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- W3120865730 abstract "Abstract Background Raoultella terrigena (formerly Klebsiella terrigena) is an environmental gram-negative rod, occasionally causing infections in humans, especially in elderly, immunosuppressed patients. Moreover, this organism tends to be multi-drug resistant, limiting treatment options. Evidence on clinical presentation and outcomes of this infection is limited; we conducted a cross-sectional study to get a better insight into these infections. Methods We conducted a cross-sectional study on all adult patients with clinical specimen positive for Raoultella terrigena at a 700-bedded tertiary care hospital in Karachi, Pakistan, between January 2013 to December 2018. Results A total of 58 patients with R. terrigena were identified. The median age was 61.5 years, and the male to female ratio was (60.9% vs. 39.1%). The most common site of infection was respiratory tract 28.3%, followed by urinary tract infections 26%, and central line-associated infections 15.2%. In 12 patients 22.6%, R. terrigena was a colonizer. Amongst infected cases, 23.6% were in shock, and of which 18.1% required vasopressors. 29.2% had respiratory failure requiring non-invasive ventilation in 13.9%, and mechanical ventilation in 15.3%. The previous history of multidrug-resistant organisms was present in 67.4% cases and the history of prior antibiotics use within the last six months was present in 78.3%. 91.3% of isolates were resistant to piperacillin-tazobactam and meropenem, 65.2% were resistant to colistimethate. However, tigecycline susceptibility maintained in 30.4% checked in n=31, 67.4% and fosfomycin sensitivity in 15.2% cases, checked in n=29, 63% cases. Eight patients lost to follow up. Majority of patients were treated with combination therapy n=31, 81.6% and meropenem plus colistemethate was the most commonly used combination n=11, 44%. The overall mortality rate was 44.7%. Among all recorded co-morbid conditions, chronic kidney disease was strongly associated with mortality (p= .029), as also the use of vasopressors (p= .005).Persons who had high (greater or equal to three) Charlson comorbidity index had high mortality (p=0.002). Conclusion R.terrigena is a highly drug-resistant organism with high mortality rate, and causes hospital-acquired respiratory tract infections in majority of patients. Disclosures All Authors: No reported disclosures" @default.
- W3120865730 created "2021-01-18" @default.
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- W3120865730 date "2020-10-01" @default.
- W3120865730 modified "2023-09-26" @default.
- W3120865730 title "1417. Clinical Features and Outcomes of raoultella terrigena Infections. A Single-Center Experience from Karachi, Pakistan" @default.
- W3120865730 doi "https://doi.org/10.1093/ofid/ofaa439.1599" @default.
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