Conference Coverage

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



Likewise, none of the secondary outcomes posted a significant difference in favor of one treatment arm, including relapse (2.9% vs. 2.7%) and resistance development (10.8% vs. 9.7%).

Dr. Yahav pointed out that total antibiotic-use days were significantly less in the 7-day group, (5 days) than in the 14-day group (10 days). Patients in the short-duration group returned to their normal activities a day earlier than those in the longer-term group (2 days vs. 3 days), a difference that was statistically significant.

The total hospital stay from randomization to day 90 was only half a day shorter in the short-term group (mean, 3 days vs. 3.5 days). That was not a significant finding.

There were some differences in adverse events, although none was statistically significant. The short-duration arm had slightly more cases of kidney injury (0.5%), fewer cases of liver function abnormalities (–1.5%), and half as many rashes (two vs. four). There were two cases of Clostridium difficile in the short-use arm and one in the long-use arm, also not a significant difference.


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