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Turyasiima M, Kiconco G, Egesa WI, Twesigemukama S, Nduwimana M. Prevalence and Outpatient Clinical Diagnostic Approaches for Common Acute Respiratory Tract Infections in Children Under Five Years of Age: A Cross-Sectional Study. Pediatric Health Med Ther 2024; 15:49-57. [PMID: 38268971 PMCID: PMC10807262 DOI: 10.2147/phmt.s445908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 01/09/2024] [Indexed: 01/26/2024] Open
Abstract
Background Acute respiratory tract infections are among the leading causes of child morbidity and mortality worldwide. Although the diagnosis of acute respiratory tract infections requires simple outpatient medical techniques and care, it is still misdiagnosed among primary care physicians, leading to delayed treatment and increased mortality. This study described the prevalence of common acute respiratory tract infections and simple techniques that effectively detect and diagnose children presenting with acute respiratory symptoms to primary healthcare physicians in remote settings. Patients and Methods This descriptive cross-sectional study was conducted at the pediatric outpatient clinic of a tertiary hospital in western Uganda in April, May and June 2019. A total of 896 children aged 2-59 months attending the clinic were recruited consecutively into the study and examined for the presence of acute respiratory infection. Participants' sociodemographic and clinical data were collected through history taking and clinical examination using a validated Uganda Ministry of Health Uganda outpatient clinical checklist (FORM 5). The outcome variable was the presence of an acute upper or lower respiratory condition. Data was analyzed using STATA version 13.0 (StataCorp, College Station, USA) and summarized using descriptive statistics. Results The overall period prevalence of acute respiratory tract infections among children aged 2 to 59 months was 36.9% (36,942 per 100,000 population). Upper respiratory tract infections with a prevalence of 24.8% were more common than lower respiratory tract infections. The most frequent upper respiratory tract infection in this setting was common cold (52%), followed by tonsillopharyngitis (10.7%), while pneumonia (26%) was the most frequent lower respiratory tract infection. Conclusion Acute respiratory tract infections contribute to the high burden of disease in pediatric outpatient clinics. Simple, affordable, and approved diagnostic clinical techniques that involve physical examination of the upper and lower respiratory systems can precisely diagnose acute respiratory tract infections in resource-limited settings where there is no access to sophisticated diagnostic equipment.
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Affiliation(s)
- Munanura Turyasiima
- Department of Pediatrics and Child Health, Kampala International University, Kampala, Uganda
- Department of Standards Compliance Accreditation and Patient Protection (SCAPP), Ministry of Health, Kampala, Uganda
| | - Gloria Kiconco
- Department of Pediatrics and Child Health, Kampala International University, Kampala, Uganda
- Department of Pediatrics and Child Health, Fort Portal Regional Referral Hospital, Fort Portal, Uganda
| | - Walufu Ivan Egesa
- Department of Pediatrics, Nile International Hospital, Jinja, Uganda
| | - Sabinah Twesigemukama
- Department of Pediatrics and Child Health, Kampala International University, Kampala, Uganda
| | - Martin Nduwimana
- Department of Pediatrics and Child Health, Kampala International University, Kampala, Uganda
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Milani GP, Rosa C, Tuzger N, Alberti I, Ghizzi C, Zampogna S, Amigoni A, Agostoni C, Peroni D, Marchisio P, Chiappini E. Nationwide survey on the management of pediatric pharyngitis in Italian emergency units. Ital J Pediatr 2023; 49:114. [PMID: 37670391 PMCID: PMC10481466 DOI: 10.1186/s13052-023-01514-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 08/19/2023] [Indexed: 09/07/2023] Open
Abstract
BACKGROUND Acute pharyngitis is a frequent reason for primary care or emergency unit visits in children. Most available data on pharyngitis management come from primary care studies that demonstrate an underuse of microbiological tests, a tendency to over-prescribe antibiotics and a risk of antimicrobial resistance increase. However, a comprehensive understanding of acute pharyngitis management in emergency units is lacking. This study aimed to investigate the frequency of rapid antigen test use to diagnose acute pharyngitis, as well as other diagnostic approaches, the therapeutic attitude, and follow-up of children with this condition in the emergency units. METHODS A multicentric national study was conducted in Italian emergency departments between April and June 2022. RESULTS A total of 107 out of 131 invited units (response rate 82%), participated in the survey. The results showed that half of the units use a scoring system to diagnose pharyngitis, with the McIsaac score being the most commonly used. Most emergency units (56%) were not provided with a rapid antigen diagnostic test by their hospital, but the test was more frequently available in units visiting more than 10,000 children yearly (57% vs 33%, respectively, p = 0.02). Almost half (47%) of the units prescribe antibiotics in children with pharyngitis despite the lack of microbiologically confirmed cases of Group A β-hemolytic streptococcus. Finally, about 25% of units prescribe amoxicillin-clavulanic acid to treat Group A β-hemolytic streptococcus pharyngitis. CONCLUSIONS The study sheds light on the approach to pharyngitis in emergency units, providing valuable information to improve the appropriate management of acute pharyngitis in this setting. The routinary provision of rapid antigen tests in the hospitals could enhance the diagnostic and therapeutic approach to pharyngitis.
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Affiliation(s)
- Gregorio P Milani
- Pediatric Unit, Foundation IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Via Della Commenda 9, 20122, Milan, Italy.
- Department of Clinical Sciences and Community Health, Università Degli Studi Di Milano, Milan, Italy.
| | - Claudio Rosa
- Department of Clinical Sciences and Community Health, Università Degli Studi Di Milano, Milan, Italy
| | - Naz Tuzger
- Pediatric Unit, Foundation IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Via Della Commenda 9, 20122, Milan, Italy
- Department of Clinical Sciences and Community Health, Università Degli Studi Di Milano, Milan, Italy
| | - Ilaria Alberti
- Pediatric Unit, Foundation IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Via Della Commenda 9, 20122, Milan, Italy
| | | | - Stefania Zampogna
- SOC Pediatria, Azienda Sanitaria Provinciale Di Crotone, Crotone, Italy
| | - Angela Amigoni
- Pediatric Intensive Care Unit, University Hospital of Padua, Padua, Italy
| | - Carlo Agostoni
- Pediatric Unit, Foundation IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Via Della Commenda 9, 20122, Milan, Italy
- Department of Clinical Sciences and Community Health, Università Degli Studi Di Milano, Milan, Italy
| | - Diego Peroni
- Department of Clinical and Experimental Medicine, Section of Pediatrics, University of Pisa, Pisa, Italy
| | - Paola Marchisio
- Pediatric Unit, Foundation IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Via Della Commenda 9, 20122, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Elena Chiappini
- Pediatric Infectious Disease Unit, Department of Health Sciences, Meyer Children's University Hospital, University of Florence, Florence, Italy
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Miller KM, Tanz RR, Shulman ST, Carapetis JR, Cherian T, Lamagni T, Bowen AC, Pickering J, Fulurija A, Moore HC, Cannon JW, Barnett TC, Van Beneden CA, Carapetis J, Van Beneden C, Kaslow DC, Cherian T, Lamagni T, Engel M, Cannon J, Moore HC, Bowen A, Seale A, Kang G, Watkins D, Kariuki S. Standardization of Epidemiological Surveillance of Group A Streptococcal Pharyngitis. Open Forum Infect Dis 2022; 9:S5-S14. [PMID: 36128410 PMCID: PMC9474939 DOI: 10.1093/ofid/ofac251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Pharyngitis, more commonly known as sore throat, is caused by viral and/or bacterial infections. Group A Streptococcus (Strep A) is the most common bacterial cause of pharyngitis. Strep A pharyngitis is an acute, self-limiting disease but if undertreated can lead to suppurative complications, nonsuppurative poststreptococcal immune-mediated diseases, and toxigenic presentations. We present a standardized surveillance protocol, including case definitions for pharyngitis and Strep A pharyngitis, as well as case classifications that can be used to differentiate between suspected, probable, and confirmed cases. We discuss the current tests used to detect Strep A among persons with pharyngitis, including throat culture and point-of-care tests. The type of surveillance methodology depends on the resources available and the objectives of surveillance. Active surveillance and laboratory confirmation is the preferred method for case detection. Participant eligibility, the surveillance population and additional considerations for surveillance of pharyngitis are addressed, including baseline sampling, community engagement, frequency of screening and season. Finally, we discuss the core elements of case report forms for pharyngitis and provide guidance for the recording of severity and pain associated with the course of an episode.
