2020
DOI: 10.4067/s0716-10182020000200182
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Bacteriemia por Comamonas kerstersii en un joven con apendicitis aguda

Abstract: Comamonas kerstersii es un bacilo gramnegativo no fermentador, asociado a infecciones intraabdominales. Comunicamos un caso clínico de una bacteriemia por C. kerstersii en un joven con una apendicitis aguda. La primera identificación, mediante el sistema Vitek2 compact (BioMerieux) desde los hemocultivos, fue Comamonas testosteroni. Sin embargo, mediante MALDI-TOF se identificó como C. kerstersii. El paciente fue tratado con ampicilina/sulbactam y luego piperacilina/ tazobactam con una evolución favorable. Den… Show more

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Cited by 6 publications
(5 citation statements)
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“…It is difficult to distinguish the members of genus Comamonas though phenotypic tests. The C. kerstersii is easily confused with C. testosteroni by manual or automatic bacterial identification systems currently available, such as Vitek 2 system and API 20NE system ( 4 , 8 ), which may account for the absence of C. kerstersii case before. With the development of MALDI-TOF MS and 16S rRNA sequencing, more and more cases of C. kerstersii infection have been reported in recent years.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…It is difficult to distinguish the members of genus Comamonas though phenotypic tests. The C. kerstersii is easily confused with C. testosteroni by manual or automatic bacterial identification systems currently available, such as Vitek 2 system and API 20NE system ( 4 , 8 ), which may account for the absence of C. kerstersii case before. With the development of MALDI-TOF MS and 16S rRNA sequencing, more and more cases of C. kerstersii infection have been reported in recent years.…”
Section: Discussionmentioning
confidence: 99%
“…infections (5)(6)(7)(8)(9). The majority of reported cases demonstrated the association of acute perforated appendicitis with polymicrobial infections, including C. kerstersii, Escherichia coli, and Streptococcus spp.…”
Section: Introductionmentioning
confidence: 99%
“…In the published literature, we found 25 cases of C. kerstersii infection, among which the main predisposing conditions were appendicitis [ 6 , 7 , 11 , 12 ], peritonitis (often secondary to perforated appendicitis) [ 12 ], and perforated colon [ 6 , 12 ]. The site of infection was most often peritoneal [ 6 , 7 , 9 , 11 , 12 ], with only three reported cases of bacteremia [ 7 , 10 , 13 ] and one each of psoas abscess [ 12 ] and urinary tract infection [ 3 ]. A likely source of peritoneal infection is the translocation of bacteria from the gut following environmental exposure [ 7 ].…”
Section: Discussionmentioning
confidence: 99%
“…Along with C. kerstersii , the gut commensal Bacteroides fragilis was also identified from the patient's blood culture, supporting the theory of gut translocation. In two other reported cases of bacteremia, appendicitis was a predisposing condition, and the source of infection was likely appendicular [ 10 , 13 ]. It has been posited that C. kerstersii may be commensal with bacteria in the appendix and digestive tract [ 10 ].…”
Section: Discussionmentioning
confidence: 99%
“…El género sigue siendo considerado como no patógeno, aunque existe la posibilidad de que actué como un patógeno oportunista raro entre los humanos; en años recientes se han reportados varios casos de infecciones asociadas a bacterias de este género, especialmente en apendicitis, bacteriemia y meningitis ocasionadas por C. aquatica, C. testosteroni y C. kerstersii (Wu et al, 2018). El infradiagnóstico o falta de identificación de la especie C. kerstersii, yace en la falta de información acerca de la misma en las bases de datos sistemas automatizados de uso comercial (como son los sistemas VITEK, Phoenix y API, entre otros) en los cuales constan tan solo el registro de C. acidovarans y C. testosteroni (M. N. Almuzara et al, 2013;Palacio, Cabezas, et al, 2020).…”
Section: Discussionunclassified