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First report of severe acute otitis media caused by Campylobacter rectus and review of the literature.

ABSTRACT: Campylobacter rectus is a member of the human oral flora and is associated with periodontal disease. We report the first case of severe acute otitis media (AOM) due to C. rectus in a previous healthy 15-year-old boy, which was confirmed by 16S ribosomal RNA gene sequencing. C. rectus is a possible causative pathogen of AOM.

SUBMITTER: Kakuta R

PROVIDER: S-EPMC7129946 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature

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First report of severe acute otitis media caused by Campylobacter rectus and review of the literature.

Kakuta Risako R Hidaka Hiroshi H Yano Hisakazu H Okamoto Michiko M Ozawa Daiki D Endo Shiro S Kaku Mitsuo M Katori Yukio Y

Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy 20160628 12

Campylobacter rectus is a member of the human oral flora and is associated with periodontal disease. We report the first case of severe acute otitis media (AOM) due to C. rectus in a previous healthy 15-year-old boy, which was confirmed by 16S ribosomal RNA gene sequencing. C. rectus is a possible causative pathogen of AOM. ...[more]

PMID: 27363873

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Three cases of severe invasive infections caused by Campylobacter rectus and first report of fatal C. rectus infection.

Project description:We report the first fatal case of Campylobacter rectus infection due to a subdural empyema and ruptured mycotic intracranial aneurysm and two cases of limb-threatening C. rectus necrotizing soft tissue and bone infection and empyema thoracis that responded to amoxicillin-clavulanate and surgical debridement and drainage. All three strains were identified by 16S rRNA sequencing.

| S-EPMC3122846 | biostudies-literature

Oral abscess caused by Campylobacter rectus: case report and literature review.

Project description:Campylobacter rectus was isolated under routine anaerobic conditions (no additional hydrogen gas in the atmosphere) from an oral, nonperiodontal abscess from a patient with gastroesophageal adenocarcinoma. We report the first case of a palate abscess caused by C. rectus and review the literature and atmospheric requirements of this organism.

| S-EPMC2650927 | biostudies-literature

Acute Otitis Media Curriculum.

Project description:IntroductionStudies have shown that clinicians do a poor job of diagnosing middle ear infections, and an inaccurate diagnosis may result in inappropriate treatment, such as overuse of antibiotics. Antibiotic overuse is known to lead to increased bacterial resistance and puts patients at risk of deleterious side effects, including allergic reactions, vomiting, diarrhea, and rash. In this curriculum, we teach three important topics for achieving a successful middle ear exam and diagnosis of pathology.MethodsThe topics covered during the session are middle ear examination techniques, diagnosis of middle ear pathology and criteria for diagnosing acute otitis media, and treatment of acute otitis media. Each topic has a 30-minute lesson plan with broad goals, specific and measurable learning objectives, interactive learning activities, and assessment measures. Teaching activities include a mix of knowledge, skill, and attitude activities. Assessment measures aim at the highest level of Miller's pyramid of assessment when possible. Also included is a scholarship map that relates how this learning activity can fit into the assessment of learners at the program level by linking learning objectives with pediatric developmental milestones.ResultsThe interactive nature of these lessons has been very well received by learners, and pediatric residents have had a self-perceived increase in skills.DiscussionThis curriculum provides a standardized approach to teaching the middle ear exam structured by educational rubrics and allows for accurate assessment of learners.

| S-EPMC6440425 | biostudies-literature

Transcriptome profile of peripheral blood mononuclear cells in children with acute otitis media caused by Streptococcus pneumoniae

Project description:Streptococcus pneumoniae (Spn) is the predominant causative organism of acute otitis media (AOM) in children. A human cDNA microarray comprising 30,968 human genome probes was used to evaluate the transcriptional changes that occur in peripheral blood mononuclear cells (PBMC) at the onset of clinical AOM caused by Spn infection in children after comparison of microarray results with the pre-infection healthy stage of the same children.

2010-07-26 | GSE23140 | GEO

Case presentation of <i>Campylobacter rectus</i> leading to pneumonia and literature review.

Project description:Pneumonia caused by Campylobacter rectus is very rare. Herein, we describe the treatment course and experiences of a patient with pneumonia caused by Campylobacter rectus. A 64-year-old woman with intermittent hemoptysis and part lung necrosis indicated by radiography was admitted to our hospital on March 15, 2021. After admission, a CT (Computer tomography)-guided percutaneous lung biopsy was identified as Campylobacter rectus positive by bacterial culture and metagenomic sequencing. The hemoptysis resolved, and the lesions in the right lower lung were gradually absorbed after treatment with anti-Campylobacter rectus drugs. In cases of pneumonia which unresolved by initial therapy and associated with more severe oral hygiene problems, the possibility of infection with oral pathogens (eg, Campylobacter rectus) should be considered. This case suggests that bacterial culture and metagenomic sequencing of the diseased tissue, particularly anaerobic culture, helps to clarify the etiological diagnosis.

| S-EPMC10559745 | biostudies-literature

Prosthetic valve endocarditis caused by <i>Campylobacter fetus</i>: a case report and literature review.