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Affiliation(s)
- Kate M Miller
- Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute, University of Western Australia , Perth , Australia
| | - Robert R Tanz
- Northwestern University Feinberg School of Medicine and Ann and Robert H. Lurie Children’s Hospital of Chicago , Chicago, Illinois , USA
| | - Stanford T Shulman
- Northwestern University Feinberg School of Medicine and Ann and Robert H. Lurie Children’s Hospital of Chicago , Chicago, Illinois , USA
| | - Jonathan R Carapetis
- Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute, University of Western Australia , Perth , Australia
- Perth Children’s Hospital , Perth , Australia
| | | | - Theresa Lamagni
- United Kingdom Health Security Agency , London , United Kingdom
| | - Asha C Bowen
- Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute, University of Western Australia , Perth , Australia
- Perth Children’s Hospital , Perth , Australia
| | - Janessa Pickering
- Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute, University of Western Australia , Perth , Australia
| | - Alma Fulurija
- Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute, University of Western Australia , Perth , Australia
| | - Hannah C Moore
- Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute, University of Western Australia , Perth , Australia
| | - Jeffrey W Cannon
- Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute, University of Western Australia , Perth , Australia
- Department of Global Health and Population, Harvard T. H. Chan School of Public Health , Boston, Massachusetts , USA
| | - Timothy C Barnett
- Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute, University of Western Australia , Perth , Australia
| | - Chris A Van Beneden
- CDC Foundation, Centers for Disease Control and Prevention , Atlanta, Georgia , USA
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Heidemeyer K, Bossart S. Oral and genital suction purpura. J Eur Acad Dermatol Venereol 2021; 36:e106-e107. [PMID: 34487607 DOI: 10.1111/jdv.17644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/02/2021] [Indexed: 11/28/2022]
Affiliation(s)
- K Heidemeyer
- Department of Dermatology, Inselspital - Bern University Hospital, University of Bern, Bern, Switzerland
| | - S Bossart
- Department of Dermatology, Inselspital - Bern University Hospital, University of Bern, Bern, Switzerland
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5
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Coutinho G, Duerden M, Sessa A, Caretta‐Barradas S, Altiner A. Worldwide comparison of treatment guidelines for sore throat. Int J Clin Pract 2021; 75:e13879. [PMCID: PMC7883223 DOI: 10.1111/ijcp.13879] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 11/18/2020] [Indexed: 08/17/2023] Open
Abstract
Introduction Sore throat (acute pharyngitis) is globally one of the most frequent reasons for seeking healthcare. Its etiology is mostly viral. In 15%‐30% of cases, group A streptococci (GAS) are detected, which may cause acute rheumatic fever. We have done a worldwide systematic review to compare diagnostic and therapeutic guidelines across countries and regions. Previous reviews of sore throat guidelines were limited to specific regions and/or language; this is the first global review. Materials and Methods Searches were performed in MEDLINE, EMBASE and COCHRANE (key words: sore throat, pharyngitis, tonsillitis or pharyngotonsillitis, and management, guidance, guideline or recommendation) and on the web sites of major health authorities and associated institutions from Africa, Asia, Europe, Middle East, North America, Oceania and South America. Results Thirty‐six guidelines were identified from 26 countries. Most common are recommendations relying on the symptom‐ and age‐based Centor or McIsaac scores. However, antibiotic treatment may be based on other symptomatic criteria; in the most extreme approach just sore throat in children. The recommendation of GAS‐specific diagnostic tests is mainly limited to countries where such tests are readily available, although some countries choose not to use them. Penicillins are consistently recommended as first‐line antibiotics. By contrast, guidance for symptomatic treatment is variable and mostly sparse or missing. African countries without sore throat guidelines and Asian countries bypassing them are afflicted by rising antibiotic resistance. Conclusion The availability of sore throat guidelines varies considerably by region and country. Moreover, important divergence is found among the guidelines regarding diagnostic and treatment criteria. This may be explained by the historical background or adoption of external guidelines, rather than local incidences of GAS infections or acute rheumatic fever. Absence of recommendations on symptomatic treatment in many guidelines is concerning, and raises issues about antimicrobial stewardship, as this should be the mainstay of sore throat management, rather than antibiotics.
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Affiliation(s)
- Graça Coutinho
- Global Medical Affairs Lead Respiratory, Reckitt BenckiserLondonUK
| | - Martin Duerden
- Medical AdviserCentre for Medical EducationCardiff University School of MedicineCardiffUK
| | - Aurelio Sessa
- Italian College of General PractitionersFlorenceItaly
| | | | - Attila Altiner
- Institut für AllgemeinmedizinUniversitätsmedizin RostockRostockGermany
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Bhalla K, Bhardwaj P, Gupta A, Mehra S, Nehra D, Nanda S. Role of epidemiological risk factors in improving the clinical diagnosis of streptococcal sore throat in pediatric clinical practice. J Family Med Prim Care 2019; 8:3130-3135. [PMID: 31742131 PMCID: PMC6857377 DOI: 10.4103/jfmpc.jfmpc_495_19] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 08/22/2019] [Accepted: 09/03/2019] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND AND AIMS Antibiotics are frequently prescribed for sore throat in developing countries, that in turn leads to huge healthcare expenditure and their irrational use may lead to antimicrobial resistance in the community. The aim of this study is to investigate the effect of environmental factors on the frequency of occurrence of group A beta hemolytic streptococcus (GABHS) sore throat and to work out enhancing effect on the sensitivity and specificity and positive predictive value of the signs and symptoms of GABHS sore throat for facilitation of rational antibiotic use. SETTINGS AND DESIGN This was a prospective, cross sectional study conducted over period of one year in Pediatric Outpatient Department (OPD) of a Tertiary care teaching hospital. METHODS All the children between the age of 5 years and 15 years of age presenting in OPD with the signs and symptoms of sore throat were included in the study. STATISTICAL ANALYSIS USED Statistical analysis was carried out by using Statistical Package for Social Sciences software and statistical tests of Pearson's Coefficient, Chi-square Test, Fischer's Test, Likelihood Ratio, Odds Ratio, and ROC Curve were applied. RESULTS Out of 225 children of the study group, 153 (68%) of the children were in the 5-10 years' age group. Positive throat swab culture was found to be positively associated with high grade fever, pain in throat while swallowing, severely enlarged tonsils, tender lymphadenopathy, poor housing condition, fuel used for cooking, and presence of smoker in house. CONCLUSIONS The study stresses on the need of carefully evaluating children presenting with the symptoms of sore throat as majority of the cases may be viral and thus, self-limiting. Poor housing conditions and indoor pollution contribute to the increased prevalence of sore throat.
