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Unusual presentations of Comamonas kerstersii infection.

ABSTRACT: The association of Comamonas kerstersii with peritonitis resulting from the presence of perforated appendix has previously been described by our research team. In the present study, we describe the isolation of this microorganism from two forms of unusual presentations of C. kerstersii infection not previously described in the literature: localized intra-abdominal infection (psoas abscess) and pelvic peritonitis.

SUBMITTER: Almuzara M

PROVIDER: S-EPMC5537401 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature

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Unusual presentations of Comamonas kerstersii infection.

Almuzara M M Barberis C C Veiga F F Bakai R R Cittadini R R Vera Ocampo C C Alonso Serena M M Cohen E E Ramirez M S MS Famiglietti A A Stecher D D Del Castillo M M Vay C C

New microbes and new infections 20170712

The association of Comamonas kerstersii with peritonitis resulting from the presence of perforated appendix has previously been described by our research team. In the present study, we describe the isolation of this microorganism from two forms of unusual presentations of C. kerstersii infection not previously described in the literature: localized intra-abdominal infection (psoas abscess) and pelvic peritonitis. ...[more]

PMID: 28794884

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Project description:RationaleComamonas kerstersii mainly causes intra-abdominal infections with favorable outcomes due to high antibiotic susceptibility. We report the first case of pneumonia caused by C Kerstersii, which promoted patient death, and a second urinary tract infection by C Kerstersii with extensive drug resistance.Patient concernsA 46-year-old male (Case 1) with craniocerebral injury underwent emergency decompressive craniectomy, but his condition deteriorated further and presented with discontinuous fever, small moist rales on both lungs, and respiratory failure. Retrospective average nucleotide identity (ANI) analysis of the genomic sequence of the sputum isolate identified it as C Kerstersii 12322-1, antimicrobial susceptibility testing (AST) revealed that it was sensitive to 18 of 21 tested antibiotics.An 82-year-old male (Case 2) with hypertrophic prostate experienced gradual obstruction during urination, and a urine test revealed WBC ++. Retrospective ANI analysis of the urine isolate identified it as C Kerstersii 121606, which was resistant to 18 of 21 tested antibiotics.DiagnosesCase 1 was diagnosed empirically as pneumonia caused by C Kerstersii strain 12322-1 secondary to craniocerebral injury and confirmed by retrospective ANI analysis; case 2 was diagnosed empirically as urinary infection secondary to prostate hyperplasia caused by C Kerstersii strain 121606 confirmed by the retrospective ANI analysis.InterventionsCase 1 was administered cefoxitin, cefodizime, imipenem-cilastatin sodium, and underwent comprehensive salvage management. Case 2 was administered doxycycline alone.OutcomesCase 1 died partially because of untimely identification of the responsible bacteria-12322-1. Case 2 was cured even 121606 exhibited an extensive drug resistance feature.LessonsExcept for intra-abdominal infections with good prognosis, we verified that C Kerstersii could also cause extra-abdominal infections, such as the first pneumonia case and urinary infection. It could promote patient death; actual infections were underestimated due to identification difficulties, posing a health threat due to the presence of extensive drug resistance.

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Unusual presentations of Comamonas kerstersii infection.

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Unusual presentations of <i>Comamonas kerstersii</i> infection.

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