Risk Factors for Multidrug-Resistant Pseudomonas aeruginosa Infection

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  • 多剤耐性緑膿菌検出の危険因子の検討
  • タザイ タイセイ リョクノウキン ケンシュツ ノ キケン インシ ノ ケントウ

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Risk factors for nosocomial infection by multidrug-resistant Pseudomonas aeruginosa (MDRP) were investigated by a case-control study designed to compare patients with MDRP and control patients with imipenem, amikacin and ciprofloxacin-sensitive P. aeruginosa among patients hospitalized in 2001-2005. MDRP was detected in 44 patients (2.57%) of 1, 712 patients with P. aeruginosa infection (2, 509 strains) during the investigation period. Chi-square analysis of 16 factors found significant odds ratio (OR) >1 for the following eight factors: tracheostomy/intubation, central venous catheter, urinary tract catheter, carbapenem usage, nasogastric/gastric fistula tube, MRSA positive, aminoglycoside usage, length of hospitalization to detection (30 days or more). Logistic analysis showed carbapenem usage (OR; 7.94, 95% CI 2.60-24.3, p<0.001) and nasogastric/gastric fistula tube (OR; 4.51, 95% CI 1.35-15.1, p=0.014) were significant. MDRP infection control requires appropriate use of antimicrobials, especially carbapenems, and correct use of nasogastric/gastric fistula tube system.

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