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Affiliation(s)
- Kapil Bhalla
- Department of Pediatrics, Pt BD Sharma PGIMS, Shimla, Himachal Pradesh, India
| | - Parveen Bhardwaj
- Department of Pediatrics, Indira Gandhi Medical College, Shimla, Himachal Pradesh, India
| | - Ashish Gupta
- House Surgeon, Department of Trauma Centre, Pt BD Sharma PGIMS, Rohtak, Haryana, India
| | - Shuchi Mehra
- Department of Microbiology, Pt BD Sharma PGIMS, Rohtak, Haryana, India
| | - Deepak Nehra
- Department of Pharmacology, Pt BD Sharma PGIMS, Rohtak, Haryana, India
| | - Sanjiv Nanda
- Department of Pediatrics, Pt BD Sharma PGIMS, Shimla, Himachal Pradesh, India
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Kim HN, Kim J, Jang WS, Nam J, Lim CS. Performance evaluation of three rapid antigen tests for the diagnosis of group A Streptococci. BMJ Open 2019; 9:e025438. [PMID: 31383693 PMCID: PMC6687028 DOI: 10.1136/bmjopen-2018-025438] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 07/02/2019] [Accepted: 07/03/2019] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE To compare the diagnostic performance of three rapid antigen detection tests (RADTs) for group A Streptococcus (GAS). DESIGN A hospital-based, cross-sectional, retrospective study. SETTING A comparative study of rapid diagnostic tests for GAS using clinical specimens in a single institute. PARTICIPANTS 225 children in the outpatient clinics ofKorea University Guro Hospitalwith suspicious symptoms were subjected to throat swab sampling. A dual-swab applicator was used. Samples were stored at below -70°C in a 10 mL transport tube containing 1 mL liquid Stuart's transport medium. OUTCOME MEASURES All tests were performed in the laboratory by trained clinical laboratory scientists. Sensitivity, specificity, accuracy and kappa index of three RADTs were compared with the reference PCR test and culture results. RESULTS Of the 225 patients suspected of having GAS, 67 and 90 were positive for GAS in the culture and PCR tests, respectively. Compared with the reference culture, the sensitivity for GAS was 92.5% (CI 83.4 to 97.5), 71.6% (CI 59.3 to 81.9) and 74.63% (CI 62.5 to 84.4) for careUS Strep A Plus, SD Bioline and BD Veritor, respectively, and the specificity was 97.0% (CI 93.1 to 99.0), 94.6% (CI 90.1 to 97.5) and 92.9% (CI 87.8 to 96.2) for careUS Strep A Plus, SD Bioline and BD Veritor, respectively. Compared with the reference GAS real-time PCR, the sensitivity was 73.3% (CI 62.9 to 82.1), 63.3% (CI 52.5 to 73.2) and 67.8% (CI 57.1 to 77.2) for careUS Strep A Plus, SD Bioline and BD Veritor, respectively, and the specificity was 99.3% (CI 95.9 to 99.9), 100.0% (CI 97.3 to 100.0) and 99.3% (CI 95.9 to 99.9) for careUS Strep A Plus, SD Bioline and BD Veritor, respectively. CONCLUSIONS The careUS Strep A Plus is a useful test that showed highly comparable results with those of the culture test and superior performances among the three RADTs. The use of RADTs should be encouraged to provide acceptable and fast results using simple equipment.
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Affiliation(s)
- Ha-Nui Kim
- Laboratory Medicine, College of Medicine, Korea University, Seongbuk-gu, Seoul, Republic of Korea
| | - Jeeyong Kim
- Laboratory Medicine, College of Medicine, Korea University, Seongbuk-gu, Seoul, Republic of Korea
| | - Woong Sik Jang
- Laboratory Medicine, College of Medicine, Korea University, Seongbuk-gu, Seoul, Republic of Korea
| | - Jeonghun Nam
- Laboratory Medicine, College of Medicine, Korea University, Seongbuk-gu, Seoul, Republic of Korea
| | - Chae Seung Lim
- Laboratory Medicine, College of Medicine, Korea University, Seongbuk-gu, Seoul, Republic of Korea
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8
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Ma SH, Choi WH, Park H, Kim S. Evaluation of the SD Bioline Strep A Ultra Test in Relation With Number of Colony Forming Units and Color Intensity. Ann Lab Med 2019; 39:31-35. [PMID: 30215227 PMCID: PMC6143457 DOI: 10.3343/alm.2019.39.1.31] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 06/14/2018] [Accepted: 08/27/2018] [Indexed: 11/19/2022] Open
Affiliation(s)
- Sang Hyuk Ma
- Department of Pediatrics, Changwon Fatima Hospital, Changwon, Korea
| | - Won-Hee Choi
- Department of Nursing Science, Kyungsung University, Busan, Korea
| | - Hyunwoong Park
- Department of Laboratory Medicine, Seoul National University Boramae Medical Center, Seoul, Korea
| | - Sunjoo Kim
- Department of Laboratory Medicine, Gyeongsang National University College of Medicine, Jinju, Korea
- Gyeongsang Institute of Health Sciences, Jinju, Korea
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Practical Guidance for Clinical Microbiology Laboratories: Viruses Causing Acute Respiratory Tract Infections. Clin Microbiol Rev 2018; 32:32/1/e00042-18. [PMID: 30541871 DOI: 10.1128/cmr.00042-18] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Respiratory viral infections are associated with a wide range of acute syndromes and infectious disease processes in children and adults worldwide. Many viruses are implicated in these infections, and these viruses are spread largely via respiratory means between humans but also occasionally from animals to humans. This article is an American Society for Microbiology (ASM)-sponsored Practical Guidance for Clinical Microbiology (PGCM) document identifying best practices for diagnosis and characterization of viruses that cause acute respiratory infections and replaces the most recent prior version of the ASM-sponsored Cumitech 21 document, Laboratory Diagnosis of Viral Respiratory Disease, published in 1986. The scope of the original document was quite broad, with an emphasis on clinical diagnosis of a wide variety of infectious agents and laboratory focus on antigen detection and viral culture. The new PGCM document is designed to be used by laboratorians in a wide variety of diagnostic and public health microbiology/virology laboratory settings worldwide. The article provides guidance to a rapidly changing field of diagnostics and outlines the epidemiology and clinical impact of acute respiratory viral infections, including preferred methods of specimen collection and current methods for diagnosis and characterization of viral pathogens causing acute respiratory tract infections. Compared to the case in 1986, molecular techniques are now the preferred diagnostic approaches for the detection of acute respiratory viruses, and they allow for automation, high-throughput workflows, and near-patient testing. These changes require quality assurance programs to prevent laboratory contamination as well as strong preanalytical screening approaches to utilize laboratory resources appropriately. Appropriate guidance from laboratorians to stakeholders will allow for appropriate specimen collection, as well as correct test ordering that will quickly identify highly transmissible emerging pathogens.
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Espadas-Maciá D, Flor Macián EM, Borrás R, Poujois Gisbert S, Muñoz Bonet JI. Streptococcus pyogenes infection in paediatrics: from pharyngotonsillitis to invasive infections. ANALES DE PEDIATRÍA (ENGLISH EDITION) 2018. [DOI: 10.1016/j.anpede.2017.02.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Kassab A, Dabous O, Morsy M. A novel management of streptococcal pharyngotonsillar infections by laser-activated silver nanoparticles and methylene blue conjugate, in vitro study. Int J Pediatr Otorhinolaryngol 2017; 100:114-118. [PMID: 28802354 DOI: 10.1016/j.ijporl.2017.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 06/11/2017] [Accepted: 06/13/2017] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Species of Streptococcus are classified based on their hemolytic properties into alpha and beta types. And, since antimicrobial drug resistance is an increasingly problematic issue, the efforts to develop modalities that would overcome this obstacle and avoid antibiotic side effects is an ongoing challenge. METHODS AND MATERIALS 20 patients from both sexes were selected. The isolated organisms were identified according to standard laboratory methods. Bacterial Cultures were subjected to the low-level diode laser (660 nm), methylene blue (MB) as a photosensitizing agent and for silver nanoparticles. RESULTS All the experimental groups showed statistically lower values of CFU/ml than the positive control group. CONCLUSION The photoactivated MB, silver nanoparticles conjugate showed the maximum inhibitory effect on Streptococci, which opens a gate to further investigation of such a promising protocol to establish a safe and efficient method of management for resistant cases of streptococcal tonsillar infections.
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Affiliation(s)
- Ahmed Kassab
- Medical Department, National Institute of Laser Enhanced Sciences, Cairo University, Egypt.
| | - Ola Dabous
- Medical Department, National Institute of Laser Enhanced Sciences, Cairo University, Egypt.
| | - Mona Morsy
- Medical Department, National Institute of Laser Enhanced Sciences, Cairo University, Egypt.
