Successful treatment of gram-negative bacillary meningitis with imipenem/cilastatin.

A patient with meningitis caused by a strain of Actinetobacter anitratus that was resistant to all commercially available antibiotics was treated with imipenem/cilastatin administered intravenously in a dose of 1 gm of imipenem every six hours. The minimal inhibitory concentration of imipenem against the isolate was less than or equal to 0.04 micrograms/ml. The patient tolerated the drug well and was cured after 12 days of therapy.