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Rev. argent. microbiol ; 49(1): 32-38, mar. 2017. ilus
Article in Spanish | LILACS | ID: biblio-843181

ABSTRACT

Pseudomonas stutzeri se encuentra ampliamente distribuido en el medio ambiente, ocupando diversos nichos ecológicos; pero su aparición en procesos infecciosos de interés clínico es el de patógeno oportunista. El aislamiento de P. stutzeri en un quiste inflamatorio odontogénico es un verdadero hallazgo microbiológico que no presenta antecedentes en la bibliografía científica odontológica. En este caso particular, el aislamiento se obtuvo a partir de material quirúrgico proveniente de un quiste odontogénico inflamatorio ubicado en la pieza dentaria 1.2 con necrosis pulpar concomitante. Se emplearon técnicas diagnósticas complementarias como radiografías, tomografías, estudios anatomopatológicos y microbiológicos. Los resultados permitieron clasificar el proceso como quiste inflamatorio infectado con P. stutzeri. La tipificación y la caracterización del perfil de sensibilidad de la cepa aislada permitieron adecuar la terapéutica antibiótica de manera específica. El análisis microbiológico permitió establecer la etiología del proceso infeccioso, la adecuación del tratamiento y el restablecimiento de los tejidos comprometidos.


Pseudomonas stutzeri is distributed widely in the environment, and occupies different ecological niches. However, it is found in clinically relevant infections as an opportunistic pathogen. Isolation of P. stutzeri from an odontogenic inflammatory cyst is an uncommon microbiological finding that has not been reported to date. In the case presented here, the bacterium was isolated from surgical material obtained from excision of an inflammatory odontogenic cyst located in the tooth 1.2, and presenting with concomitant pulp necrosis. Complementary techniques such as radiographs, CAT scans, and histopathological and microbiological studies were used to establish definitive diagnosis. The obtained results allowed classifying the process as an inflammatory cyst infected by P. stutzeri. Biotyping and characterization of the susceptibility profile of the isolated strain allowed adjusting the antibiotic therapy more specifically. The microbiological studies allowed establishing the etiology of the infectious process, adjusting the treatment plan, and re-establishing tissue integrity.


Subject(s)
Humans , Female , Adult , Opportunistic Infections/therapy , Odontogenic Cysts/surgery , Odontogenic Cysts/diagnosis , Odontogenic Cysts/microbiology , Pseudomonas stutzeri/isolation & purification , Microbiological Techniques/methods , Dental Pulp Necrosis/complications , Pseudomonas stutzeri/pathogenicity
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