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Espadas Maciá D, Flor Macián EM, Borrás R, Poujois Gisbert S, Muñoz Bonet JI. [Streptococcus pyogenes infection in paediatrics: from pharyngotonsillitis to invasive infections]. An Pediatr (Barc) 2017; 88:75-81. [PMID: 28366695 DOI: 10.1016/j.anpedi.2017.02.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 01/31/2017] [Accepted: 02/24/2017] [Indexed: 10/19/2022] Open
Abstract
BACKGROUND Streptococcus pyogenes or Group A Streptococci (GAS) cause many infections in infancy. Changes in its epidemiology have been described in recent years, including an increase in invasive infections (iGAS). METHODS A retrospective-descriptive study was conducted on children less than 15 years old, with GAS infections, in particular iGAS, and their complications from February 2004-April 2014. RESULTS A total of 2,192 positive cultures were obtained of which 92.7% were pharyngeal cultures. Twenty-nine patients were admitted to hospital: 4 with suppurative complications, 7 post-infective, 14 iGAS, and 4 probable iGAS cases. There were no differences in the frequency of GAS isolations/year. Non-invasive isolates were more frequent in winter and spring (P<.001), and 68.3% were in patients younger than 5 years. The incidence of iGAS was 2.1/100,000 children/year. There was no seasonality, and it was more frequent in younger children (P=.039). The most common diagnosis was pneumonia (6/14). Eight patients required intensive care. They were treated empirically with second or third-generation cephalosporin or with intravenous penicillin, and pneumonia required longer treatment times (P=.016). All GAS isolates were sensitive to penicillin, and 10.6% were resistant to erythromycin. The time spent in hospital was longer for iGAS than other cases (P=.028). No patients died. CONCLUSIONS Pharyngotonsillitis caused by GAS is common in childhood, and its incidence is increasing in children younger than 5 years. At the moment, post-infectious complications are rare. Invasive infections are the most severe forms of presentation, and are more common in younger children.
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Affiliation(s)
- David Espadas Maciá
- Unidad de Cuidados Intensivos de Pediatría, Hospital Clínico Universitario de Valencia, Valencia, España
| | - Eva María Flor Macián
- Unidad de Cuidados Intensivos de Pediatría, Hospital Clínico Universitario de Valencia, Valencia, España.
| | - Rafael Borrás
- Departamento de Microbiología, Hospital Clínico Universitario de Valencia, Valencia, España
| | | | - Juan Ignacio Muñoz Bonet
- Unidad de Cuidados Intensivos de Pediatría, Hospital Clínico Universitario de Valencia, Valencia, España
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13
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Cohen JF, Bertille N, Cohen R, Chalumeau M. Rapid antigen detection test for group A streptococcus in children with pharyngitis. Cochrane Database Syst Rev 2016; 7:CD010502. [PMID: 27374000 PMCID: PMC6457926 DOI: 10.1002/14651858.cd010502.pub2] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Group A streptococcus (GAS) accounts for 20% to 40% of cases of pharyngitis in children; the remaining cases are caused by viruses. Compared with throat culture, rapid antigen detection tests (RADTs) offer diagnosis at the point of care (within five to 10 minutes). OBJECTIVES To determine the diagnostic accuracy of RADTs for diagnosing GAS in children with pharyngitis. To assess the relative diagnostic accuracy of the two major types of RADTs (enzyme immunoassays (EIA) and optical immunoassays (OIA)) by indirect and direct comparison. SEARCH METHODS We searched CENTRAL, MEDLINE, EMBASE, Web of Science, CDSR, DARE, MEDION and TRIP (January 1980 to July 2015). We also conducted related citations tracking via PubMed, handsearched reference lists of included studies and relevant review articles, and screened all articles citing included studies via Google Scholar. SELECTION CRITERIA We included studies that compared RADT for GAS pharyngitis with throat culture on a blood agar plate in a microbiology laboratory in children seen in ambulatory care. DATA COLLECTION AND ANALYSIS Two review authors independently screened titles and abstracts for relevance, assessed full texts for inclusion, and carried out data extraction and quality assessment using the QUADAS-2 tool. We used bivariate meta-analysis to estimate summary sensitivity and specificity, and to investigate heterogeneity across studies. We compared the accuracy of EIA and OIA tests using indirect and direct evidence. MAIN RESULTS We included 98 unique studies in the review (116 test evaluations; 101,121 participants). The overall methodological quality of included studies was poor, mainly because many studies were at high risk of bias regarding patient selection and the reference standard used (in 73% and 43% of test evaluations, respectively). In studies in which all participants underwent both RADT and throat culture (105 test evaluations; 58,244 participants; median prevalence of participants with GAS was 29.5%), RADT had a summary sensitivity of 85.6%; 95% confidence interval (CI) 83.3 to 87.6 and a summary specificity of 95.4%; 95% CI 94.5 to 96.2. There was substantial heterogeneity in sensitivity across studies; specificity was more stable. There was no evidence of a trade-off between sensitivity and specificity. Heterogeneity in accuracy was not explained by study-level characteristics such as whether an enrichment broth was used before plating, mean age and clinical severity of participants, and GAS prevalence. The sensitivity of EIA and OIA tests was comparable (summary sensitivity 85.4% versus 86.2%). Sensitivity analyses showed that summary estimates of sensitivity and specificity were stable in low risk of bias studies. AUTHORS' CONCLUSIONS In a population of 1000 children with a GAS prevalence of 30%, 43 patients with GAS will be missed. Whether or not RADT can be used as a stand-alone test to rule out GAS will depend mainly on the epidemiological context. The sensitivity of EIA and OIA tests seems comparable. RADT specificity is sufficiently high to ensure against unnecessary use of antibiotics. Based on these results, we would expect that amongst 100 children with strep throat, 86 would be correctly detected with the rapid test while 14 would be missed and not receive antibiotic treatment.
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Affiliation(s)
- Jérémie F Cohen
- Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS), Inserm UMR1153, Paris Descartes UniversityObstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé)ParisFrance
- Necker Hospital, AP‐HP and Paris Descartes UniversityDepartment of PediatricsParisFrance
| | - Nathalie Bertille
- Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS), Inserm UMR1153, Paris Descartes UniversityObstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé)ParisFrance
| | - Robert Cohen
- Association Clinique et Thérapeutique Infantile du Val‐de‐Marne (ACTIV)27 Rue InkermannSaint‐Maur‐des‐FossésFrance
- Centre Hospitalier Intercommunal de Créteil (CHIC)Department of Microbiology40 avenue de VerdunCréteilFrance94010
| | - Martin Chalumeau
- Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS), Inserm UMR1153, Paris Descartes UniversityObstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé)ParisFrance
- Necker Hospital, AP‐HP and Paris Descartes UniversityDepartment of PediatricsParisFrance
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Systematic review of factors contributing to penicillin treatment failure in Streptococcus pyogenes pharyngitis. Otolaryngol Head Neck Surg 2016; 137:851-857. [DOI: 10.1016/j.otohns.2007.07.033] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2007] [Revised: 07/06/2007] [Accepted: 07/25/2007] [Indexed: 11/21/2022]
Abstract
Objective Review the evidence for various explanations for microbiologic treatment failure following use of penicillin in group A streptococcal (GAS) tonsillopharyngitis. DATA SOURCE Systematic review of the literature based on Medline and EMBASE searches, and review of reference lists of included studies. RESULTS The explanations for penicillin treatment failure in GAS tonsillopharyngitis include 1) carrier state, 2) lack of compliance, 3) recurrent exposure, 4) in vivo copathogenicity of β-lactamase–producing normal pharyngeal flora, 5) in vivo bacterial coaggregation, 6) poor antibiotic penetration to tonsillopharyngeal tissue, 7) in vivo eradication of normal protective flora, 8) early initiation of antibiotic therapy resulting in suppression of an adequate host immune response, 9) intracellular localization of GAS, 10) GAS tolerance to penicillin, 11) contaminated toothbrushes or orthodontic appliances, and 12) transmission from the family pet. There is very little type I or II evidence to support any of the above-cited explanations for treatment failure in GAS tonsillopharyngitis; available studies are mostly observational (in patients) or laboratory-based without clinical confirmation. CONCLUSION Multiple explanations have been offered by investigators to explain penicillin treatment failures in GAS tonsillopharyngitis, but the evidence base to support the proposed explanations is generally weak by current standards. Further research is needed to better understand the mechanism(s) of penicillin treatment failure in GAS tonsillopharyngitis.