Project description:Campylobacter fetus is a Gram-negative bacillus typically associated with bacteremia in immunocompromised patients. Prosthetic valve endocarditis (PVE) is a serious complication of prosthetic valve surgery, with a high mortality rate if not treated promptly. We present a rare case of PVE caused by C. fetus. A man in his mid-60s presented to the Emergency Department with a fever and showed elevated C-reactive protein concentrations. He had prosthetic mitral and aortic valve replacement surgery 15 years previously. Gram-negative rods were detected in a blood culture. These rods were identified as C. fetus using matrix-assisted laser desorption ionization time-of-flight mass spectrometry and confirmed by 16S rRNA sequencing. The patient was treated with gentamicin and imipenem, and underwent valve replacement surgery. C. fetus was isolated in a left atrial appendage swab obtained during the surgery. Follow-up blood cultures were negative after treatment. However, after a cardiac arrest event, the patient's general condition deteriorated, and he died. To the best of our knowledge, this is the first case of PVE caused by C. fetus in Korea and the second fatality to date. This case highlights the importance of considering C. fetus as a potential cause of PVE, even in patients without known risk factors.

| S-EPMC10664450 | biostudies-literature

Microbial profiling does not differentiate between childhood recurrent acute otitis media and chronic otitis media with effusion.

Project description:ObjectivesOtitis media (OM) is one of the most frequent diseases of childhood, with a minority of children suffering from recurrent acute otitis media (rAOM) or chronic otitis media with effusion (COME), both of which are associated with significant morbidity. We investigated whether the microbiological profiling could be used to differentiate between these two conditions.MethodsChildren up to five years of age, with rAOM (n = 45) or COME (n = 129) and scheduled for tympanostomy tube insertion were enrolled in a prospective study between 2008 and 2009. Middle ear fluids (n = 119) and nasopharyngeal samples (n = 173) were collected during surgery for bacterial culture and PCR analysis to identify Streptococcus pneumoniae, Haemophilus influenzae and Moraxella catarrhalis, and to detect 15 distinct respiratory viruses.ResultsThe occurrence of bacterial and viral pathogens in middle ear fluids did not significantly differ between patients suffering from rAOM and COME. In both patient cohorts, H. influenzae and rhinovirus were the predominant pathogens in the middle ear and nasopharynx. Nasopharyngeal carriage with two or three bacterial pathogens was associated with the presence of bacteria in middle ear fluid (P = 0.04). The great majority of the bacteria isolated from middle ear fluid were genetically identical to nasopharyngeal isolates from the same patient.ConclusionsBased on these results, we propose that the common perception that rAOM is associated with recurrent episodes of microbiologically mediated AOM, whereas COME is generally a sterile inflammation, should be reconsidered.

| S-EPMC7132406 | biostudies-literature

Campylobacter rectus

Project description:Campylobacter rectus overview

| PRJNA37545 | ENA

Transcriptome profile of peripheral blood mononuclear cells in children with acute otitis media caused by Nontypeable Haemophilus influenzae

Project description:Nontypeable Haemophilus influenzae (NTHi) is a common causative organism of acute otitis media (AOM) in children. A human cDNA microarray comprising 30,968 human genome probes was used to evaluate the transcriptional changes that occur in peripheral blood mononuclear cells (PBMC) at the onset of clinical AOM caused by NTHi infection in children after comparison of microarray results with the pre-infection healthy stage of the same children.

2012-03-15 | GSE27990 | GEO

Nasopharyngeal microbiota in infants with acute otitis media.

Project description:BACKGROUND:Interspecies interactions of the nasopharyngeal microbiota are likely to be involved in the pathogenesis of acute otitis media (AOM). Capturing the breadth of microbial interactions requires a detailed description of the microbiota during health and AOM. METHODS:The nasopharyngeal microbiota of 163 infants with (n = 153) or without (n = 10) AOM was characterized using nasopharyngeal swabs and multiplexed pyrosequencing of 16S rRNA. Nasopharyngeal swab specimens were collected during 4 winter seasons from 2004 through 2010 for infants with AOM and during 2010 for controls. RESULTS:Fifty-eight bacterial families were identified, of which Moraxellaceae, Streptococcaceae, and Pasteurellaceae were the most frequent. Commensal families were less prevalent in infants with AOM than in controls. In infants with AOM, prior exposure to antimicrobials and administration of the heptavalent conjugated pneumococcal polysaccharide vaccine (PCV7) were also associated with reduced prevalence of distinct commensal families (Streptococcaceae and Corynebacteriaceae). In addition, antimicrobial exposure increased the prevalence of Enterobacteriaceae and the abundance of Pasteurellaceae. Other factors, such as age, sex, day care, and a history of recurrent AOM, did not influence the microbiota. CONCLUSIONS:Infants' nasopharyngeal microbiota undergoes significant changes during AOM and after exposure to antimicrobials and PCV7, which is mainly attributable to reduced prevalence of commensal bacterial families.

| S-EPMC7107284 | biostudies-literature

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