First report of the aac(6)-Ib-cr gene in Providencia stuartii isolates in Brazil

Abstract INTRODUCTION: The aac(6')-Ib-cr and bla KPC genes are spreading among Enterobacteriaceae species, including Providencia stuartii, in some countries of world. METHODS: These genes were investigated in 28 P. stuartii isolates from a public hospital in Recife, Pernambuco, Brazil, by PCR and sequencing. RESULTS: The aac(6')-Ib-cr gene was detected in 16 resistant isolates, and the bla KPC gene was seen in 14. CONCLUSIONS: The presence of these genes in P. stuartii multi- and extensively drug-resistant isolates indicates that the resistance arsenal of this species is increasing, thus limiting the therapeutic options.

Purple urine bag syndrome: an unusual clinical presentation

Purple Urine Bag Syndrome (PUBS) is a rare presentation of urinary tract infection caused by certain bacteria that produce sulphatases and phosphatases that bring about metabolism of tryptophan, leading to production of pigments indigo and indirubin that together impart purple colour of urine. It is a benign condition, most often associated with long term urinary catheterization, renal diseases, chronic constipation and female gender. Commonly implicated organisms include Proteus mirabilis, Klebsiella pneumoniae, Providencia stuartii. Diagnosis is made on urinary culture. Treatment includes reassurance and antibiotics for UTI. We present a case of purple urinary bag syndrome in a female patient of carcinoma stomach presenting with gastric outlet obstruction.

Drug resistance and distribution of clinical Providencia stuartii isolates / 中国基层医药

Objective To study the distribution and drug resistance of clinical Providencia stuartii isolates and provide the basis data for clinical therapy.Methods A data analysis for the specimen source,the distribution of departments with infection and the antibiotic susceptibility results to 76 isolates was conducted in retrospectively. Results Among 76 strains were mainly from sputum (71.1%),wound secretions (10.5%) and blood (6.6%);the proportion of these strains from ICU was 40.8%,from respiratory department was 9.2%and from general surgery was 7.9%;The bacteria's drug resistance was more serious,multi drug resistant (MDR) strains accounted for 65.8%,pan drug resistant ( PDR) strains accounted for 26.3%,the mortality of patients with PDR strains infection was 45.0%,which was higher than 5.8%of no PDR strains infection.A low resistance rate of antibiotics were imipenem,fluoro-quinolones andamikacin,et al,and the rate of imipenem resistant was lowest(31.5%).Conclusion The multidrug resistance phenomenon of Providencia stuartii is serious, the first choice for the treatment is imipenem, the second choice was fluoroquinolones or amino glycopeptides antibiotics,the hospital infection caused by the bacterium infection in monitoring should be strengthened.

First detection of TEM-116 extended-spectrum β-lactamase in a Providencia stuartii isolate from a Tunisian hospital.

Purpose: To study the resistance to third-generation cephalosporins in Providencia stuartii strain isolated from hospitalized patient in Tunisia and to identify the responsible genes Materials and Methods: This strain was analysed by PCR and sequencing to identify the genes responsible for the β-lactamase resistance phenotypes. The transferability of the phenotypes was tested by conjugation to Escherichia coli J53. The isoelectric point was determinate by isoelectrofocalisation. Results: This resistance was carried by a 60 kb plasmid that encoded a β-lactamase with a pI of 5.4. This β-lactamase revealed identity with the blaTEM-1 gene encoding the TEM-1 β-lactamase, except for a replacement of the Val residue at position 84 by Ile, and the Ala residue at position 184 by Val. These two mutations were encountered in TEM-116 β-lactamase. Conclusion: This study demonstrates the first description of TEM-116 in the P. stuartii species in the world and the first one in a Tunisian hospital.

A Case of Acute Otitis Media Caused by Providencia stuartii / 대한임상병리학회지

Providencia stuartii is occasionally isolated from patients with chronic otitis media, however it has not been reported as a cause of acute otitis media so far. We recently isolated P. stuartii from the pus specimen of right middle ear of a 2-year-old patient with acute otitis media. The patient was admitted because of right-sided otorrhea for 2 weeks. The symptom was not relieved by first-line empirical antibiotics (amoxicillin-clavulanic acid and netilmicin), but it was subsided dramatically with the changed antibiotics (ceftriaxone and amikacin); the isolate was susceptible to these two antibiotics in in vitro susceptibility testing. To our knowledge, this is the first case report of acute otitis media caused by P. stuartii.