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Plainvert C, Duquesne I, Touak G, Dmytruk N, Poyart C. In vitro evaluation and comparison of 5 rapid antigen detection tests for the diagnosis of beta-hemolytic group A streptococcal pharyngitis. Diagn Microbiol Infect Dis 2015; 83:105-11. [PMID: 26159722 DOI: 10.1016/j.diagmicrobio.2015.06.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 06/18/2015] [Accepted: 06/19/2015] [Indexed: 10/23/2022]
Abstract
Streptococcus pyogenes (group A Streptococcus [GAS]) is the leading cause of bacterial pharyngitis. To perform a rapid diagnosis of GAS pharyngitis, rapid antigen detection tests (RADTs) have been developed. In this study, we evaluated and compared the sensitivity and specificity of 5 RADTs (bioNexia Strep A plus™, bioNexia Strep A dipstick™, Clearview Strep A™, QuickVue Strep A plus™, and Streptatest™), using analytical approaches combining dilutions in NaCl 0.9% or in pharyngeal flora. The practicability of each RADT was also determined. Among the 630 RADTs performed in this work, all were specific, as no false positive was found resulting in a specificity of 100%. The 5 RADTs detected GAS at 10(6)CFU/mL in NaCl 0.9% or pooled pharyngeal flora. Regarding the practicability analysis, bioNexia Strep A plus, bioNexia Strep A dipstick and Streptatest RADTs obtained the highest scores for secondary items including kit content and instructions for use information. We concluded that these 5 easy-to-use RADTs are suitable for diagnosis of GAS pharyngitis, as they all detect GAS at a concentration commonly found during pharyngitis.
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Affiliation(s)
- Céline Plainvert
- Assistance Publique Hôpitaux de Paris, Service de Bactériologie, Centre National de Référence des Streptocoques, Groupe Hospitalier Paris Centre Cochin-Hôtel Dieu-Broca, Paris, France; INSERM, U1016, Institut Cochin, Paris, France; CNRS (UMR 8104), Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Paris, France.
| | - Igor Duquesne
- Assistance Publique Hôpitaux de Paris, Service de Bactériologie, Centre National de Référence des Streptocoques, Groupe Hospitalier Paris Centre Cochin-Hôtel Dieu-Broca, Paris, France
| | - Gérald Touak
- Assistance Publique Hôpitaux de Paris, Service de Bactériologie, Centre National de Référence des Streptocoques, Groupe Hospitalier Paris Centre Cochin-Hôtel Dieu-Broca, Paris, France
| | - Nicolas Dmytruk
- Assistance Publique Hôpitaux de Paris, Service de Bactériologie, Centre National de Référence des Streptocoques, Groupe Hospitalier Paris Centre Cochin-Hôtel Dieu-Broca, Paris, France
| | - Claire Poyart
- Assistance Publique Hôpitaux de Paris, Service de Bactériologie, Centre National de Référence des Streptocoques, Groupe Hospitalier Paris Centre Cochin-Hôtel Dieu-Broca, Paris, France; INSERM, U1016, Institut Cochin, Paris, France; CNRS (UMR 8104), Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Paris, France
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Naga O. Ear, Nose, and Throat Disorders. PEDIATRIC BOARD STUDY GUIDE 2015. [PMCID: PMC7114993 DOI: 10.1007/978-3-319-10115-6_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This chapter reviews Otolaryngology conditions most commonly seen by pediatricians. Included are issues involving the ears, nose and nasopharynx, sinuses, throat, mouth and oropharynx, and the neck. The most common surgical Otolaryngological procedures will also be discussed. Many of the disease discussed can be effectively identified, diagnosed, and treated by primary care physicians. However, for certain conditions, prompt identification and timely referral to Otolaryngology are required.
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Affiliation(s)
- Osama Naga
- Department of Pediatrics, Paul L Foster School of Medicine, Texas Tech, University Health Sciences Center, El Paso, Texas USA
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Van Brusselen D, Vlieghe E, Schelstraete P, De Meulder F, Vandeputte C, Garmyn K, Laffut W, Van de Voorde P. Streptococcal pharyngitis in children: to treat or not to treat? Eur J Pediatr 2014; 173:1275-83. [PMID: 25113742 DOI: 10.1007/s00431-014-2395-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Revised: 07/29/2014] [Accepted: 07/31/2014] [Indexed: 10/24/2022]
Abstract
UNLABELLED Controversy remains about the need for antibiotic therapy of group A streptococcal (GAS) pharyngitis in high-resource settings. Guidelines on the management of GAS pharyngitis differ considerably, especially in children. We performed a literature search on the diagnosis and treatment of GAS pharyngitis in children and compared different guidelines with current epidemiology and the available evidence on management. Some European guidelines only recommend antibiotic treatment in certain high-risk patients, while many other, including all American, still advise antimicrobial treatment for all children with GAS pharyngitis, given the severity and re-emerging incidence of complications. Empirical antimicrobial treatment in children with sore throat and a high clinical suspicion of GAS pharyngitis will still result in significant overtreatment of nonstreptococcal pharyngitis. This is costly and leads to emerging antibiotic resistance. Early differential diagnosis between viral and GAS pharyngitis, by means of a 'rapid antigen detection test' (RADT) and/or a throat culture, is therefore needed if 'pro treatment' guidelines are used. CONCLUSION Large scale randomized controlled trials are necessary to assess the value of antibiotics for GAS pharyngitis in high-resource countries, in order to achieve uniform and evidence-based guidelines. The severity and the possibly increasing incidence of complications in school-aged children suggests that testing and treating proven GAS pharyngitis can still be beneficial.
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Affiliation(s)
- Daan Van Brusselen
- Department of Pediatrics, University of Leuven, Herestraat 49, 3000, Leuven, Belgium,
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Thompson A, Reader S, Field E, Shephard A. Open-label taste-testing study to evaluate the acceptability of both strawberry-flavored and orange-flavored amylmetacresol/2,4-dichlorobenzyl alcohol throat lozenges in healthy children. Drugs R D 2014; 13:101-7. [PMID: 23588685 PMCID: PMC3689904 DOI: 10.1007/s40268-013-0012-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Background Acute sore throat (pharyngitis) is one of the most common illnesses for which children are seen by primary care physicians. Most cases are caused by viruses and are benign and self-limiting. Clinically proven, over-the-counter throat lozenges provide rapid and effective relief of acute sore throat symptoms, and are increasingly important in self-management of this condition. Objective The purpose of this study (International Standard Randomized Controlled Trial Number: ISRCTN34958871) was to evaluate the acceptability of two licensed, commercially available sore throat lozenges containing amylmetacresol and 2,4-dichlorobenzyl (AMC/DCBA)—one strawberry flavored and the other orange flavored—in healthy children. Study design This was an open-label, single-dose, crossover, taste-testing study in children recruited via a clinical database and advertisements over a 3.5-week period. Setting Potentially eligible participants were invited to attend the taste-testing session at a clinic. Participants At the screening session, which took place either before or on the day of taste testing, details of relevant medical history, medication, and demographics were recorded. Of the 108 screened subjects, 102 were recruited. These were healthy male and female children aged 6–12 years. Intervention Each child cleansed their palate with water and water biscuits before tasting a strawberry-flavored lozenge (Strepsils® strawberry sugar free, Reckitt Benckiser Healthcare Limited, Nottingham, UK; PL 00063/0395), which was sucked for 1 minute and then expelled. The orange-flavored lozenge (Strepsils® orange with vitamin C, Reckitt Benckiser Healthcare Limited, Nottingham, UK; PL 016242152) was tasted at least 15 minutes later following further cleansing of the palate. The spontaneous reaction of the child on tasting each lozenge was observed and recorded. Subjects were asked to indicate their liking for each lozenge, using a 7-point hedonic facial scale, and were required to answer a series of questions relating to what they liked and disliked about the taste and the feel of the lozenge in the mouth and throat. The primary endpoint was the proportion of subjects with a hedonic facial score of >4. Secondary endpoints included the spontaneous reaction of the child on tasting the lozenge and responses to questions related to taste. Results The taste of the lozenge was scored >4 (i.e. ‘good’, ‘really good’, or ‘super good’) by 85.3 % of subjects for the strawberry flavor and 49.0 % for the orange flavor (p < 0.0001). The mean (standard deviation) score was 5.72 (1) for the strawberry-flavored lozenge and 4.35 (2) for the orange-flavored lozenge. The proportion of subjects willing to take the lozenge again was 94 % for the strawberry flavor and 56 % for the orange flavor. Conclusions Strawberry-flavored AMC/DCBA lozenges were liked by, and acceptable to, the majority of the children. AMC/DCBA orange-flavored lozenges were also liked by, and acceptable to, approximately half the children. Overall, both strawberry and orange would be suitable flavors for lozenges intended for children when they suffer from sore throat.
