A retrospective review of all episodes of bloodstream infection (BSI)
in HIV-positive patients admitted to the Infectious Diseases Unit at t
he Pisa General Hospital from 1991 to 1994 was performed. Sixty-eight
episodes of BSI were recorded in 61 patients (5.8% of all patients adm
itted for HIV infection). BSI was community-acquired in 64.7% of cases
. The patients were mainly male and i.v. drug abusers with a mean age
of 33.8 yrs +/- 5.6 S.D. Sixty-four episodes occurred in AIDS patients
(CDC criteria). CD4 count was less than 100 in 49 patients. The most
frequent isolates were coagulase-negative staphylococci 33, S.aureus 7
, Pseudomonas spp 7, fungi 1, non-typhoidal Salmonella 4. The most com
mon sources of BSI were the skin or subcutaneous tissue infections and
intravascular catheters. The overall mortality associated with BSI wa
s 27.3%. Vancomycin and teicoplanin were active in vitro against all b
ut one of the staphylococcal isolates.