Conference Coverage

For Gram-negative bacteremias, 7 days of antibiotics is enough


 

REPORTING FROM ECCMID 2018

The primary outcome was a composite 90-day endpoint of all-cause mortality, clinical failure (relapse, new local complications, or distant complications), and readmission or hospital stay longer than 14 days. There were a number of secondary outcomes, including new infection, emergence of antibiotic resistance, total hospital and total antibiotic days, time to return to baseline activity, and adverse events.

The cohort was a mean of 71 years old. About 60% were functionally independent, and the mean Charlson comorbidity score was 2. Most of the infections (90%) were nosocomial. The urinary tract was the largest source of infection (69%). Other sources were abdominal, respiratory, central venous catheter, and skin or soft tissue.

Escherichia coli was the most common infective organism (62%), followed by Klebsiella species and Enterobacteriaceae. A small number of patients had Acinetobacter and Pseudomonas infections.

In the intent-to-treat analysis, the primary composite outcome of all-cause mortality or extended hospital stay occurred in 46% of the 7-day group and 50% of the 14-day group – not significantly different. The results were nearly identical in the per-protocol analysis (46% vs. 49.6%).

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