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Affiliation(s)
- Alex Thompson
- Aspect Clinical, 4a Bye Street, Ledbury, Herefordshire HR8 2AA, UK.
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Urkin J, Allenbogen M, Friger M, Vinker S, Reuveni H, Elahayani A. Acute pharyngitis: low adherence to guidelines highlights need for greater flexibility in managing paediatric cases. Acta Paediatr 2013; 102:1075-80. [PMID: 23879261 DOI: 10.1111/apa.12364] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 05/07/2013] [Accepted: 07/18/2013] [Indexed: 11/30/2022]
Abstract
AIM To describe how physicians manage acute pharyngitis with respect to the clinical guidelines. METHODS The computerized medical records of 105 961 children in one district of a large health maintenance organization were analysed, to identify children aged 0-18 years with a diagnosis of pharyngitis and paying their first visit for pharyngitis. Main outcome variables were whether a throat culture was performed and the time between their medical consultation and purchasing any antibiotics, if at all. RESULTS A total of 28 511 episodes of pharyngitis in 19 865 children aged 0-18, recorded by 125 physicians, were analysed (average of 1.4 episodes per child). Throat cultures were performed in 14 847 episodes (52%), with tests more common among paediatricians and younger physicians. Antibiotics were purchased in 24.8% of these cases, without knowing the result, and were more commonly associated with male physicians, family practitioners, children living in rural areas and drugs bought before the weekend. CONCLUSION About 50% of the physicians did not adhere to the guidelines. Factors influencing adherence included physician training, years in practice and patients' nonmedical characteristics. It is suggested that the existing clinical guidelines should address additional modifiers that will make the more applicable in practice.
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Affiliation(s)
| | - Meirave Allenbogen
- Division of Health Systems; Ben-Gurion University of the Negev; Beer-Sheva; Israel
| | - Michael Friger
- Department of Epidemiology and Health Services Evaluation; Faculty of Health Sciences; Ben-Gurion University of the Negev; Beer-Sheva; Israel
| | | | | | - Asher Elahayani
- Division of Community Health; Faculty of Health Sciences; Ben-Gurion University of the Negev; Beer-Sheva; Israel
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Pharyngitis: Certain clinico-pictorial differentiators. PEDIATRIC INFECTIOUS DISEASE 2013. [PMCID: PMC7154612 DOI: 10.1016/j.pid.2013.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Pharyngitis is an acute inflammatory infection of pharynx and/or tonsils, most cases are caused by viruses and occur as part of common cold syndromes. As there is marked overlap between clinical findings of viral and bacterial pharyngitis and it is difficult to distinguish GABHS from viral causes clinicians tend to prescribe antibiotics for any sore throat and therefore pharyngitis has become the raison d'être for antibiotic misuses. Although clinical findings may not specifically differentiate the various pharyngitis pathogens yet many of these pathogens have clinical markers which could give us some clues to clinical suspicion. A good picture is equal to thousand words, believing in this axiom article presents few simple clinico-pictorial clues which could help suspecting pharyngitis pathogens, this in turn may boost clinical confidence to avoid unnecessary antibiotic prescriptions.
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Mazur E. Management of acute streptococcal pharyngitis: still the subject of controversy. CENTRAL EUROPEAN JOURNAL OF MEDICINE 2013; 8:713-719. [PMID: 32215121 PMCID: PMC7089329 DOI: 10.2478/s11536-013-0216-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/09/2013] [Accepted: 05/03/2013] [Indexed: 11/30/2022]
Abstract
Although most cases of acute pharyngitis are viral in origin, antibiotics are overused in its treatment. Streptococcus pyogenes (group A streptococcus, GAS), the principal bacterial pathogen of acute sore throat, is responsible for merely 5-30% of cases. Moreover, GAS pharyngitis is currently the only commonly occurring form of acute pharyngitis for which antibiotic therapy is definitely indicated. Therefore the differentiation between GAS pharyngitis and that of viral etiology is crucial. Accordingly, scientific societies as well as respected advisory bodies in Europe and North America, issued guidelines for the management of acute pharyngitis with the aim of minimizing unnecessary antibiotic prescriptions in its treatment. The aim of this review work is to confront the state of the art in acute GAS pharyngitis diagnosis and treatment with different approaches to its management represented by current European and North American guidelines. Although based on scientific evidence, international guidelines differ substantially in opinions whether GAS pharyngitis diagnosis should be based on microbiological testing, clinical algorithm or a combination of both. On the other hand, some European guidelines consider GAS pharyngitis to be a mild, self-limiting disease that does not require a specific diagnosis or antimicrobial treatment except in high-risk patients. There is an agreement among guidelines that if antibiotic therapy is indicated, phenoxymethyl penicillin should be the drug of choice to treat GAS pharyngitis.
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Affiliation(s)
- Elżbieta Mazur
- Medical Microbiology Department, Medical University of Lublin, ul. Chodźki 1, 20-093 Lublin, Poland
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Pelucchi C, Grigoryan L, Galeone C, Esposito S, Huovinen P, Little P, Verheij T. Guideline for the management of acute sore throat. Clin Microbiol Infect 2012; 18 Suppl 1:1-28. [PMID: 22432746 DOI: 10.1111/j.1469-0691.2012.03766.x] [Citation(s) in RCA: 178] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The European Society for Clinical Microbiology and Infectious Diseases established the Sore Throat Guideline Group to write an updated guideline to diagnose and treat patients with acute sore throat. In diagnosis, Centor clinical scoring system or rapid antigen test can be helpful in targeting antibiotic use. The Centor scoring system can help to identify those patients who have higher likelihood of group A streptococcal infection. In patients with high likelihood of streptococcal infections (e.g. 3-4 Centor criteria) physicians can consider the use of rapid antigen test (RAT). If RAT is performed, throat culture is not necessary after a negative RAT for the diagnosis of group A streptococci. To treat sore throat, either ibuprofen or paracetamol are recommended for relief of acute sore throat symptoms. Zinc gluconate is not recommended to be used in sore throat. There is inconsistent evidence of herbal treatments and acupuncture as treatments for sore throat. Antibiotics should not be used in patients with less severe presentation of sore throat, e.g. 0-2 Centor criteria to relieve symptoms. Modest benefits of antibiotics, which have been observed in patients with 3-4 Centor criteria, have to be weighed against side effects, the effect of antibiotics on microbiota, increased antibacterial resistance, medicalisation and costs. The prevention of suppurative complications is not a specific indication for antibiotic therapy in sore throat. If antibiotics are indicated, penicillin V, twice or three times daily for 10 days is recommended. At the present, there is no evidence enough that indicates shorter treatment length.
