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Streptococcus constellatus
A species of gram-positive bacteria in the STREPTOCOCCUS MILLERI GROUP. It is commonly found in the oropharnyx flora and has a proclivity for abscess formation in the upper body and respiratory tract.
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- voir aussi au terme générique : [Descripteurs (mots clés)] Groupe des streptocoques milleri
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Case Report: Vision Loss in a Child Caused by Streptococcus constellatus / Xiaoyan Liu in OVS : Optometry & Vision Science, vol. 100, 10 (Octobre 2023)
[article]
in OVS : Optometry & Vision Science > vol. 100, 10 (Octobre 2023)
Titre : Case Report: Vision Loss in a Child Caused by Streptococcus constellatus Type de document : article de périodique Auteurs : Xiaoyan Liu ; Wenjuan Luo ; Wanna Ren Année de publication : 2023 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]Dépistage visuel
[Thésaurus Mesh]Diagnostic
[Thésaurus Mesh]Enfant
[Thésaurus Mesh]Imagerie par résonance magnétique
[Thésaurus Mesh]Ophtalmologie
[Thésaurus Mesh]Streptococcus constellatus
[Thésaurus Mesh]Tomodensitométrie
[Thésaurus Mesh]Troubles de la vision
[Thésaurus HELB]:Paramédical:Prélèvement d'échantillon sanguinMots-clés : cellulite orbitaire odontogène Résumé : PURPOSE: We present a rare case of Streptococcus constellatus–induced odontogenic orbital cellulitis. METHODS: An 8-year-old boy presented to an outpatient clinic with complaints of right-sided toothache, right eye swelling, and decreased visual acuity. He was referred to a pediatric critical care department for further management. Comprehensive diagnostic assessments, such as ophthalmic examination, blood tests, computed tomography, and MRI, were performed. RESULTS: On presentation, the best-corrected visual acuities were 20/250 and 20/20 in the right and left eyes, respectively. Examination revealed grade 2+ eyelid edema and erythema and grade 4+ chemosis and exophthalmos in the right eye. The patient displayed restricted eye movements in all directions. Blood tests revealed a total white blood cell count of 12,100 cells/μL. Axial and coronal computed tomography revealed right-sided maxillary sinus, ethmoidal sinus, and orbital abscesses. Therefore, the patient was diagnosed with septicemia, orbital cellulitis, and orbital apex syndrome in the right eye. Intravenous antibiotics were administered; paracentesis of the orbital abscess was performed under local anesthesia. However, the patient's condition worsened, resulting in a complete loss of light perception in the right eye. Accordingly, surgery was performed under general anesthesia within 24 hours of admission; the surgery involved drainage of the orbital abscess through an inferior intraorbital incision, as well as drainage of the ethmoid sinus and maxillary sinus abscesses via nasal endoscopy. A culture obtained from the orbital abscess yielded S. constellatus. The infection was managed by a combination of surgical intervention, antibiotics, steroids, and hyperbaric oxygen therapy. However, because of optic nerve injury, vision in the affected eye partially recovered to 20/200. CONCLUSIONS: Streptococcus constellatus–induced pediatric orbital cellulitis can result in significant morbidity. The significant improvement in vision, from no light perception to 20/200, emphasizes the importance of timely diagnosis and treatment in patients who present with acute orbital cellulitis and vision loss symptoms. Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
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