacy data and a lack of comprehensive NTHi surveillance data. Additional limitations relate to the fact that the transmission dynamics of pneumococcal serotypes have not been modelled, nor has antibiotic resistance been accounted for in this paper. CONCLUSION This cost-effectiveness analysis suggests that, in Canada and the UK, PHiD-CV's potential to protect against NTHi infections could provide a greater impact on overall disease burden than the additional serotypes contained in PCV-13.
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Robberstad B, Frostad CR, Akselsen PE, Kværner KJ, Berstad AK. Economic evaluation of second generation pneumococcal conjugate vaccines in Norway. Vaccine 2011; 29:8564-74. [DOI: 10.1016/j.vaccine.2011.09.025] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2011] [Revised: 08/31/2011] [Accepted: 09/08/2011] [Indexed: 10/17/2022]
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Reply to Strutton et al.: Response to “Outcomes and costs associated with PHiD-CV, a new protein D conjugate pneumococcal vaccine, in four countries”. Vaccine 2011. [DOI: 10.1016/j.vaccine.2011.06.117] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Esposito S, Marchisio P, Tenconi R, Principi N. Antibiotic treatment of acute otitis media in pediatrics. Future Microbiol 2011; 6:485-8. [DOI: 10.2217/fmb.11.28] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Evaluation of: Hoberman A, Paradise JL, Rockette HE et al.: Treatment of acute otitis media in children under 2 years of age. N. Engl. J. Med. 364, 105–115 (2011). A recently published study by Hoberman et al. concluded that 10 days’ treatment with amoxicillin–clavulanate tended to reduce the overall symptom burden, the time to symptom resolution, and the rate of persistent signs of acute infection upon otoscopic examination in children aged 6–23 months with acute otitis media (AOM). This study seems to put an end to the controversy between American and European experts concerning the best approach to the treatment of AOM in younger children. However, although treating all children aged less than 2 years with antimicrobial drugs is the lesser of two evils, it is not an ideal solution. Furthermore, the future more widespread use of some already available vaccines against respiratory pathogens could significantly reduce the total number of new episodes of AOM, thus limiting the risk of therapeutic error.
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Affiliation(s)
| | - Paola Marchisio
- Department of Maternal & Pediatric Sciences, Università degli Studi di Milano, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Rossana Tenconi
- Department of Maternal & Pediatric Sciences, Università degli Studi di Milano, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Nicola Principi
- Department of Maternal & Pediatric Sciences, Università degli Studi di Milano, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
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Boonacker CWB, Broos PH, Sanders EAM, Schilder AGM, Rovers MM. Cost effectiveness of pneumococcal conjugate vaccination against acute otitis media in children: a review. PHARMACOECONOMICS 2011; 29:199-211. [PMID: 21250759 DOI: 10.2165/11584930-000000000-00000] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
While pneumococcal conjugate vaccines have shown to be highly effective against invasive pneumococcal disease, their potential effectiveness against acute otitis media (AOM) might become a major economic driver for implementing these vaccines in national immunization programmes. However, the relationship between the costs and benefits of available vaccines remains a controversial topic. Our objective is to systematically review the literature on the cost effectiveness of pneumococcal conjugate vaccination against AOM in children. We searched PubMed, Cochrane and the Centre for Reviews and Dissemination databases (Database of Abstracts of Reviews of Effects [DARE], NHS Economic Evaluation Database [NHS EED] and Health Technology Assessment database [HTA]) from inception until 18 February 2010. We used the following keywords with their synonyms: 'otitis media', 'children', 'cost-effectiveness', 'costs' and 'vaccine'. Costs per AOM episode averted were calculated based on the information in this literature. A total of 21 studies evaluating the cost effectiveness of pneumococcal conjugate vaccines were included. The quality of the included studies was moderate to good. The cost per AOM episode averted varied from &U20AC;168 to &U20AC;4214, and assumed incidence rates varied from 20,952 to 118,000 per 100,000 children aged 0-10 years. Assumptions regarding direct and indirect costs varied between studies. The assumed vaccine efficacy of the 7-valent pneumococcal CRM197-conjugate vaccine was mainly adopted from two trials, which reported 6-8% efficacy. However, some studies assumed additional effects such as herd immunity or only took into account AOM episodes caused by serotypes included in the vaccine, which resulted in efficacy rates varying from 12% to 57%. Costs per AOM episode averted were inversely related to the assumed incidence rates of AOM and to the estimated costs per AOM episode. The median costs per AOM episode averted tended to be lower in industry-sponsored studies. Key assumptions regarding the incidence and costs of AOM episodes have major implications for the estimated cost effectiveness of pneumococcal conjugate vaccination against AOM. Uniform methods for estimating direct and indirect costs of AOM should be agreed upon to reliably compare the cost effectiveness of available and future pneumococcal vaccines against AOM.
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Affiliation(s)
- Chantal W B Boonacker
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands
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Vergison A, Dagan R, Arguedas A, Bonhoeffer J, Cohen R, DHooge I, Hoberman A, Liese J, Marchisio P, Palmu AA, Ray GT, Sanders EAM, Simões EAF, Uhari M, van Eldere J, Pelton SI. Otitis media and its consequences: beyond the earache. THE LANCET. INFECTIOUS DISEASES 2010; 10:195-203. [DOI: 10.1016/s1473-3099(10)70012-8] [Citation(s) in RCA: 223] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Prymula R, Schuerman L. 10-valent pneumococcal nontypeable Haemophilus influenzae PD conjugate vaccine: Synflorix. Expert Rev Vaccines 2010; 8:1479-500. [PMID: 19863240 DOI: 10.1586/erv.09.113] [Citation(s) in RCA: 117] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The global burden of disease due to Streptococcus pneumoniae remains high. The licensed 7-valent pneumococcal conjugate vaccine (7vCRM, Prevenar/Prevnar) has successfully reduced invasive disease in the USA, but serotype coverage is incomplete and some evidence suggests that serotype replacement has occurred. Recently, a new 10-valent pneumococcal nontypeable Haemophilus influenzae (NTHi) protein D (PD) conjugate vaccine (PHiD-CV, Synflorix) has been licensed in more than 40 countries, including Europe, for the prevention of invasive disease and acute otitis media (AOM) due to pneumococcus in infants and children. PHiD-CV is immunogenic in infants when administered as a three-dose primary vaccination in a range of schedules and has a safety profile comparable to that of 7vCRM. Additional serotypes in PHiD-CV (1, 5 and 7F) increase overall serotype coverage and improve coverage in specific age groups and against specific disease syndromes. The use of the PD carrier, which provided protection against AOM caused by NTHi in a large efficacy trial testing a prototype of the final vaccine formulation, suggests that PHiD-CV will also provide some protection against AOM due to NTHi.
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Affiliation(s)
- Roman Prymula
- Department of Epidemiology, Faculty of Military Health Sciences, University of Defence, Hradec Kralove, Czech Republic.
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Cost-effectiveness of pneumococcal conjugate vaccine: An update after 7 years of use in the United States. Vaccine 2009; 27:6483-94. [DOI: 10.1016/j.vaccine.2009.08.045] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2009] [Revised: 08/07/2009] [Accepted: 08/12/2009] [Indexed: 11/20/2022]
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