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Cohen JF, Chalumeau M, Levy C, Bidet P, Thollot F, Wollner A, Bingen E, Cohen R. Spectrum and inoculum size effect of a rapid antigen detection test for group A streptococcus in children with pharyngitis. PLoS One 2012; 7:e39085. [PMID: 22768060 PMCID: PMC3387167 DOI: 10.1371/journal.pone.0039085] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Accepted: 05/18/2012] [Indexed: 11/25/2022] Open
Abstract
Background The stability of the accuracy of a diagnostic test is critical to whether clinicians can rely on its result. We aimed to assess whether the performance of a rapid antigen detection test (RADT) for group A streptococcus (GAS) is affected by the clinical spectrum and/or bacterial inoculum size. Methods Throat swabs were collected from 785 children with pharyngitis in an office-based, prospective, multicenter study (2009–2010). We analysed the effect of clinical spectrum (i.e., the McIsaac score and its components) and inoculum size (light or heavy GAS growth) on the accuracy (sensitivity, specificity, likelihood ratios and predictive values) of a RADT, with laboratory throat culture as the reference test. We also evaluated the accuracy of a McIsaac-score–based decision rule. Results GAS prevalence was 36% (95CI: 33%–40%). The inoculum was heavy for 85% of cases (81%–89%). We found a significant spectrum effect on sensitivity, specificity, likelihood ratios and positive predictive value (p<0.05) but not negative predictive value, which was stable at about 92%. RADT sensitivity was greater for children with heavy than light inoculum (95% vs. 40%, p<0.001). After stratification by inoculum size, the spectrum effect on RADT sensitivity was significant only in patients with light inoculum, on univariate and multivariate analysis. The McIsaac-score–based decision rule had 99% (97%–100%) sensitivity and 52% (48%–57%) specificity. Conclusions Variations in RADT sensitivity only occur in patients with light inocula. Because the spectrum effect does not affect the negative predictive value of the test, clinicians who want to rule out GAS can rely on negative RADT results regardless of clinical features if they accept that about 10% of children with negative RADT results will have a positive throat culture. However, such a policy is more acceptable in populations with very low incidence of complications of GAS infection.
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Affiliation(s)
- Jérémie F Cohen
- Unité de Recherche Epidémiologique en Santé Périnatale et Santé des Femmes et des Enfants (U953), Inserm, Paris, France.
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[Use of the rapid antigen technique in the diagnosis of Streptococcus pyogenes pharyngotonsillitis]. An Pediatr (Barc) 2012; 77:193-9. [PMID: 22386535 DOI: 10.1016/j.anpedi.2012.01.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2011] [Revised: 01/10/2012] [Accepted: 01/10/2012] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION Streptococcus pyogenes is the most frequent bacterial cause of acute tonsillopharyngitis. The validity of the rapid antigen test was analysed for its diagnosis in a Paediatric Primary Care setting. The clinical profile with better diagnostic yield was also identified. The unnecessary use of antibiotics was quantified when the rapid antigen test or only the clinical diagnosis was used. The sensitivity of the assay to penicillin, erythromycin and clindamycin was also determined. PATIENTS AND METHODS Cross-sectional study was conducted on children between 2 to 14 years with acute tonsillitis and/or pharyngitis seen in five Primary Care Centres, from January 2008 to May 2010. After a clinical diagnosis, two swabs were taken for pharyngotonsillar smears: the first was used for a rapid antigen test, and the second one for a culture and a study of antibiotic sensitivity, with its analysis being blind to the rapid test result. A total sample of 546 consecutive was envisaged and with consecutive sampling. RESULTS A total 192 patients were included. The prevalence of Streptococcus pyogenes was 38.7% (95% CI: 31.4-45.7). Odynophagia and scarlatiniform rash were most likely with positive cultures, the Streptococcus pyogenes was sensitive to penicillin in 100%, to erythromycin in 97.3% and to clindamycin in 86.3%. The specificity of the rapid antigen test was 91.5% and with a Negative Predictive Value of 91.5%. About half (49.2%) of those who would have receive antibiotics for clinical suspicion would have been treated unnecessarily, with this decreasing to at least in 29.5% when using the rapid antigen test. CONCLUSIONS The rapid antigen test can lead to a better use of antibiotics. Its use in Paediatric Primary Health Care could be useful when, as when the result is negative, there would be no need to confirm by a culture, in those Health Centres with difficult access to laboratory.
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Drago L, De Vecchi E, Torretta S, Mattina R, Marchisio P, Pignataro L. Biofilm formation by bacteria isolated from upper respiratory tract before and after adenotonsillectomy. APMIS 2011; 120:410-6. [PMID: 22515296 DOI: 10.1111/j.1600-0463.2011.02846.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Failure of antibiotics to eradicate the microbial pathogens primarily responsible for otorhinolaryngological diseases has led to the hypothesis that these microorganisms may be structured in a biolfilm. Aim of the study was to evaluate the ability to produce biofilm among bacteria isolated from tonsils and/or adenoids and nasopharynx. Biopsies and swabs were collected during surgery and after 3 and 6 months in 32 children undergoing adenoidectomy and/or tonsillectomy. Production of biofilm by Staphylococcus aureus, Streptococcus pneumoniae, Moraxella catarrhalis and Haemophilus influenzae was evaluated in vitro by means of spectrophotometry after growth in microplates and staining with crystalviolet. Of the isolates from intraoperative samples, 44.7% were either moderate or strong biofilm producers compared with 27% of isolates at 6 months after surgery. A decrease in biofilm production was observed for H. influenzae and S. aureus. In conclusion, the rate of isolation and ability to form biofilm decreased in bacteria isolated subsequent to adenoidectomy and/or tonsillectomy. This suggests a role for biofilm in pathogenesis of recurrent and chronic pharyngeal diseases and rhinopharingitis.
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Affiliation(s)
- Lorenzo Drago
- Laboratory of Clinical Chemistry and Microbiology, IRCCS Galeazzi Institute, Milan, Italy.
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Ciuman RR. Phytotherapeutic and naturopathic adjuvant therapies in otorhinolaryngology. Eur Arch Otorhinolaryngol 2011; 269:389-97. [PMID: 21922427 PMCID: PMC3259400 DOI: 10.1007/s00405-011-1755-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Accepted: 08/23/2011] [Indexed: 11/26/2022]
Abstract
Phytotherapeutic pharmaceuticals and herbal medicinal products with its roots in classical phytotherapeutic medicine have a well-established role in otolaryngological therapy, especially for diseases of the upper airways and acute and chronic infections. A thorough selection and application could mean huge benefit for the patient, in particular in cases with contraindications, chemo- and antibiotic resistance or patient request. Besides, it might spare other medications. Phytotherapeutic pharmaceuticals must fulfil the same criteria of quality, effectiveness and harmlessness of evidence-based medicine like chemical pharmaceuticals, although they are often prescribed due to its well established or traditional based use. This review focuses on phytotherapeutic therapies well established within the European Community for otolaryngologic disease patterns by referring to clinical studies or meta-analysis.
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Affiliation(s)
- Raphael Richard Ciuman
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Bochum, St. Elisabeth-Hospital, Bleichstr. 15, 44787, Bochum, Germany.
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Response to the Letter to the Editor. Clin Ther 2011. [DOI: 10.1016/j.clinthera.2011.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Abstract
Abdominal pain is one of the most common reasons pediatric patients seek emergency care. The emergency physician must be able to distinguish diagnoses requiring immediate attention from self-limiting processes. Pediatric patients can be challenging, particularly those who are preverbal, and therefore, the clinician must rely on a detailed history from a parent or caregiver as well as a careful physical examination in order to narrow the differential diagnosis. This article highlights several pediatric diagnoses presenting as abdominal pain, including surgical emergencies, nonsurgical diagnoses, and extraabdominal processes, and reviews the clinical presentation, diagnostic evaluation, and management of each.
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Affiliation(s)
- Jennifer R Marin
- Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, USA.
