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Infections with Pseudomonas aeruginosa in patients admitted to the “Victor Babeş” Clinical Hospital of Infectious Diseases and Pneumology, Craiova


Pseudomonas aeruginosa has a high resistance to external environmental conditions, with a remarkable ability to adapt and numerous virulence factors, being involved in the etiology of nosocomial infections and severe infections in immunodeficient patients. The strains isolated in hospitals need supervision due to the risk of transmission and antibiotic resistance.

We pursued the epidemiological context to elaborate therapeutic recommendations on first-line antibioterapy adapted to the evolution of antibiotic resistance of Pseudomonas strains isolated from pathological products collected from hospitalized patients in non-ICU departments of the hospital.


The retrospective study included 192 patients diagnosed with infections caused by P aeruginosa hospitalized in the “Victor Babeş” Hospital Craiova in the period 01 January 2006 – 31 December 2012. We evaluated the studied cases based on the following parameters: the risk of infection with antibiotic-resistant germs (Carmeli score), infection localization and antibiotic resistance profile of the isolated strains of P aeruginosa, achieved by the classical diffusimetric system.


The annual evolution of cases showed an upward trend since 2009, the age groups most affected were infants (8.3% of cases), small children (11.1%) and the elderly over 65 years (26.5%). According to the Carmeli score, patients were divided into 3 categories: 4 patients (2.1%) with community infections, 112 patients (58.4%) with community apparent infections and 76 patients (39.5%) with probable nosocomial infections. The location of infection was: respiratory (49.6%), ear (16.1%), urinary (12.8%), digestive (10.1%), overinfected wounds (2.7%), sepsis (1.6%), other sites (ocular, articular) 1%.

Antibiotic sensitivity was: colistin 99.1%, quinolone 88.7%, cefoperazone-sulbactam 88%, aminoglycosides 87.7%, meropenem 84.4%, aztreonam 83.9%, piperacillin-tazobactam 82.14% ticarcillin-clavulanate 77.3%, ceftazidime 73.8%, cefpirome 72.7%, ceftriaxone 71.6%, cefepime 60.9%, amoxicillin-clavulanate 16.1%. The comparative analysis of antibiotic sensitivity according to the Carmeli score indicates caution in the use of cephalosporins and quinolones for patients with Carmeli score 3, since these patients probably have infections with antibiotic resistant strains. The risk for strains of P aeruginosa to be carbapenem-resistant showed respiratory and urinary localization and wound infections. Colistin was the safest alternative treatment for P aeruginosa strains resistant to meropenem, becoming the most effective antibiotic in the absence of its use for a long time.


The antibiotic resistance of P aeruginosa was determined by antibiotic selection pressure, the chemosensitivity data are useful in developing therapeutic recommendations tailored to the local situation.

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Correspondence to Dan Dumitru Hurezeanu.

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Open Access This article is published under license to BioMed Central Ltd. This is an Open Access article is distributed under the terms of the Creative Commons Attribution License ( ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver ( ) applies to the data made available in this article, unless otherwise stated.

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Hurezeanu, D.D., Dragonu, L., Canciovici, C. et al. Infections with Pseudomonas aeruginosa in patients admitted to the “Victor Babeş” Clinical Hospital of Infectious Diseases and Pneumology, Craiova. BMC Infect Dis 13 (Suppl 1), P40 (2013).

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