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Piacentini GL, Peroni DG, Blasi F, Pescollderungg L, Goller P, Gallmetzer L, Drago L, Bodini A, Boner AL. Atypical bacteria in adenoids and tonsils of children requiring adenotonsillectomy. Acta Otolaryngol 2010; 130:620-5. [PMID: 19958241 DOI: 10.3109/00016480903359921] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONCLUSIONS The results of this study suggest that atypical bacteria may be involved not only in acute upper airway diseases but also in recurrent infections requiring adenoidectomy and/or tonsillectomy. Therefore, their identification, followed by an appropriate treatment, should be considered. OBJECTIVE Although viruses and group A beta-haemolytic streptococci (GABHS) represent the most frequent bacterial aetiological agents of paediatric upper respiratory tract infections (URTIs), chlamydia and Mycoplasma pneumoniae have also been found in acute tonsillopharyngitis. Nevertheless their relevance in chronic or recurrent URTI has never been evaluated. This study aimed to further address the role of atypical bacteria in recurrent URTIs requiring adenoidectomy and tonsillectomy. METHODS Samples from 55 consecutive children who underwent adenoidectomy and/or tonsillectomy for recurrent or chronic URTI were cut transversely into smaller sections of 5 mm. Each section was pooled and assayed by specific PCR for viruses and bacteria. RESULTS Adenovirus was detected in 10 patients (18.2%), influenza A virus in one patient and influenza B virus in another. None of the other tested viruses was found. GABHS was found in 37 patients (67.3%). Moraxella catarrhalis and Haemophilus influenzae were detected in 30 patients (54.5%). M. pneumoniae was detected in 6 patients (10.9%) and C. pneumoniae was found in 10 patients (18.2%).
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Pharmacodynamic analysis and clinical trial of amoxicillin sprinkle administered once daily for 7 days compared to penicillin V potassium administered four times daily for 10 days in the treatment of tonsillopharyngitis due to Streptococcus pyogenes in children. Antimicrob Agents Chemother 2008; 52:2512-20. [PMID: 18332170 DOI: 10.1128/aac.00132-07] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
An a priori pharmacokinetic/pharmacodynamic (PK/PD) target of 40% daily time above the MIC (T >MIC; based on the MIC(90) of 0.06 microg/ml for Streptococcus pyogenes reported in the literature) was shown to be achievable in a phase 1 study of 23 children with a once-daily (QD) modified-release, multiparticulate formulation of amoxicillin (amoxicillin sprinkle). The daily T >MIC achieved with the QD amoxicillin sprinkle formulation was comparable to that achieved with a four-times-daily (QID) penicillin VK suspension. An investigator-blinded, randomized, parallel-group, multicenter study involving 579 children 6 months to 12 years old with acute streptococcal tonsillopharyngitis was then undertaken. Children were randomly assigned 1:1 to receive either the amoxicillin sprinkle (475 mg for ages 6 months to 4 years, 775 mg for ages 5 to 12 years) QD for 7 days or 10 mg/kg of body weight of penicillin VK QID for 10 days (up to the maximum dose of 250 mg QID). Unexpectedly, the rates of bacteriological eradication at the test of cure were 65.3% (132/202) for the amoxicillin sprinkle and 68.0% (132/194) for penicillin VK (95% confidence interval, -12.0% to 6.6%). Thus, neither antibiotic regimen met the minimum criterion of > or =85% eradication ordinarily required by the U.S. FDA for first-line treatment of tonsillopharyngitis due to S. pyogenes. The results of subgroup analyses across demographic characteristics and current infection characteristics and by age/weight categories were consistent with the primary-efficacy result. The clinical cure rates for amoxicillin sprinkle and penicillin VK were 86.1% (216/251) and 91.9% (204/222), respectively (95% confidence interval, -11.6% to -0.4%). The results of a post hoc PD analysis suggested that a requirement for 60% daily T >MIC(90) more accurately predicted the observed high failure rates for bacteriologic eradication with the amoxicillin sprinkle and penicillin VK suspension studied. Based on the association between longer treatment courses and maximal bacterial eradication rates reported in the literature, an alternative composite PK/PD target taking into consideration the duration of therapy, or total T >MIC, was considered and provides an alternative explanation for the observed failure rate of amoxicillin sprinkle.
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DuRussel M, Cattell V. Case 2: Pharyngitis with prolonged fever. Paediatr Child Health 2007; 12:575-8. [DOI: 10.1093/pch/12.7.575a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/11/2007] [Indexed: 11/15/2022] Open
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Mirza A, Wludyka P, Chiu TT, Rathore MH. Throat culture is necessary after negative rapid antigen detection tests. Clin Pediatr (Phila) 2007; 46:241-6. [PMID: 17416880 DOI: 10.1177/0009922806290219] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study was conducted to determine if culture confirmation is needed for a negative rapid antigen detection test. Data on 18,509 tests done in patients younger than 18 years old were reviewed. Of the 14,167 (76.5%) that were negative, 968 (6.8%) were associated with positive cultures. No significant seasonal variation was noted. Significant differences were found between hospital and pediatric practices in the percentage of patients with a negative rapid antigen detection test who actually had group A beta-hemolytic streptococcus (3.5% to 9.8%). This study supports the recommendation of culture confirmation of a negative rapid antigen detection test and validation of results within an individual practice if confirmatory cultures are not being performed. This study showed a high false-negative rate of the negative rapid antigen detection test and variation among hospital and pediatric practices for rates of positive culture after a negative rapid antigen detection test.
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Affiliation(s)
- Ayesha Mirza
- Pediatric Infectious Diseases and Immunology, University of Florida Health Science Center, Jacksonville, Florida, USA
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Casey JR, Pichichero ME. The evidence base for cephalosporin superiority over penicillin in streptococcal pharyngitis. Diagn Microbiol Infect Dis 2007; 57:39S-45S. [PMID: 17292576 DOI: 10.1016/j.diagmicrobio.2006.12.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2006] [Accepted: 12/06/2006] [Indexed: 12/21/2022]
Abstract
Current treatment guidelines from the Infectious Diseases Society of America, the American Heart Association, and the American Academy of Pediatrics recommend only oral penicillin V or intramuscular benzathine penicillin G as the drugs of choice for treatment of group A beta-hemolytic streptococcal (GABHS) pharyngitis. Ten-day treatment courses with 1st-generation oral cephalosporins or erythromycin are recommended as suitable alternatives in patients who are allergic to penicillin. Despite these recommendations, oral cephalosporins are used as drugs of choice for many patients with GABHS pharyngitis. Simpler and/or short-course regimens of cephalosporins that have been approved by the Food and Drug Administration offer alternatives with the potential for unchanged patient compliance. Increasing cephalosporin use in patients with GABHS pharyngitis has followed from numerous reports and metaanalyses of cephalosporin superiority over penicillin for bacteriologic eradication and clinical response. This review examines the evidence supporting the use of cephalosporins as a first choice of treatment for many patients with GABHS pharyngitis.
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Affiliation(s)
- Janet R Casey
- Elmwood Pediatric Group, University of Rochester, Rochester, NY 14642, USA.
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Abstract
Pneumococcal conjugate vaccine use has caused a decrease in the incidence of recurrent and refractory acute otitis media in the United States and a shift in the predominant pathogens. Now Haemophilus influenzae is the most commonly isolated organism (about 60% of the total), and more than half the strains make beta-lactamase, rendering them resistant to amoxicillin. Penicillin nonsusceptible pneumococci, the main target of antibiotic therapy in the 1990s, has become a much less common isolate (10%- 25% of the total). These changes impact antibiotic selection for acute otitis media. Penicillin treatment of group A streptococcal tonsillopharyngitis does not meet the minimum United States Food and Drug Administration standards for first-line treatment, which is 85% or greater eradication at the end of therapy. Recent results with amoxicillin suggest its efficacy is also waning. Cephalosporins have the highest bacteriologic and clinical efficacy. This has implications for optimal antibiotic therapy.
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Affiliation(s)
- Michael E Pichichero
- Department of Microbiology and Immunology, Pediatrics and Medicine, University of Rochester Medical Center, Elmwood Pediatric Group, Rochester, New York 14642, USA
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